Page 1: Service Manual
Brother Color Laser MFC SERVICE MANUAL MODEL: DCP-9055CDN/9270CDN MFC-9460CDN/9465CDN MFC-9560CDW/9970CDW Read this manual thoroughly before maintenance work. Keep this manual in a convenient place for quick and easy reference at all times. August 2010 SM-FAX118 8CE301 Confidential...
Page 2 TRADEMARKS The Brother logo is a registered trademark of Brother Industries, Ltd. Apple and Macintosh are trademarks of Apple Inc., registered in the United States and other countries. PCL is either a trademark or a registered trademark of Hewlett-Packard Company in the United States and other countries.
Page 3: Table Of Contents
CONTENTS REGULATION ................... I SAFETY INFORMATION ..............VI CHAPTER 1 SPECIFICATIONS 1. SPECIFICATIONS LIST ................1-1 1.1 General ........................1-1 1.2 Network Connectivity ....................1-6 1.3 Service Information..................... 1-7 1.4 Supplies ........................1-8 1.5 Paper .......................... 1-9 1.5.1 Paper handling ....................1-9 1.5.2 Media specifications ..................
Page 4 3.3 Communications Error Code ..................2-30 3.4 Error Cause and Remedy ..................2-33 3.5 Paper Feeding Problems ..................2-102 3.5.1 No feeding ..................... 2-102 3.5.2 Double feeding ....................2-105 3.5.3 Paper jam ...................... 2-105 3.5.4 Dirt on paper ....................2-109 3.5.5 Wrinkles on paper..................
Page 5 3.13 Others Problems....................2-138 3.13.1 The machine is not turned ON, or the LCD indication does not appear ..2-138 3.13.2 The fan does not work (Error code 2B, EC) ..........2-138 3.13.3 The USB direct interface does not work (Error code CA, etc) ..... 2-139 3.13.4 The room temperature is high or low............
Page 6 9.21 Gear Cover ......................3-67 9.22 Separate Roller ASSY .................... 3-68 9.23 ADF Spring/Separation Rubber Holder ASSY ............3-70 9.24 Second Side Scanning CIS/Second Side CIS Harness ......... 3-72 9.25 Upper Document Chute ASSY ................3-81 9.26 Document Front/ADF Open Sensor/Document First Side Rear Sensor/ Document Second Side Rear Sensor..............
Page 7 9.59 Internal Temperature Thermistor ................3-139 9.60 Fuser Fan ......................3-140 9.61 Paper Eject ASSY ....................3-142 9.62 Filter ASSY ......................3-143 9.63 Paper Eject Motor ....................3-144 9.64 Back Cover Sensor ASSY ..................3-145 9.65 Power Fan ......................3-146 9.66 Low-voltage Power Supply Unit................
Page 8 1.1.3 Rewriting the firmware using USB flash memory ..........4-3 1.2 Initialization of EEPROM of Main PCB ASSY (Maintenance Mode: Code 01) ... 4-4 1.3 Setting by Country (Maintenance Mode: Code 74) ............ 4-4 1.4 Setting the Serial Number ..................4-4 1.5 Sensitivity Adjustment of Density Sensor (Maintenance Mode: Code 72)....
Page 9 7.2 Scanning and Printing Check ................... 4-13 7.3 Placement of Scanner Unit in Position for Transportation (Maintenance Mode: Code 06) ................. 4-13 8. IF YOU REPLACE THE PANEL UNIT OR LCD UNIT ......4-13 8.1 Adjustment of Touch Panel (Maintenance Mode: Code 61) (Touch Panel Model) ... 4-13 8.2 Operation Check of LCD (Maintenance Mode: Code 12) .........
Page 10 1.4.26 Setting by country (Function code 74)............5-53 1.4.27 Sensitivity adjustment of registration mark sensor and check of belt unit surface (Function code 75)............... 5-55 1.4.28 Operational check of fans (Function code 78)..........5-57 1.4.29 Display of the machine history (log) (Function code 80) ....... 5-58 1.4.30 Error code indication (Function code 82)............
Page 11: Regulation
THIS EQUIPMENT IS DESIGNED TO WORK WITH A TWO WIRE ANALOGUE PSTN LINE FITTED WITH THE APPROPRIATE CONNECTOR. Brother advises that this product may not function correctly in a country other than where it was originally purchased, and does not offer any warranty in the event that this product is used on public telecommunication lines in another country.
Page 12: Internal Laser Radiation
■ IEC60825-1:2007 Specification (For 220-240V models only) This product is a Class 1 laser product as defined in IEC60825-1:2007 specifications. The label shown below is attached in countries where required. This product has a Class 3B Laser Diode which emits invisible laser radiation in the scanner unit.
Page 13 ■ EU Directive 2002/96/EC and EN50419 This equipment is marked with the above recycling symbol. It means that at the end of the life of the equipment you must dispose of it separately at an appropriate collection point and not place it in the normal domestic unsorted waste stream.
Page 14 Important A shielded interface cable should be used to ensure compliance with the limits for a Class B digital device. Changes or modifications not expressly approved by Brother Industries, Ltd. could void the user’s authority to operate the equipment. Confidential...
Page 15 FDA regulations and must be attached to laser products marketed in the United States. MANUFACTURED: Brother Technology (Shenzhen) Ltd. NO6 Gold Garden Ind., Nanling Buji, Longgang, Shenzhen, China This product complies with FDA performance standards for laser products except for deviations pursuant to Laser Notice No.50, dated June 24, 2007.
Page 16: Safety Information
SAFETY INFORMATION ■ Definitions of Warnings, Cautions, Notes and Memos The following conventions are used in this manual: Mark Contents Warnings tell you what to do to prevent possible personal injury. Electrical Hazard icons alert you to a possible electrical shock. Hot Surface icons warn you not to touch machine parts that are hot.
Page 17 ■ Safety Precautions Listed below are the various kinds of “WARNING” messages included in this manual. WARNING There are high voltage electrodes inside the machine. Before you clean the inside of the machine or replace parts, make sure that you have turned off the power switch and unplugged the machine from the AC power outlet.
Page 18 WARNING DO NOT touch the shaded parts shown in the illustration. These rollers may be rotating at high speed and can pinch or entrap your hand. Languages on the label may vary depending on your country. DO NOT use flammable substances, any type of spray or any organic solvent/liquids contains alcohol or ammonia to clean the inside or outside of the machine.
Page 19 CAUTION Lightning and power surges can damage this product! We recommend that you use a quality surge protection device on the AC power line, or unplug the machine during a lightning storm. Violently closing the top cover without mounting the toner cartridge and the drum unit can damage this product.
Page 20: Additional Information
■ Caution for Laser Product (WARNHINWEIS fur Laser drucker) CAUTION: When the machine during servicing is operated with the cover open, the regulations of VBG 93 and the performance instructions for VBG 93 are valid. CAUTION: In case of any trouble with the laser unit, replace the laser unit itself. To prevent direct exposure to the laser beam, do not try to open the enclosure of the laser unit.
Page 21: Chapter 1 Specifications
CHAPTER 1 SPECIFICATIONS Confidential...
Page 22 CHAPTER 1 SPECIFICATIONS This chapter lists the specifications of each model. CONTENTS 1. SPECIFICATIONS LIST ................1-1 1.1 General ........................1-1 1.2 Network Connectivity ....................1-6 1.3 Service Information..................... 1-7 1.4 Supplies ........................1-8 1.5 Paper .......................... 1-9 1.5.1 Paper handling ....................1-9 1.5.2 Media specifications ..................
Page 23: Specifications List
SPECIFICATIONS LIST General Model DCP-9055CDN DCP-9270CDN Print method Electrophotographic Laser beam printer (Single-pass) Resolution 600 x 600 dpi, 2,400 dpi (2400 x 600) quality Print speed One-sided Monochrome/Full Color: Up to Monochrome/Full Color: Up 24/25 ppm (A4/Letter size) to 28/30 ppm (A4/Letter size) * When loading A4 or Letter size paper from the paper tray.
Page 24 Model DCP-9055CDN DCP-9270CDN Weights With Carton 32.0 kg / 70.5 lb 34.0kg / 75.0 lb Without 26.5kg / 58.4 lb 30.0kg / 66.1 lb Carton, With toner/ drum Without 21.0kg / 46.3 lb 23.0kg / 50.7 lb Carton and toner/drum...
Page 25 Model MFC-9460CDN MFC-9465CDN MFC-9560CDW MFC-9970CDW Noise Level Sound Printing: 57 dB (A) pressure Ready: 33 dB (A) Sound power Printing (Mono): 6.74 B (A) Printing Printing (Color): 6.82 B (A) (Mono): Ready: 4.8 B (A) 6.88 B (A) Printing (Color): 6.94 B (A) Ready: 4.8 B (A)
Page 26: Computer Requirements
<Computer requirements> Available Hard Disk Supported Recom- Space Computer platform & Processor Minimum mended operating system version Speed Interface Drivers Applications ® ® ® Windows Windows Intel 64 MB 256 MB 150 MB 500 MB USB, ® Operating 2000 Profes- Pentium 10BASE- System...
Page 27 Mac OS X Intel Wireless 10.6.x Core 802.11 Processor For WIA, 1200 x 1200 resolution. Brother Scanner Utility enables to enhance up to 19200 x 19200 dpi. Third-party USB ports are not supported. ® ® PaperPort 11SE supports Microsoft SP4 or higher for Windows 2000.
Page 28: Network Connectivity
Network Connectivity Model DCP-9055CDN DCP-9270CDN Wired Network node NC-6900h type2 network type Network type 10BASE-T/100BASE-TX Ethernet Wireless Network node network type RF channels Communication mode Network security Specifications are subject to change without notice. Model MFC-9460CDN MFC-9465CDN MFC-9560CDW MFC-9970CDW Wired...
Page 29: Service Information
Service Information Part Approximate life Machine life Approximately 200,000 pages (A4/Letter) or 5 years Machine life (ADF) 50,000 pages or 5 years Machine life 50,000 pages or 5 years (Document scanner unit) Maximum monthly print Touch panel model: 60,000 pages volume Non Touch panel model: 40,000 pages Periodical...
Page 30: Supplies
Supplies Consumables Approximate life Starter Toner Black: Approximately 2,500 pages/cartridge Toner Yellow, Magenta, Cyan: cartridge Approximately 1,500 pages/cartridge Standard Toner Black: Approximately 2,500 pages/cartridge Yellow, Magenta, Cyan: Approximately 1,500 pages/cartridge High Capacity Black (For Europe): Approximately 4,000 pages/cartridge Toner Black (Except for Europe): N/A Yellow, Magenta, Cyan : Approximately 3,500 pages/cartridge Super High...
Page 31: Paper
Paper 1.5.1 Paper handling Model All models Paper tray 1 250 sheets Paper Input Paper tray 2 500 sheets MP tray 50 sheets Legal model: 50 sheets A4 model: 35 sheets Paper Face-down 150 sheets Output Face-up 1 sheet (Straight paper path) Duplex Specifications are subject to change without notice.
Page 32: Unprintable Area
Unprintable Area Portrait Landscape ® Windows printer driver and Macintosh printer driver ® BRScript printer driver for Windows and Macintosh 4.23 mm (0.16 inch) 4.23 mm (0.16 inch) Note: The area that cannot be printed on may vary depending on the paper size and the printer driver you are using.
Page 33: Copy
Copy Model DCP-9055CDN DCP-9270CDN Copy Speed Monochrome Up to 24/25 cpm (A4/Letter) Up to 28/30 cpm (A4/Letter) simplex Color (FB, ADF) First copy Monochrome Less than 19 seconds out time (from Ready mode and standard Tray) Color Less than 21 seconds...
Page 34: Scanner
1.10 Scanner Model DCP-9055CDN DCP-9270CDN Resolution Maximum scanning 1,200 (main scanning) x 2,400 dpi (sub (Optical) scanning) Maximum scanning 1,200 (main scanning) x 600 dpi (sub scanning) Resolution (Interpolated) Maximum scanning 19,200 (main scanning) x 19,200 dpi (sub scanning) Scanning Monochrome/ A4: 2.12 seconds...
Page 35: Unscannable Area
Specifications are subject to change without notice. Model MFC-9460CDN MFC-9465CDN MFC-9560CDW MFC-9970CDW PictBridge Direct print PDF version1.7, JPEG, Exif+JPEG, PRN(created by own printer driver) TIFF(scanned by Brother model), XPS version 1.0 Specifications are subject to change without notice. 1-13 Confidential...
Page 36: Chapter 2 Error Indication And Troubleshooting
CHAPTER 2 ERROR INDICATION AND TROUBLESHOOTING Confidential...
Page 37 CHAPTER 2 ERROR INDICATION AND TROUBLESHOOTING This chapter details error messages and codes which the incorporated self-diagnostic function of the machine will display if any error or malfunction occurs. If any error message appears, refer to this chapter to find which parts should be checked or replaced. The latter half of this chapter provides sample problems which could occur in the main sections of the machine and related troubleshooting procedures.
Page 38 3.8 Network Problems ....................2-126 3.8.1 Cannot make a print through network connection (Error code ED, EE)..................2-126 3.9 Document Feeding Problems ................. 2-127 3.9.1 No feeding ..................... 2-127 3.9.2 Double feeding ....................2-127 3.9.3 Paper jam ...................... 2-128 3.9.4 Wrinkles ......................2-129 3.10 Scanning Image Defect Troubleshooting..............
Page 39: Introduction
INTRODUCTION Troubleshooting is the countermeasure procedures that the service personnel should follow if an error or malfunction occurs with the machine. It is impossible to anticipate all of the possible troubles which may occur in future and determine the troubleshooting procedures, so this chapter covers some sample troubles.
Page 40: Initial Check
Initial Check Check the following items before attempting to repair the machine. ■ Operating environment (1) Put your machine on a flat, stable surface such as a desk that is free of vibration and shocks. (2) Use the machine in a well-ventilated room; use the machine within the following ranges of °...
Page 41 ■ Others (1) Condensation When the machine is moved from a cold place into a warm room, condensation may occur inside the machine, causing various problems as listed below. - Condensation on the surface of optical devices such as the scanner windows, lens, reflecting mirror, and protection glass, etc, may cause light print image.
Page 42: Overview
OVERVIEW Cross-section Drawing ■ Printer part <Back side> Exposure drum (Black) Exposure drum (Magenta) Paper eject roller 3 <Front> Exposure drum (Yellow) Exposure drum (Cyan) Paper eject roller 2 Registration rear actuator Registration roller MP registration front actuator Paper eject roller 1 MP separation roller Paper eject actuator MP paper pick-up roller...
Page 43 ■ ADF part (A4 model) <Left side> <Right side> Document front actuator Document pull-in roller Separate roller Second side scanning CIS Separation rubber ADF document support Document pull-in roller holder Second side document hold Flap ADF BC Paper guide Document front/ADF Document feed open actuator ADF cover BC...
Page 44 ■ ADF part (Legal model) <Left side> <Right side> Second side scanning CIS Separation rubber Document front actuator Second side Separate roller document hold Document pull-in roller Flap ADF BC ADF cover Document feed Document pull-in roller holder Pinch roller roller 1 ADF document support Document front/...
Page 45: Paper Feeding
Paper Feeding ■ Printer part <Front> <Back side> DX path Paper eject from the back side. Paper feed from the MP tray. Paper tray 1 path Fig. 2-5 Confidential...
Page 46 ■ ADF part (A4 model) <Right side> <Left side> [Face up] Document feed path Fig. 2-6 Confidential...
Page 47 ■ ADF part (Legal model) <Left side> <Right side> Document feed path [Face up] Fig. 2-7 Confidential...
Page 48: Operation Of Each Part
Operation of Each Part ■ Printer part Part name Operation T1 paper pick-up roller Feed the paper from the paper tray 1. T1 separation roller, Separate into single sheet from the paper tray 1. T1 separation pad T1 paper edge actuator Detect whether or not the paper tray 1 is installed.
Page 49 ■ ADF part Part name Operation Document front/ADF open Detect whether or not documents are loaded in the ADF actuator document support. Document pull-in roller Feed the documents loaded in the ADF document support. Separate roller, Separate the documents fed by the document pull-in roller into Separation rubber a single paper.
Page 50: Block Diagram
Block Diagram Front cover sensor Develop drive motor PF drive motor Toner/New sensor PCB Drum position sensor PCB Drum drive motor Develop release sensor PCB Develop release motor T1 registration front/rear sensor PCB T1 paper pick-up solenoid MP paper empty/registration front sensor PCB MP paper pick-up solenoid T1 paper edge sensor PCB Registration solenoid...
Page 51: Components
Components Panel unit ADF unit Toner cartridge Document scanner unit Drum unit Joint cover top Belt unit Joint cover base ASSY Paper eject ASSY Waste toner Fuser unit Side cover R ASSY Laser unit Wireless LAN PCB Back cover Low-voltage power supply unit Fuser fan Registration...
Page 52: Life Of Toner Cartridge And Drum Unit
Life of Toner Cartridge and Drum Unit ■ Life of toner cartridge <Method of detecting toner life> There are two messages, which are displayed on the LCD to indicate that toner reaches its life: “Toner Low” and “Replace Toner.” While “Toner Low” is displayed on the LCD when the toner sensor detects a certain amount of toner is used, “Replace Toner”...
Page 53: Cartridge Life
<Cartridge life> The cartridge life (at the point of in the figure above), which depends on the upper limit of the number of rotations of the developer roller, varies according to the average number of print pages per job. (See the table below.) The number of printable pages is larger when making continuous prints in one job because deterioration of the developer roller is low.
Page 54 ■ Life of drum unit <How to read the drum unit life> - It initially indicates 100% and gradually decreases. - It indicates 10% when the “Drum End Soon” appears on the LCD. <How to calculate the drum unit life> The drum unit life is based on the “drum counter”...
Page 55 1) Counter information, history information The counter and history information related to the following item are included. When it reaches the maximum count, each item is no longer counted. Total Page Count The total number of printed pages. The maximum count is 1 million pages.
Page 56: Error Indications
ERROR INDICATIONS This machine includes a self-diagnosis function. If the machine does not work normally it judges that an error has occurred, and indicates the corresponding error message on the LCD, which in turn helps the service men to quickly find out the problem. Error Codes The errors with a mesh background in the table below do not occur in the normal operation.
Page 57 Error Refer Error Refer Problem Problem codes codes Internal temperature sensor error. 2-39 Engine PCB transfer error. 2-46 (Communication error between Develop drive motor error. 2-40 the main CPU and sub CPU.) Belt drive motor error. 2-40 PF drive motor error. 2-40 Main PCB DRAM access error.
Page 58 Error Refer Error Refer Problem Problem codes codes The black drum unit will reach 2-50 It was detected that the size of 2-54 the end of life soon. the paper was less than the specified value. The yellow drum unit will reach 2-50 the end of life soon.
Page 59 Error Refer Error Refer Problem Problem codes codes Fuser unit error. (The center 2-57 Engine PCB error. (detection of 2-60 thermistor does not detect 60 °C PF drive motor lock error.) within the specified time.) Engine PCB error. 2-61 Fuser unit error. (The center 2-57 Communication error between 2-61...
Page 60 Error Refer Error Refer Problem Problem codes codes Paper jam occurred around the 2-71 Detection of incorrect registration 2-75 back cover at the time when the sensor measurement value when power was turned ON, or the implementing adjustment of back cover is open. inter-color position alignment.
Page 61 Error Refer Error Refer Problem Problem codes codes Scanning resolution change 2-80 Scanning outside light detection 2-83 error in the maintenance mode. error. Scanning failure upon FAX 2-80 White level data error. 2-84 transmission (Second side) Scanning failure upon FAX 2-84 transmission.
Page 62 Error Refer Error Refer Problem Problem codes codes The waste toner box is not 2-90 Read error in EEPROM of the 2-96 installed. laser unit. Waste toner box full. (The 2-90 Fuser fan error. 2-96 sensor detects that the waste Communication with the 2-96 toner is full.)
Page 63: Error Messages
Error Messages The error messages displayed on the LCD of the machine and their description are shown in the table below. Error Refer Error message Description codes Access Error The USB device is taken out while data is being processed. Calibrate Incorrect density sensor measurement 2-65...
Page 64 Error Refer Error message Description codes Drum unit error. (An drum error occurred 2-65 Drum Stop after the drum unit reached the end of life.) The back cover is open upon duplex 2-33 Duplex Disabled printing. (The back cover sensor is OFF.) 2-35 Fuser Error Failure in the center thermistor of the fuser...
Page 65 Error Refer Error message Description codes The black toner cartridge is not installed. 2-49 No Toner The yellow toner cartridge is not installed. 2-49 The magenta toner cartridge is not 2-49 installed. The cyan toner cartridge is not installed. 2-49 The paper tray 1 is not installed before 2-35 No Tray...
Page 66 Error Refer Error message Description codes Belt unit is at the end of life. 2-54 Replace Belt Unit Parts Drum unit is at the end of life. 2-38 Drum Unit 2-51 Fuser unit is at the end of life. 2-51 Fuser Unit Laser unit is at the end of life.
Page 67: Size Mismatch
Error Refer Error message Description codes The paper size of the MP tray does not 2-73 Size Mismatch match that of the print setting. The paper size of the paper tray 1 does not 2-73 match that of the print setting. The paper size of the paper tray 2 does not 2-73 match that of the print setting.
Page 68: Communications Error Code
Communications Error Code Code 1 Code 2 Cause Refer to: Wrong number called. 2-137 No dial tone detected before start of dialing. 2-137 Busy tone detected before dialing. 2-137 2nd dial tone not detected. 2-137 No loop current detected. 2-137 Busy tone detected after dialing or called.
Page 69 Code 1 Code 2 Cause Refer to: The available memory space of the remote terminal is less 2-137 than that required for reception of the confidential or relay broad-casting instruction. Remote terminal not equipped with color function. 2-137 Illegal coding system requested. 2-137 Illegal recording width requested.
Page 70 Code 1 Code 2 Cause Refer to: RTN, PIN, or ERR received at the calling terminal. 2-137 RTN, PIN, or ERR received at the called terminal. 2-137 Receive buffer full during receiving into memory. 2-137 Unable to receive the next-page data. 2-137 Unable to receive polling even during turn-around 2-137...
Page 71: Error Cause And Remedy
Error Cause and Remedy Check the User Check items first. If an error cannot be resolved, follow the procedures in numerical order in the Step field. ■ Error code 0B Touch panel no response error. <User Check> Turn OFF the power switch, and turn it ON again after a while. Step Cause Remedy...
Page 72 ■ Error code 10 Registration Registration failed. Press Start, and try again. Inter-color position alignment adjustment failure. (Error, which cannot be recorded, occurs.) Step Cause Remedy Main PCB failure Replace the main PCB ASSY. ■ Error code 11 Registration Registration failed. Press Start, and try again. Inter-color position alignment adjustment failure.
Page 73 ■ Error code 16 Duplex Disabled Reload paper, then press Start. Paper of unsupported size for duplex printing or paper of different sizes is loaded. <User Check> - Use the A4 or Letter size paper. Step Cause Remedy Registration rear actuator Correct the position of the registration rear catching on some position actuator.
Page 74 ■ Error code 18 No Tray A Tray is not detected, install Tray 2. The paper tray 2 is not installed before printing. (The cassette of the T2 paper edge sensor is open.) <User Check> - Open and close the paper tray 2. Step Cause Remedy...
Page 75 ■ Error code 1A Condensation Leave switched ON. Fully open the front cover. Wait 30 minutes, switch OFF and close cover, then switch ON. Condensation occurred on the laser unit. <User Check> - Open the front and rear covers and leave them for 30 minutes or more with the power ON. After that, close the front and rear covers and turn OFF and ON the power switch.
Page 76 ■ Error code 1E Replace Parts Drum Unit The drum unit will reach the end of life soon. <User Check> - Prepare a new drum unit. Step Cause Remedy Main PCB failure Replace the main PCB ASSY. Error code 1F Too Many Trays.
Page 77 ■ Error code 20 (K) Print Unable 20 Turn the power off and then back on again. Error code 21 (Y) Print Unable 21 Turn the power off and then back on again. Error code 22 (M) Print Unable 22 Turn the power off and then back on again.
Page 78 ■ Error code 25 Print Unable 25 Turn the power off and then back on again. Develop drive motor error. This error does not usually occur in the normal use. The conceivable causes are noise around the installation site, fluctuation of the power supply voltage, and failures in the software. <User Check>...
Page 79 ■ Error code 28 Print Unable 28 Turn the power off and then back on again. Drum drive motor error. <User Check> - If paper or any other foreign object is affixed to the exposure roller of the drum, remove it. Step Cause Remedy...
Page 80 ■ Error code 2A Print Unable 2A Turn the power off and then back on again. Develop release motor error. <User Check> - Turn OFF the power switch, and turn it ON again after a while. Step Cause Remedy Harness connection failure of Check the harness connection of the develop release motor develop release motor and...
Page 81 ■ Error code 2C (K) Print Unable 2C Turn the power off and then back on again. Error code 2D (Y) Print Unable 2D Turn the power off and then back on again. Error code 2E (M) Print Unable 2E Turn the power off and then back on again.
Page 82 ■ Error code 31 Print Unable 31 Turn the power off and then back on again. Density sensor error. Step Cause Remedy Harness connection failure of Check the harness connection of the registration mark sensor holder registration mark sensor holder ASSY and ASSY reconnect it.
Page 83 ■ Error code 33 Print Unable 33 Turn the power off and then back on again. Registration mark R PCB ASSY error. Error code 34 Print Unable 34 Turn the power off and then back on again. Registration mark L PCB ASSY error. This error does not usually occur in the normal use.
Page 84 ■ Error code 37 Print Unable 37 Turn the power off and then back on again. Belt unit temperature sensor error. Step Cause Remedy Harness connection failure of Check the harness connection of the belt belt unit temperature sensor unit temperature sensor and reconnect it. Belt unit temperature sensor Replace the registration mark sensor failure...
Page 85 ■ Error code 3B Print Unable 3B Turn the power off and then back on again. Main PCB DRAM access error. Step Cause Remedy Main PCB failure Replace the main PCB ASSY. Engine PCB failure Replace the engine PCB ASSY. ■...
Page 86 ■ Error code 3F Print Unable 3F Turn the power off and then back on again. Write error in engine firmware. This error does not usually occur in the normal use. The conceivable causes are noise around the installation site, fluctuation of the power supply voltage, and failures in the software. <User Check>...
Page 87 ■ Error code 44 (K) No Toner Open the Front Cover, then install Toner Cartridge. Black (K) Error code 45 (Y) No Toner Open the Front Cover, then install Toner Cartridge. Yellow (Y) Error code 46 (M) No Toner Open the Front Cover, then install Toner Cartridge. Magenta (M) Error code 47 (C) No Toner Open the Front Cover, then install Toner Cartridge.
Page 88 ■ Error code 48 Replace Drum (K) Black drum unit is at the end of life. Error code 49 Replace Drum (Y) Yellow drum unit is at the end of life. Error code 4A Replace Drum (M) Magenta drum unit is at the end of life. Error code 4B Replace Drum (C) Cyan drum unit is at the end of life.
Page 89 ■ Error code 50 Replace Parts Drum Unit Drum unit is at the end of life. Error code 51 Replace Parts PF Kit MP MP paper feeding kit is at the end of life. Error code 52 Replace Parts PF Kit 1 Paper feeding kit1 is at the end of life.
Page 90 ■ Error code 56 Cover is Open Close the Fuser Cover which can be found behind the Back Cover of the machine. The fuser cover is open. <User Check> - Close the fuser cover properly. Step Cause Remedy Paper eject actuator catching on Correct the position of the paper eject some position actuator.
Page 91 ■ Error code 58 Fuser Error Turn the power off, then on again. Leave the machine for 15 min. Error code 59 Self-Diagnostic Will Automatically Restart within 15 minutes. Fuser unit error. Step Cause Remedy Harness connection failure Check the harness connection between between fuser unit connector and the fuser unit connector and paper eject paper eject sensor PCB ASSY...
Page 92 ■ Error code 5B Short paper Open the Back Cover and then press Start. It was detected that the length of the paper under printing was less than the specified value. Error code 5C Small paper Open the Back Cover and then press Start. It was detected that the size of the paper was less than the specified value.
Page 93 ■ Error code 5F WT Box End Soon The waste toner box near full. (The sensor detected that the waste toner became near full.) <User Check> - Prepare a new waste toner box. Step Cause Remedy Waste toner sensor failure Check the sensor performance following the procedure described in “Function code...
Page 94 ■ Error code 64 (C) Toner Low (C) Prepare New Cyan (C) Toner Cartridge. Error code 65 (M) Toner Low (M) Prepare New Magenta (M) Toner Cartridge. Error code 66 (Y) Toner Low (Y) Prepare New Yellow (Y) Toner Cartridge. Error code 67 (K) Toner Low (K) Prepare New Black (K) Toner Cartridge.
Page 95 ■ Error code 6A Print Unable 6A Turn the power off and then back on again. Fuser unit error. (The center thermistor does not detect 60 °C within the specified time.) Error code 6B Print Unable 6B Turn the power off and then back on again. Fuser unit error.
Page 96 ■ Error code 6F Print Unable 6F Turn the power off and then back on again. Fuser unit error. (The center and side thermistors detect extremely high temperature.) (Detection of hardware.) Step Cause Remedy Fuser unit connector connection Reconnect the connector of the fuser unit. failure Fuser unit failure Replace the fuser unit.
Page 97 ■ Error code 71 Print Unable 71 Turn the power off and then back on again. Laser unit error. Error code 72 Print Unable 72 Turn the power off and then back on again. Beam detecting sensor (Black/Yellow) error of the laser unit. Error code 73 Print Unable 73 Turn the power off and then back on again.
Page 98 ■ Error code 75 Cooling Down Wait for a while Cooling down the inside of the machine to protect it. Step Cause Remedy Internal temperature sensor Replace the internal temperature sensor. failure Main PCB failure Replace the main PCB ASSY. ■...
Page 99 ■ Error code 7B Print Unable 7B Turn the power off and then back on again. Engine PCB error. Step Cause Remedy Harness connection failure Check the harness connection between between engine PCB and main the engine PCB ASSY and main PCB ASSY, and reconnect it.
Page 100 ■ Electrodes location of the drum unit and toner cartridge Erase lamp lens Fig. 2-10 ■ Electrodes location of the belt unit Fig. 2-11 2-62 Confidential...
Page 101 ■ Electrodes location of waste toner box Fig. 2-12 ■ Electrodes location of main body Developer roller Charging (Corona wire) Grid Exposure drum Erase lamp lens Belt transfer roller Paper powder cleaner Belt cleaning roller Waste toner cleaner roller Waste toner cleaner shaft Fig.
Page 102 ■ Error code 7E Replace Belt Open the Front Cover, replace the Belt Unit. Belt unit is at the end of life. (The operation is stopped.) <User Check> - Replace the belt unit with a new one and reset the counter. (Refer to “2.2 Parts Life Reset Function”...
Page 103 ■ Error code 81 Calibrate Calibration failed. See Troubleshooting chapter in User's Guide. Incorrect density sensor measurement value when implementing adjustment of color density. Error code 82 Calibrate Calibration failed. Press Start, and try again. Density patch measurement is not completed normally when implementing adjustment of color density.
Page 104 ■ Error code 84 Jam Rear Open the Back Cover and remove the jammed paper. Paper jam at the rear section of the machine. <User Check> - Check if the paper is jammed. If jammed, remove it. Step Cause Remedy Foreign object around paper Remove the foreign object.
Page 105 ■ Error code 86 No Tray A Tray is not detected, install Tray 2. The paper tray 2 is not installed. <User Check> - Check if the paper tray 2 is installed into the machine. - Check if the paper is jammed in the paper tray 2. If jammed, remove it. Step Cause Remedy...
Page 106 ■ Error code 88 Jam Inside Open the Front Cover, pull out the Drum Unit completely and remove the jammed paper. Paper jam inside the machine. <User Check> - Check if the paper is jammed. If jammed, remove it. Step Cause Remedy Harness connection failure of...
Page 107 ■ Error code 8A Jam Tray 1 Remove the jammed paper from Tray 1. Paper jam in the paper tray 1. <User Check> - Check if the paper is jammed in the paper tray 1. If jammed, remove it. - Check if the paper is loaded into the paper tray 1 correctly. - Turn back the paper loaded in the paper tray 1 or change the orientation of the paper by 180°.
Page 108 ■ Error code 8B Jam Tray 2 Remove the jammed paper from Tray 2. Paper jam in the paper tray 2. <User Check> - Check if the paper is jammed in the paper tray 2. If jammed, remove it. - Check if the paper is loaded into the paper tray 2 correctly. - Turn back the paper loaded in the paper tray 2 or change the orientation of the paper by 180°.
Page 109 ■ Error code 8C Jam MP Tray Remove the jammed paper from Multi Purpose Tray and press Start. Paper jam in the MP tray. <User Check> - Check if paper is jammed around the MP tray. If paper is jammed, remove the jammed paper. - Check if the paper is loaded into the MP tray correctly.
Page 110 ■ Error code 8E Registration Registration failed. Press Start, and try again. Error in the adjustment of inter-color position alignment result when implementing it. <User Check> - Check if there is a scratch, dirt or the like on the belt unit. If there is, replace the belt unit with a new one.
Page 111 ■ Error code 90 Size Mismatch Reload correct paper. The paper size of the MP tray does not match that of the print setting. Error code 91 Size Mismatch Reload correct paper. The paper size of the paper tray 1 does not match that of the print setting. Error code 92 Size Mismatch Reload correct paper.
Page 112 ■ Error code 97 Size mismatch Reload correct paper. A paper size, which is not supported by the paper tray 1, is specified in the paper size of the data. Error code 98 Size mismatch Reload correct paper. A paper size, which is not supported by the paper tray 2, is specified in the paper size of the data.
Page 113 ■ Error code 9D Registration Registration failed. See Troubleshooting chapter in User's Guide. Detection of incorrect registration sensor measurement value when implementing adjustment of inter-color position alignment. <User Check> - Check if there is a scratch, dirt or the like on the belt unit. If there is, replace the belt unit with a new one.
Page 114 ■ Error code A0 Scan Unable A0 Remove the original document. Turn the power off, then on again. Timeout error during waiting for completion of second side scanning data transfer. Step Cause Remedy Second side scanning CIS Replace the second side scanning CIS. failure Main PCB failure Replace the main PCB ASSY.
Page 115 ■ Error code A2 Document Jam Clear the scanner jam, then press the Stop Key. During scanning, 90 cm or longer of a document is detected. <User Check> - Check if the document is jammed in the ADF. If it is jammed, remove it. Step Cause Remedy...
Page 116 ■ Error code A4 Cover is Open Close the ADF Cover, then press the Stop Key. The ADF cover is open. <User Check> - Close the ADF cover. Step Cause Remedy Coming off of document front/ Re-assemble the document front/ADF ADF open actuator open actuator.
Page 117 ■ Error code A7 Scan Unable A7 See Troubleshooting and routine maintenance chapter in User’s Guide. Scanning color parameter file failure. Error code A8 Scan Unable A8 See Troubleshooting and routine maintenance chapter in User’s Guide. Scanning color parameter error for recording the image. Step Cause Remedy...
Page 118 ■ Error code AB Scanner Error Scanning resolution change error in the maintenance mode. This error does not usually occur in the normal use. The conceivable causes are noise around the installation site, fluctuation of the power supply voltage, and failures in the software. <User Check>...
Page 119 ■ Error code AE Scanner Locked Open the Document Cover and release scanner lock lever. Press Stop key. The document scanner unit fails to detect the home position. This error does not usually occur in the normal use. The conceivable causes are noise around the installation site, fluctuation of the power supply voltage, and failures in the software.
Page 120 ■ Error code B1 Scanner Error Dark level offset data level error for scanning. * This error is indicated on the LCD in the maintenance mode. Error code B2 Scanner Error Gain control data level error for scanning. * This error is indicated on the LCD in the maintenance mode. Error code B3 Scanner Error The scanning area setting left edge detection error.
Page 121 ■ Error code B7 Scanner Error A/D converter standard voltage failure; at High side. * This error is indicated on the LCD in the maintenance mode. Error code B8 Scanner Error A/D converter standard voltage failure; at Low side. * This error is indicated on the LCD in the maintenance mode. Step Cause Remedy...
Page 122 ■ Error code BB Scanner Error White level data error. * This error is indicated on the LCD in the maintenance mode. Step Cause Remedy Document scanner unit failure Replace the document scanner unit. Main PCB failure Replace the main PCB ASSY. ■...
Page 123 ■ Error code BF Scan Unable BF Document is too long for duplex scanning. Press Stop Key. The document is too long for ADF duplex feeding. <User Check> - When you scan a document longer than the specified size (356.0 mm in length), scan the document by dividing it into several pages using the document scanner unit.
Page 124 ■ Error code C4 Tray 2 Error Take out Tray 2 and push it back in firmly. Paper tray 2 pressing plate up/down error. <User Check> - Check if the paper tray 2 is installed into the machine. Step Cause Remedy Harness connection failure of Check the harness connection of the...
Page 125 ■ Error code C6 Toner Error One or more Toner Cartridges are not detected. Pull out and reinsert all 4 Toner Cartridges. Pressure engagement/disengagement failure of toner cartridge. <User Check> - Insert the toner cartridge again. Step Cause Remedy Harness connection failure of Check the harness connection of the develop release motor develop release motor and...
Page 126 ■ Error code C9 DIMM Error Defective DIMM is installed. <User Check> - Replace the DIMM. Step Cause Remedy Main PCB failure Replace the main PCB ASSY. ■ Error code CA Unusable Device Remove the Device. Turn the power off and back on again. USB device overcurrent error.
Page 127 ■ Error code CC No Fuser Unit Install the Fuser Unit. The fuser unit is not installed. This error does not usually occur in the normal use. The conceivable causes are noise around the installation site, fluctuation of the power supply voltage, and failures in the software. <User Check>...
Page 128 ■ Error code CE No Waste Toner Install the Waste Toner Box. Refer to the User's Guide for instructions. The waste toner box is not installed. <User Check> - Check if the waste toner box is installed into the machine. - Replace the waste toner box with a new one.
Page 129 ■ Error code D0 Touch panel initialization failure. Step Cause Remedy Harness connection failure of Check the harness connection of the LCD unit LCD unit and reconnect it. LCD unit failure Replace the LCD unit. Main PCB failure Replace the main PCB ASSY. ■...
Page 130 Replace the main PCB ASSY. ■ Error code DF Machine Error Unplug machine, then call Brother. FAX communication error of main PCB. This error does not usually occur in the normal use. The conceivable causes are noise around the installation site, fluctuation of the power supply voltage, and failures in the software.
Page 131 ■ Error code E1 Print Unable E1 Turn the power off and then back on again. Program error. Step Cause Remedy Main PCB failure Replace the main PCB ASSY. ■ Error code E2 Print Unable E2 Turn the power off and then back on again. When the center thermistor is lower than the idle temperature, it is detected that the side thermistor temperature is higher than 280 °C.
Page 132 ■ Error code E4 Run out of paper. This error does not usually occur in the normal use. The conceivable causes are noise around the installation site, fluctuation of the power supply voltage, and failures in the software. <User Check> - Turn OFF the power switch, and turn it ON again after a while.
Page 133 ■ Error code E8 The scanned data fails to be recorded in the buffer RAM. This error does not usually occur in the normal use. The conceivable causes are noise around the installation site, fluctuation of the power supply voltage, and failures in the software. <User Check>...
Page 134 ■ Error code EB Print Unable EB Turn the power off and then back on again. Read error in EEPROM of the laser unit. Step Cause Remedy Harness connection failure Check the harness connection between between laser unit and main the laser unit and main PCB ASSY, and PCB ASSY reconnect it.
Page 135 ■ Error code EE Print Unable EE Turn the power off and then back on again. Unavailability of communication after connecting to the wireless LAN PCB is detected. (Wireless LAN model only) Step Cause Remedy Harness connection failure of Check the harness connection of the wireless LAN PCB wireless LAN PCB and reconnect it.
Page 136 ■ Error code F0 Print Unable F0 Turn the power off and then back on again. USB flash memory does not work properly. <User Check> - Replace the USB flash memory. - Turn OFF the power switch, and turn it ON again after a while. Step Cause Remedy...
Page 137 ■ Error code F3 Main PCB error. Error code F4 High Temperature Decrease room temperature and humidity to allow the machine to operate. The waste toner box is at the end of life. Error code F5 Main PCB communication error. Error code F6 P.C.I error.
Page 138 ■ Error code F9 Machine Error F9 Unplug machine, then call Brother. The country code is not entered properly. Step Cause Remedy Power turned OFF while the Re-enter the country code. function code 74 is being (Refer to “1.4.26 Setting by country executed and “PARAMETER...
Page 139 ■ Error code FE Calibrate Calibration failed. Press Start, and try again. Detection of incorrect measurement value of density sensor sensitivity calibration. Step Cause Remedy Harness connection failure of Check the harness connection of the registration mark sensor holder registration mark sensor holder ASSY and ASSY reconnect it.
Page 140: Paper Feeding Problems
Paper Feeding Problems Problems related to paper feeding are end user recoverable if following the User Check items. If the same problem occurs again, follow each procedure in the order of the number described in the Step column in the tables below. 3.5.1 No feeding ■...
Page 141 ■ Paper fails to be supplied from the paper tray 2 (Error code 27, etc) <User Check> - Check if the Tray Use setting is fixed to other tray. - Check if the paper is loaded into the paper tray 2 correctly. - Check if the size of the paper is smaller than the specifications.
Page 142 ■ Paper fails to be supplied from the MP tray (Error code 27, etc) - Check if the Tray Use setting is fixed to other tray. - Check if the paper is loaded into the MP tray correctly. - Check if the thickness of the paper is 60 to 163 g/m Step Cause Remedy...
Page 143: Double Feeding
3.5.2 Double feeding <User Check> - Check if paper is properly loaded in each paper tray. - Turn back the paper loaded in the each paper tray or change the orientation of the paper by 180°. - Check if the thickness of the paper is 60 to 105 g/m .
Page 144 ■ Paper jam at the paper tray 2 (Error code 8B, etc) <User Check> - Check if the paper is loaded into the paper tray 2 correctly. - Turn back the paper loaded in the paper tray 2 or change the orientation of the paper by 180°. - Adjust the paper guide corresponding to the paper size.
Page 145 ■ Paper jam at the MP tray (Error code 8C) <User Check> - Check if the paper is loaded into the MP tray correctly. - Turn back the paper loaded in the MP tray or change the orientation of the paper by 180°. - Adjust the paper guide corresponding to the paper size.
Page 146 ■ Paper jam in the back cover and paper eject section (Error code 84, etc.) Step Cause Remedy Foreign object around paper eject Remove the foreign object. Coming off of back flapper ASSY Re-assemble the back flapper ASSY. Paper eject actuator Re-assemble the paper eject actuator.
Page 147: Dirt On Paper
3.5.4 Dirt on paper <User Check> - Check if the paper is loaded into the paper tray correctly. - Turn back the paper loaded in the paper tray or change the orientation of the paper by 180°. - Replace the toner cartridge with a new one. - Replace the waste toner box with a new one.
Page 148: Image Defect Troubleshooting
Image Defect Troubleshooting 3.6.1 Image defect examples Light on the Faulty registration (2-113) Dark (2-113) One color is light (2-112) whole page (2-111) All one color (2-116) Completely blank Poor fixing (2-114) Image distortion (2-115) (2-115) Horizontal stripes (2-118) Dirt on the back of paper (2-116) Vertical streaks (2-117) White vertical streaks on one color image (2-118) White horizontal stripes on one color image (2-119)
Page 149: Pitch Indicated In Roller Image
3.6.2 Pitch indicated in roller image Image defects which occur periodically may be caused by a failure of the roller. By referring to the table below, specify the cause based on the pitch indicated in the image of each roller. Parts name The pitch which appears in the image Developer roller...
Page 150: One Color Is Light
■ One color is light <User Check> - Open and close the front cover and make print again. - Check the machine’s environment. High temperature and high humidity or low temperature and low humidity conditions can cause this problem. - Wipe the scanner windows of the laser unit with a soft, lint-free cloth. (Refer to Fig.
Page 151: Faulty Registration
■ Faulty registration Step Cause Remedy Registration rear actuator Correct catching of the registration rear catching on some position actuator. Engine PCB failure Replace the engine PCB ASSY. ■ Dark <User Check> - Check the machine’s environment. High temperature and high humidity or low temperature and low humidity conditions can cause this problem.
Page 152: Poor Fixing
■ Poor fixing <User Check> - Use the specified paper. - Adjust the color calibration from the control panel. - Adjust the auto registration from the control panel. - Check the machine’s environment. High temperature and high humidity or low temperature and low humidity conditions can cause this problem. - Replace the belt unit with a new one.
Page 153: Image Distortion
■ Completely blank <User Check> - Replace the belt unit with a new one. - Replace the toner cartridge or drum unit with a new one. Step Cause Remedy Developing bias voltage Clean the electrodes of the drum unit and conduction failure main body.
Page 154: All One Color
■ All one color <User Check> - Replace the drum unit with a new one. Memo You can check this image defect with the function code 71. (Refer to “1.4.24 Color test pattern (Function code 71)” in Chapter Step Cause Remedy Corona wire failure Clean the electrodes of the drum unit and...
Page 155: Vertical Streaks
■ Vertical streaks <User Check> - This problem may occur with noise which is caused by dirt on the corona wire in the drum unit. In this case, clean the corona wire. - Refer to the User’s guide and remove the dirt on the exposure drum using a cotton swab.
Page 156: Horizontal Stripes
■ Horizontal stripes <User Check> - Clean the inside of the machine and the corona wire in the drum unit. - Replace the drum unit with a new one. Step Cause Remedy Dirt on charged electrode Clean the electrodes of the drum unit and main body.
Page 157: White Horizontal Stripes On One Color Image
■ White horizontal stripes on one color image <User Check> - The problem may disappear by itself. Try printing multiple pages to clear this problem especially if the machine has not been used for a long time. - Replace the toner cartridge with a new one. - The drum unit may be damaged.
Page 158: White Spots On One Color Image
■ White spots on one color image <User Check> - Toner may be empty. Replace the toner cartridge with a new one. - Refer to the User’s guide and remove the dirt on the exposure drum using a cotton swab. - The drum unit may be damaged.
Page 159: One Color Spots Or Dirt
■ One color spots or dirt <User Check> - Damp (wet) paper might be used. Try to changing to freshly unopened paper. - Toner may be empty. Replace the toner cartridge with a new one. - Refer to the User’s guide and remove the dirt on the exposure drum using a cotton swab. - The drum unit may be damaged.
Page 160: Horizontal Lines
■ Downward fogging of solid color <User Check> - Toner may be empty. Replace the toner cartridge with a new one. Step Cause Remedy High-voltage power supply Replace the high-voltage power supply PCB PCB failure ASSY. Engine PCB failure Replace the engine PCB ASSY. Main PCB failure Replace the main PCB ASSY.
Page 161 ■ Inter-color position alignment <User Check> - Implement the adjustment of inter-color position alignment from the control panel. - Replace the belt unit with a new one. - Replace the drum unit with a new one. Step Cause Remedy Phase displacement of drum Align the drum phase.
Page 162: Hollow Print
■ Unstable color density <User Check> - Make a print on a different type of paper. - Replace the belt unit with a new one. - Replace the drum unit with a new one. - Replace the waste toner box with a new one. - Replace the toner cartridge with a new one.
Page 163: Print Crease
■ Print crease <User Check> - Change the paper to thick paper. - Check if paper is not damp. - Switch the envelope levers. - Make prints as lowering the envelope levers while the PR arm covers is drawn out. (Refer to the figure below.) Step Cause Remedy...
Page 164: Software Setting Problems
Software Setting Problems The end user can solve problems pertaining to software, for instance, print cannot be made from a computer although test print and machine setting print can be made from the machine, by following the User Check items. If the same problem occurs, follow each procedure in the order of the number described in the Step column in the tables below.
Page 165: Document Feeding Problems
Document Feeding Problems 3.9.1 No feeding <User Check> - Check if the document is inserted correctly to the depths. - Check if the number of the documents complies with the specifications in the specification list. Legal model: 50 sheets or less; A4 model: 35 sheets or less - Check if the ADF cover is closed.
Page 166: Paper Jam
3.9.3 Paper jam ■ Paper jam in the ADF cover (Error code A3, etc) <User Check> - Check whether the document does not use the paper which is thinner than the specification. Step Cause Remedy Foreign object inside the area Remove foreign objects inside the area around ADF cover around the ADF cover, if any.
Page 167: Wrinkles
■ Paper jam in the paper eject section Step Cause Remedy Foreign object around paper Remove foreign objects around the paper eject eject, if any. Breakage of the drive gear Replece the drive frame ASSY. Eject roller failure Replece the ADF unit. 3.9.4 Wrinkles <User Check>...
Page 168: Scanning Image Defect Troubleshooting
3.10 Scanning Image Defect Troubleshooting 3.10.1 Image defect examples Light (2-130) Dark (2-131) Faulty registration (2-131) Vertical streaks (2-132) Completely White vertical blank (2-132) streaks (2-132) Fig. 2-20 3.10.2 Troubleshooting image defect ■ Light on the page (Error code BB, BC, etc) <User Check>...
Page 169 ■ Faulty registration (Error code B3, B4, BE, BF, etc) - ADF Step Cause Remedy Fine adjustment of scan start Perform the fine adjustment of scan start position misalignment position. (Function code Document first side rear Correct catching of the document first side actuator catching on some rear actuator.
Page 170 ■ Completely blank <User Check> - Check if the first side and second side of the document are reversed. Step Cause Remedy CIS unit failure Replace the document scanner unit. Second side scanning CIS Replace the upper document chute ASSY. failure Main PCB failure Replace the main PCB ASSY.
Page 171: Troubleshooting Of The Control Panel
3.11 Troubleshooting of the Control Panel 3.11.1 Nothing is displayed on the LCD <User Check> - Verify if the power switch is turned off. Step Cause Remedy AC cord failure Replace the AC cord. Connection between main Connect the connector between the main PCB and panel PCB PCB ASSY and panel PCB ASSY correctly.
Page 172: Lamp Malfunction
3.11.3 Lamp malfunction Step Cause Remedy Key sticking Re-assemble the panel unit. Connection between main Connect the connector between the main PCB and panel PCB PCB ASSY and panel PCB ASSY correctly. Fine adjustment of touch Perform the fine adjustment of touch panel. panel misalignment (for (Function code models with a touch panel)
Page 173: Troubleshooting Of Fax Functions
3.12 Troubleshooting of FAX Functions 3.12.1 FAX can't send it <User Check> - Verify that the telephone cord is securely inserted into the right socket. - Check the dial mode setting again. Step Cause Remedy Connection between main Connect the connector between the main PCB and NCU PCB PCB ASSY and NCU PCB ASSY correctly.
Page 174: Fax Cannot Be Transmitted And Received
3.12.3 FAX cannot be transmitted and received. <User Check> - Verify that the telephone cord is securely inserted into the right socket. - Check the dial mode setting again. Step Cause Remedy Connection between main Connect the connector between the main PCB and NCU PCB PCB ASSY and NCU PCB ASSY correctly.
Page 175: Dialing Function Does Not Switch Between "Tone" And "Pulse
3.12.6 Dialing function does not switch between “Tone” and “Pulse” Step Cause Remedy Connection between main Connect the connector between the main PCB and NCU PCB PCB ASSY and NCU PCB ASSY correctly. NCU PCB failure Replace the NCU PCB ASSY. Main PCB failure Replace the main PCB ASSY.
Page 176: Others Problems
3.13 Others Problems 3.13.1 The machine is not turned ON, or the LCD indication does not appear Step Cause Remedy AC cord failure Replace the AC cord. Harness connection failure of Reconnect the panel PCB ASSY harness. panel PCB ASSY Harness connection failure of Reconnect the LCD harness.
Page 177: The Usb Direct Interface Does Not Work (Error Code Ca, Etc)
3.13.3 The USB direct interface does not work (Error code CA, etc) <User Check> - Check if the data is supported device. - Replace the USB memory and check if the interface works. - Turn OFF and ON the power. Step Cause Remedy...
Page 178: Chapter 3 Disassembly And Assembly
CHAPTER 3 DISASSEMBLY AND ASSEMBLY Confidential...
Page 179 CHAPTER 3 DISASSEMBLY AND ASSEMBLY This chapter describes procedures for disassembling and assembling the machine with relates notes. The provided disassembly order flow enables you to take in the quickest way to get an involved part at a glance. At the start of disassembling, you can check the disassembly order flow which guides you through a shortcut to get to the part.
Page 180 9.15 Hinge ASSY L......................3-61 9.16 Hinge R/Hinge R Support/Hinge Arm R ..............3-62 9.17 Document Stopper....................3-63 9.18 Document Sub Tray....................3-63 9.19 ADF Cover ASSY ....................3-64 9.20 Document Hold ASSY/Earth Spring ............... 3-65 9.21 Gear Cover ......................3-67 9.22 Separate Roller ASSY ....................
Page 181 9.53 Drum Position Sensor PCB ASSY................ 3-131 9.54 Registration Solenoid ASSY ................. 3-132 9.55 Develop Release Sensor PCB ASSY/Mono Solenoid ASSY ....... 3-133 9.56 Fuser Develop Motor ASSY ................. 3-135 9.57 PF Plate ASSY/T1 Solenoid ASSY ..............3-136 9.58 Toner/New Sensor PCB ASSY ................3-138 9.59 Internal Temperature Thermistor ................
Page 182: Safety Precautions
SAFETY PRECAUTIONS To avoid creating secondary problems by mishandling, follow the warnings and precautions below during maintenance work. WARNING Some parts inside the machine are extremely hot immediately after the machine is used. When opening the front cover or back cover to access any parts inside the machine, never touch the shaded parts shown in the following figures.
Page 183: Packing
PACKING Quick set up guide CD User’s guide AC cord bag ASSY Carton option Polystyrene pad R Polystyrene pad L Machine Polystyrene pad bace Carton Confidential...
Page 184: Screw Catalogue
SCREW CATALOGUE Taptite bind B Screw bind Taptite bind B Screw bind M3x8 M3x4 Taptite bind B Shoulder screw M3x10 Taptite bind B Shoulder screw M3x12 Taptite bind B Shoulder screw M4x12 Taptite bind S Taptite pan Taptite bind S M3x5 Taptite pan B M4x14 Taptite bind S...
Page 185: Screw Torque List
SCREW TORQUE LIST Note: For verifying the shape of each screw, refer to "3. SCREW CATALOGUE" in this chapter. Tightening torque Location of screw Screw type Q' ty N²m(kgf²cm) Fuser cover L Taptite bind S M3x8 0.70±0.10 (7±1) Fuser cover R Taptite bind S M3x8 0.70±0.10 (7±1) Fuser unit...
Page 186 Tightening torque Location of screw Screw type Q' ty N²m(kgf²cm) Main PCB ASSY Taptite cup S M3x6 SR 0.70±0.10 (7±1) Engine PCB ASSY Taptite cup S M3x6 SR 0.70±0.10 (7±1) Main shield plate Taptite cup S M3x6 SR 0.70±0.10 (7±1) Top beam Taptite cup S M3x6 SR 0.70±0.10 (7±1)
Page 187 Tightening torque Location of screw Screw type Q' ty N²m(kgf²cm) MP drive frame Taptite bind B M3x10 0.50±0.10 (5±1) High-voltage power supply Taptite cup S M3x6 SR 0.50±0.10 (5±1) shield ASSY T2 cover rear Taptite cup S M3x10 SR 0.80±0.10 (8±1) T2 cover left Taptite cup S M3x6 SR 0.80±0.10 (8±1)
Page 188: Lubrication
LUBRICATION The kind of the lubricating oil Lubrication point Quantity of lubrication (Maker name) MOLYKOTE PG-661 (W) ER shaft bush 1 mm dia. ball (Dow Corning) BDX313 (A) (Kanto Kasei) Hinge ASSY L 2 mm dia. ball BDX2 FLOIL GE-676 (Kanto Kasei) Separate roller shaft 1.5 mm dia.
Page 189 1 place GE1.5 Separate roller shaft Conductive bush 1 place GE1.5 Retaining ring E5 3 mm GE1.5: FLOIL GE-676 (1.5 mm dia. ball) 1 place GE1.5 Document feed roller shaft Conductive bush 1 place GE1.5 Retaining ring E5 3 mm GE1.5: FLOIL GE-676 (1.5 mm dia.
Page 190: Overview Of Gears
OVERVIEW OF GEARS When ordering spare parts, please refer to Parts reference list. ■ Top drive ASSY <Development view> <Layout view> <Name of gears> LY0192 Develop joint gear Z48 LY0213 Gear Z60 LY0196 Drum coupling gear Z52 LY0217 Gear Z50 LY0197 Drum double idle gear Z64-26 LY0214...
Page 191 ■ PF ASSY <Development view> <Layout view> <Name of gears> LU5132 Registration gear LY0298 Registration/Pinch roller gear bush LY0299 Pinch roller drive gear * These parts are subject to change without notice. 3-10 Confidential...
Page 192: Harness Routing
HARNESS ROUTING Laser Unit Laser unit “b” Front “c” Clamp Upper cable rack “a” “c” “b” Hole Panel cable rack “c” “b” Hole Upper cable rack Panel cable rack Hook “a” CN19 CN25 Hook Front Engine PCB ASSY Main PCB ASSY 3-11 Confidential...
Page 193 Develop Release Motor Develop release motor Panel cable rack Hook CN20 Front Engine PCB ASSY Front Cover Sensor Panel cable rack Front cover sensor Hook CN14 Hook Front Engine PCB ASSY 3-12 Confidential...
Page 194 Top Drive ASSY Develop release “d” sensor PCB ASSY Mono solenoid ASSY Hook “c” Hook Hook “a” “e” “b” Hook Hook Top Drive ASSY(back side) Front Drum position sensor PCB ASSY Registration solenoid ASSY Develop FFC holder “e” Fuser develop Hook motor ASSY Ferrite core...
Page 195 PF Plate ASSY Engine PCB ASSY Hook PF line holder Hook Hook Front Hook T1 solenoid ASSY PF plate ASSY PF cleaner drive ASSY Toner/New Sensor PCB ASSY Hook Panel cable rack Hook Hook CN16 Toner/New sensor PCB ASSY Front Engine PCB ASSY 3-14 Confidential...
Page 196 Low-voltage Power Supply PCB ASSY Low-voltage power supply cover Paper eject sensor PCB ASSY “a” Low-voltage power supply PCB ASSY “b” “c” Front Lower cable rack Engine PCB ASSY Main PCB ASSY Hook CN17 CN16 “d” “c” Front Lower cable rack Top drive ASSY “b”...
Page 197 Paper Eject ASSY High-voltage power supply PCB ASSY (for CN1,CN2) “c2” “c1” Hook Hook Ferrite core Back cover sensor ASSY Paper eject ASSY Front Ferrite core “b” Hook “a” “a” “c1” Paper eject “c2” motor “c1” “b” “c2” “b” <Top view> Hook “a”...
Page 198 Registration Mark Sensor Holder ASSY Front Shutter solenoid High-voltage power supply PCB ASSY Hook Hole Registration mark sensor holder ASSY Hook Lower cable rack Front “a” Ferrite core “b” Main PCB ASSY Ferrite core CN19 CN18 CN20 Lower cable rack “b”...
Page 199 MP Paper Empty/Registration Front Sensor PCB ASSY MP ASSY MP paper empty/ registration front Registration/Pinch sensor PCB ASSY roller gear bush Front MP paper empty/ registration front sensor PCB ASSY Registration/Pinch roller gear bush Engine PCB ASSY Hook CN12 Hook MP ASSY Hook Registration/Pinch...
Page 200 PF ASSY T1 registration T1 paper edge sensor front/rear sensor PCB ASSY PCB ASSY PF ASSY T1 registration front/rear sensor PCB ASSY T1 paper edge sensor Front PCB ASSY MP sector solenoid Hook “a” Hole Engine PCB ASSY “a” “b” “c”...
Page 201 <Duplex scanning model only> Front Front Second side scanning CIS ADF unit Upper document chute ASSY Hole Hole Drive frame ASSY Document cover ASSY Hole Scanner unit ADF harness Front Hole ADF unit Second side CIS harness Slit FFC holder ASSY Joint film Hook Hole...
Page 202: Document Scanner
Document Scanner Document scanner unit Document scanner unit Hook Hole Document scanner unit harness Joint cover top Joint film Ferrite core Joint cover top Hook Ferrite core FB harness unit Main PCB ASSY Main PCB ASSY Front Front 3-21 Confidential...
Page 203: Panel Unit
Panel Unit Panel unit Scanner unit Hole Hook Panel key harness ASSY Front Main PCB NCU ASSY NCU harness ASSY Back cover upper NCU FG harness ASSY Joint cover base ASSY Hook Hook Main PCB Front Hook 3-22 Confidential...
Page 204: Wireless Lan Pcb
Joint cover base ASSY Front Joint cover Main USB host harness ASSY Main PCB ASSY USB host relay PCB ASSY Hole Access cover Front Hook Hook plate ASSY Hook CN11 Lock plate Wireless LAN PCB Wireless LAN PCB Hook Joint cover base ASSY Front Hook Main wireless LAN harness ASSY...
Page 205: Internal Temperature Thermistor
Speaker Joint cover base ASSY Hook Main PCB ASSY Speaker unit Hook Hook CN10 Front Internal Temperature Thermistor Main PCB Hook Internal Internal temperature temperature thermistor thermistor CN21 Internal temperature thermistor Hook Lower cable rack Hook 3-24 Confidential...
Page 206: Disassembly Flow
DISASSEMBLY FLOW Disassembly / Re-Assembly (second) 3-25 Confidential...
Page 207 Disassembly / Re-Assembly (second) 3-26 Confidential...
Page 208: Disassembly Procedure
DISASSEMBLY PROCEDURE ■ Preparation Prior to proceeding with the disassembly procedure, (1) Unplug - the AC cord, - the USB cable, if connected, - the LAN cable, if connected, and - USB flash memory drive, if connected. - LAN port cap (2) Remove - the Paper tray, - the Toner cartridge,...
Page 209: Paper Tray
Paper Tray (1) Release the Hook to remove the T1 separation pad holder ASSY from the Paper tray. T1 separation pad holder ASSY “A” Paper tray “B” Hook Fig. 3-1 Assembling Note: Mount the T1 separation pad holder ASSY in a way that “A” of the T1 separation pad holder ASSY is inserted into “B”...
Page 210: Back Cover/Back Cover Stopper Arm L/R
Back Cover/Back Cover Stopper Arm L/R (1) Open the Back cover. Main body Back cover <Back side> Fig. 3-3 (2) Remove the Back cover stopper arm L and R from the Main body. Main body Back cover stopper arm L Back cover stopper arm L Back cover stopper arm R <Back side>...
Page 211 (3) Remove the Shaft of the Back cover from the Bush on the right side of the Main body. Main body Bush Shaft Back cover <Back side> Fig. 3-5 (4) Remove the Back cover. Main body Back cover <Back side> Fig.
Page 212 (5) Remove the Back cover stopper arm L and R from the Back cover. Back cover stopper arm L Back cover Back cover stopper arm R Back cover stopper arm R Back cover Center Fig. 3-7 3-31 Confidential...
Page 213: Fuser Cover
Fuser Cover (1) Open the Back flapper ASSY. Main body Back flapper ASSY <Back side> Fig. 3-8 (2) Release of the Fuser cover lock lever L and R and open the Fuser cover ASSY. Main body Fuser cover lock lever L Fuser cover Fuser cover lock lever R <Back side>...
Page 214 (3) Remove the Taptite bind S M3x8 screw from the Fuser cover L. (4) Release the Hook to remove the Fuser cover L from the Main body. Main body Fuser cover L Taptite bind S M3x8 Hook <Back side> Fig. 3-10 (5) Slide the Fuser cover in the direction of the arrow 5a to remove it to the front.
Page 215: Fuser Unit
Fuser Unit (1) Remove the Taptite bind S M3x8 screw from the Fuser cover R. (2) Release the Hook to remove the Fuser cover R from the Main body. <Back side> Hook Main body Fuser cover R Taptite bind S M3x8 Fig.
Page 216 (4) Disconnect the Electrode terminal from the Fuser unit. Electrode terminal (small) Fuser unit Electrode terminal (large) Fig. 3-14 (5) Remove the two Taptite pan B M4x14 screws to remove the Fuser unit from the Main body. Main body Taptite pan B M4x14 Fuser unit <Back side>...
Page 217 Note: - Do not apply a physical impact or vibration to the Fuser unit. - Do not touch the roller and electrodes as shown in the figure below to prevent breakage of the Fuser unit. Fuser unit Fig. 3-16 3-36 Confidential...
Page 218: Side Cover L/Access Cover
Side Cover L/Access Cover (1) Open the Front cover. Main body Front cover <Front> Fig. 3-17 (2) Remove the Taptite bind S M3x8 screw from the front of the Side cover L. (3) Remove the Taptite bind B M4x12 screw from the side of the Side cover L. Taptite bind S M3x8 Taptite bind B M4x12 <Front>...
Page 219 (4) Remove the two Taptite bind S M3x8 screws from the back of the Side cover L. Side cover L Taptite bind S M3x8 <Back side> Fig. 3-19 (5) Release the Hooks 1 and 2 at the same time, and then release the Hooks 3 to 6 in numerical order.
Page 220 * Inside of Side cover L Hook 8 Hook 8 Hook 7 Hook 9 Side cover L Hook 6 Hook 5 Hook 1 <Front> <Back> Hook 2 Hook 3 Hook 4 Fig. 3-21 (6) Remove the Access cover from the Side cover L. Access cover Side cover L Fig.
Page 221: Side Cover R Assy
Side Cover R ASSY (1) Remove the Taptite bind S M3x8 screw from the front of the Side cover R ASSY. (2) Remove the Taptite bind B M4x12 screw from the side of the Side cover R ASSY. Side cover R ASSY Taptite bind S M3x8 Taptite bind B M4x12 <Front>...
Page 222 (4) Release the Hooks 1 and 2 at the same time, and then release the Hooks 3 to 6 in numerical order. Release the Hook 7. Release the Hooks 8 and 9 to remove the Side cover R ASSY from the Main body. Hook 9 Hook 6 Main body...
Page 223: Duplex Feed Assy
Duplex Feed ASSY (1) Remove the two Taptite bind B M3x12 screws to remove the Duplex feed ASSY from the Main body. Main body <Back side> Duplex feed ASSY Taptite bind B M3x12 Fig. 3-27 3-42 Confidential...
Page 224: Mp Cover Assy/Mp Paper Guide Assy
MP Cover ASSY/MP Paper Guide ASSY (1) Close the Front cover. (2) Open the MP cover ASSY. Front cover MP cover ASSY <Front> Fig. 3-28 (3) Remove the Pin of the MP link L and R from the MP cover ASSY. MP link R MP cover ASSY MP link...
Page 225 (4) Remove the Pin of the MP link L and R from the MP paper guide ASSY. <Front> MP link R MP paper guide ASSY MP paper guide ASSY MP link L MP cover ASSY MP link L/R Fig. 3-30 (5) Remove the MP paper guide ASSY from the MP cover ASSY.
Page 226: Mp Link L/R
(6) Remove the two Pins to remove the MP cover ASSY from the Front cover. Front cover MP cover ASSY <Front> Fig. 3-32 MP Link L/R (1) Remove the MP link L and R from the Front cover. Front cover MP link L MP link R MP link L...
Page 227: Front Cover Arm L/R
9.10 Front Cover Arm L/R (1) Open the Front cover. (2) Release the Hook to remove the Forced develop release link from the Front cover. Hook Forced develop release link Forced develop release link Front cover <Front> Fig. 3-34 (3) Release the Hook to remove the Joint release link from the Front cover. Hook Joint release link Joint release link...
Page 228 (4) Remove the Front cover from the Main body. Boss Main body Boss Front cover arm R Boss Boss Front cover arm L Front cover <Front> Fig. 3-36 (5) Remove the Taptite bind B M4x12 screw from the Front cover arm L. Front cover arm L Taptite bind B M4x12 Front cover...
Page 229 (6) Release the Hook to remove the Front cover arm L from the Front cover. Front cover arm L Hook Front cover Fig. 3-38 (7) Remove the Taptite bind B M4x12 screw from the Front cover arm R. Taptite bind B M4x12 Front cover arm R Front cover Fig.
Page 230 (8) Release the Hook to remove the Front cover arm R from the Front cover. Front cover arm R Hook Front cover Fig. 3-40 3-49 Confidential...
Page 231: Front Cover Release Button/Front Cover Release Button Spring
9.11 Front Cover Release Button/Front Cover Release Button Spring (1) Fasten the Hook of the Front cover release button to the Rib of the Front cover. Hook Front cover release button Front cover release button Front cover Fig. 3-41 (2) Tilt the Front cover release button in the direction of the arrow 2. (3) Slide it in the direction of the arrow 3 to remove the shaft, and then remove the Front cover release button from the Front cover.
Page 232 (4) Remove the Front cover release button spring from the Front cover release button. Front cover release button Front cover release button spring Fig. 3-43 Assembling Note: When assembling the Front cover release button spring, assemble “A” and “B” as shown in the figure.
Page 233: Paper Stopper
9.12 Paper Stopper (1) Open the Scanner unit. Scanner unit Main body <Front> Fig. 3-45 (2) Remove the two Pins to remove the Paper stopper from the Joint cover top. Paper stopper Joint cover top <Front> Fig. 3-46 3-52 Confidential...
Page 234: Pull Arm L/Pull Arm R/Pull Arm Spring
9.13 Pull Arm L/Pull Arm R/Pull Arm Spring (1) Open the Pull arm L and Pull arm R to release the Hooks from the joint of the Scanner unit. Hook Scanner unit Hook Pull arm R Pull arm L <Front> Fig.
Page 235: Adf Unit
9.14 ADF Unit (1) Remove the Ferrite core 1 from the FFC film. Ferrite core 1 FFC film FFC film Document scanner unit harness Ferrite core 1 Main shield cover plate ASSY Fig. 3-49 (2) Remove the seven Taptite cup S M3x6 SR screws to remove the Main shield cover plate ASSY from the Main body.
Page 236 (3) Remove one Taptite cup S M3x6 SR screw each for the FB FG harness ASSY and ADF FG harness ASSY to remove them from the Main body. FB FG harness ASSY ADF FG harness ASSY Taptite cup S M3x6 SR Main body Taptite cup S M3x6 SR Fig.
Page 237 (5) Open the Scanner unit. Remove the Ferrite core 1 from the Document scanner unit harness. Scanner unit Document scanner unit harness Main body Ferrite core 1 Document scanner Ferrite core 1 unit harness Fig. 3-53 (6) Remove the Document scanner unit harness and Second side CIS harness from the Ferrite core 2 and 3 attached to the Film.
Page 238 (7) Remove the Harness from the Hook to take it out from the Hole in the Joint cover top. (8) Take out the FB FG harness ASSY and ADF FG harness ASSY from the Hole in the Joint cover top. Hole ADF FG harness ASSY FB FG...
Page 239 (10) Remove the two Taptite bind B M4x12 screws to open the ADF unit. ADF unit Scanner unit Taptite bind B M4x12 Fig. 3-57 (11) Lift the ADF unit until the Hinge ASSY L and Hinge R are removed from the Scanner unit. ADF unit Scanner unit Hinge ASSY L...
Page 240 (12) Release the three Hooks to remove the FFC holder ASSY from the Scanner unit. ADF unit Scanner unit FFC holder ASSY Harness Second side CIS harness FFC holder ASSY Hook Hook Fig. 3-59 3-59 Confidential...
Page 241 Assembling Note: When the Scanner unit is replaced, be sure to fold and assemble the Document scanner unit harness as shown in the figure. <A4 Model> Fold down FFC along with the solid line Fold up FFC along with the dotted line Document scanner unit harness 45°...
Page 242: Hinge Assy L
9.15 Hinge ASSY L (1) Turn the ADF unit upside down. (2) Remove the three Taptite cup S M3x12 screws to remove the Hinge ASSY L from the ADF unit. Taptite cup S M3x12 Hinge ASSY L Taptite cup S M3x12 ADF unit Fig.
Page 243: Hinge R/Hinge R Support/Hinge Arm R
9.16 Hinge R/Hinge R Support/Hinge Arm R (1) Remove the Taptite cup B M3x10 screw to remove the Hinge R and Hinge R support from the ADF unit. Hinge R Hinge R support Taptite cup B M3x10 ADF unit Fig. 3-63 (2) Remove the three Taptite cup B M3x10 screws to remove the Hinge arm R from the ADF unit.
Page 244: Document Stopper
9.17 Document Stopper (1) Return the ADF unit to the original position. (2) Remove the two Pins to remove the Document stopper from the ADF unit. Document stopper ADF unit Fig. 3-65 9.18 Document Sub Tray (1) Open the Document sub tray. (2) Remove the two Pins to remove the Document sub tray from the ADF unit.
Page 245: Adf Cover Assy
9.19 ADF Cover ASSY (1) Open the ADF cover ASSY. (2) Remove the two Pins to remove the ADF cover ASSY from the ADF unit. ADF cover ASSY ADF unit Fig. 3-67 3-64 Confidential...
Page 246: Document Hold Assy/Earth Spring
9.20 Document Hold ASSY/Earth Spring (1) As pressing the Document hold ASSY, slide it in the direction of the arrow 1b. Document hold ASSY ADF cover ASSY Fig. 3-68 (2) Remove the Pin "a" from the Hook of the Document hold ASSY to remove the Document hold ASSY from the ADF cover ASSY.
Page 247 (3) Remove the Earth spring from the ADF cover ASSY. Earth spring ADF cover ASSY Boss Fig. 3-70 Assembling Note: When assembling the Earth spring, be sure to assemble it as shown in the figure below. Earth spring ADF cover ASSY ADF cover ASSY Earth spring Fig.
Page 248: Gear Cover
9.21 Gear Cover (1) Release the two Hooks of the ADF unit. ADF unit Hook Hook Hook ADF unit Gear cover Hook ADF unit Fig. 3-72 (2) Remove the Gear cover from the ADF unit. ADF unit Gear cover Hook Fig.
Page 249: Separate Roller Assy
9.22 Separate Roller ASSY (1) Rotate the Conductive bush to release the lock. Separate roller ASSY ADF unit Conductive bush Fig. 3-74 (2) Remove the shaft end at the opposite side to remove the Separate roller ASSY from the ADF unit. Note: When removing the Separate roller ASSY, be careful not to damage the Flap ADF.
Page 250 Assembling Note: When assembling the Separate roller ASSY, be sure to assemble it in a way that the Flap ADF comes under the Document feed roller S ASSY. Flap ADF Document feed Separate roller ASSY roller S ASSY Flap ADF Fig.
Page 251: Adf Spring/Separation Rubber Holder Assy
9.23 ADF Spring/Separation Rubber Holder ASSY (1) Remove the two Pins to remove the Separation rubber holder ASSY from the Upper document chute ASSY. Upper document chute ASSY Separation rubber holder Separation rubber holder ASSY Fig. 3-77 (2) Remove the ADF spring from the Upper document chute ASSY. ADF spring Upper document chute ASSY Fig.
Page 252 Assembling Note: There are cases where the ADF spring enters the Upper document chute ASSY from the mounting hole of the Separation rubber holder ASSY. In this case, remove the Upper document chute ASSY from the ADF unit and take out the ADF spring. In the case that the Upper document chute ASSY has been removed, be sure to assemble the ADF spring and Separation rubber first, and then assemble the Upper document chute ASSY to the ADF unit.
Page 253: Second Side Scanning Cis/Second Side Cis Harness
9.24 Second Side Scanning CIS/Second Side CIS Harness Note: Disassemble it in a place without dust. (1) Rotate the Conductive bush to release the lock. ADF unit Document feed roller S ASSY Conductive bush Fig. 3-80 (2) Remove the shaft end at the opposite side to remove the Document feed roller S ASSY from the ADF unit.
Page 254 (3) Release the two Hooks to remove the Cover glass stopper from the ADF unit. Hook ADF unit Cover glass stopper Fig. 3-82 (4) Remove the Cover glass from the ADF unit. Cover glass ADF unit Fig. 3-83 3-73 Confidential...
Page 255 (5) Remove the CIS spacer from the both ends of the Second side scanning CIS. CIS spacer Second side scanning CIS CIS spacer ADF unit Fig. 3-84 (6) Lift the Second side scanning CIS to remove the Second side CIS harness. Second side scanning CIS Second side CIS harness ADF unit...
Page 256 (7) Remove the two CIS spring from the ADF unit. CIS spring CIS spring ADF unit Fig. 3-86 (8) Remove the Second side CIS harness from the ADF unit. Second side CIS harness ADF unit Fig. 3-87 3-75 Confidential...
Page 257: Installing Procedure
Assembling Note: Since the Second side CIS harness might be broken when you remove it from the FFC holder ASSY, be sure to replace it with a new Second side CIS harness. When assembling a new Second side CIS harness, be sure to assemble it in accordance with the following procedure. <...
Page 258 (3) Pass the Second side CIS harness through the ADF unit. Second side CIS harness Upper document chute ASSY Lower chute ASSY Fig. 3-90 (4) Affix double-sided adhesive tape to the FFC holder ASSY as shown in the figure below. (If the double-sided adhesive tape has already been affixed, be sure to remove it, and then affix new double-sided adhesive tape.) FFC holder ASSY...
Page 259 (5) Fold the Second side CIS harness at the position 200 mm away from the Second side scanning CIS side. Reinforcement plate Fold down FFC along with the solid line Second side CIS harness Reinforcement tape 200 mm Fig. 3-92 (6) Align the Second side CIS harness to the angle of the Rib of the FFC holder ASSY and pass it through the FFC holder ASSY as shown in the figure below, and then affix it to the double-sided adhesive tape affixed to the FFC holder ASSY.
Page 260 (7) Pass the Second side CIS harness through the Document scanner unit. ADF unit Second side CIS harness FFC holder ASSY Document scanner unit Fig. 3-94 3-79 Confidential...
Page 261 (8) Fold the Second side CIS harness at the Main PCB ASSY side. <A4 Model> Fold down FFC along with the solid line Fold up FFC along with the dotted line <Main PCB ASSY side> Second side CIS harness Reinforcement plate 1 mm 45°...
Page 262: Upper Document Chute Assy
9.25 Upper Document Chute ASSY (1) Turn the ADF unit upside down. (2) Remove the Taptite cup B M3x10 screw from the ADF unit. Taptite cup B M3x10 ADF unit Fig. 3-97 (3) Return the ADF unit to the original position. (4) Remove the five Taptite cup B M3x10 screws from the Upper document chute ASSY.
Page 263: Document Front/Adf Open Sensor/Document First Side Rear Sensor/Document Second Side Rear Sensor
9.26 Document Front/ADF Open Sensor/ Document First Side Rear Sensor/ Document Second Side Rear Sensor Memo: This part can be replaced without disassembling Second side scanning CIS. (1) Shift the Upper document chute ASSY to the position shown in the figure so that it will not interfere with the work.
Page 264 (2) Push and open the Rib to remove the Document front/ADF open sensor from the Lower document chute. Document front/ADF open sensor Lower document chute Fig. 3-100 (3) Disconnect the Connector from the Document front/ADF open sensor. Connector Document front/ADF open sensor Fig.
Page 265 (4) Lift the film, and then push and open the Rib to remove the Document second side rear sensor from the Lower document chute. Document second side rear sensor Film Lower document chute Document second side rear sensor Document first side rear sensor Fig.
Page 266: Drive Frame Assy/Document Feed Roller Assy
9.27 Drive Frame ASSY/Document Feed Roller ASSY (1) Remove the Ejection roller bush from the Ejection roller ASSY. Ejection roller bush Lower chute ASSY Ejection roller ASSY Fig. 3-104 (2) Rotate the Conductive bush to release the lock. Conductive bush Lower chute ASSY Conductive bush Ejection roller ASSY...
Page 267 (3) Remove the shaft end at the opposite side to remove Ejection roller ASSY from the Lower chute ASSY. Ejection roller ASSY Lower chute ASSY Fig. 3-106 (4) Remove the three Taptite cup B M3x10 screws from the Lower chute ASSY. (5) Release the Hook to remove the Lower chute ASSY from the Document cover ASSY.
Page 268 (6) Release the Pin of the Conductive bush and rotate it to the position shown in the figure. Conductive bush Conductive bush ADF unit Document feed roller ASSY Fig. 3-108 (7) Remove the shaft end at the opposite side to remove the Document feed roller ASSY from the Lower chute ASSY.
Page 269 (8) Remove the Taptite cup S M3x6 screw from the Lower chute ASSY. Taptite cup S M3x6 ADF FG harness Lower chute ASSY Fig. 3-110 (9) Remove the three Taptite cup B M3x10 screws to remove the Drive frame ASSY from the Lower chute ASSY.
Page 270 (10) Disconnect the Connector from the ADF motor. Drive frame ASSY ADF motor Connector Fig. 3-112 3-89 Confidential...
Page 271: Adf Motor
9.28 ADF Motor (1) Release the Hook to remove the Gear 43 from the Drive frame ASSY. Hook Gear 43 Drive frame ASSY Fig. 3-113 (2) Remove the Screw pan (S/P washer) M3x6 screw to remove the ADF motor from the Drive frame ASSY.
Page 272: Document Hold Assy
9.29 Document Hold ASSY (1) Turn the Lower chute ASSY upside down. (2) Remove the two Pins to remove the Document hold ASSY from the Lower chute ASSY. Document hold ASSY Lower chute ASSY Fig. 3-115 9.30 Document Cover ASSY/Grip Cover (1) Turn the Document cover ASSY upside down.
Page 273: Panel Cover Assy
9.31 Panel Cover ASSY (1) Release the eight Hooks to remove the Panel cover ASSY from the Scanner unit. Hook Hook Hook Panel cover ASSY Hook Scanner unit Fig. 3-117 3-92 Confidential...
Page 274: Scanner Unit/Panel Unit Generic
9.32 Scanner Unit/Panel Unit Generic (1) Remove the four Taptite cup B M3x10 screws from the Panel unit generic. Taptite cup B M3x10 Taptite cup B M3x10 Panel unit generic Scanner unit Fig. 3-118 (2) Release the four Hooks to remove the Panel unit generic from the Scanner unit. Note: Be careful not to pull the Panel unit generic strongly because the Harness is connected to it.
Page 275 (3) Disconnect the Connector (CN4) from the Panel PCB ASSY. Panel unit generic Connector Panel PCB ASSY Fig. 3-120 3-94 Confidential...
Page 276: Panel Pcb Assy
9.33 Panel PCB ASSY (1) Disconnect the Connector (CN2) and Flat cable (CN3) from the Panel PCB ASSY. Lock Flat cable Flat cable Connector Panel PCB ASSY Fig. 3-121 (2) Release the ten Hooks to remove the Panel PCB ASSY from the Panel unit generic. Note: The Panel PCB ASSY consists of two PCBs, and they are connected with a Flat cable.
Page 277: Printed Rubber Key R/C/L
9.34 Printed Rubber Key R/C/L (1) Remove the Printed rubber key C from the Panel cover generic. Printed rubber key C Panel cover generic Fig. 3-123 (2) Remove the Printed rubber key L and R from the Panel cover generic. Printed rubber key L Printed rubber key R Panel cover generic...
Page 278 Assembling Note: - Upon assembling, assemble the Printed rubber key L and Printed rubber key R first, and then assemble the Printed rubber key C. - Check if it is firmly inserted into the Positioning pin. Positioning pin Positioning pin Positioning pin Printed rubber key R Printed...
Page 279: Lcd/Back Light Module/Lcd Cover
9.35 LCD/Back Light Module/LCD Cover (1) Remove the Panel light guide and Caution lamp lens from the Panel cover generic. Caution lamp lens Panel light guide Panel cover generic Fig. 3-126 (2) Release the four Hooks to remove the LCD cover from the Panel cover generic. Note: Be careful because there are cases where the LCD and Back light module come off at the same time.
Page 280 (3) Remove the LCD from the Back light module. Back light module Fig. 3-128 3-99 Confidential...
Page 281: Pull Arm Guide/Lock Claw
9.36 Pull Arm Guide/Lock Claw (1) Remove the Lock claw to remove the Pull arm guide from the Joint cover top. Pull arm guide Lock claw Lock claw Pull arm guide Joint cover top Fig. 3-129 3-100 Confidential...
Page 282: Joint Cover Top/Joint Film
9.37 Joint Cover Top/Joint Film (1) Remove the Joint film from the Joint cover top. Joint cover top Joint cover top Joint film Joint film Fig. 3-130 (2) Remove the eight Taptite bind B M4x12 screws from the Joint cover top. Taptite bind B M4x12 Taptite bind B M4x12 Taptite bind B M4x12...
Page 283 (3) Release the eight Hooks to remove the Joint cover top from the Main body. Hook Joint cover top Hook Hook Hook Main body Hook <Front> Fig. 3-132 Assembling Note: When affixing the Joint film, be sure to affix it to the Joint cover top as shown in the figure below.
Page 284: Ncu Pcb Assy
9.38 NCU PCB ASSY (1) Remove the Screw pan (S/P washer) M3.5x6 screw to remove the NCU FG harness ASSY from the Main body. (2) Disconnect the Connector (CN9) from the Main PCB ASSY. (3) Disconnect the wiring from the Main PCB ASSY. Main body Connector NCU FG harness ASSY...
Page 285 (5) Remove the Screw pan (S/P washer) M3.5x6 screw to remove the NCU shield cover from the NCU unit. Screw pan (S/P washer) M3.5x6 NCU shield cover NCU unit Fig. 3-136 (6) Remove the two Taptite cup S M3x6 SR screws to remove the NCU PCB ASSY from the NCU shield plate.
Page 286: Back Cover Upper
(7) Remove the NCU harness ASSY from the NCU PCB ASSY. NCU PCB ASSY NCU harness ASSY Fig. 3-138 Harness routing: Refer to “ NCU” 9.39 Back Cover Upper (1) Remove the four Taptite bind B M4x12 screws from the Back cover upper. (2) Release the two Hooks to remove the Back cover upper from the Main body.
Page 287: Joint Cover
9.40 Joint Cover (1) Disconnect the Connector (CN11) and cables from the Main PCB ASSY. CN3 CN4 CN10 CN12 CN13 Main PCB ASSY CN15 CN17 CN11 CN22 CN25 CN27 CN23 CN24 CN26 CN30 Fig. 3-140 (2) Remove the Taptite bind B M4x12 screw and Taptite cup S M3x6 SR screw from the Main body.
Page 288 (3) Release the two Hooks to remove the Joint cover from the Main body. Joint cover Joint cover Hook Main body Hook Main body Fig. 3-142 Harness routing: Refer to “ USB” 3-107 Confidential...
Page 289: Usb Host Relay Pcb Assy
9.41 USB Host Relay PCB ASSY (1) Remove the two Taptite bind B M4x12 screws to remove the USB host relay PCB ASSY from the Joint cover. Taptite bind B M4x12 Boss Panel ground plate Boss Joint cover USB host relay PCB ASSY Fig.
Page 290: Wireless Lan Holder/Wireless Lan Pcb
9.42 Wireless LAN Holder/Wireless LAN PCB (1) Disconnect the Connector (CN17) and cables from the Main PCB ASSY. CN3 CN4 CN10 CN12 CN13 Main PCB ASSY CN15 CN17 CN11 CN22 CN25 CN27 CN23 CN24 CN26 CN30 Fig. 3-145 (2) Release the Hook to remove the Wireless LAN holder from the Main body. Wireless LAN holder Hook Main body...
Page 291 (3) Release the three Hooks to remove the Wireless LAN PCB from the Wireless LAN holder. Hook Wireless LAN PCB Hook Wireless LAN holder Hook Fig. 3-147 (4) Disconnect the Connector of Main wireless LAN harness ASSY from the Wireless LAN PCB.
Page 292: Speaker Unit/Speaker Hold Spring
9.43 Speaker Unit/Speaker Hold Spring (1) Disconnect the Connector (CN10) and cables from the Main PCB ASSY. CN3 CN4 CN10 CN12 CN13 Main PCB ASSY CN15 CN17 CN11 CN22 CN25 CN27 CN23 CN24 CN26 CN30 Fig. 3-149 (2) Release the Hook to remove the Speaker hold spring from the Main body. Hook Speaker hold spring Main body...
Page 293 (3) Remove the Speaker unit from the Main body. Speaker unit Main body Fig. 3-151 Harness routing: Refer to “ Speaker” 3-112 Confidential...
Page 294: Joint Cover Base Assy
9.44 Joint Cover Base ASSY (1) Remove the seven Taptite cup S M3x8 screws from the Joint cover base ASSY. Taptite cup S M3x8 Taptite cup S M3x8 Taptite cup S M3x8 Main body <Front> Joint cover base ASSY Fig. 3-152 (2) Remove the two Taptite bind B M4x12 screws from the Joint cover base ASSY.
Page 295 (3) Release the ten Hooks to remove the Joint cover base ASSY from the Main body. Hook Hook Hook Joint cover base ASSY Hook Hook Main body <Front> Fig. 3-154 3-114 Confidential...
Page 296: Main Pcb Assy
9.45 Main PCB ASSY (1) Disconnect the eight Connectors (CN12, CN13, CN23, CN24, CN25, CN26, CN27, and CN30) and two Flat cables (CN15 and CN22) from the Main PCB ASSY. Note: - After disconnecting flat cable(s), check that each cable is not damaged at its end or shortcircuited.
Page 297: Engine Pcb Assy
9.46 Engine PCB ASSY (1) Disconnect the seventeen Connectors (CN3, CN5, CN8, CN9, CN10, CN11, CN12, CN13, CN14, CN16, CN17, CN18, CN19, CN20, CN21, CN22, and CN23) and four Flat cables (CN1, CN2, CN15, and CN25) from the Engine PCB ASSY. Note: - After disconnecting flat cable(s), check that each cable is not damaged at its end or shortcircuited.
Page 298: Laser Unit
9.47 Laser Unit (1) Remove the Main insulation sheet from the Top drive ASSY. Top drive ASSY Main insulation sheet <Left side> Fig. 3-159 (2) Remove the three Taptite cup S M3x6 SR screws to remove the Main shield plate from the Top drive ASSY.
Page 299 (3) Disconnect the Flat cable from the Develop FFC holder. (4) Release the two Hooks to remove the Develop FFC holder from the Upper cable rack. Develop FFC holder Hook Hook Upper cable rack <Left side> Fig. 3-161 (5) Disconnect cables from the Upper cable rack. (6) Release the four Hooks to remove the Upper cable rack from the Base frame unit.
Page 300 (7) Remove the two Taptite cup S M3x6 SR screws to remove the Top beam from the Base frame unit. Taptite cup S M3x6 SR Top beam Base frame unit <Front> Fig. 3-163 (8) Remove the five Taptite cup S M3x6 SR screws to remove the four Scanner holders. Taptite cup S Taptite cup S M3x6 SR M3x6 SR...
Page 301 (9) Disconnect the Connector (CN8) and two Flat cables from the Laser unit to remove the Laser unit from the Base frame unit. Note: - After disconnecting flat cable(s), check that each cable is not damaged at its end or shortcircuited.
Page 302: Develop Release Motor
9.48 Develop Release Motor (1) Remove the two Taptite bind S M3x6 screws. Top drive ASSY Taptite bind S M3x6 Develop release motor <Left side> Fig. 3-166 (2) Rotate the Develop release motor counterclockwise to release the Hook to remove the Develop release motor from the Top drive ASSY.
Page 303: Front Cover Sensor
9.49 Front Cover Sensor (1) Disconnect the wiring of the Front cover sensor from the Panel cable rack. (2) Release the two Hooks to remove the Front cover sensor. Hook Hook Front cover sensor Panel cable rack <Left side> Fig. 3-168 Harness routing: Refer to “...
Page 304: Top Drive Assy
9.50 Top Drive ASSY (1) Disconnect cables from the Lower cable rack. (2) Release the four Hooks to remove the Lower cable rack from the Top drive ASSY. <Left side> Hook Lower cable rack Hook Top drive ASSY Hook Fig. 3-169 (3) Disconnect cables from the PF line holder.
Page 305 (5) Disconnect cables from the Panel cable rack. (6) Remove the Taptite cup S M3x6 SR screw. (7) Release the four Hooks to remove the Panel cable rack from the Top drive ASSY. Top drive ASSY <Left side> Hook Panel cable rack Hook Hook Taptite cup S M3x6 SR...
Page 306 (9) Remove the nine Taptite cup S M3x6 SR screws and Taptite bind B M4x12 screw from the Top drive ASSY. Top drive ASSY Base frame unit Taptite cup S M3x6 SR Taptite bind B M4x12 FG wire under bar rear FG wire under bar rear Base frame unit Hook...
Page 307 (10) Remove the Develop forced release part from the Forced develop release cam. (11) Release the two Hooks to remove the Top drive ASSY from the Base frame unit. Forced develop release cam Base frame unit Hook Develop forced release part Hook Top drive ASSY <Left side>...
Page 308: Forced Develop Release Link
9.51 Forced Develop Release Link (1) Remove the Forced develop release link from the Forced develop release cam. Forced develop release link Forced develop release cam Forced develop release cam Forced develop release link <Left side> Fig. 3-175 3-127 Confidential...
Page 309: Drum Drive Motor
9.52 Drum Drive Motor (1) Remove the two Drum coupling gear Z52 from the Top drive ASSY. Drum coupling gear Z52 Drum coupling gear Z52 Top drive ASSY Fig. 3-176 Gear position: Refer to “ Top drive ASSY.” (2) Remove the two Drum idle gear Z64 from the Top drive ASSY. Drum idle gear Z64 Top drive ASSY Fig.
Page 310 (3) Remove the Collar 6 from the Drum idle gear Z64 first. Drum idle gear Z64 first Collar 6 Fig. 3-178 (4) Remove the Drum idle gear Z64 first from the Top drive ASSY. Drum idle gear Z64 first Top drive ASSY Fig.
Page 311 (5) Remove the three Screw bind M3x4 screws to remove the Drum drive motor from the Top drive ASSY. Screw bind M3x4 Top drive ASSY Drum drive motor Fig. 3-180 Assembling Note: Align the phase of the Drum idle gear Z64, Drum idle gear Z64 first, and Drum coupling gear Z52.
Page 312: Drum Position Sensor Pcb Assy
9.53 Drum Position Sensor PCB ASSY (1) Remove the Drum coupling gear Z52 from the Top drive ASSY. Drum coupling gear Z52 Top drive ASSY Drum coupling gear Z52 Fig. 3-181 Gear position: Refer to “ Top drive ASSY.” Note: Be sure to align the phase before removing the gear.
Page 313: Registration Solenoid Assy
9.54 Registration Solenoid ASSY (1) Disconnect the wiring of the Registration solenoid ASSY. (2) Remove the Taptite cup S M3x6 SR screw to remove the Registration solenoid ASSY and Registration solenoid spring from the Top drive ASSY. Taptite cup S M3x6 SR Registration solenoid spring Registration solenoid ASSY Top drive ASSY...
Page 314: Develop Release Sensor Pcb Assy/Mono Solenoid Assy
9.55 Develop Release Sensor PCB ASSY/Mono Solenoid ASSY (1) Remove the three Taptite cup S M3x6 SR screws to remove the Top drive cover from the Top drive ASSY. Taptite cup S M3x6 SR Taptite cup S M3x6 SR Top drive cover Top drive ASSY Fig.
Page 315 (4) Remove the Gear Z63-30 from the Top drive ASSY. Gear Z63-30 Top drive ASSY Fig. 3-186 Gear position: Refer to “ Top drive ASSY.” (5) Remove the Taptite cup S M3x6 SR screw to remove the Mono solenoid ASSY and Mono solenoid spring from the Top drive ASSY.
Page 316: Fuser Develop Motor Assy
9.56 Fuser Develop Motor ASSY (1) Remove the four Taptite cup S M3x6 SR screws to remove the Fuser develop motor ASSY from the Top drive ASSY. Taptite cup S M3x6 SR Taptite cup S M3x6 SR Fuser develop motor ASSY Top drive ASSY Fig.
Page 317: Pf Plate Assy/T1 Solenoid Assy
9.57 PF Plate ASSY/T1 Solenoid ASSY (1) Remove the three Taptite bind B M4x12 screws and Taptite cup S M3x6 SR screw. Remove the PF plate ASSY from the PF cleaner drive ASSY. Release the FG wire under bar. <Left side> PF cleaner drive ASSY PF cleaner drive ASSY FG wire...
Page 318 (2) Remove the two Taptite bind B M4x12 screws to remove the PF cleaner drive ASSY from the Base frame unit. PF cleaner drive ASSY Taptite bind B M4x12 <Left side> Base frame unit Taptite bind B M4x12 Fig. 3-190 Note: Some of the gears on the PF cleaner drive ASSY easily come off, and thus be careful not to lose them.
Page 319: Toner/New Sensor Pcb Assy
9.58 Toner/New Sensor PCB ASSY (1) Release the Hook to remove the TE sensor protect film from the Toner reset holder. Toner reset holder <Left side> Hook TE sensor protect film Fig. 3-192 (2) Release the six Hooks to remove the Toner/New sensor PCB ASSY from the Toner reset holder.
Page 320: Internal Temperature Thermistor
9.59 Internal Temperature Thermistor (1) Remove the Internal temperature thermistor from the Main body. Internal temperature thermistor Main body <Left side> Fig. 3-194 Assembling Note: - Insert the tip of the Internal temperature thermistor firmly into the Insertion hole until it reaches the end of the Hole.
Page 321: Fuser Fan
9.60 Fuser Fan (1) Disconnect the Connector (CN4) from the High-voltage power supply PCB ASSY. High-voltage power supply PCB ASSY Connector <Right side> Fuser fan Fig. 3-196 (2) Pull out the Fuser fan from the Paper eject ASSY by slightly rotating it in the arrow direction in the figure below.
Page 322 Assembling Note: When assembling the Fuser fan, be sure to assemble it in a way that the label side faces out. Paper eject ASSY Fuser fan Label <Right side> Fig. 3-198 3-141 Confidential...
Page 323: Paper Eject Assy
9.61 Paper Eject ASSY (1) Disconnect the wiring of the harness from the High-voltage power supply PCB ASSY. (2) Remove the five Taptite cup S M3x6 SR screws to remove the Paper eject ASSY from the Base frame unit. Taptite cup S M3x6 SR Paper eject ASSY Taptite cup S M3x6 SR Base frame unit...
Page 324: Filter Assy
9.62 Filter ASSY (1) Remove the Filter ASSY from the Paper eject ASSY. Paper eject ASSY Filter ASSY Fig. 3-200 3-143 Confidential...
Page 325: Paper Eject Motor
9.63 Paper Eject Motor (1) Remove the two Taptite bind S M3x6 screws to remove the Paper eject motor from the Paper eject ASSY. Paper eject ASSY Paper eject motor Taptite bind S M3x6 Fig. 3-201 Harness routing: Refer to “...
Page 326: Back Cover Sensor Assy
9.64 Back Cover Sensor ASSY (1) Release the two Hooks to remove the Back cover sensor ASSY from the Paper eject ASSY. Paper eject ASSY Hook Back cover sensor ASSY Hook Back cover sensor ASSY Fig. 3-202 Harness routing: Refer to “...
Page 327: Power Fan
9.65 Power Fan (1) Disconnect the Connector (CN5) from the High-voltage power supply PCB ASSY. Connector Power fan High-voltage power supply PCB ASSY <Right side> Fig. 3-203 (2) Remove the Power fan from the Base frame unit. <Right side> Power fan Base frame unit Label Fig.
Page 328 Assembling Note: When assembling the Power fan, be sure to assemble it in a way that the label side faces out. <Right side> Power fan Base frame unit Label Fig. 3-205 3-147 Confidential...
Page 329: Low-Voltage Power Supply Unit
9.66 Low-voltage Power Supply Unit (1) Remove the two Pins to remove the Back flapper ASSY from the Low-voltage power supply cover. Low-voltage power supply cover Back flapper ASSY <Back side> Fig. 3-206 (2) Release the two Hooks to remove the Switch holder from the Base frame unit. <Right side>...
Page 330 (3) Remove the Taptite flat B M3x10 screw to remove the AC inlet from the Low-voltage power supply unit. Low-voltage power supply unit <Right side> Taptite flat B M3x10 AC inlet Fig. 3-208 (4) Remove the screw "a" of the Screw pan (S/P washer) M4x8 from the Low-voltage power supply unit to remove the ground terminal <Right side>...
Page 331: Paper Eject Sensor Pcb Assy
(5) Remove the two Taptite cup S M3x8 screws and two Taptite cup B M3x12 screws to remove the Low-voltage power supply unit from the Base frame unit. Base frame unit Taptite cup S M3x8 Taptite cup B M3x12 Low-voltage power supply unit Taptite cup S M3x8 <Back side>...
Page 332: Low-Voltage Power Supply Pcb Assy/Power Switch Holder
9.68 Low-voltage Power Supply PCB ASSY/ Power Switch Holder (1) Disconnect the Harness from Hooks. (2) Remove the four Taptite pan (washer) B M4x12DA screws, one Screw pan (S/P washer) M4x8 screw, and the Low-voltage power supply ground plate, and then remove the Low-voltage power supply plate from the Low-voltage power supply cover.
Page 333 (4) Disconnect the Connector (CN2) from the Low-voltage power supply PCB ASSY. CN102 CN103 CN101 Low-voltage power supply PCB ASSY Fig. 3-214 (5) Release the two Hooks to remove the Power switch from the Power switch holder. Power switch holder Power switch Hook Hook...
Page 334 (6) Remove the four Screw cup M3x6 screws to remove the Low-voltage power supply PCB ASSY from the Low-voltage power supply plate. Taptite bind B M3x8 Taptite bind B M3x8 Low-voltage power supply plate Low-voltage power supply PCB ASSY Fig. 3-216 3-153 Confidential...
Page 335: Cleaner Pinch Roller Holder
9.69 Cleaner Pinch Roller Holder (1) Remove the two Pins and release the one Hook to remove the Front chute flapper and two Flapper springs from the Low-voltage power supply unit. Hook Flapper spring Front chute flapper Flapper spring Low-voltage power supply unit Fig.
Page 336 (3) Hold down the Cleaner spring of the Cleaner pinch roller holder to remove the Cleaner pinch roller ASSY. (4) Remove the other three Cleaner pinch roller ASSY in the same way. Cleaner pinch roller ASSY Cleaner spring Cleaner spring Cleaner pinch roller holder Fig.
Page 337: Registration Mark Sensor Holder Assy/Shutter Solenoid
9.70 Registration Mark Sensor Holder ASSY/ Shutter Solenoid (1) Disconnect the Connector (CN8) from the High-voltage power supply PCB ASSY. Shutter solenoid Connector High-voltage power supply PCB ASSY Fig. 3-220 (2) Remove the two Taptite bind B M3x10 screws to remove the Registration mark sensor holder ASSY from the Base frame unit.
Page 338 (3) Remove the Taptite bind B M3x10 screw to remove the Shutter solenoid from the Registration mark sensor holder ASSY. Taptite bind B M3x10 Shutter solenoid Registration mark sensor holder ASSY Fig. 3-222 Assembling Note: Be sure to firmly insert the tip of the Pin of the Shutter solenoid into "A" of the Registration sensor shutter.
Page 339: Mp Paper Empty/Registration Front Sensor Pcb Assy
9.71 MP Paper Empty/Registration Front Sensor PCB ASSY (1) Press "A" to release the Hook and then remove the MP upper frame cover from the MP upper cover ASSY. “A” MP upper frame cover Hook MP upper cover ASSY Fig. 3-224 (2) Remove the MP lift arm B from the MP upper cover ASSY.
Page 340 (3) Release the Hook to remove the MP holder bush from the MP upper cover ASSY. Hook MP holder bush MP upper cover ASSY Fig. 3-226 (4) Remove the MP roller holder ASSY from the MP upper cover ASSY. MP roller holder ASSY MP upper cover ASSY Fig.
Page 341 (5) Remove the Registration gear from the Base frame unit. Registration gear Base frame unit Fig. 3-228 Gear position: Refer to “ PF ASSY.” (6) Remove the Pinch roller drive gear from the Base frame unit. Pinch roller drive gear Base frame unit Fig.
Page 342 (7) Release the Hook to remove the Registration/Pinch roller gear bush from the Base frame unit. Registration/Pinch roller gear bush Hook Base frame unit Fig. 3-230 Gear position: Refer to “ PF ASSY.” (8) Remove the two Taptite bind B M3x8 screws. Slide the MP drive shaft as shown in the figure.
Page 343 (9) Release the five Hooks to remove the Sensor cover MP from the MP upper cover ASSY. MP upper cover ASSY Hook Hook Hook Sensor cover MP Fig. 3-232 (10) Release the two Hooks to remove the MP paper empty actuator A ASSY from the MP upper cover ASSY.
Page 344 (11) Release the Hook to remove the MP paper empty actuator B from the MP upper cover ASSY. MP upper cover ASSY Align here MP paper empty actuator B Hook Align here Fig. 3-234 (12) Release the Hook to remove the Separation R shaft bush from the MP drive shaft. Separation R shaft bush MP drive shaft Hook...
Page 345 (13) Remove the MP registration front actuator spring from the MP registration front actuator. MP registration front actuator spring MP registration front actuator MP upper cover ASSY Hook Fig. 3-236 (14) Take out the MP drive shaft, and then remove the MP registration actuator front from the MP upper cover ASSY.
Page 346 (15) Disconnect the wiring of the MP paper empty/registration front sensor PCB ASSY. (16) Remove the Taptite bind B M3x8 screw, and then remove the MP paper empty/ registration front sensor PCB ASSY from the MP upper cover ASSY. Taptite bind B M3x8 MP paper empty/registration front sensor PCB ASSY MP upper cover ASSY...
Page 347: Pf Assy
9.72 PF ASSY (1) Push the T1 lift arm to the back to remove “B” of the Roller holder ASSY from “A” of the T1 lift arm. Front Roller holder ASSY Paper feed unit Roller holder ASSY T1 lift arm “B”...
Page 348 Assembling Note: Align the Shaft of the roller holder ASSY to the hole of the Paper feed unit and insert it into the hole. Paper feed unit Paper feed unit Roller holder ASSY Shaft Hole Fig. 3-241 (4) Move the T1 lift arm in the direction of the arrow 4b as bending it in the direction of the arrow 4a to remove it from the Boss of the PF ASSY.
Page 349 (5) Remove the Shoulder screw from the PF ASSY. (6) Remove the two Taptite bind B M4x12 screws, then shift the PF ASSY to the right, and remove it from the Base frame unit. Base frame unit Shoulder screw PF ASSY Taptite bind B M4x12 Fig.
Page 350: T1 Registration Front/Rear Sensor Pcb Assy
9.73 T1 Registration Front/Rear Sensor PCB ASSY (1) Disconnect the wiring of the T1 registration front/rear sensor PCB ASSY. (2) Remove the Taptite bind B M3x10 screw to remove the T1 registration front/rear sensor PCB holder from the PF ASSY. Taptite bind B M3x10 T1 registration front/rear sensor PCB holder...
Page 351: Mp Sector Solenoid
9.74 MP Sector Solenoid (1) Disconnect the wiring of the MP sector solenoid. (2) Remove the Taptite bind B M3x8 screw. Remove the MP sector solenoid and Solenoid spring MP from the PF ASSY. PF ASSY Taptite bind B M3x8 Solenoid spring MP MP sector solenoid Fig.
Page 352: T1 Paper Edge Sensor Pcb Assy/T1 Paper Edge Actuator
9.75 T1 Paper Edge Sensor PCB ASSY/ T1 Paper Edge Actuator/ T1 Paper Edge Actuator Spring (1) Remove the three Taptite bind B M3x10 screws of the Pinch roller shaft sub ASSY from the MP drive frame. (2) Remove “A” of the Registration roller ground wire. (3) Remove the MP drive frame from the PF ASSY.
Page 353 (5) Remove the T1 paper edge actuator spring from the Hook of the PF ASSY and the Hook of the T1 paper edge actuator. Hook T1 paper edge actuator spring Hook PF ASSY T1 paper edge actuator Fig. 3-250 (6) Take out the T1 drive shaft gear Z17M07 from the PF ASSY, and then remove the T1 paper edge actuator.
Page 354: Cleaner Drive Gear 15
(7) Disconnect the wiring of the T1 paper edge sensor PCB ASSY. (8) Release the three Hooks to remove the T1 paper edge sensor PCB ASSY from the PF ASSY. T1 paper edge sensor PCB ASSY PF ASSY Hook Fig. 3-252 Harness routing: Refer to “...
Page 355: High-Voltage Power Supply Pcb Assy
9.77 High-voltage Power Supply PCB ASSY (1) Remove the High-voltage power supply protect film from the Base frame unit. High-voltage power supply protect film <Right side> Base frame unit Fig. 3-254 (2) Remove the four Spacers from the Base frame unit. Spacer Spacer Base frame unit...
Page 356 (3) Disconnect the two Connectors (CN1, CN2) from the High-voltage power supply PCB ASSY. High-voltage power supply PCB ASSY Fig. 3-256 (4) Remove the two Taptite cup S M3x6 SR screws. Taptite cup S M3x6 SR High-voltage power supply PCB ASSY Fig.
Page 357: High-Voltage Power Supply Pcb Assy
(5) Release the eight Hooks to remove the High-voltage power supply PCB ASSY from the Base frame unit. (6) Disconnect the two Connectors (CN6, CN7). Base frame unit High-voltage power supply PCB ASSY High-voltage power supply PCB ASSY Hook <Right side> Hook Hook Hook...
Page 358: Waste Toner Sensor
9.78 Waste Toner Sensor (1) Release the two Hooks to remove the Waste toner sensor cover from the Base frame unit. Waste toner sensor cover Hook Base frame unit Hook <Front> Fig. 3-260 (2) Release the three Hooks to remove the Waste toner sensor from the Base frame unit. Base frame unit Waste toner sensor Hook...
Page 359 (3) Disconnect the Connector from the Waste toner sensor. Connector Waste toner sensor Fig. 3-262 3-178 Confidential...
Page 360: Air Duct Cover/Blower
9.79 Air Duct Cover/Blower (1) Release the four Hooks to remove the Air duct cover from the Base frame unit. <Right side> Hook Hook Base frame unit Air duct cover Fig. 3-263 (2) Disconnect the wiring of the Blower. (3) Remove the Blower from the Base frame unit. <Right side>...
Page 361 Assembling Note: When assembling the Blower, be sure to assemble it in a way that the label side faces up. <Right side> Label Base frame unit Blower Fig. 3-265 3-180 Confidential...
Page 362: Disassembly Procedure (Lt-300Cl)
10. DISASSEMBLY PROCEDURE (LT-300CL) 10.1 T2 Paper Tray Unit (1) Take out the T2 paper tray unit from the main body. T2 paper tray unit Main body Fig. 3-266 (2) Release the two Hooks of the T2 separation pad ASSY to remove them in the upward direction.
Page 363 (3) Remove the T2 separation pad spring from the T2 separation pad ASSY. T2 separation pad ASSY T2 separation pad spring Fig. 3-268 3-182 Confidential...
Page 364: T2 Separation Roller Assy/Feed Roller Assy
10.2 T2 Separation Roller ASSY/Feed Roller ASSY (1) Release the Hook and slide the T2 separation roller ASSY in the direction of the arrow 1. (2) Remove the T2 separation roller ASSY in the direction of the arrow 2b as rotating it in the direction of the arrow 2a.
Page 365 (3) Release the Hooks to remove the Feed roller ASSY from the Paper feed shaft. T2 paper feed frame unit Feed roller ASSY Hook Paper feed shaft Fig. 3-271 3-184 Confidential...
Page 366: T2 Cover Rear
10.3 T2 Cover Rear (1) Remove the two Taptite cup S M3x10 SR screws from the T2 cover rear. Taptite cup S M3x10 SR T2 cover rear Taptite cup S M3x10 SR Fig. 3-272 (2) Remove the two Pins to remove the T2 cover rear from the Main body. T2 cover rear Main body Fig.
Page 367: T2 Cover Left
10.4 T2 Cover Left (1) Remove the two Taptite cup S M3x6 SR screws from the T2 cover left. T2 cover left Taptite cup S M3x6 SR Taptite cup S M3x6 SR Fig. 3-274 (2) Remove the one Pin, and then release the two Hooks at the top. (3) Release the two Hooks at the bottom to remove the T2 cover left from the T2 frame L unit.
Page 368: T2 Cover Right
10.5 T2 Cover Right (1) Remove the two Taptite cup S M3x6 SR screws from the T2 cover right. T2 cover right Taptite cup S M3x6 SR Taptite cup S M3x6 SR Fig. 3-276 (2) Remove the one Pin, and then release the two Hooks at the top. (3) Release the three Hooks at the bottom to remove the T2 cover right from the T2 frame L unit.
Page 369: T2 Relay Pcb Assy
10.6 T2 Relay PCB ASSY (1) Disconnect the all Connectors from the T2 relay PCB ASSY. (T2 paper edge sensor) (T2 plate-up detection sensor) (Not used) (T2 connector) T2 relay PCB ASSY (T2 solenoid) (T2 plate-up motor) Fig. 3-278 (2) Remove the Taptite cup S M3x6 SR screw to remove the T2 relay PCB ASSY from the T2 frame L unit.
Page 370: T2 Solenoid Assy
10.7 T2 Solenoid ASSY (1) Remove the Taptite cup S M3x6 SR screw to remove the T2 solenoid holder ASSY from the T2 frame L unit T2 solenoid holder ASSY T2 frame L unit Taptite cup S M3x6 SR Fig. 3-280 (2) Remove the Screw flanged M3x3.5 screw to remove the T2 solenoid ASSY and T2 solenoid spring MP from the T2 solenoid holder.
Page 371: Collar 6
10.8 Collar 6 (1) Remove the two pieces of the Collar 6 from the Fittings shaft. Collar 6 Fittings shaft Fig. 3-282 3-190 Confidential...
Page 372: T2 Paper Feed Frame Unit
10.9 T2 Paper Feed Frame Unit (1) Remove the Clutch spring from the Clutch arm ASSY. Clutch arm ASSY Clutch spring Clutch arm ASSY Fig. 3-283 (2) Release the Hook to remove the Gear 45/40 from the T2 frame L unit. Gear 45/40 T2 frame L unit Hook...
Page 373 (3) Remove the Collar 6 from the Clutch arm ASSY. Collar 6 Clutch arm ASSY Fig. 3-285 (4) Remove the Clutch arm ASSY from the T2 frame L unit. T2 frame L unit Clutch arm ASSY Fig. 3-286 3-192 Confidential...
Page 374 (5) Remove the five Taptite cup S M3x6 SR screws to remove the T2 beam F ASSY from the T2 frame L unit. Taptite cup S M3x6 SR Taptite cup S M3x6 SR Taptite cup S M3x6 SR T2 beam F ASSY T2 frame L unit Fig.
Page 375 (7) Remove the Retaining ring E3 from the F roller, and then remove the FR bush TR. F roller FR bush TR Retaining ring E3 Fig. 3-289 (8) Remove the Lift spring from the Hook of the Lift lever A. (9) Remove the F roller from the T2 frame L unit in the directions of the arrows 9a, 9b, and 9c in this order.
Page 376 Assembling Note: When assembling the F roller, be sure to assemble it in a way that the Rib of the T2 paper feed frame unit comes between "A" and "B" of the Lift lever B, and the lever of the T2 paper feed holder unit comes in front of "B". Lift lever B "B"...
Page 377 (11) Release the Hook to remove the Gear 33 from the T2 frame L unit. Gear 33 T2 frame L unit Hook Fig. 3-293 (12) Remove the Extension spring from the Spring hook. (13) Release the Hook to remove the Gear 46/55 from the T2 frame L unit. T2 frame L unit Hook Gear 46/55...
Page 378 (14) Remove the Gear 46 from the T2 frame L unit. T2 frame L unit Gear 46 Fig. 3-295 (15) Turn the T2 frame L unit upside down. (16) Remove the two Taptite cup S M3x6 SR screws from the T2 beam front. Taptite cup S M3x6 SR T2 beam front Fig.
Page 379 (17) Return the T2 frame L unit to the original position. (18) Remove the two Taptite cup S M3x6 SR screws from the T2 beam rear. T2 beam rear Taptite cup S M3x6 SR Fig. 3-297 (19) Remove the two Taptite cup S M3x6 SR screws from the T2 beam rear. T2 beam rear Taptite cup S M3x6 SR Fig.
Page 380 (20) Remove the Taptite bind B M4x10 screw and Bush. T2 frame L unit Taptite bind B M4x10 Bush Fig. 3-299 (21) Remove the T2 paper feed frame unit from the T2 frame L unit in the direction of the arrows 21a and 21b in this order.
Page 381 CHAPTER 4 ADJUSTMENTS AND UPDATING OF SETTINGS, REQUIRED AFTER PARTS REPLACEMENT Confidential...
Page 382: Required After Parts Replacement
CHAPTER 4 ADJUSTMENTS AND UPDATING OF SETTINGS, REQUIRED AFTER PARTS REPLACEMENT This chapter describes adjustments and updating of settings, which are required if the main PCB ASSY and some other parts have been replaced. This chapter also covers how to update the firmware. CONTENTS 1.
Page 383 4. IF YOU REPLACE THE LASER UNIT ............4-8 4.1 Sensitivity Adjustment of Density Sensor (Maintenance Mode: Code 72)....4-8 4.2 Performing the Developing Bias Voltage Correction (Maintenance Mode: Code 83) . 4-8 4.3 Performing the Adjustment of Inter-color Position Alignment (Maintenance Mode: Code 66) ...................
Page 384: If You Replace The Main Pcb Assy
(5) The download utility (FILEDG32.EXE) Copy it into the temporary folder that has been created in the C drive. (6) The Brother maintenance USB printer driver (Maintenance_Driver.zip) Copy it into the temporary folder that has been created in the C drive. Extract the copied file.
Page 385: Rewriting The Firmware (Sub Firmware, Main Firmware)
"Brother Maintenance USB Printer." (4) Drag and drop a program file that you want to rewrite (for instance, LZXXXX_$.upd) onto the Brother Maintenance USB Printer icon in the screen shown above. Note: After rewriting Sub firmware or Main firmware is completed, the machine returns to the ready state.
Page 386: Rewriting The Firmware Using Usb Flash Memory
1.1.3 Rewriting the firmware using USB flash memory If you save the program files in the USB flash memory drive and plug it into the USB direct interface, you can rewrite the firmware. Note: - You cannot write the firmware using USB flash memory in the Deep Sleep mode. Press the Start/Black button to clear the Deep Sleep mode before rewriting the firmware.
Page 387: Initialization Of Eeprom Of Main Pcb Assy (Maintenance Mode: Code 01)
Initialization of EEPROM of Main PCB ASSY (Maintenance Mode: Code 01) Initialize the EEPROM in accordance with "1.4.1 EEPROM parameter initialization" in Chapter Setting by Country (Maintenance Mode: Code 74) Make appropriate settings by country in accordance with "1.4.26 Setting by country" in Chapter Setting the Serial Number Note:...
Page 388: Sensitivity Adjustment Of Density Sensor (Maintenance Mode: Code 72)
Sensitivity Adjustment of Density Sensor (Maintenance Mode: Code 72) Make sensitivity adjustments of the density sensor in accordance with "1.4.25 Sensitivity adjustment of density sensor" in Chapter Performing the Developing Bias Voltage Correction (Maintenance Mode: Code 83) Perform developing bias voltage correction in accordance with "1.4.31 Developing bias voltage correction"...
Page 389: If You Replace The Registration Mark Sensor Holder Assy
IF YOU REPLACE THE REGISTRATION MARK SENSOR HOLDER ASSY <What to do when replacing the registration mark sensor holder ASSY> - Sensitivity adjustment of density sensor (Maintenance mode: code 72) - Performing the developing bias voltage correction (Maintenance mode: code 83) - Performing the adjustment of inter-color position alignment (Maintenance mode: code 66) Sensitivity Adjustment of Density Sensor (Maintenance Mode: Code 72)
Page 390: If You Replace The High-Voltage Power Supply Pcb Assy
IF YOU REPLACE THE HIGH-VOLTAGE POWER SUPPLY PCB ASSY <What to do when replacing the high-voltage power supply PCB ASSY> - Sensitivity adjustment of density sensor (Maintenance mode: code 72) - Performing the developing bias voltage correction (Maintenance mode: code 83) - Performing the adjustment of inter-color position alignment (Maintenance mode: code 66) Sensitivity Adjustment of Density Sensor (Maintenance Mode: Code 72)
Page 391: If You Replace The Laser Unit
IF YOU REPLACE THE LASER UNIT <What to do when replacing the laser unit> - Sensitivity adjustment of density sensor (Maintenance mode: code 72) - Performing the developing bias voltage correction (Maintenance mode: code 83) - Performing the adjustment of inter-color position alignment (Maintenance mode: code 66) Sensitivity Adjustment of Density Sensor (Maintenance Mode: Code 72) Make sensitivity adjustments of the density sensor in accordance with...
Page 392: If The Machine Error Ef Is Detected And The Low-Voltage Power Supply Pcb Assy Is Replaced
(2) Connect the PC to the machine with the USB cable. (3) Double-click the “FILEDG32.EXE” to start. The following screen appears. Select the “Brother Maintenance USB Printer”. (4) Click the “Brother Maintenance USB Printer” icon to select. Drag the SQWAVE.PJL and drop it. 5.1.2...
Page 393 (4) The About window appears. Double-click anywhere in the window as pressing the Shift key. (5) The Password window appears. Enter “replace” in the Password box, and then click the OK button. The Password window disappears. (6) Select “Input information” from Menu. (7) “Printer Information”...
Page 394: If You Replace The Drum Drive Motor
IF YOU REPLACE THE DRUM DRIVE MOTOR <What to do when replacing the drum drive motor> - Alignment of gear phase When replacing the drum drive motor, the gears listed below are removed. Align the phase of each gear in accordance with the table and figure given below when mounting these gears. <Gear names>...
Page 395 (2) When mounting LY0196001 Drum coupling gear Z52 of Nos. 4 to 7, mount them by aligning their phases as shown in the figure below. Align the phase of the mark Align the phase of the mark on the gear to the mark on on the gear to the mark on the sheet metal.
Page 396: If You Replace The Document Scanner Unit
IF YOU REPLACE THE DOCUMENT SCANNER UNIT <What to do when replacing the document scanner unit> - Acquisition of white level data (Maintenance mode: code 55) - Scanning and printing check - Placement of scanner unit in position for transportation (Maintenance mode: code 06) Acquisition of White Level Data (Maintenance Mode: Code 55) Perform the acquisition of white level data and scanner area setting in accordance with...
Page 397: Service Functions
CHAPTER 5 SERVICE FUNCTIONS Confidential...
Page 398 CHAPTER 5 SERVICE FUNCTIONS Describes the maintenance mode which is exclusively designed for the purpose of checking the settings and adjustments using the buttons on the control panel. This chapter also covers not-disclosed-to-users function menus, which activate settings and functions or reset the parts life.
Page 399 1.4.25 Sensitivity adjustment of density sensor (Function code 72)......5-52 1.4.26 Setting by country (Function code 74)............5-53 1.4.27 Sensitivity adjustment of registration mark sensor and check of belt unit surface (Function code 75)............... 5-55 1.4.28 Operational check of fans (Function code 78)..........5-57 1.4.29 Display of the machine history (log) (Function code 80) .......
Page 400: Maintenance Mode
MAINTENANCE MODE The maintenance mode is exclusively designed for the checking, setting and adjustments of the machine by using the buttons on the control panel. The EEPROM can be customized according to the destination of the machine. Moreover, the operational check of the LCD, operation panel board, and sensors, print test, display of the log information and error codes, and change of the worker switches (WSW) can be performed.
Page 401: List Of Maintenance-Mode Functions
List of Maintenance-mode Functions Function Function Refer to: code EEPROM parameter initialization 1.4.1 (5-3) Printout of scanning compensation data 1.4.2 (5-4) Placement of scanner unit in position for transportation 1.4.3 (5-10) ADF performance test 1.4.4 (5-10) Monochrome image quality test pattern 1.4.5 (5-11) Worker switch (WSW) setting 1.4.6 [1] (5-12)
Page 402: Detailed Description Of Maintenance-Mode Functions
Detailed Description of Maintenance-mode Functions 1.4.1 EEPROM parameter initialization (Function code 01, 91) <Function> This function initializes the setting values of the operation parameters, user switches, and worker switches (WSW) registered in the EEPROM. Entering function code 01 initializes almost all of the EEPROM areas, but entering 91 does not initialize some areas, as listed below.
Page 403: Printout Of Scanning Compensation Data (Function Code 05)
1.4.2 Printout of scanning compensation data (Function code 05) <Function> The machine prints out the white and black level data for scanning compensation. <Operating procedure> Note: - Be sure to execute this operating procedure not immediately after the power is turned ON, but after conducting the document scanning operation at least once in duplex scanning.
Page 404 ■ Black and white/color scanning (Second side) Note: In the case of the black and white scanning, the output data (B) and (R) are invalid. Black and white data graph by previous scanning pixel count LED CURRENT DATA 1 Byte LED pulse data 1(UP) (G) 2 Bytes LED pulse data 1(DOWN) (G)
Page 405 ■ Black and white scanning (First side) Fig. 5-1 Confidential...
Page 406 ■ Black and white scanning (Second side) Fig. 5-2 Confidential...
Page 407 ■ Color scanning (First side) Fig. 5-3 Confidential...
Page 408 ■ Color scanning (Second side) Fig. 5-4 Confidential...
Page 409: Placement Of Scanner Unit In Position For Transportation (Function Code 06)
1.4.3 Placement of scanner unit in position for transportation (Function code 06) <Function> This function is to move the scanner unit in position for transportation located at the left end. When you fix the machine and check its operation, you need to perform this function last before packing and shipping.
Page 410: Monochrome Image Quality Test Pattern (Function Code 09)
1.4.5 Monochrome image quality test pattern (Function code 09) <Function> This function allows you to print various monochrome test patterns and check the quality and if there is any image loss. <Operating procedure> (1) Press the 0 and 9 buttons in this order in the initial state of the maintenance mode. (2) Printing of the monochrome image quality test pattern (see the figure below) starts, and when printing is finished, the machine beeps for one second and returns to the initial state of the maintenance mode.
Page 411: Worker Switch (Wsw) Setting And Printout (Function Code 10, 11)
1.4.6 Worker switch (WSW) setting and printout (Function code 10, 11) [1] Worker switch setting (Function code 10) The machine incorporates the following worker switch functions which may be activated with the procedures using the buttons on the control panel. The worker switches have been set at the factory in conformity to the codes of each country.
Page 412 WSW No. Function WSW31 Function setting 9 WSW32 Function setting 10 WSW33 Function setting 11 WSW34 Function setting 12 WSW35 Function setting 13 WSW36 Function setting 14 WSW37 Function setting 15 WSW38 V.34 transmission settings WSW39 V.34 transmission speed WSW40 V.34 modem settings WSW41 ON-duration of the scanning light source...
Page 413: Operating Procedure
WSW No. Function WSW68 Reserved (Change of the setting is prohibited) WSW69 Reserved (Change of the setting is prohibited) WSW70 Reserved (Change of the setting is prohibited) WSW71 Reserved (Change of the setting is prohibited) WSW72 Reserved (Change of the setting is prohibited) WSW73 Reserved (Change of the setting is prohibited) WSW74...
Page 414 [2] Printout of worker switch data (Function code 11) <Function> The machine prints out the setting items of the worker switches and their contents specified. <Operating procedure> (1) Press the 1 button twice in the initial state of the maintenance mode. The "PRINTING"...
Page 415: Operational Check Of Lcd (Function Code 12)
1.4.7 Operational check of LCD (Function code 12) <Function> This function allows you to check whether the LCD on the control panel works normally. <Operating procedure> (1) Press the 1 and 2 buttons in this order in the initial state of the maintenance mode. The LCD shows.
Page 416: Operational Check Of Control Panel Button (Function Code 13)
Memo When the Stop/Exit button is pressed, the machine beeps for one second and returns to the initial state of the maintenance mode. ■ MFC-9460CDN/9465CDN/9560CDW Fig. 5-8 ■ DCP-9055CDN Fig. 5-9 5-17 Confidential...
Page 417 ■ MFC-9970CDW Fig. 5-10 ■ DCP-9270CDN Fig. 5-11 5-18 Confidential...
Page 418: Software Version Check (Function Code 25)
1.4.9 Software version check (Function code 25) <Function> This function allows you to check the management information of the software programs such as version information, check sum. <Operating procedure> (1) Press the 2 and 5 buttons in this order in the initial state of the maintenance mode. The machine displays each of items described below on the LCD.
Page 419: Operational Check Of Sensors (Function Code 32)
1.4.10 Operational check of sensors (Function code 32) <Function> This function allows you to check each of the sensors. <Operating procedure> (1) Press the 3 and 2 buttons in this order in the initial state of the maintenance mode. (2) The machine beeps 1,100 Hz and 400 Hz tones cyclically through the following volumes for testing the speaker.
Page 420 Sensing status (OK/NG of Sensors temperature/humidity) ° External temperature/humidity sensor C/NG External temperature/humidity sensor XX %/NG ° Internal temperature sensor C/NG ° Belt unit temperature sensor C/NG Sensors Sensing status (OK/NG) Document front sensor Without documents/With document Document first side rear sensor Without documents/With document ADF cover sensor Close/Open...
Page 421 Paper eject ASSY Registration mark sensor holder ASSY Back cover sensor ASSY Belt unit temperature Registration mark sensor PCB ASSY Low-voltage power supply unit Paper eject sensor Registration mark L PCB ASSY Internal temperature sensor T2 connector T2 paper feed frame unit T2 plate-up detection sensor T2 paper edge sensor...
Page 422 Document second side rear sensor Document front/ADF open sensor Document first side rear sensor Lower chute ASSY ADF cover sensor Document front sensor Fig. 5-16 5-23 Confidential...
Page 423: Lan Connection Status Display (Function Code 33)
1.4.11 LAN connection status display (Function code 33) <Function> This function allows you to check the status of the wired LAN connection. The display items are shown in the table below. LAN connection status Active 100B-FD 100BASE-T Full Duplex Active 100B-HD 100BASE-T Half Duplex Active 10B-FD 10BASE-T Full Duplex...
Page 424: Function Setting
1.4.12 PC print function (Function code 43) <Function> This function allows the machine change that the setting of each computer printing function indicated to the following function settings. <Operating procedure> (1) Press the 4 and 3 buttons in this order in the initial state of the maintenance mode. The "Manual Feed"...
Page 425 Initial Description Set value value AutoFF Switching of the auto form feed On/Off AutoFF Time Switching of the time-out period 1 to 99 (seconds) of the auto form feed FF Surpress Switching of the FF Suppress On/Off Auto LF Switching of the auto LF On/Off Auto CR Switching of the auto CR...
Page 426 Detail description Page Protection Configure the setting to protect the page memory, when recording in computer. Set in the PCL-Core. There is not the influence of the memory management problem of the MFC. Emulation Configure the setting for the Emulation. Change the setting of the Function Menu.
Page 427: Not-Disclosed-To-Users Functions (Function Code 45)
1.4.13 Not-disclosed-to-users functions (Function code 45) Regarding the not-disclosed-to-users functions, the function setting can be executed by a simple panel operation. ■ Changing return value of USB No. <Function> ® When the OS of the computer is Windows Vista , and the computer is connected to a device through USB 2.0 full speed, the OS might fail to get the serial No.
Page 428 ■ Switching Dither Pattern <Function> This function is to switch the dither pattern when printed letters and/or slanted lines are not smooth, and thin lines are rough or uneven. Description PS.DitherType=0 Dither Pattern 0 is selected. (A dither pattern which improves roughness of letters and slanted lines) (default) PS.DitherType=1 Dither Pattern 1 is selected.
Page 429 ■ Switching of timing to execute Auto Registration <Function> Relative displacement between Cyan, Magenta, Yellow, and Black is detected using the registration mark sensor, and the Auto Registration is executed at the timing when the displacement value exceeds the stipulated threshold value. This is a function to switch the threshold value which is used as the timing to execute Auto Registration.
Page 430 ■ Adjusting left-end print start position on second side in duplex printing <Function> This function is to adjust the left-end print start position on the second side in the left and right direction if it is displaced in duplex printing. The adjustable range is -100 to 750 (unit: 300 dpi) (The minus direction means the left direction.) <Operating procedure>...
Page 431: Eeprom Customizing (User-Accessible) (Function Code 52)
1.4.14 EEPROM customizing (User-accessible) (Function code 52) <Function> This function allows users to customize the EEPROM settings such as language, function settings or worker switch settings. Note: This function is applicable to France and surrounding countries, Pan-Nordic, East Europe, Oceania and Iberia areas only. <Operating procedure>...
Page 432: Received Data Transfer Function (Function Code 53) (Fax Model Only)
1.4.15 Received data transfer function (Function code 53) (FAX model only) <Function> This function transfers received FAX data to another machine. It is useful when the machine cannot print received data due to the printing mechanism being defective. Note: - This function transfers received FAX file to another machine. It is useful when the machine cannot print received FAX file due to the printing mechanism being defective.
Page 433 ■ Cover page sample Fig. 5-17 ■ End page sample Fig. 5-18 5-34 Confidential...
Page 434: Fine Adjustment Of Scan Start/End Positions (Function Code 54)
1.4.16 Fine adjustment of scan start/end positions (Function code 54) <Function> This function allows you to adjust the scan start/end positions on the ADF and FB unit. ■ Simplex scanning model <Operating procedure> (1) Press the 5 and 4 buttons in this order in the initial state of the maintenance mode. The "SCAN START ADJ."...
Page 435 ■ Duplex scanning model <Operating procedure> (1) Press the 5 and 4 buttons in this order in the initial state of the maintenance mode. The "SCAN START ADJ." will appear on the LCD. (2) The " : ADF : FB" will appear after two seconds. Select one of them that you want to adjust the start position.
Page 436: Acquisition Of White Level Data (Function Code 55)
1.4.17 Acquisition of white level data (Function code 55) <Function> This function allows you to acquire the white level of the scanner unit and save it to the EEPROM of the main PCB. <Operating procedure> (1) Press the 5 button twice in the initial state of the maintenance mode. (2) The "Press START"...
Page 437: Adjustment Of Touch Panel (Function Code 61)
The adjustment procedure requires a stylus with a thin tip. A commercially available stylus designed for electronic dictionaries or personal digital assistance (PDA) can be used. If you do not have it on hand, order the "STYLUS" from the Brother's parts list. <Operating procedure>...
Page 438: Adjustment Of Inter-Color Position Alignment (Function Code 66)
1.4.19 Adjustment of inter-color position alignment (Function code 66) <Function> This function allows a service man to forcibly activate the inter-color position alignment adjustment function, which is usually executed automatically in a specified condition. If adjustment of inter-color position alignment (auto) fails because toner reaches its life, etc., you can adjust inter-color position alignment manually.
Page 439 <Operating procedure after adjustment inter-color position alignment (auto) fails> 1) Press the 6 button twice in the initial state of the maintenance mode. "REGISTRATION" is displayed on the LCD. Load paper on the tray. 2) Press the button to display "PRINT CHART" on the LCD, and then press the OK button.
Page 440 ■ Inter-color position alignment adjustment chart Fig. 5-22 5-41 Confidential...
Page 441 ■ Reset of inter-color position alignment adjustment (manual) If adjustment of inter-color position alignment (both auto and manual) cannot be executed because an incorrect value is inputted in adjustment of inter-color position alignment (manual), etc., you can clear the input value for adjustment of inter-color position alignment (manual). <Operating procedure>...
Page 442: Continuous Print Test (Function Code 67)
1.4.20 Continuous print test (Function code 67) <Function> This function allows you to conduct the pick-up and delivery test as printing patterns. <Operating procedure> (1) Press the 6 and 7 buttons in this order in the initial state of the maintenance mode. (2) When "SELECT: K 100%"...
Page 443 (4) When "SELECT: TRAY1" is displayed on the LCD, press the button to select the print format, and press the OK button. The available print formats are shown below. SELECT: TRAY1 SELECT: TRAY2 SELECT: MP SELECT: TRAY1 DX SELECT: TRAY2 DX SELECT: MP (5) The "PAPER FEED TEST"...
Page 444 ■ Continuous print pattern SELECT: K 100% SELECT: C 100% SELECT: M 100% SELECT: Y 100% SELECT: R 100% SELECT: G 100% SELECT: B 100% SELECT: KCMY1% SELECT: KCMY5% SELECT: Lattice Fig. 5-23 5-45 Confidential...
Page 445: Laser Unit Test Pattern Print (Function Code 68)
1.4.21 Laser unit test pattern print (Function code 68) <Function> This function allows you to print the laser unit test patterns and check if there is any failure in the laser unit. <Operating procedure> (1) Press the 6 and 8 buttons in this order in the initial state of the maintenance mode. "PRINTING"...
Page 446: Frame Pattern Print (One-Sided) (Function Code 69)
1.4.22 Frame pattern print (One-sided) (Function code 69) <Function> This function allows you to print one page of the frame pattern of the external circumference in one-sided printing and check if there is any deviation or omission of print. <Operating procedure> (1) Load Letter-size paper on the paper tray.
Page 447 Fig. 5-25 5-48 Confidential...
Page 448: Frame Pattern Print (Two-Sided) (Function Code 70)
1.4.23 Frame pattern print (Two-sided) (Function code 70) <Function> This function allows you to print one page of the frame pattern of the external circumference in two-sided printing and check if there is any deviation or omission of print. <Operating procedure> (1) Load Letter-size paper on the paper tray.
Page 449 1.4.24 Color test pattern (Function code 71) <Function> This function allows you to print the pattern of each color and check if there is any smear on or failure in the belt unit, develop roller, and exposure drum, etc. <Operating procedure> (1) Press the 7 and 1 buttons in this order in the initial state of the maintenance mode.
Page 450: Color Test Pattern (Function Code 71)
■ Color test pattern YCMK_ _A MCYK Fig. 5-27 5-51 Confidential...
Page 451: Sensitivity Adjustment Of Density Sensor (Function Code 72)
1.4.25 Sensitivity adjustment of density sensor (Function code 72) <Function> This function allows you to print the patch data for density sensor sensitivity adjustment on the belt unit and measure the density with the density sensor. The characteristics of the density sensor are calculated based on the value measured by the density sensor, and the parameter is adjusted upon color density adjustment.
Page 452: Setting By Country (Function Code 74)
1.4.26 Setting by country (Function code 74) <Function> This function allows you to customize the machine according to language, function settings, and worker switch settings. Note: When you replace the main PCB ASSY and rewrite the firmware forcibly, be sure to carry out this procedure.
Page 453 0140 China 0020 0220 * Country codes are subject to change without notice. Note: The information in this page is as of August 2010. For information on the latest code settings, see the ROM/firmware information provided by Brother. 5-54 Confidential...
Page 454: Sensitivity Adjustment Of Registration Mark Sensor And Check Of Belt Unit Surface (Function Code 75)
1.4.27 Sensitivity adjustment of registration mark sensor and check of belt unit surface (Function code 75) <Function> This function makes the registration mark sensor to adjust its sensitivity compulsory. This allows you to check if the registration mark sensor works properly. This function makes the machine to check the surface of the belt unit by using the registration mark sensor as well.
Page 455 ■ Error display when "REGI ADJ-BELTOFF" is executed Error message Description Solution REGI_ADJ:NG Registration mark Execute the adjustment of inter-color position sensor failure alignment (manual).(Refer to "Adjustment of inter-color position alignment (Function code 66)" in this chapter.) Replace the belt unit. Replace the engine PCB ASSY.
Page 456: Operational Check Of Fans (Function Code 78)
1.4.28 Operational check of fans (Function code 78) <Function> This function is to check whether each of fans is operating correctly or not. The operation of the following fan is checked respectively, and their operating states (rotation speed 100 %, rotation speed 50 %, or OFF) are displayed.
Page 457: Display Of The Machine History (Log) (Function Code 80)
1.4.29 Display of the machine history (log) (Function code 80) <Function> This function allows you to view the machine’s history (log). The display items are shown in the table below. Description Serial USB: Serial number MAC: MAC Address (Ethernet Address) Address PCB Serial PCB:...
Page 458 Description YTN_PG1: Number of printed pages by yellow toner YTN_PG2: Number of printed pages before previous reset of yellow toner YTN_ERM: Remaining toner amount of yellow toner (the calculated value in dots) YTN_RRM: Remaining toner amount of yellow toner (the remaining amount based on the number of rotations of the developer roller) YTN_CH: * Number of times the yellow toner has been replaced/...
Page 459 Description FUSR_PG: Printed pages by fuser unit Other FUSR_CH: Number of times the fuser unit has been replaced replacing part related LASR_PG: Printed pages by laser unit items LASR_CH: Number of times the laser unit has been replaced CCVRGUSI: Average cyan coverage % (Toner in use) CCVRGACC: Average cyan coverage % (Accumulated) MCVRGUSI:...
Page 460 Description PLTNRE: Printed pages of plain, thin, and recycled paper TKTRBD: Printed pages of thick, thicker, and bond paper ENVTYP: Printed pages of envelope, envelope thick, and Print pages envelope thin by paper type HAGAKI: Printed pages of Hagaki LABEL: Printed pages of label GLOSSY: Number of prints of glossy paper...
Page 461: Error Code Indication (Function Code 82)
Description MACHINEERR_##: * Error history ## to be displayed to the user: Error code/Occurrence page counter COMERR##: Last communication error code Error log related ENGERR##: Engine error history ##: Error level (2 bytes), large ****** items classification code (2 bytes), detailed classification code (2 bytes) DEVSTATUS__##: * Log for design analysis/Occurrence page counter...
Page 462: Developing Bias Voltage Correction (Function Code 83)
1.4.31 Developing bias voltage correction (Function code 83) <Function> This function performs developing bias voltage correction to fix the density of each color toner when printed color is not correct. Note: Before this function is performed, there is a need that the "Sensitivity adjustment of density sensor (Function mode 72)"...
Page 463: Function Code
1.4.32 Sending communication error list (Function code 87) <Function> This function is to send the error list to a service man at a remote location when a FAX communication error occurs on a user's machine. Reception of the error list enables a service man to analyze the problem occurring on a user's machine.
Page 464: Exit From The Maintenance Mode (Function Code 99)
1.4.34 Exit from the maintenance mode (Function code 99) <Function> This function allows you to exit from the maintenance mode. If the error related to the fuser unit occurs, the error is cleared. (Refer to "2.4 How to Recover from Errors of the Fuser Unit" in this chapter.) <Operating procedure>...
Page 465: Other Service Functions
OTHER SERVICE FUNCTIONS Developer Roller Counter Reset Function This function is to manually perform the operation same as the one when a toner cartridge is replaced with a new one. The purpose of this function is to provide a means to resolve an error when a new toner cannot be recognized by the machine, and the toner life display fails to be cleared.
Page 466: Parts Life Reset Function
Parts Life Reset Function This function is used to reset the relevant part counter when the user replaced a periodical replacement part with the correct procedure, and also used to forcibly reset the relevant part counter when an error cannot be resolved because the user did not replace a consumable part with the correct procedure.
Page 467: Deletion Of User Setting Information, Etc
Deletion of User Setting Information, etc. In this machine, the user setting information is stored in the EEPROM and flash memory of the main PCB ASSY. You can delete all the data listed below at a time with the procedure given below.
Page 468: How To Recover From Errors Of The Fuser Unit
How to Recover from Errors of the Fuser Unit How to recover from errors of the fuser unit is to use Function code 99 in the maintenance mode. <Operating procedure> (1) Press the Menu button and then the Start/Black button while the machine is in the ready state.
Page 469: Deep Sleep Function
Deep Sleep Function In addition to the sleep function with the normal specifications, the deep sleep function is prepared to reduce the power consumption. The deep sleep function is used to stop the operation of the following functions whereas they are available in the normal sleep mode.
Page 470 CHAPTER 6 CIRCUIT DIAGRAMS & WIRING DIAGRAM Confidential...
Page 471 CHAPTER 6 CIRCUIT DIAGRAMS & WIRING DIAGRAM This chapter provides the circuit diagrams and wiring diagram for the connections of the PCBs. CONTENTS 1. CIRCUIT DIAGRAMS.................6-1 2. WIRING DIAGRAM ..................6-6 Confidential...
Page 472: Circuit Diagrams
CIRCUIT DIAGRAMS ■ High-voltage Power Supply PCB Circuit Diagram (1/3) Confidential...
Page 473 ■ High-voltage Power Supply PCB Circuit Diagram (2/3) Confidential...
Page 474 ■ High-voltage Power Supply PCB Circuit Diagram (3/3) Confidential...
Page 475 ■ Low-voltage Power Supply PCB Circuit Diagram (100V) Confidential...
Page 476 ■ Low-voltage Power Supply PCB Circuit Diagram (200V) Confidential...
Page 477 ■ NCU PCB Circuit Diagram: U.S.A/Canada Confidential...
Page 478 ■ NCU PCB Circuit Diagram: Europe/Oceania Confidential...
Page 479 ■ NCU PCB Circuit Diagram: China/Asia/South Africa/Gulf Confidential...
Page 480: Wiring Diagram
WIRING DIAGRAM ■ Wiring Diagram CN22 ENGIN CN25 BELT UNIT TEMPERATUER SENSOR CN30 INTERNAL TEMPERATUER SENSOR CN12 DRUM DRIVE MOTOR BACK COVER SENSOR CN27 REGISTRATION MARK L PCB CN26 REGISTRATION MARK R PCB CN15 LDPCB PF DRIVE MOTOR CN17 T1 PAPER PIC-UP SOLENOID MP PAPER...
Page 481: Periodical Maintenance
CHAPTER 7 PERIODICAL MAINTENANCE Confidential...
Page 482 CHAPTER 7 PERIODICAL MAINTENANCE This chapter details consumable parts and periodical replacement parts. This chapter also covers procedures for disassembling and assembling periodical replacement parts. CONTENTS 1. PRECAUTIONS..................7-1 2. PERIODICAL REPLACEMENT PARTS ............7-2 2.1 Procedures to Replace Periodical Replacement Parts..........7-2 2.1.1 Fuser unit......................
Page 483: Precautions
PRECAUTIONS To avoid creating secondary problems by mishandling, follow the warnings below during maintenance work. WARNING - Always turn off the power switch and unplug the power cord from the power outlet before accessing any parts inside the machine. - When opening the front cover or back cover to access any parts inside the machine, never touch the shaded parts shown in the following figures.
Page 484: Periodical Replacement Parts
PERIODICAL REPLACEMENT PARTS Procedures to Replace Periodical Replacement Parts ■ Preparation Prior to proceeding with the disassembly procedure, (1) Unplug - the AC cord, - the USB cable, if connected, - the LAN cable, if connected, and - USB flash memory drive, if connected. (2) Remove - the Paper tray, - the Toner cartridge,...
Page 485: Fuser Unit
2.1.1 Fuser unit (1) Open the Back cover. Main body Back cover <Back side> Fig. 7-1 (2) Remove the Back cover stopper arm L and R from the Main body. Main body Back cover stopper arm L Back cover stopper arm L Back cover stopper arm R <Back side>...
Page 486 (3) Remove the Shaft of the Back cover from the Bush on the right side of the Main body. Main body Bush Shaft Back cover Fig. 7-3 (4) Remove the Back cover. Main body Back cove <Back side> Fig. 7-4 Confidential...
Page 487 (5) Open the Back flapper ASSY. Main body Back flapper ASSY <Back side> Fig. 7-5 (6) Release of the Fuser cover lock lever L and R and open the Fuser cover. Main body Fuser cover lock lever L Fuser cover user cover lock lever R <Back side>...
Page 488 (7) Remove the Taptite bind S M3x8 screw from the Fuser cover L. (8) Release the Hook to remove the Fuser cover L from the Main body. Main body Fuser cover L Taptite bind S M3x8 Hook <Back side> Fig. 7-7 (9) Slide the Outer chute ASSY in the direction of the arrow 9a to remove it to the front.
Page 489 (10) Remove the Taptite bind S M3x8 screw from the Fuser cover R. (11) Release the Hook to remove the Fuser cover R from the Main body. Hook Main body Fuser cover R Taptite bind S M3x8 <Back side> Fig. 7-9 (12) Disconnect the two Connectors (CN1, CN2) from the Paper eject sensor PCB ASSY.
Page 490 (13) Disconnect the Electrode terminal from the Fuser unit. Electrode terminal (small) Fuser unit Electrode terminal (large) Fig. 7-11 (14) Remove the two Taptite pan B M4x14 screws to remove the Fuser unit from the Main body. Main body Taptite pan B M4x14 Fuser unit <Back side>...
Page 491 (15) Remove the Filter ASSY from the Paper eject ASSY. Paper eject ASSY <Back side> Paper eject ASSY Filter ASSY Fig. 7-13 (16) Hold down the Cleaner spring of the Cleaner pinch roller holder to remove the Cleaner pinch roller ASSY. (17) Remove the other three Cleaner pinch roller ASSY in the same way.
Page 492 Note: - Do not apply a physical impact or vibration to the Fuser unit. - Do not touch the roller and electrodes as shown in the figure below to prevent breakage of the Fuser unit. Fuser unit Fig. 7-15 (18) After replacing the Fuser unit, reset the counter. (Refer to “2.2 Parts Life Reset Function”...
Page 493: Laser Unit
2.1.2 Laser unit (1) Open the Back cover. Main body Back cover <Back side> Fig. 7-16 (2) Remove the Back cover stopper arm L and R from the Main body. Main body Back cover stopper arm L Back cover stopper arm L Back cover stopper arm R <Back side>...
Page 494 (3) Remove the Shaft of the Back cover from the Bush on the right side of the Main body. Main body Bush Shaft Back cover Fig. 7-18 (4) Remove the Back cover. Main body Back cover <Back side> Fig. 7-19 7-12 Confidential...
Page 495 (5) Open the Back flapper ASSY. Main body Back flapper ASSY <Back side> Fig. 7-20 (6) Open the Front cover. Main body Front cover <Front> Fig. 7-21 7-13 Confidential...
Page 496 (7) Remove the Taptite bind S M3x8 screw from the front of the Side cover L. (8) Remove the Taptite bind B M4x12 screw from the side of the Side cover L. Taptite bind S M3x8 Taptite bind B M4x12 <Front>...
Page 497 (10) Release the Hooks 1 and 2 at the same time, and then release the Hooks 3 to 6 in numerical order. Release the Hook 7. Release the Hooks 8 and 9 to remove the Side cover L from the Main body. Hook 9 Hook 6 Main body...
Page 498 (11) Remove the Taptite bind S M3x8 screw from the front of the Side cover R ASSY. (12) Remove the Taptite bind B M4x12 screw from the side of the Side cover R ASSY. Side cover R ASSY Taptite bind S M3x8 Taptite bind B M4x12 <Front>...
Page 499 (14) Release the Hooks 1 and 2 at the same time, and then release the Hooks 3 to 6 in numerical order. Release the Hook 7. Release the Hooks 8 and 9 to remove the Side cover R ASSY from the Main body. Hook 9 Hook 6 Main body...
Page 500 (15) Remove the Ferrite core 1 from the FFC film. Ferrite core 1 FFC film FFC film Document scanner unit harness Ferrite core 1 Main shield cover plate ASSY Fig. 7-30 (16) Remove the seven Taptite cup S M3x6 SR screws to remove the Main shield cover plate ASSY from the Main body.
Page 501 (17) Remove one Taptite cup S M3x6 SR screw each for the FB FG harness ASSY and ADF FG harness ASSY to remove them from the Main body. FB FG harness ASSY ADF FG harness ASSY Taptite cup S M3x6 SR Main body Taptite cup S M3x6 SR Fig.
Page 502 (19) Release the Hooks of the Pull arm L and Pull arm R from the joint of the Scanner unit. Hook Scanner unit Hook Pull arm R Pull arm L <Front> Fig. 7-34 (20) Remove the Pull arm L and Pull arm spring from the Pull arm guide L. (21) Remove the Pull arm R and Pull arm spring from the Pull arm guide R.
Page 503 (22) Open the Scanner unit. Remove the Ferrite core 1 from the Digital CIS harness. Scanner unit Digital CIS harness Main body Ferrite core 1 Digital CIS Ferrite core 1 harness Fig. 7-36 (23) Remove the Digital CIS harness and Second side CIS harness from the Ferrite core 2 and 3 attached to the Film.
Page 504 (24) Remove the Harness from the Hook to take it out from the Hole in the Joint cover top. (25) Take out the FB FG harness ASSY and ADF FG harness ASSY from the Hole in the Joint cover top. Hole ADF FG harness ASSY FB FG...
Page 505 (27) Remove the eight Taptite bind B M4x12 screws from the Joint cover top. Taptite bind B M4x12 Taptite bind B M4x12 Taptite bind B M4x12 Joint cover top Taptite bind B M4x12 <Front> Fig. 7-40 (28) Release the eight Hooks to remove the Joint cover top from the Main body. Hook Joint cover top Hook...
Page 506 (29) Remove the Screw pan (S/P washer) M3.5x6 screw to remove the NCU FG harness ASSY from the Main body. (30) Disconnect the wiring from the Main PCB ASSY. Main body NCU FG harness ASSY Screw pan (S/P washer) M3.5x6 Main PCB ASSY Fig.
Page 507 (32) Remove the four Taptite cup S M3x6 SR screws to remove the Main PCB ASSY from the Top drive ASSY. Top drive ASSY Taptite cup S M3x6 SR Taptite cup S M3x6 SR Main PCB ASSY Taptite cup S M3x6 SR <Left side>...
Page 508 (34) Remove the four Taptite bind B M4x12 screws from the Back cover upper. (35) Release the two Hooks to remove the Back cover upper from the Main body. Taptite bind B M4x12 Taptite bind B M4x12 Hook Back cover upper Main body Hook Fig.
Page 509 (37) Remove the two Taptite bind B M4x12 screws from the Joint cover base ASSY. Joint cover base ASSY Taptite bind B M4x12 Taptite bind B M4x12 Main body <Back side> Fig. 7-48 (38) Release the ten Hooks to remove the Joint cover base ASSY from the Main body. Hook Hook Hook...
Page 510 (39) Remove the three Taptite cup S M3x6 SR screws to remove the Main shield plate from the Top drive ASSY. Top drive ASSY Main shield plate Taptite cup S M3x6 SR Hook Fig. 7-50 (40) Disconnect the Flat cable from the Develop FFC holder. (41) Release the two Hooks to remove the Develop FFC holder from the Upper cable rack.
Page 511 (42) Disconnect cables from the Upper cable rack. (43) Release the four Hooks to remove the Upper cable rack from the Base frame unit. Upper cable rack Hook Hook <Left side> Base frame unit Fig. 7-52 (44) Remove the two Taptite cup S M3x6 SR screws to remove the Top beam from the Base frame unit.
Page 512 (45) Remove the five Taptite cup S M3x6 SR screws to remove the four Scanner holders. Taptite cup S M3x6 SR Taptite cup S M3x6 SR Scanner holder Scanner holder Taptite cup S M3x6 SR Scanner holder Taptite cup S M3x6 SR Taptite cup S M3x6 SR Scanner holder Scanner holder...
Page 513 (46) Remove the Connector (CN8) and two Flat cables from the Laser unit to remove the Laser unit from the Base frame unit. Laser unit Base frame unit Flat cable Connector <Front> Flat cable Fig. 7-55 Assembling Note: When connecting flat cable(s), do not insert them at an angle. After insertion, check that the cable are not at an angle.
Page 514: Paper Feeding Kit1
2.1.3 Paper feeding kit1 (1) Release the Hook to remove the Separation pad holder ASSY from the Paper tray. Separation pad holder ASSY “A” Paper tray “B” Hook Fig. 7-56 Assembling Note: Mount the Separation pad holder ASSY in a way that “A” of the Separation pad holder ASSY is inserted into “B”...
Page 515 (2) Remove the Separation pad spring from the Paper tray. Note: Be careful not to lose the Separation pad spring. Separation pad spring Paper tray Fig. 7-57 (3) Push the T1 lift arm to the back to remove “B” of the Roller holder ASSY from “A” of the T1 lift arm.
Page 516 (4) Slide the Roller holder ASSY in the direction of the arrow 4 to remove it from the “C” of the Paper feed unit. (5) Slide the Roller holder ASSY in the direction of the arrow 5a and 5b in this order to remove it.
Page 517: Paper Feeding Kit2
2.1.4 Paper feeding kit2 (1) Release the two Hooks of the T2 separation pad ASSY to remove them in the upward direction. Note: Be careful not to lose the T2 separation pad spring. T2 separation pad ASSY Hook Hook T2 paper tray unit Fig.
Page 518 (3) Release the Hook and slide the T2 separation roller ASSY in the direction of the arrow 3. (4) Remove the T2 separation roller ASSY in the direction of the arrow 4b as rotating it in the direction of the arrow 4a. T2 separation roller ASSY T2 separation roller ASSY Hook...
Page 519 (5) Release the Hooks to remove the Feed roller ASSY from the Paper feed shaft. T2 paper feed frame unit Feed roller ASSY Hook Paper feed shaft Fig. 7-65 (6) After replacing the Paper feeding kit, reset the counter. (Refer to “2.2 Parts Life Reset Function”...
Page 520: Mp Paper Feeding Kit
2.1.5 MP paper feeding kit (1) Press “A” to release the Hook and then remove the MP upper frame cover from the MP upper cover ASSY. “A” MP upper frame cover Hook MP upper cover ASSY Fig. 7-66 (2) Remove the MP lift arm B from the MP upper cover ASSY. MP lift arm B MP upper cover ASSY Fig.
Page 521 (3) Release the Hook to remove the MP holder bush from the MP upper cover. Hook MP holder bush MP upper cover ASSY Fig. 7-68 (4) Remove the MP roller holder ASSY from the MP upper cover ASSY. MP roller holder ASSY MP upper cover ASSY Fig.
Page 522 (5) Turn the MP separation pad ASSY upright to remove it from the MP unit. MP separation pad ASSY MP unit MP separation pad ASSY Fig. 7-70 (6) Remove the MP separation pad spring from the two Pins of MP unit. MP separation pad spring MP unit Fig.
Page 523 APPENDIX 1. SERIAL NUMBERING SYSTEM Confidential...
Page 524: Appendix 1 Serial Numbering System
APPENDIX 1 SERIAL NUMBERING SYSTEM ■ Serial number labels for the machine itself Serial number A 0 J 1 1 1 1 0 1 Model number Serial number (6-digit) Manufacturing factory No. Year of manufacture 0: 2010 1: 2011 Month of manufacture A: January E: May J: September...
Page 525 APPENDIX 2. DELETION OF USER SETTING INFORMATION, ETC. This appendix provides instructions on how to delete user setting information etc. recorded in the machine. Confidential...
Page 526 APPENDIX 2 DELETION OF USER SETTING INFORMATION, ETC. In this machine, the user setting information is stored in the EEPROM and flash memory of the main PCB. You can delete all the data listed below at a time with the procedure given below. - Information related to Net - User setting information <Operating Procedure>...
Page 527 APPENDIX 3. INSTALLING THE MAINTENANCE DRIVER Confidential...
Page 528 APPENDIX 3 INSTALLING THE MAINTENANCE DRIVER To identify multiple machines connected to the computer via USB, the computer needs to configure the corresponding number of virtual USB devices by a driver or software. If you connect a multiple number of machines to your computer, the same number of virtual USB devices will be automatically configured on your computer.
Page 529 (5) Alert warning message appears three times, click Continue Anyway to proceed. (6) If the device driver is successfully installed, the following message screen appears. Click Finish to return. App.3-2 Confidential...
Page 530 (7) Connect the machine to your computer using the USB cable. (8) The following screen appears, indicating the detection of new hardware device by the system. Select “No, not this time” and click Next. (9) Select “Install the software automatically (Recommended)” and click Next. App.3-3 Confidential...
Page 531 (10) Alert warning message appears, click Continue Anyway to proceed. App.3-4 Confidential...
Page 532 (11) If the Brother maintenance USB printer driver is successfully installed, the following message screen appears. Click Finish to return. (12) Repeat the steps from (9) to (11) three times, and then complete its installation. (13) Disconnect the USB cable.

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Brother DCP-9055CDN Service Manual

Table of Contents

Chapter 1 Specifications

Chapter 2 Error Indication and Troubleshooting

Chapter 3 Disassembly and Assembly

Chapter 3 Disassembly and Assembly

Chapter 4 Adjustments and Updating of Settings, Required after Parts Replacement

CHAPTER 5 Service Functions

Chapter 5 Service Functions

Chapter 6 Circuit Diagrams & Wiring Diagram

Appendix 1 Serial Numbering System

Quick Links

SERVICE MANUAL

Chapters

Troubleshooting

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Summary of Contents for Brother DCP-9055CDN