Page 1 CODE : 00ZAR168N/A1E DIGITAL MULTIFUNCTIONAL SYSTEM AR-168N (AR-168L) AR-168L MODEL CONTENTS [ 1 ] GENERAL ......... . . 1 - 1 [ 2 ] SPECIFICATIONS.
Page 2 CAUTION This product is a class 1 laser product that complies with 21CFR 1040 of the CDRH standard and IEC825. This means that this machine does not produce hazardous laser radiation. The use of controls, adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure.
Page 3 Caution At the production line, the output power of the scanner unit is adjusted to 0.57 This product contains a low power laser MILLI-WATT PLUS 20 PCTS and is device. To ensure continued safety do not maintained constant by the operation of remove any cover or attempt to gain access the Automatic Power Control (APC).
Page 4: Table Of Contents
9. Duplex motor section........8-18 10. Software for AR-168N/168L ....... . 5-4 A.
Page 5 [9] ADJUSTMENTS 1. Optical section......... . . 9-1 A.
Page 6: Major Functions
Turn off the power and keep it for more than 10sec. Then turn on the power. When the machine is booted.: There is no problem in the MCU PWB. When the machine is not booted.: The MCU PWB trouble AR-168N/168L GENERAL 1 - 1...
Page 7: Specifications
Saw -tooth charging with a grid, / (-) scorotron discharge Transfer system (+) DC scorotron system Separation system (-) DC scorotron system Developing Developing system Dry, 2-component magnetic brush development system Cleaning Cleaning system Counter blade system (Counter to rotation) AR-168N/168L SPECIFICATIONS 2 - 1...
Page 8: Copy Performance
Enlarge: 1.5mm or less (OC) / 3.0mm or less (R-SPF/Duplex) Reduction (50%): 6.0mm or less (OC) / 8.0mm or less (R-SPF/Duplex) Warm-up time 0 sec. Power save mode reset time 0 sec. Paper jam recovery time 0 sec. *1) Under the polygon ready condition. AR-168N/168L SPECIFICATIONS 2 - 2...
Page 9: Splc Printer
*2: Running change 5. Scan function Type Flat Bed Color Scanner Scanning system Document glass / SPF (AR-168N) / RSPF (AR-168L) Light source 3 CCDs (RGB) sensor scanning by lighting white lamp (2 pcs of CCFL) Resolution Optical: 600 x 1200dpi...
Page 10: Consumable Parts
(Dealer, distributor, OEM, etc.) Production place (SOCC: Fixed to B.) End digit of year Version No. ∗: Destination code Classification A packed with machine EX Destination B packed with machine –25˚C 30˚C 40˚C Option Destination AR-168N/168L CONSUMABLE PARTS 3 - 1...
Page 11: Td Cartridge Replacement
Note: Never carry exposed Toner unit. Be sure to put it in the collection bag. Production control label attachment position(*1) ∗1 The production control label is not attached to the cartridge of a China product. AR-168N/168L CONSUMABLE PARTS 3 - 2...
Page 12: External Views And Internal Structures
Handles 18 Power cord 19 USB connector Parallel connector 21 Paper holder arm 2. Internal Toner cartridge Front cover Side cover Fusing unit release lever Transfer charger Charger cleaner Photoconductive drum AR-168N/168L EXTERNAL VIEWS AND INTERNAL STRUCTURES 4 - 1...
Page 13: Operation Panel
20 Shows the number of copies that has been entered with the numeric keys. 21 A checkmark " " appears when the exposure has been changed, or when two-sided copying, sort, 2 IN 1, or margin shift is selected. AR-168N/168L EXTERNAL VIEWS AND INTERNAL STRUCTURES 4 - 2...
Page 14: Motors And Solenoids
Original pick up solenoid 11 SPF paper feed solenoid SPFS Original feed solenoid (AR-168L only) 12 SPF gate solenoid Controls the document reverse gate. (AR-168L only) 13 Shifter motor SFTM Drives the shifter. AR-168N/168L EXTERNAL VIEWS AND INTERNAL STRUCTURES 4 - 3...
Page 15: Sensors And Switches
Cover open/close detection SPPD sensor SPPD Transmission sensor Paper transport detection "L" at paper pass PD1 sensor Micro-switch Paper width detect "H" at A4 size or less "L" at A4 size or more AR-168N/168L EXTERNAL VIEWS AND INTERNAL STRUCTURES 4 - 4...
Page 16: Pwb Unit
AC power input, DC voltage control, High voltage control CCD sensor PWB For image scanning LSU motor PWB For polygon motor drive (In the LSU) TCS PWB For toner sensor control LSU PWB For laser control (In the LSU) AR-168N/168L EXTERNAL VIEWS AND INTERNAL STRUCTURES 4 - 5...
Page 17: Cross Sectional View
Picks up a sheet of paper from the cassette. Pickup roller Picks up documents. Separation roller Separates documents to feed properly. PS roller Feeds documents to the scanning section. Paper exit roller Discharges documents. AR-168N/168L EXTERNAL VIEWS AND INTERNAL STRUCTURES 4 - 6...
Page 18: Unpacking And Installation
Also make certain the outlet is properly grounded. Software CD-ROM Be sure to allow the required space around the machine for servicing and proper ventilation. 8" (20cm) 8"(20cm) Drum cartridge (installed in machine) 4" 4" (10cm) (10cm) AR-168N/168L UNPACKING AND INSTALLATION 5 - 1...
Page 19: Unpacking
7) Remove the screw (1 pc). 8) Remove Upper developer unit. Lock Unlock 3) Open the bypass tray, and then open the side cover while pressing the side cover open button. AR-168N/168L UNPACKING AND INSTALLATION 5 - 2...
Page 20: Toner Cartridge Installation
Developer unit and the machine with a screw. drop and Toner unit may drop. 15) Completion of Developer unit installation 7) Completion of Toner unit installation Close the front and side cabinets. AR-168N/168L UNPACKING AND INSTALLATION 5 - 3...
Page 21: Loading The Paper Tray
• When loading paper, ensure that there is no space between the paper and the guide, and make sure that the guide is not set too nar- row and causes the paper to bend. Incorrect loading will cause the paper to skew or misfeed. AR-168N/168L UNPACKING AND INSTALLATION 5 - 4...
Page 22: Before Installation
Although it is possible to install Button Manager and Sharpdesk on Windows 98/Me/2000/XP, neither Button Manager nor the scanner function of Sharpdesk can actually be used. AR-168N/168L UNPACKING AND INSTALLATION 5 - 5...
Page 23 "Continue Anyway". you understand the contents of the software license, and then click the "Yes" button. 6) Read the "Readme First" in the "Welcome" window and then click the "Next" button. AR-168N/168L UNPACKING AND INSTALLATION 5 - 6...
Page 24 2) Perform steps 2) through 7) in "Custom installation". 3) Click the "MFP Driver" button. Caution: If the following screen appears during installation of Sharp- desk, click the "Skip" button or the "Continue" button as To view detailed information on the software, click the "Display appropriate to continue the Sharpdesk installation.
Page 25 USB 2.0 Composite Device. This completes the installation of the MFP driver. • If you installed Button Manager, set up Button Manager as explained in "C. Setting up button manager". AR-168N/168L UNPACKING AND INSTALLATION 5 - 8...
Page 26 Windows logo test or digital signature, be sure to click "Yes". 9) You will return to the window of step 3). If you wish to install Sharp- desk, click the "Utility Software" button. To install the Utility Software, see "Installing the Utility Software"...
Page 27: Setting Up Button Manager
Ask your network administrator for the server name and printer name of the machine on the network. 5) Select "Start this program" and then select "Sharp Button Manager 7) In the printer port selection window, verify the network printer that is E"...
Page 28: Connecting The Machine To Your Computer
Select "SC2:" from the "Scanner events" pull-down menu. Select 1) Obtain an IEEE1284 shielded parallel interface cable. "Sharp Button Manager E" in "Send to this application" and click the 2) Insert the cable into the parallel interface connector located on the "Apply"...
Page 29: Interface
The pin numbers and signal names are listed in the following table. during installation of the unit. 8) Pack the unit into the carton. AR-168N/168L UNPACKING AND INSTALLATION 5 - 12...
Page 30: Copy Process
Waste toner box To face Synchronization Paper release Fusing Separation Transfer Manual feed with drum down tray Heat roller Electrode Transfer charger Cassette paper feed Transfer high Heater lamp voltage unit Print process Paper transport route AR-168N/168L COPY PROCESS 6 - 1...
Page 31: Outline Of Print Process
A uniform negative charge is applied over the OPC drum surface by Aluminum the main charging unit. Stable potential is maintained by means of the layer Scorotron charger. Non-image area Image area Positive charges are generated in the aluminum layer. About DC5.5KV ( 580V/ 400V) AR-168N/168L COPY PROCESS 6 - 2...
Page 32 Toner remaining on the drum is removed and collected by the cleaning blade. It is transported to the waste toner collecting section in the cleaning unit by the waste toner transport roller. Toner is attracted over the shadowed area because of the developing bias. AR-168N/168L COPY PROCESS 6 - 3...
Page 33 Voltage added to the screen grid can be selected, high and low. To make it easily understood, the figure below shows voltage transition at the developer unit. START STOP Print potential Toner attract Developing bias potential Drum potential High Time AR-168N/168L COPY PROCESS 6 - 4...
Page 34: Operational Descriptions
5) The LSU emits laser beams according to the print data. (Electrical signals are converted into photo signals.) 6) The laser beams are radiated through the polygon mirror and vari- ous lenses to the OPC drum. AR-168N/168L OPERATIONAL DESCRIPTIONS 7 - 1...
Page 35: Scanner Section
473 through the idle gear, the pulley gear, the belt 190, and the idle pulley to drive the optical unit. Scanner motor Pulley gear Idle pulley Belt 473 Belt 190 Optical unit Shaft Idle gear AR-168N/168L OPERATIONAL DESCRIPTIONS 7 - 2...
Page 36: Laser Unit
(Refer to the figure below.) Makes the laser scanning speeds at both ends of the drum same as each other. a ≠ b ≠ c d = e = f f θ LENS AR-168N/168L OPERATIONAL DESCRIPTIONS 7 - 3...
Page 37: General Description
Level of the thermistor is controlled by the main PWB. Triac (in the power supply unit) With the signal from the main PWB, the triac is controlled on and off. (power supply PWB) AR-168N/168L OPERATIONAL DESCRIPTIONS 7 - 4...
Page 38 4) After more than half rotation of the pick-up roller, the paper feed latch is brought in contact with a notch on the clutch sleeve, stopping rotation of the pick-up roller. AR-168N/168L OPERATIONAL DESCRIPTIONS 7 - 5...
Page 39 (Refer to A-5 - 8.) roller is pressed to the surface of the paper to start paper feeding. 5) The solenoid turns off to close the gate and return to the initial state. MPFS MPFS AR-168N/168L OPERATIONAL DESCRIPTIONS 7 - 6...
Page 40: Rspf Section
Mylar attached to the paper exit guide (document scanning section) by the scanner (CCD) and detecting the varied quantity. (Floating) (White Mylar) Reference line Reference line (CCD) A - B = Varied quantity of pixels (pixel) AR-168N/168L OPERATIONAL DESCRIPTIONS 7 - 7...
Page 41: D-D (Duplex To Duplex) Mode Paper/Document Transport (Duplex Model)
• The paper is passed through the fusing section and the lower side of the gate section to the paper exit tray side, (but not discharged completely.) • It is stopped once and switchback operation is performed. (To the back copy) AR-168N/168L OPERATIONAL DESCRIPTIONS 7 - 8...
Page 42: Shifter
D - S (Duplex to Simplex) Rotation copy mode: The front and the back are in upside down each other. Copy mode without rotation: The front and the back are not in upside down. AR-168N/168L OPERATIONAL DESCRIPTIONS 7 - 9...
Page 43: Disassembly And Assembly
1. High voltage section (Cleaning the screen grid and the sawteeth.) A. List Part name Ref. Drum Transfer charger unit Charger wire B. Drum replacement 1) Remove the drum cover. (4 Lock Tabs) AR-168N/168L DISASSEMBLY AND ASSEMBLY 8 - 1...
Page 44 Attach the drum from (b). (Prevention against the sub blade edge breakage) Attach the drum so that its position with the sub blade is as shown. Sub blade Be careful not to allow the moquette to cover the sub blade. Example of NG AR-168N/168L DISASSEMBLY AND ASSEMBLY 8 - 2...
Page 45: Disassembly Procedure (Transfer Charger Unit)
1) Press the side cover open/close button and open the side cover. Transfer charger Lock pawl rear D. Assembly procedure For assembly, reverse the disassembly procedure. E. Charger wire cleaning 1) Remove the charger cleaner from the manual paper feed unit. AR-168N/168L DISASSEMBLY AND ASSEMBLY 8 - 3...
Page 46: Charger Wire Replacement
• The rest of the charger wire must be within 1.5mm. Refer to Fig.1 • The spring hook section (charger wire winding section) must be in the range of the projection section. • Be careful not to twist the charger wire. Charger wire Protrusion 1.5mm Fig.1 AR-168N/168L DISASSEMBLY AND ASSEMBLY 8 - 4...
Page 47: Assembly Procedure
7) Remove the table glass. A. List Part name Ref. Copy lamp unit Copy lamp Lens unit B. Disassembly procedure 1) Remove four screws, and remove the rear cabinet and the rear cabinet cover. AR-168N/168L DISASSEMBLY AND ASSEMBLY 8 - 5...
Page 48: Assembly Procedure
12) Remove the rod. Note: Attach the FCC to Marking line. fit with the marking line. 13) Lift the rear side of the carriage, remove the belt and the connec- tor, and remove the carriage. AR-168N/168L DISASSEMBLY AND ASSEMBLY 8 - 6...
Page 49: Fusing Section
6) Remove the screw and remove the PPD2 sensor. 3) Cut the binding band, remove the screw, and remove the ther- mistor. PPD2 sensor Thermistor AR-168N/168L DISASSEMBLY AND ASSEMBLY 8 - 7...
Page 50 8) Remove the spring and remove the separation pawls (3 pcs.). Heat roller disassembly (Continued from procedure (4).) 5) Remove screws, remove the fusing cover, and open the heat roller section. 9) Remove the E-ring and remove the reverse gate. AR-168N/168L DISASSEMBLY AND ASSEMBLY 8 - 8...
Page 51: Assembly Procedure
2) Remove the two screws, and remove the hinge guide R. 3) Remove the fan duct and disconnect the connector. (2 positions) 4) Remove the six screws, and remove the scanner unit. C. Assembly procedure For assembly, reverse the disassembly procedure. AR-168N/168L DISASSEMBLY AND ASSEMBLY 8 - 9...
Page 52 7) Remove the screw, and open the upper paper guide. 12) Remove the connector and the screw, and remove the speaker unit. (When the AR-FX9 is installed) 8) Remove the roller, and remove the belt. AR-168N/168L DISASSEMBLY AND ASSEMBLY 8 - 10...
Page 53 16) Remove the three screws, and remove the MCU PWB. 20) Remove the five screws and the grounding wire, and remove the main drive unit. 17) Remove two screws and remove the toner motor. CAUTION:Attach the gears securely AR-168N/168L DISASSEMBLY AND ASSEMBLY 8 - 11...
Page 54 22) Remove each pawl, and remove the paper exit tray. [Note for installation] Fit the lower paper guide hole (a) with the shifter gear hole (b) so that the black resin (c) of the shifter unit can be checked. AR-168N/168L DISASSEMBLY AND ASSEMBLY 8 - 12...
Page 55 29) Remove the E-ring, the gear, and the bearing, and remove the shifter roller. Note: When assembling, turn it to the right and attach. 30) Put the lower paper guide unit upside down, remove the two screws, and remove the shifter motor. AR-168N/168L DISASSEMBLY AND ASSEMBLY 8 - 13...
Page 56: Assembly Procedure
38) Remove the semi-circular roller unit. 39) Remove the semi-circular rubber. 35) Remove the screw and the connector, and remove the PPD1 sen- sor PWB. C. Assembly procedure For assembly, reverse the disassembly procedure. AR-168N/168L DISASSEMBLY AND ASSEMBLY 8 - 14...
Page 57: Manual Paper Feed Section
1) Remove the screw and remove the multi upper cover. 4) Remove two screws and remove the multi feed bracket unit from the multi paper feed upper frame. 2) Remove the screw and remove the side door detection unit. Back Wire treatment AR-168N/168L DISASSEMBLY AND ASSEMBLY 8 - 15...
Page 58: Assembly Procedure
For assembly, reverse the disassembly procedure. D. Pressure plate holder attachment 1) Attach the pressure plate holder so that the resin section is not covered with the seal M1-N. Seal M1-N Pressure plate holder Attachment reference Attachment reference AR-168N/168L DISASSEMBLY AND ASSEMBLY 8 - 16...
Page 59: Rear Frame Section
4) Disconnect the connector. 5) Remove two screws, and remove the scanner motor. C. Assembly procedure For assembly, reverse the disassembly procedure. 6) Remove two screws and one harness, and remove the main motor. AR-168N/168L DISASSEMBLY AND ASSEMBLY 8 - 17...
Page 60: Power Section
4) Remove the Duplex motor. C. Assembly procedure For assembly, reverse the disassembly procedure. Note: When reassembling, be sure to engage the Duplex motor gear with the belt on the main body side. AR-168N/168L DISASSEMBLY AND ASSEMBLY 8 - 18...
Page 61: Rspf Section (Rspf Model Only)
1) Remove the belt, the paper feed frame spring, and two harnesses. 2) Remove the pickup unit. B. Intermediate tray Remove the intermediate tray. Note: When reassembling, be careful of the hole position for the paper feed frame spring. AR-168N/168L DISASSEMBLY AND ASSEMBLY 8 - 19...
Page 62: Upper Cover Of The Pickup Unit
(1) Remove the clutch unit. 1) Remove the E-ring. 2) Remove the pulley and the bush. 3) Slide the bush in the arrow direction. 4) Lift the clutch pawl. 5) Remove the clutch unit. AR-168N/168L DISASSEMBLY AND ASSEMBLY 8 - 20...
Page 63: Manual Paper Feed Roller, Pickup Roller
3) Slide the bushing in the arrow direction. 3) Remove five screws, and remove the transport unit. 4) Remove the take-up roller. Note: When reassembling, hang the convex portion of the roller unit on the solenoid arm. AR-168N/168L DISASSEMBLY AND ASSEMBLY 8 - 21...
Page 64: Belt 1
2) Remove the drive unit. 3) Remove the belt. O. Clutch 1) Cut the band with nippers. 2) Remove the harness. 3) Remove the clutch. Note: When reassembling, hang the belt on the boss. AR-168N/168L DISASSEMBLY AND ASSEMBLY 8 - 22...
Page 65: Paper Supply Roller
1) Loosen the screw. 2) Open the paper exit paper guide. 3) Remove the parts. 4) Remove the paper supply roller. R. Transport roller 1. (1) Remove the parts. 1) Remove the parts. AR-168N/168L DISASSEMBLY AND ASSEMBLY 8 - 23...
Page 66: Paper Exit Roller
(2) Remove the paper feed paper guide upper. 1) Remove two screws. 2) Remove the paper feed paper guide upper. (3) Remove the transport roller. 1) Remove the paper exit paper guide. 2) Remove the transport roller. AR-168N/168L DISASSEMBLY AND ASSEMBLY 8 - 24...
Page 67: Solenoid
(1) Remove the reverse gate 1) Remove the ring 2) Remove the reverse gate Note: When reassembling, be careful of the groove and the hole positions of the spring. Note: When reassembling, hang 2) on the solenoid. AR-168N/168L DISASSEMBLY AND ASSEMBLY 8 - 25...
Page 68: Optical Section
1) Set the scale on the document table as shown below. (Use a long scale for precise adjustment.) 2) Set the copy magnification ratio to 100%. 3) Make a copy on A4 or 81/2" x 11" paper. 4) Measure the length of the copied scale image. AR-168N/168L ADJUSTMENTS 9 - 1...
Page 69: Image Position Adjustment
When the value of B is increased by 10, the void is extended by SCAN mode lamp about 0.1mm. (For 25 or less, however, the void amount is regarded as 0.) * The SPF adjustment is made by adjusting the SPF image scan start position after OC adjustment. AR-168N/168L ADJUSTMENTS 9 - 2...
Page 70: Copy Density Adjustment
1) Arrangement before execution of the copy density adjustment • Clean the optical section. • Clean or replace the charger wire. • Check that the voltage at the high voltage section and the developing bias voltage are in the specified range. AR-168N/168L ADJUSTMENTS 9 - 3...
Page 71: Necessary Tool For Copy Density Adjustment
Brightness 1 step only Check the adjustment level (shown in the above table) of the Manual Mode Brightness 5 steps. Adjustment of only the center exposure test chart (Sharp Gray Scale). brightness is made. Sharp Gray Scale adjustment level Photo Mode Brightness 5 steps.
Page 72: High Voltage Adjustment
An increase of 1 in setting represents an increase of 0.1 mm in image loss. Front edge of paper The front edge of the scale on test chart Void area 5 10 less than 4 mm AR-168N/168L ADJUSTMENTS 9 - 5...
Page 73: Adjusting Trailing Edge Void In Duplex Copy Mode
4) Make a copy and check the void area of the scale on the image. Adjust the setting so that the void area is 2 - 4 mm. An increase of 1 in setting represents an increase of 0.1 mm in void area. l Void position to be checked AR-168N/168L ADJUSTMENTS 9 - 6...
Page 74: Rspf Scan Position Automatic Adjustment
Reduce 1: 0.1% below. ratio (RSPF decrease Chart size: 300 x 100, prepared with cutting sheet No. 791 (Black) or mode) an equivalent one. Reason: To prevent erroneous detection by disturbing light of a fluorescent lamp, etc. AR-168N/168L ADJUSTMENTS 9 - 7...
Page 75: Automatic Black Level Correction
After canceling, the machine goes into the sub code entry standby mode. THE JOB IS BEING CANCELED. 3) After execution 63-02 BLACK LEVEL *** OK 3) In case of an error 63-02 BLACK LEVEL *** ERR AR-168N/168L ADJUSTMENTS 9 - 8...
Page 76: Test Command, Trouble Codes
Shift to copy with warm-up display (W-UP C-MODE) set to OC) Developing bias output (DVLP BIAS SET.) Main charger output (Grid HIGH) (MHV(H) SET.) Main charger output (Grid LOW) (MHV(L) SET.) Transfer charger output (THV SET.) AR-168N/168L TEST COMMAND, TROUBLE CODES 10 - 1...
Page 77 FAX is installed.) FAX mode sharpness adjustment (Executable only when Time setting/check (Executable only when the FAX is the FAX is installed.) installed.) CI signal check (Executable only when the FAX is installed.) AR-168N/168L TEST COMMAND, TROUBLE CODES 10 - 2...
Page 78: Descriptions Of Various Test Commands
When [ENTER/START] key is pressed, the motor rotates for 10sec at the speed corresponding to the (Disabled when set to OC) set magnification ratio. [Operation] The operation is similar to test command 1-01. AR-168N/168L TEST COMMAND, TROUBLE CODES 10 - 3...
Page 79 1) Initial display 02-10 RSPF SGS CHK EXECUTING... Shifter operation check [Function] (SHIFTER CHK) The shifter is moved back and forth in four reciprocations. [Operation] 1) Initial display 03-03 SHIFTER CHK EXECUTING... AR-168N/168L TEST COMMAND, TROUBLE CODES 10 - 4...
Page 80 05-02 HT LAMP CHK EXECUTING... Copy lamp ON check [Function] (C-LAMP CHK) When [ENTER/START] key is pressed, the copy lamp turns ON for 5sec. [Operation] 1) Initial display 05-03 C-LAMP CHK EXECUTING... AR-168N/168L TEST COMMAND, TROUBLE CODES 10 - 5...
Page 81 However, warm-up is continued. After completion of warm-up, counting is terminated. (The aging function is removed from test com- mand 7-01.) [Operation] 1) Initial display 2) After 10sec 07-08 W-UP C-MODE 07-08 W-UP C-MODE AR-168N/168L TEST COMMAND, TROUBLE CODES 10 - 6...
Page 82 The smaller the set value is, the lower the speed is. (Setting range: 1 - 13, Default: 8) [Operation] 1) Initial display 2) [10KEY] 3) [ENTER/START] 09-04 DPLX ROT.SPEED 09-04 DPLX ROT.SPEED 09-04 DPLX ROT.SPEED 8( 1-13) 7( 1-13) 7( 1-13) AR-168N/168L TEST COMMAND, TROUBLE CODES 10 - 7...
Page 83 ( 0-5 ) 4:25,000 ( 0-5 ) ← 2) [ /10KEY] 21-01 M-CYCLE 3:13,000 ( 0-5 ) Maintenance counter display [Function] (M-CNT) The maintenance counter is displayed. [Operation] 1) Initial display 22-01 M-CNT ***,*** AR-168N/168L TEST COMMAND, TROUBLE CODES 10 - 8...
Page 84 [CLEAR] key: Returns to "1) Initial display". [CLEAR] key: Returns to "1) Initial display". Drum counter display [Function] (DRUM CNT) The drum counter is displayed. [Operation] 1) Initial display 22-12 DRUM CNT ***,*** AR-168N/168L TEST COMMAND, TROUBLE CODES 10 - 9...
Page 85 The printer counter is displayed. [Operation] 1) Initial display 22-18 PRT.CNT ***,*** Scanner mode counter [Function] display (S-MODE CNT) The scanner mode counter is displayed. [Operation] 1) Initial display 22-19 S-MODE CNT ***,*** AR-168N/168L TEST COMMAND, TROUBLE CODES 10 - 10...
Page 86 [Function] CLR.) When [ENTER/START] key is pressed, the copy counter value is cleared to 0, and "000,000" is dis- played on the LCD. [Operation] 1) Initial display 24-08 COPIES CLR. CLEARED 000,000 AR-168N/168L TEST COMMAND, TROUBLE CODES 10 - 11...
Page 87 After completion of 30sec operation, the operation is turned off with the Bios and the machine goes into the sub code entry standby mode. [Operation] 1) Initial display 25-10 LSU CHK EXECUTING... AR-168N/168L TEST COMMAND, TROUBLE CODES 10 - 12...
Page 88 [ENTER/START] key to save the setting. Code number Setting Display item Remark Rear edge void NO Rear edge void YES Default [Operation] The operation is similar to test command 21-01. AR-168N/168L TEST COMMAND, TROUBLE CODES 10 - 13...
Page 89 The default “5” of transfer ON timing is “330ms passed from PS release.” ∗ When set to “0,” it is the same as setting to “5.” [Operation] The operation is similar to test command 21-01. AR-168N/168L TEST COMMAND, TROUBLE CODES 10 - 14...
Page 90 Since the manual paper feed sensor is a single bypass sensor, its status is not displayed. ∗ The width sensor is available only in the FAX models. [Operation] 1) Initial display 2) When sensor ON 30-01 P-SENSOR 30-01 POD PPD1 PPD2 PPD3 DRST AR-168N/168L TEST COMMAND, TROUBLE CODES 10 - 15...
Page 91 When this test command is executed, the current set code number is displayed. Enter the code num- ber and press [ENTER/START] key to change the setting. Code Set temperature (°C) Remark Default [Operation] The operation is similar to test command 21-01. AR-168N/168L TEST COMMAND, TROUBLE CODES 10 - 16...
Page 92 /10KEY] to switch the setting, and press [ENTER/START] key to save it to the EEPROM. The machine goes to the sub code entry standby mode. Code Set temperature (°C) Remark Default [Operation] The operation is similar to test command 21-01. AR-168N/168L TEST COMMAND, TROUBLE CODES 10 - 17...
Page 93 SCAN mode lamp TS mode (TEXT) (600dpi) TSTXT PRINT mode lampSCAN mode lamp TS mode (AE) (600dpi) TSAE COPY mode lampSCAN mode lamp [Operation] The operation is similar to test command 46-01. AR-168N/168L TEST COMMAND, TROUBLE CODES 10 - 18...
Page 94 PRINT 2) Enter a 2-digit value as the exposure adjust- After completion of printing, returns to “2)” ment value with [10KEY]. display. ADJUST EXP. FINE ("YY" is the entered exposure adjustment value.) AR-168N/168L TEST COMMAND, TROUBLE CODES 10 - 19...
Page 95 PRINT mode lamp SCAN mode lamp TS mode (AE) (300dpi) TSAE COPY mode lamp SCAN mode lamp ∗ No density display on LCD. [Operation] The operation is similar to test command 46-01. AR-168N/168L TEST COMMAND, TROUBLE CODES 10 - 20...
Page 96 When the set value is increased, copy becomes darker. When the set value is decreased, copy becomes lighter. (Adjustment range: 1 – 99) Mode Display item Default Remark [Operation] The operation is similar to test command 46-01. AR-168N/168L TEST COMMAND, TROUBLE CODES 10 - 21...
Page 97 SCAN mode lamp TS mode (TEXT) TSTXT PRINT mode lamp SCAN mode lamp TS mode (AE) TSAE COPY mode lamp SCAN mode lamp [Operation] The operation is similar to test command 46-01. AR-168N/168L TEST COMMAND, TROUBLE CODES 10 - 22...
Page 98 1: STD 2: FINE 3: S-FINE 4: FINE/PHOTO 5: S-FINE/PHOTO When initializing each data: 1 [Operation] 1) Initial display 4) Enter a one-digit value (0-2) as the sharp- ness adjustment value with [10KEY]. SHARPNESS SETTING ← → PRESS SHARPNESS SETTING ZZZZ(0-2) 2) [←/→] or after 2sec...
Page 99 RSPF document *1 ∗ When there is no document in RSPF, copy is inhibited. *1: Only when RSPF is installed. If installed, skipped. [Operation] The operation is similar to test command 46-01. AR-168N/168L TEST COMMAND, TROUBLE CODES 10 - 24...
Page 100 To enter the download mode, there is a method to use key operations as well as to use a test com- ← mand. With the power OFF, press and hold [CA] + [ ], turn on the power. [Operation] 1) Initial display DOWNLOAD MODE AR-168N/168L TEST COMMAND, TROUBLE CODES 10 - 25...
Page 101 When paper is discharged, the shifter is operated. (Example) Distance from the paper lead edge to the image lead edge, H = 5mm Image loss, R = 4mm 10mm [Operation] The operation is similar to test command 46-01. AR-168N/168L TEST COMMAND, TROUBLE CODES 10 - 26...
Page 102 SCAN mode lamp (*) : Support for the installation models. For non-installation models, skip. ∗ When paper is discharged, the shifter is operated. [Operation] The operation is similar to test command 46-01. AR-168N/168L TEST COMMAND, TROUBLE CODES 10 - 27...
Page 103 The initial value for duplex setting is "1to2/Short Edge" for the OC/SPF setting, or "2to2" for the RSPF setting. ∗ When paper is discharged, the shifter is operated. [Operation] The operation is similar to test command 46-01. AR-168N/168L TEST COMMAND, TROUBLE CODES 10 - 28...
Page 104 When [ENTER/START] key is pressed, HSYNC is performed and the polygon motor is rotated for 30sec. At that time, the COPY mode lamp is lighted for 100msec every time when HSYNC is detected. [Operation] 1) Initial display 61-03 LSU CHK EXECUTING... AR-168N/168L TEST COMMAND, TROUBLE CODES 10 - 29...
Page 105 2) [ENTER/START] Correction start THE JOB IS BEING CANCELED. 63-02 BLACK LEVEL 3) After execution EXECUTING... 63-02 BLACK LEVEL *** OK 3) In case of an error 63-02 BLACK LEVEL *** ERR AR-168N/168L TEST COMMAND, TROUBLE CODES 10 - 30...
Page 106 FAX soft SW initializing [Function] (excluding the adjustment Use to initializing FAX soft SW. values) (Executable only [Operation] when the FAX is installed.) 1) Initial display INITIALIZED After 2sec, FAX control is terminated. AR-168N/168L TEST COMMAND, TROUBLE CODES 10 - 31...
Page 107 1:NO SIGNAL 35:LINE ON HOOK ∗ [CLEAR] key: FAX control is terminated. 3) [ENTER] key Send after setting OUTPUTING SIGNAL MAX PRESS CLEAR TO STOP ∗ [CLEAR] key: Returns to "1) Initial display". AR-168N/168L TEST COMMAND, TROUBLE CODES 10 - 32...
Page 108 After completion of memory clear, the buzzer After completion of memory clear sounds. CLEARED CLEARED PLEASE POWER OFF After 2sec, FAX control is terminated. Remains unchanged until the power is turned off. AR-168N/168L TEST COMMAND, TROUBLE CODES 10 - 33...
Page 109 ..SELECT SIGNAL (1-6) 1:NO SIGNAL 6:00001 ∗ [CLEAR] key: FAX control is terminated. 3) [ENTER] key OUTPUTING SIGNAL SSW PRESS CLEAR TO STOP ∗ [CLEAR] key: Returns to "1) Initial display". AR-168N/168L TEST COMMAND, TROUBLE CODES 10 - 34...
Page 110 PRESS CLEAR TO STOP [CLEAR] key: FAX control is terminated. ∗ [CLEAR] key: Returns to "1) Initial display". 2) [10KEY] input The content selected with signal send level selection is set inside. AR-168N/168L TEST COMMAND, TROUBLE CODES 10 - 35...
Page 111 FAX is installed.) [Operation] 1) Initial display HS2 :xxx HS1 :xxx RHS :xxx EXHS:xxx ↑ The display is switched every 2sec. ↓ CHECKING PRESS CLEAR TO STOP ∗ [CLEAR] key: FAX control is terminated. AR-168N/168L TEST COMMAND, TROUBLE CODES 10 - 36...
Page 112 When [←] key is pressed, the sequence is reversed. SELECT (1-4) SELECT (1-4) ..1:NO SOUND 2:LOW ∗ [CLEAR] key: FAX control is terminated. 3) [ENTER] key STORED xxx: Set content After 2sec, FAX control is terminated. AR-168N/168L TEST COMMAND, TROUBLE CODES 10 - 37...
Page 113 Use to check the CI signal. installed.) When CI signal is detected, OFF → ON. [Operation] 1) Initial display CHECKING CI:OFF PRESS CLEAR TO STOP ∗ [CLEAR] key: FAX control is terminated. AR-168N/168L TEST COMMAND, TROUBLE CODES 10 - 38...
Page 114: Trouble Codes
CCD unit abnormality remedy terminated, it may cause an error. Download MCU PWB abnormality the program again to avoid this. Check Check connection of the CCD unit flat cable. Check the CCD unit. remedy AR-168N/168L TEST COMMAND, TROUBLE CODES 10 - 39...
Page 115 IC on FAX PWB causes abnormality Check Check connector/harness of FAX control PWB and MCU PWB. remedy Check the grounding of the copier. Check FAX control PWB ROM. Replace the FAX PWB. AR-168N/168L TEST COMMAND, TROUBLE CODES 10 - 40...
Page 116 MCU PWB abnormality Check Use TC 25-01 to check the main motor operations. remedy Check connection of the main motor harness/ connector. Replace the main motor. Replace the MCU PWB. AR-168N/168L TEST COMMAND, TROUBLE CODES 10 - 41...
Page 117: Maintenance
Displayed on the LCD. • The remaining toner indication is based on the number of revolutions of the toner motor. • The toner END indication appears when the END is detected by the toner sensor. AR-168N/168L MAINTENANCE 11 - 1...
Page 118: User Program
• Use this setting to select how long a key must be pressed for the input to be 2: 0.5 SEC. accepted. By selecting a longer time, you can prevent settings from being 3: 1.0 SEC. changed by the accidental pressing of a key. 4: 1.5 SEC. 5: 2.0 SEC. AR-168N/168L USER PROGRAM 12 - 1...
Page 119: Print Mode
: The scanning speed increases when the USB 2.0 mode is set to "HI-SPEED", however, the printing speed does not increase considerably. : When the 250-sheet paper feed unit is installed. AR-168N/168L USER PROGRAM 12 - 2...
Page 120: Selecting A Setting For A User Program
Your selection appears briefly and then the previous screen appears. NOTE: When "AE LEVEL ADJUST" is selected in the user programs and the [ENTER] key is pressed, the automatic exposure adjustment screen appears. Adjust the exposure and press the [ENTER] key. AR-168N/168L USER PROGRAM 12 - 3...
Page 121: Electrical Section
[13] ELECTRICAL SECTION 1. Block diagram A. Overall block diagram AR-168N/168L ELECTRICAL SECTION 13 - 1...
Page 122: Circuit Descriptions
DGND /CPUSYNC Interruption Horizontal sync (ASIC) ESSRDY Input E-sort control level input ESCRDY Output E-sort control DGND AVcc CPU3.3V DGND Vref CPU3.3V Interruption Zero cross signal Analog Fusing thermistor level input input AR-168N/168L ELECTRICAL SECTION 13 - 2...
Page 123 64Mb or 128Mb CCD-RS,CCD-CK1,CCD-CK2 to CCD(SCAN UNIT) CCD-CP,CCD-SHR (Op.400MByte) bsmp,vsmp,mclk,OEB afesen,afesck,afesdi to AFE(SCAN UNIT) AFE-DB[7..0] to USB I/F to IEEE1284 I/F MIRCNT,MTR-Y1,MTR-PH-1,MTR-I01,MTR-I11,MTR-I21 MTR-Y2,MTR-PH-2,MTR-I02,MTR-I12,MTR-I22 to MIRROR MOTOR DRIVER SYNC to LSU-PWB to CCFL(Scan UNIT) LEND CPUSYNC AR-168N/168L ELECTRICAL SECTION 13 - 3...
Page 124 Tr array IC Transfer charger signal control signal. "H":ON ope_latch Tr array IC Operation circuit latch gridl Tr array IC Main charger grid signal. Data take-in at control signal. "H": L "L" output GND_AC Power AR-168N/168L ELECTRICAL SECTION 13 - 4...
Page 125 160 GND_core Power connector communication port) 161 out_req Not used 123 vpout I/F board VPOUT signal (USB 162 in_ack Not used connector communication port) 163 in_cs Not used 124 GND_core Power 164 GND_AC Power AR-168N/168L ELECTRICAL SECTION 13 - 5...
Page 126 252 GND_AC Power signal 253 ram_data7 IN/OUT SDRAM SDRAM (Image 223 GND_core Power process page 224 mtr_y3 Carriage motor memory) data bus current control signal 225 mtr_y2 Tr array IC Carriage motor current control signal AR-168N/168L ELECTRICAL SECTION 13 - 6...
Page 127 SDRAM's clock 277 GND_core Power 278 ram_mad12 SDRAM SDRAM (Image process page memory) address bus 279 ram_mad11 SDRAM SDRAM (Image process page memory) address bus 280 ram_mad9 SDRAM SDRAM (Image process page memory) address bus AR-168N/168L ELECTRICAL SECTION 13 - 7...
Page 128 When the thermistor terminal voltage falls below the set level, the output signal HL from ASIC becomes LOW level. b. The HL signal becomes LOW, the power PWB photo triac coupler LOAD LOAD turns OFF, and the heater lamp turns OFF. AR-168N/168L ELECTRICAL SECTION 13 - 8...
Page 129 Each motor is driven in W1-2 phase excitement, 1-2 phase excitement, or 2-phase excitement. The mirror motor/SPF motor related to image scan are driven by a con- stant current, and each motor current is switched in each magnification ratio. AR-168N/168L ELECTRICAL SECTION 13 - 9...
Page 130 DMT1 /SFTMT1 (11-A1) R339 /DMT2 (11-B3) (4-B2) SFTMT1 (1-D3) DMT2 /SFTMT2 (11-A1) R340 /DMT3 (11-B3) (4-B2) SFTMT2 /SFTMT3 (11-A1) (1-D3) DMT3 24VDup R341 (4-B2) SFTMT3 24VSFT MTZ J22B TD62064AF MTZ J22B TD62064AF PGND PGND AR-168N/168L ELECTRICAL SECTION 13 - 10...
Page 131: Dc Power Circuit
The normal noise means that overlapped in the AC line or the output line. It is attenuated by C023, C001, L002, C004, and L003. Refer to fig (2). fig (3) Rush current prevention, rectifying/smoothing circuit fig (2) Noise filter circuit AR-168N/168L ELECTRICAL SECTION 13 - 11...
Page 132 The high frequency pulse generated by the inverter circuit is decreased by the converter transformer, rectified by the high frequency diode D113, and smoothed by C107 and C108. Voltage waveform Voltage waveform fig (7) +5V rectifying/smoothing circuit voltage waveform AR-168N/168L ELECTRICAL SECTION 13 - 12...
Page 133 Memo...
Page 134: Circuit Diagram
P10/PO8/TIOCA0/DACK0 (4-C3) PG0/CAS PG1/CS3 PG2/CS2 BR110 /CS3# /CS3 /CS2# /CS2 /CS1# /CS1 /CS0# /CS0 Reset IC VCC3 VCC3 VCC3 0.1u 11kF 3.3kJ /RESET0 (2-C4) 10kF M51957BFP 0.1u OPEN RESETOUT1 (8-A1) (9-B2) /ASIC_RST (2-D1) 10kJ AR-168N/168L CIRCUIT DIAGRAM 14 - 1...
Page 135 (FW) (FW) (4-D4) (8-A2) 0.1u CPU_SYNC CPU_SYNC (2-B1) MT_HOME mt_at_home (14-C3) 10kJ CCD_TG CCD_TG (2-A4) (14-D3) (SPPD) (SPPD) (7-E1) (PSW) (PSW) (7-E1) 24WC02 (4-A1) OPEN SDA1 (4-B1) A[19..0] (2-A1) (3-A3) VCC3 ZJSR5101-223 CPU3.3 10u/16V AR-168N/168L CIRCUIT DIAGRAM 14 - 2...
Page 136 (3-E2) SDCLK GND(AC) R351 CPUDATA15 CPUDATA14 CPUDATA13 C397 CPUDATA12 0.1u CPUDATA11 CPUDATA10 CPUDATA9 CPUDATA8 VCC3 ZJSR5101-223 SFCLK48 OUTPUT 0.1u N.C. OSC-31 48MHz HC-49U/S (16.1511MHz) (13-C2) (4-A2) (3-A1) (1-D2) D[15..0] PFCLKIN (3-A3) (1-C1) A[19..0] PFCLKOUT AR-168N/168L CIRCUIT DIAGRAM 14 - 3...
Page 137 PARAD4 (5-B3) CPFS2 OUTP05B PARAD5 PARAD6 PARAD7 BR59 10kJ /INIT /SLCTIN /AUTOF D /STB VCC3 R352 33J (/ASIC_RST) R353 N.M. /RESET1 R358 10kJ R354 N.M. /OA_RST (9-B2) SYNC# (/SYNC) (4-D4) R355 C398 /FWREN N.M. AR-168N/168L CIRCUIT DIAGRAM 14 - 4...
Page 138 I/O7 DQ12 HWRZ /RESET0 VCC3 VCC3 DQ11 (1-D3) RY/BY RY/BY DQ10 CS1Z (1-A2) /CS1 0.1u 0.1u (15-B2) (2-C1) (1-B3) HWRZ (1-B3) /HWR IS63LV1024L-12J-TR Flash ROM (15-C2) (4-A2) (2-A1) (1-D2) D[15..0] Flash ROM LH28F400BVE-BL85 OPEN AR-168N/168L CIRCUIT DIAGRAM 14 - 5...
Page 139 N.M. SDRAM (16bit x 4bank) /CS0 (1-A2) VCC3 0.1u 0.1u 0.1u 0.1u 0.1u 0.1u 0.1u 0.1u MAD[12..0] (2-A3) Vendor/Type LH28F800BJE-PBTL90 SDRAM 128Mb(2Mx16bitx4bank) MT48LC8M16A2TG-75(Micron) HY57V281620HCT(Hyndai) K4S281632E-TC75(Samsung) W981216BH-75(Winbond) HY57V641620HGT-P Hyndai) 64Mb(1Mx16bitx4bank) MT48LC4M16A2TG-75 Micron) K4S641632F-TC75(Samsung) K4S641632E-TC1H(Samsung) W986416DH-7(Winbond) AR-168N/168L CIRCUIT DIAGRAM 14 - 6...
Page 140 (1-D3) R349 (1-D3) LCDDB5 R350 TC7SBD385AFU (1-D3) LCDDB4 (1-D3) LCDE C103 (1-D3) LCDRS 0.1u /RESET0 /RESET# R308 R309 10kJ 10kJ EN5V 3.3V IC20 (1-E2) (SCL1) (11-D3) EN5V NC7ST08M5X C109 0.1u For CRUM Model Only AR-168N/168L CIRCUIT DIAGRAM 14 - 7...
Page 141 (SELIN3) (4-A4) (10-E3) (KEYSC1) (10-E3) (KEYSC2) (10-E3) (KEYSC3) (10-E3) (TM) (6-D2) (TM_) (6-D2) 74VHCT244 VCC3 3.3V IC19 (LCDDB7) (10-E3) (LCDDB6) (10-E3) (LCDDB5) (10-E3) (LCDDB4) (10-E3) (LCDE) (10-E3) (LCDRS) (10-E3) R323 /RESET# R324 /RESET1 74LCX244 AR-168N/168L CIRCUIT DIAGRAM 14 - 8...
Page 142 MRPS_3 SRRC# (2-C1) LDEN /LDEN (2-D1) (5-E3) KID65503F TD62064AF PGND For SPF/DSPF Model Only IC27 (2-C1) /MMD (2-A3) MM_Y1 MMref0 (2-A3) MM_Y2 MMref1 (2-C1) MM_Y3 MMref2 (1-D3) POFF /POFF (2-C1) /PMD (2-C1) /LEND KID65503F AR-168N/168L CIRCUIT DIAGRAM 14 - 9...
Page 143 KIA393F MCLK_A (11-B2) RPS_1 (6-A1) THOPEN (4-A4) RPS_2 (6-A1) (6-A1) RPS_3 (11-B2) C114 10kF 22000p 240J 240J HLOUT (10-B3) IC24B KIA358F (11-A4) Mref0 (6-A3) 10kJ Mref1 (6-A3) KRC106S Mref2 (6-A3) SHOLD (11-B2) (10-B4) (11-B2) AR-168N/168L CIRCUIT DIAGRAM 14 - 10...
Page 144 2200p (5-C2) MRPS_1 In A (5-C2) MRPS_2 In /B PGND (5-C2) MRPS_3 In B R114 1J 2W PGND R115 C136 MTD1361/F OPEN PGND C137 OPEN PGND (4-D3) (SPFMT2) (4-D3) (SPFMT0) (4-D3) (SPFMT3) (4-D3) (SPFMT1) AR-168N/168L CIRCUIT DIAGRAM 14 - 11...
Page 145 Toner Motor Driver C128 C129 10u/35V 0.1u/50V PGND IC32 R105 PSAVE (11-E1) OUT1 (11-D1) (4-D3) (TM) TMB_O (11-A1) OUT2 (11-D1) (4-D3) (TM_) TMA_O (11-A1) VREF (11-E1) R106 R112 R113 47kJ 47kJ PGND BA6920FP PGND AR-168N/168L CIRCUIT DIAGRAM 14 - 12...
Page 146 0.1u/50V OUT 3 INT5V PGND C189 C190 KIA7805 47u/35V 0.1u ZJSR5101-223 ZJSR5101-223 (10-A4) 12VIN (10-B4) 3.3VIN VCC3 C191 C193 C192 C194 47u/25V 0.1u 22u/16V 0.1u EN5V C195 C197 C196 C198 22u/16V 0.1u 22u/16V 0.1u AR-168N/168L CIRCUIT DIAGRAM 14 - 13...
Page 147 (10-E4) (PSW) (1-D2) R157 (11-B4) CED1 (CED1) (4-A4) R158 (11-D2) CED2 (CED2) (4-A3) R159 (10-E4) DRST (DRST) (4-A4) VCC3 C199 C200 C201 C202 C203 C204 1000p 1000p 1000p 1000p 1000p 1000p KDS226 KDS226 KDS226 AR-168N/168L CIRCUIT DIAGRAM 14 - 14...
Page 148 TRST_L TRST_L TRST_L VSS_IO TRST_L VSS_IO R233 OPEN TEST_MODE0 R234 OPEN TEST_MODE1 R235 4.7KJ VSS_CORE R236 4.7KJ VSS_CORE VSS_CORE VSS_CORE VSS_CORE VSS_CORE VSS_CORE C300 XOUT VSS_CORE 32.3022MHz R237 XOUT OA-982 CLK_EXT (8-A3) CLK_EXT C306 AR-168N/168L CIRCUIT DIAGRAM 14 - 15...
Page 149 BR115 10kJX4 C297 C298 C299 _SDRAM_DATA1 _SDRAM_CS0_L 0.1U 0.1U 0.1U _SDRAM_DATA2 _SDRAM_DATA3 C265 _SDRAM_DATA4 BR116 10kJX4 _SDRAM_DATA5 _SDRAM_DATA6 _SDRAM_CKE _SDRAM_DATA7 _SDRAM_DATA8 BR117 10kJX4 _SDRAM_DATA9 _SDRAM_DATA10 _SDRAM_DATA11 _SDRAM_DATA12 BR118 10kJX4 _SDRAM_DATA13 _SDRAM_DATA14 _SDRAM_DATA15 R238 4.7KJ AR-168N/168L CIRCUIT DIAGRAM 14 - 16...
Page 150 /OA_RST /RESET (8-A3) PB_NCS3 (8-A2) INT_USBD (8-A3) (13-C3) PB_NAE0 (8-A2) DT_REQB DREQ NC7S08M5X (8-A2) DT_ACKB DACK PB_NOE (13-C3) (8-A3) PB_NOE PB_NWE (8-A3) (13-C3) PB_NWE VCC3 IC43 ISP1581 R303 R304 100P NC7S04M5X R305 NM MLF1608-J AR-168N/168L CIRCUIT DIAGRAM 14 - 17...
Page 151 R290 10KJ 10KJ C329 XTAL1 (8-A2) USBVBUS 12MHz XTAL2 C330 BLM21PG600SN1 Vreg(3.3) R293 1.5KJ CN33 SHIELD L15 DLW21SN900SQ2 RREF UBR23(ACON) R301 NM USB2.0 DEV1 R302 12KF C331 0.01U BLM21PG600SN1 FGND_UD2 AGND_UD2 AGND_UD2 MLF1608-J FGND_UD1 AR-168N/168L CIRCUIT DIAGRAM 14 - 18...
Page 152 MCU PWB (Connector section 1) To Power unit INT5V INT24V (5-C4) /BIAS (5-C4) (5-C4) /GRIDL (5-C4) 3.3VIN (7-B2) EN5V /POFF (5-C1) (7-A2) 12VIN (7-A2) (4-C4) (5-C3) HLOUT (5-D2) B24B-PHDSS-B C207 C208 0.1u/50V 0.1u/50V PGND PGND AR-168N/168L CIRCUIT DIAGRAM 14 - 19...
Page 153 (4-C4) KEYIN (PSL) (OP_CLK) C205 (OP_LATCH) (OP_DATA) 1000p (SELIN1) (SELIN2) (SELIN3) (LCDDB7) (LCDDB6) (LCDDB5) (LCDDB4) (LCDE) (LCDRS) (BZR) (KEYSC1) (KEYSC2) (KEYSC3) 28FE-BT-VK-N To Mirror motor (6-A4) OUT_A+ (6-A4) OUT_B+ (6-A4) OUT_A- OUT_B- (6-A4) B4B-PH-K-R AR-168N/168L CIRCUIT DIAGRAM 14 - 20...
Page 154 MCU PWB (Connector section 3) To Mech. COUNTER /MCNT B3B-PH-K-S To Cover open detect R318 150J R177 1/4W 4.7kJ KDS226 CN14 R178 (4-A3) (SDOD) C221 B3B-PH-K-S 1000p (White) For SPF/DSPF Model Only AR-168N/168L CIRCUIT DIAGRAM 14 - 21...
Page 155 11/14 To 2nd. cassette CN18 (5-C3) /CPFS2 (7-C4) PPD3 (7-C4) (7-C1) CED2 B14B-PHDSS-B PGND AR-168N/168L CIRCUIT DIAGRAM 14 - 22...
Page 156 AR-168N/168L CIRCUIT DIAGRAM 14 - 23...
Page 157 AR-168N/168L CIRCUIT DIAGRAM 14 - 24...
Page 158 AR-168N/168L CIRCUIT DIAGRAM 14 - 25...
Page 159: Operation Pwb
2. OPERATION PWB AR-168N/168L CIRCUIT DIAGRAM 14 - 26...
Page 160 AR-168N/168L CIRCUIT DIAGRAM 14 - 27...
Page 161 AR-168N/168L CIRCUIT DIAGRAM 14 - 28...
Page 162: Power Supply
3. POWER SUPPLY POWER SUPPLY (120V/127V) AR-168N/168L CIRCUIT DIAGRAM 14 - 29...
Page 163 AR-168N/168L CIRCUIT DIAGRAM 14 - 30...
Page 164: Actual Wiring Diagram
4. ACTUAL WIRING DIAGRAM (1) MCU SECTION (1/3) AR-168N/168L CIRCUIT DIAGRAM 14 - 31...
Page 165 (2) RSPF/SPF SECTION (Optional) (2/3) AR-168N/168L CIRCUIT DIAGRAM 14 - 32...
Page 166 (3) I/F & FAX (Optional) SECTION (3/3) AR-168N/168L CIRCUIT DIAGRAM 14 - 33...
Page 167: Firmware Download Procedures
2) Connect machine and the PC with a USB cable. (Connect it to the USB port on the main unit without fail. 3) PC side: Boost "Maintenance.exe" and select "AR-168/M150/M155 series" in the Select Model menu. AR-168N/168L FIRMWARE DOWNLOAD PROCEDURES 15 - 1...
Page 168 PLETE!" is displayed, download is completed. Turn OFF the power of the machine, and disconnect the USB cable. 12) Terminate the integration maintenance program, and turn ON the machine again. Download is completed with the above procedures. AR-168N/168L FIRMWARE DOWNLOAD PROCEDURES 15 - 2...
Page 169: Version Acquisition Procedures
(left key) together, and turn on the power simultaneously.) 2) Connect the machine and the PC with a USB cable. 3) PC side: Boost "Maintenance.exe" and select "AR-168/M150/M155 series" in the "Select Model" menu. AR-168N/168L FIRMWARE DOWNLOAD PROCEDURES 15 - 3...
Page 170: Eeprom Data Acquisition Procedure
(left key) together, and turn on the power simultaneously.) 2) Connect the machine and the PC with a USB cable. 3) PC side: Boot "Maintenance.exe" and select "AR-168/M150/M155 series" in the "Select Model" menu. AR-168N/168L FIRMWARE DOWNLOAD PROCEDURES 15 - 4...
Page 171: Installing Procedures
9) PC side: When upload is completed, the complete message is dis- played. With the above procedure, the EEPROM data acquisition is completed. Data acquired by the EEPROM data acquisition procedure are saved in a file with extension of .eep. AR-168N/168L FIRMWARE DOWNLOAD PROCEDURES 15 - 5...
Page 172 3) Check that the Found New Hardware Wizard is displayed, and press <Next> button. 7) When the following display is shown, press [Continue Anyway] but- ton. 4) Select [Search for a suitable driver for my device] and press <Next> button. AR-168N/168L FIRMWARE DOWNLOAD PROCEDURES 15 - 6...
Page 173 7) Specify the folder which includes the maintenance tool driver Press <Finish> button. (Mainte.inf), and press <Open> button. 11) Restart the PC. With the above procedures, installation (on Windows 2000) of the inte- gration maintenance program is completed. AR-168N/168L FIRMWARE DOWNLOAD PROCEDURES 15 - 7...
Page 174 With the above procedures, installation (on Windows ME) of the inte- gration maintenance program is completed. 5) Select the folder which includes maintenance tool driver (Mainte.inf), and press <OK> button. (Suppose that the driver is included in C:\MaintenanceTool\Drivers\Win9xMe folder.) AR-168N/168L FIRMWARE DOWNLOAD PROCEDURES 15 - 8...
Page 175 LEAD-FREE SOLDER The PWB’s of this model employs lead-free solder. The “LF” marks indicated on the PWB’s and the Service Manual mean “Lead-Free” solder. The alphabet following the LF mark shows the kind of lead-free solder. Example: <Solder composition code of lead-free solder> Solder composition Solder composition code Solder composition...
Page 176 CAUTION FOR BATTERY REPLACEMENT (Danish) ADVARSEL ! Lithiumbatteri – Eksplosionsfare ved fejlagtig håndtering. Udskiftning må kun ske med batteri af samme fabrikat og type. Levér det brugte batteri tilbage til leverandoren. (English) Caution ! Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type recommended by the manufacturer.
Page 177 COPYRIGHT 2005 BY SHARP CORPORATION All rights reserved. All rights reserved. All rights reserved. Printed in Japan. Printed in Japan. Printed in Japan. No part of this publication may be reproduced, No part of this publication may be reproduced, No part of this publication may be reproduced,...

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Ar-168l

Sharp AR-168N Service Manual

[1] General

Specifications

Consumable Parts

External Views and Internal Structures

Unpacking and Installation

Copy Process

Operational Descriptions

Disassembly and Assembly

[9] Adjustments

Test Command, Trouble Codes

Maintenance

User Program

Electrical Section

Circuit Diagram

Firmware Download Procedures

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Table of Contents