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Epson TM-U220 Series Service Manual
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Epson TM-U220 Series Service Manual

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Confidential

Service manual

TM-U220 Series
(Type-B/Type-D)
Issued date
,
,
Issued by
English
404460800
EPSON

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Summary of Contents for Epson TM-U220 Series

  • Page 1: Service Manual

    Confidential Service manual TM-U220 Series (Type-B/Type-D) Issued date Issued by English 404460800 EPSON...
  • Page 2 EPSON Printed in Japan SEIKO EPSON CORPORATION...
  • Page 3 On the earlier of (a) termination of your relationship with Seiko Epson, or (b) Seiko Epson’s request, you must stop using the confidential information. You must then return or destroy the information, as directed by Seiko Epson.

  • Page 4: Table Of Contents

    Confidential Contents For Safe Repair and Maintenance Work ........... . iv Key to Symbols .
  • Page 5 Confidential TM-U220 (Type B/Type D) Service Manual Setting the autocutter ..............4 Platen Gap Adjustment .

  • Page 6: For Safe Repair And Maintenance Work

    Confidential For Safe Repair and Maintenance Work Key to Symbols The symbols in this manual are identified by their level of importance, as defined below. Read the following carefully before handling the product. WARNING: You must follow warnings carefully to avoid serious bodily injury. CAUTION: Observe cautions to avoid minor injury to yourself, damage to your equipment, or loss of data.

  • Page 7: Safety Precautions On Maintenance/Repair/Inspection

    TM-U220 (Type B/Type D) Service Manual Safety Precautions on Maintenance/Repair/Inspection WARNING: Be sure to use the EPSON-supplied fuse on the circuit board. Use of the other fuse may result in fire. Remove the power cord and all other cables from this product before disassembly or reassembly to prevent electrical shock.

  • Page 8: About This Manual

    Confidential About This Manual Aim of the Manual This manual was created to provide the information on printer maintenance and repair required by technicians who handle this work. Manual Content The manual is made up of the following sections Chapter 1 Product Overview Describes the product overview.

  • Page 9: Chapter 1 Product Overview

    UB-S01 (RS-232) Interface type UB-P02II (IEEE1284 (bidirectional parallel)) Use an EPSON-approved interface board EPSON UB universal interface board options The full cut is a setting available from the dealer. Full cut should be selected only Type B only: when the printer is installed horizontally.
  • Page 10 Confidential 1-2 Product Overview Rev. A...

  • Page 11: Chapter 2 Repair Guide

    Confidential TM-U220 (TypeB/TypeD) Service Manual Chapter 2 Repair Guide This chapter gives instructions to complete repair of the product. Follow the process in this section for repair. Repair Process Outline of repair Check each item before and after repair, as shown in the following flowchart. This chapter explains the operations to confirm the “normal state”...

  • Page 12: Self-Test

    Confidential Printer status checks Operation Normal printer operation When a problem occurs POWER LED does not light. (See page 3-3) Power LED light comes on. ERROR LED light. (See page 3-3) Power on. Mechanical initializing operation occurs. ERROR LED flashes. (See page 3-4) ERROR LED light is off.
  • Page 13 Confidential TM-U220 (TypeB/TypeD) Service Manual Printer status print Normal printout result Explanation Version information Main program version Boot program version Interface classification Interface information Receive buffer capacity *1) Busy release conditions for receive buffer full *2) Busy condition *3) Resident character *4) 7Paper roll width *5) Dot spacing between characters *6) 9Characters per line *7)
  • Page 14 Confidential Roll pattern Normal print result Explanation Black (6 lines) Red (6 lines) Red (6 lines) Paper feeds 2 lines. Paper is fed to the position where the user can see the ending message at left. 2-4 Repair Guide Rev. A...

  • Page 15: Service Utility

    Confidential TM-U220 (TypeB/TypeD) Service Manual Service Utility Using the service utility, you can confirm the printer status and change settings. The following section explains the operation for confirming the printer status. * To use the repair functions in the service utility, a password is required. Refer to the manual supplied with the service utility for the password.
  • Page 16 Confidential Self-test Mode 2: Outputs the same results as the self-test printout of the roll pattern. Real-time status: Lets you confirm sensor operations, such as cover open/close, in real time. Printer status: Lets you read and set the printer values collectively. Also, you can save the settings to a file, read the set values in the file, and the display the default state.
  • Page 17 Communication function: You can confirm that communication with the printer is enabled/disabled. Setting function: Reads and prints on the status sheet the status settings for EPSON NV memory, memory switches, communication conditions, and customized value. Receipt print function: Prints patterns to confirm print operations and print quality.
  • Page 18 Confidential 1. Sensor to test is indicated 2. Operate the printer in accordance with message 3. Click If you cannot test When the sensor detects the printer operation correctly, OK is displayed. When the sensor is not installed (depending on the printer model), you can skip with the Skip button. Test results are OK when the tests confirm the normal operation of the sensors.
  • Page 19 Normal print result Explanation Execution date is printed. Execution time is printed. “EPSON” is printed. “TM-U220” is printed. Serial no. for the product is printed. *1) Graphic pattern is printed. Checks for dot missing. (Refer to“Dots are missing continuously.” on page 3-12 ) ANK characters are printed.

  • Page 20: Status Print

    Normal print result Explanation Execution date is printed. Execution time is printed. “EPSON” is printed. “TM-U220” is printed. Serial no. for the product is printed. *1) Setting status of memory switch is printed. *2) Setting status of customize value is printed. *3) Partial cut is performed.
  • Page 21 Definition of the bit image data for NV memory is printed. *1) Definition of data for user NV memory is printed. *2) Information of EPSON NV memory is printed. It is changeable with the printer status. *3) Manufacturer name Model name Product serial no Definition of data for space page is printed.
  • Page 22 Normal print result Explanation Execution date is printed. Execution time is printed. “EPSON” is printed. “TM-U220” is printed. Serial no. for the product is printed. Execution status of all function test is printed. Test result of sensor operation is printed. *1)

  • Page 23: Chapter 3 Troubleshooting

    Confidential TM-U220 (TypeB/TypeD) Service Manual Chapter 3 Troubleshooting Preparations for Troubleshooting Before troubleshooting, check and, if necessary, correct the following points. Paper is jammed inside the printer CAUTION: Be sure not to touch the manual cutter. Otherwise you may cut your finger. 1.

  • Page 24: Before Servicing

    Confidential 3. Return the cutter blade to the normal position by rotating the autocutter knob in the direction of the arrow. When it is returned to the normal position, a lever comes in the center of hole in the autocutter frame. Hole Lever Cutter cover...

  • Page 25: Symptoms And Solutions

    Confidential TM-U220 (TypeB/TypeD) Service Manual Symptoms and Solutions Symptoms when the power is On POWER LED does not light. Table 3-1 Power LED does not light Probable part/probable cause Checkpoints Action to correct the problem Check the connections. Make sure the Plug in the connector.
  • Page 26 Confidential ERROR LED flashes Table 3-3 ERROR LED flashes Probable part/probable cause Checkpoints Action to correct the problem Check for a paper jam around Remove any paper jam. Completed the carriage. Make sure there is if operation is normal. no paper jam. Check the tension of the Adjust the tension of the carriage belt carriage belt (507).
  • Page 27 Confidential TM-U220 (TypeB/TypeD) Service Manual Table 3-3 ERROR LED flashes Probable part/probable cause Checkpoints Action to correct the problem Check the connection of the I/F circuit board unit (122). Make Connect the I/F circuit board unit sure the connector is plugged (122).
  • Page 28 Confidential PAPER OUT LED lights Table 3-4 Paper OUT LED lights Probable part/probable cause Checkpoints Action to correct the problem Check the roll paper. Make sure it is Replace the roll paper. Completed if Roll paper loaded correctly. Make sure enough the PAPER OUT LED turns off.
  • Page 29 Confidential TM-U220 (TypeB/TypeD) Service Manual When initializing operation only is executed Table 3-5 Only the initializing operation occurs Probable part/probable cause Checkpoints Action to correct the problem For the serial I/F, check the reset function setting for pins # 6 and # 25. If the I/F Disable the reset function with the DIP DIP switch setting cable is connected and the reset...
  • Page 30 Confidential Table 3-6 The printer does not print Probable part/probable cause Checkpoints Action to correct the problem Check the connectors. Make sure they are plugged in securely: Plug in the connectors. Completed if Paper feed motor sub assembly (1046) operation is normal. Connector (CN8) on the main circuit PF (paper feed) lead wire set board unit (201)
  • Page 31 Confidential TM-U220 (TypeB/TypeD) Service Manual Paper is fed, but characters are not printed. Table 3-7 Paper is fed, but characters are not printed Probable part/probable cause Checkpoints Action to correct the problem Check the ribbon mounting. Make sure Load the ribbon cassette correctly. it is installed correctly.
  • Page 32 Confidential Table 3-8 ERROR occurs during printing Probable part/probable cause Checkpoints Action to correct the problem Check the parts on the main circuit board unit (201) for Replace the main circuit board unit damage. Make sure the (201). Completed if operation is following parts look normal.
  • Page 33 Confidential TM-U220 (TypeB/TypeD) Service Manual Paper is not cut correctly. Table 3-9 Paper is not cut correctly Probable part/probable cause Checkpoints Action to correct the problem Check the setting of DSW 2-2. OFF: Autocutter is disabled. ON: Autocutter is enabled. Switch DSW 2-2 to ON.
  • Page 34 Confidential Print result is not normal. Print is light or irregular. Table 3-11 Print is light or irregular Probable part/probable cause Checkpoints Action to correct the problem Check the ribbon mounting. Make Install the ribbon cassette correctly. sure it is installed correctly. Completed if printing is normal.
  • Page 35 Confidential TM-U220 (TypeB/TypeD) Service Manual Line spacing is irregular. Table 3-14 Line spacing is irregular Probable part/probable cause Checkpoints Action to correct the problem Load roll paper that meets Roll paper is inserted Check the roll paper. Make sure it meets specifications correctly.

  • Page 36: Paper Jam Occurs

    Confidential Printed contents are not normal. Table 3-16 Abnormal printing content Probable part/probable cause Checkpoints Action for the problem Check the version number. (See page 4-2.) Update the firmware. Completed Firmware version Make sure it is the same as the version used if printing is normal.

  • Page 37: Symptoms When The All Function Test Is Executed

    Confidential TM-U220 (TypeB/TypeD) Service Manual Table 3-17 Paper jam occurs Probable part/probable cause Checkpoints Action to correct the problem Clean, so that both paper guide Check operation. Make sure the 2 rollers rollers (1045) rotate correctly. rotate smoothly. Completed if operation is normal. Paper guide rollers (1045) Replace the mechanism Check for defects.
  • Page 38 Confidential Communication test fails Table 3-19 Communication test fails Probable part/probable cause Checkpoints Action to correct the problem Check the communication settings. Make Set the correct communication sure the settings printed by the self-test are Communication condition settings. Completed if operation is the same as the communication settings normal.
  • Page 39 Check the printer information setting. Make sure the following information is printed: Set again using the printer status Printer information setting Maker name: “EPSON” function. Completed if printing is Printer name: ”TM-U220” normal. Serial No: Serial number on the manufacturer’s plate Check the memory switch setting.
  • Page 40 Confidential Cannot pass are of the tests for a sensor. Cannot pass the test for the NE (near-end) sensor. Table 3-22 Test for the NE sensor fails Probable part/probable cause Checkpoints Action to correct the problem Check connection. Ensure cable is plugged in.
  • Page 41 Confidential TM-U220 (TypeB/TypeD) Service Manual Cannot pass the test for the Roil Cover. Table 3-24 Paper roll cover test fails Probable part/probable cause Checkpoints Action to correct the problem Check the setting of MSW 8-5. If the setting is OFF, status is not sent from the roll Change the setting of MSW 8-5 to Memory switch setting cover, but the RE sensor is changed.

  • Page 42: Symptoms For Other Operations

    Confidential Symptoms for other operations Parts do not move smoothly Cannot open and close he ribbon cover smoothly. Table 3-27 Opening and closing he ribbon cover is not smooth Probable part/probable cause Checkpoints Action to correct the problem Replace the ribbon cover (109). Confirm the condition of 2 projections on Ribbon cover (109) Completed if the cover opens and...

  • Page 43: Test Points On The Main Circuit Board Unit

    Confidential TM-U220 (TypeB/TypeD) Service Manual Test Points on the Main Circuit Board Unit Table 3-29 Test points on the main circuit board unit Test Component Correct Power supply Pin name Status connector connector value Semiconductor switch on - U9,pin#3 or pin#4 5V Power supply Semiconductor switch off - Q1,#5 or #6 or #7...

  • Page 44: Resistance Values Of Printer Mechanism Components

    Confidential The locations of the main elements on the main circuit board unit are identified below. Resistance Values of Printer Mechanism Components Part Name Internal Element Function Where to Check Normal Status Approx. 7.2 Ω Carriage motor 4-phase stepping motor Head carriage Remove the cable connector (1034)

  • Page 45: Lubricants

    The EPSON selection of lubricants prescribed for use with the printer is based on the results of such research. The prescribed EPSON lubricants are available in 40 cc (40 gr) metal cans or plastic containers (the smallest unit of supply).

  • Page 46: Notes For Assembly And Disassembly

    Confidential Please use the grease indicated below for lubrication. Items Parts cord Note Grease 1041442 O-13 G-15 1080605 1080619 G-36 Please use the item indicated below for operaton the printer. Items Parts cord Note AC adapter 2081786 Ribbon cassettes S0152440000 ERC-38(B) S0152450000 ERC-38(B/R)

  • Page 47: Shortest Route For Disassembly Of Major Parts

    Confidential TM-U220 (TypeB/TypeD) Service Manual Shortest Route for Disassembly of Major Parts The next diagram shows the shortest disassembly route of major parts. Perform disassembly by following this diagram as well as explanations for the target item. How to use the key map: 1.

  • Page 48: Disassembling The Tm-U220B/Tm-U220D

    Confidential Disassembling the TM-U220B/TM-U220D Exploded diagram 4-4 Disassembly and Assembly Rev. A...
  • Page 49 Confidential TM-U220 (TypeB/TypeD) Service Manual Disassembly Procedures Disassem Part names Disassembly procedures bly steps Cover,roll paper assembly Open the Cover,roll paper assembly (119). (119) Push and take out the Shaft,lever open (1001), remove the Cover,roll paper assembly (119). When removing the cover, roll paper assembly, release the three hooks.

  • Page 50: Disassembling The Mechanism Assembly

    Confidential Disassembling the Mechanism Assembly Exploded diagram 4-6 Disassembly and Assembly Rev. A...

  • Page 51: Disassembly Procedures

    Confidential TM-U220 (TypeB/TypeD) Service Manual DIsassembly Procedures Disassembly Part names Assembly procedures steps Platen rotation frame 1 With Platen rotation frame 1 unit closed, remove E-ring 3 unit (1005) (E01). Release rotation springs R and L from the hooks. Remove E-ring 4 (E03), and remove the rotation shaft (1009). Remove the platen rotation frame 1 unit (1005).

  • Page 52: Disassembling The Carriage Unit

    Confidential Disassembling the Carriage Unit Exploded diagram 4-8 Disassembly and Assembly Rev. A...
  • Page 53 Confidential TM-U220 (TypeB/TypeD) Service Manual DIsassembly Procedures Reassem Part names Assembly procedures blysteps Ribbon assembly frame Remove the ribbon frame spring (1022). (519) Remove 1 E-ring 4 (E03), and remove the ribbon frame assembly (519). After this, you can remove the print head unit (503). Lubricate the carriage sub assembly (1025) with O-13.

  • Page 54: Disassembling The Platen Rotation Frame1 Unit

    Confidential Disassembling the Platen Rotation Frame1 Unit Exploded diagram 4-10 Disassembly and Assembly Rev. A...
  • Page 55 Confidential TM-U220 (TypeB/TypeD) Service Manual DIsassembly Procedures Reassembly Part names Assembly procedures steps Paper feed roller plate B Remove 2 screws (501), and remove the paper feed roller (511) plate B (511). Cover open lever (1052) Remove 1 screw (S10), and remove the cover open lever (1052).

  • Page 56: Disassembling The Roll Paper Guide / Roll Paper Holder

    Confidential Disassembling the Roll Paper Guide / Roll Paper Holder Exploded diagram 4-12 Disassembly and Assembly Rev. A...
  • Page 57 Confidential TM-U220 (TypeB/TypeD) Service Manual DIsassembly Procedures Apply the below procedure for disassembling the Roll Paper Holder. Reassembly Part names Assembly procedures steps Paper end assembly (514) Remove the paper end assembly (514). When replace the paper end assembly (514), you need to pull out the wire attached on the HP circuit board.(See page 2-20.) Roll paper holder (1010) Remove 2 screws (S05), and remove the roll paper holder...

  • Page 58: Disassembling The Autocutter Unit / Fixed Blade Holder Assembly / Manual Cutter Holder Assembly

    Confidential Disassembling the Autocutter unit / Fixed Blade Holder Assembly / Manual Cutter Holder Assembly Exploded diagram 4-14 Disassembly and Assembly Rev. A...
  • Page 59 Confidential TM-U220 (TypeB/TypeD) Service Manual DIsassembly Procedures Apply the below procedure for disassembling theAutocutter Unit. Reassembly Part names Assembly procedures steps Paper end assembly Remove the paper end assembly (514). (514) Lubricate the paper feed roller plate (1051) with G-36. Lubricate the cutter frame assembly (114) with G-36.

  • Page 60: Reference Of Disassembly And Assembly

    Confidential of Disassembly and Assembly Reference Method for Removing the Roll Paper Cover Assembly Push and take out the shaft from the inside of the frame, and release the hook in three positions as following. Shaft,lever open (1001 Method for Removing and Attaching the Rotation Spring L and R When removing the springs,push the springs to inside to release the each hook as following.
  • Page 61 Confidential TM-U220 (TypeB/TypeD) Service Manual Method for Attaching the Paper Hold Spring Put the paper hold spring on the Fixed blade holder as following. Method for Attaching the Fixed Blade Holder Assembly and Manual Cutter Holder Spring Hole Holder,fixed blade assembly Hook Method for Attaching the Cover Open Assembly When attaching the Cover open assembly to...
  • Page 62 Confidential Method for Leading the Autocutter Unit Wires guard tube and lead wire guard tube and lead wire Be sure that there is a certain slack in the cable as following. Cable of Autocutter unit 4-18 Disassembly and Assembly Rev. A...
  • Page 63 Confidential TM-U220 (TypeB/TypeD) Service Manual Method for removing the Shaft Holder Adjustmen Roller When removing the shaft holder adjustment roller, you need to rotate it as following. Shaft holder adjustment roller Method for Attaching the Carriage Belt Carriage belt Carriage,sub assembly The method of Attaching the Head FFC When attaching the FFC to the frame, be sure that the FFC is thrown as following.
  • Page 64 Confidential Method for Attaching the Carriage Sub Assembl When assembling the carriage unit, be sure that the Carriage sub assembly is attached to the Plate,carriage guide as following. When removing the Shaft holder,adjustment roller, rotate it as following. Plate,carriage guide Shaft holder, adjustment roller Carriage sub assembly Method for Attaching the HP Board Assembly...
  • Page 65 Confidential TM-U220 (TypeB/TypeD) Service Manual Method for Attaching the Roll Paper GUide Unit Guide roll paper unit wires Method for Leading Each Cable The below illustration indicates the cable leading. Wires of the Cover open assembly (515) Wires of the Motor pape feed sub assembly (1046 Wires of the HP board assembly (518)
  • Page 66 Confidential Method for Attachng Each Cable to the Main Circuit Board CN2: Connecting the cable of the Auto cutter unit (113) CN4: Connecting the cable of the Hp board assembly (518) CN6: Connecting the cable of the Lead wire set, NE (1096) CN7: Connecting the cable of the Motor,carriage sub assembly (10 CN8: Connecting the cable of the Lead wire set,PF (1047) CN10: Connecting to CNC3 with cable.

  • Page 67: Reference Of Lubrication

    Confidential TM-U220 (TypeB/TypeD) Service Manual of Lubrication Reference Method for Lubrication Some points of lubrication is indicated in below. See Chapter 4 about the other points. Lubricate to the contact points between the carriage shaft and carriage Carriage sub assembly Carriage shaft Lubricate to the point of the carriage sub assembly with G-36.
  • Page 68 Confidential 4-24 Disassembly and Assembly Rev. A...

  • Page 69: Chapter 5 Adjustment And Setting

    Confidential TM-U220 (TypeB/TypeD) Service Manual Chapter 5 Adjustment and Setting Setting the Installation Position for the Roll Paper Near-End Detector This printer allows you to change the installation position for the roll paper near-end detector using the following procedure. 1. Loosen the detector adjustment screw with a coin or similar tool. Turn the screw at least 3 or 4 times.

  • Page 70: Adjusting The Detecting Point Of The Roll Paper Near-End Detector

    Confidential Adjusting the Detecting Point of the Roll Paper Near-End Detector Below are two reasons for the roll paper to require an NE detector adjustment. To adjust the location of detection for the diameter of the roll paper core. To adjust the amount of remaining paper. 1.

  • Page 71: Setting The Paper Roll Width

    Confidential TM-U220 (TypeB/TypeD) Service Manual Setting the Paper Roll Width The TM-U220 accommodates 76 mm {3"},69.5 mm {2.74"},57.5 mm {2.26"} wide paper rolls with no adjustments. For the each wide rolls, use the roll paper spacer included with the printer. Note: The default paper width setting value saved in NV memory is 76 mm.

  • Page 72: Setting The Autocutter

    Confidential Setting the autocutter The autocutter action on the TM-U220 can be either “partial cut“ or “full cut.“ The procedure to change from one to the other is described below. Note: If the cutting type is changed from partial cut to full cut after the printer has been used, the printer may not be reliable because the wear-out level of the cutter blade differs.

  • Page 73: Platen Gap Adjustment

    Confidential TM-U220 (TypeB/TypeD) Service Manual Platen Gap Adjustment Adjust the platen gap on the completed TM-U220 printer unit. Use the following steps to adjust the platen gap for the printer.Adjust the printer’s platen gap when you have performed any one of the following.

  • Page 74: Carriage Belt Tension Adjustment

    Confidential Carriage Belt Tension Adjustment 1. Loosen the screw of the plate, belt tension assembly, hook the end of the tension gauge to the hole of the plate, belt tension assembly, adjust the tension properly, and tighten with the screw. 2.

  • Page 75: Adjust Various Setting

    Confidential TM-U220 (TypeB/TypeD) Service Manual Adjust various setting This printer is able to be adjusted for the items below: DIP switch (communication condition, busy condition, print column, receive buffer capacity, etc...) Memory switch (serial communication conditions, roll paper width, cover open status handling, etc...) Roll paper width (76mm / 69.5mm / 59.5mm) Adjusting the spacer &...
  • Page 76 Confidential Look at the numbers and letters in the area indicated in the illustration. If the last letters are “US”, use the “US” tables below. If the last letters are “STD”, use the “STD” tables. Note: The functions of the switches of are shown in the following sections. (The default setting is indicated with color net.) The DIP switch function of US is little different from the STD.
  • Page 77 Confidential TM-U220 (TypeB/TypeD) Service Manual When the letters are US Serial model (DIP Switch 1) (DIP Switch 2) SW Function SW Function Data receive error Ignored Prints “?” Print column 42/35 40/33 Receive buffer 40 bytes 4 KB Reserved Type B Type D capacity (Auto cutter enable/ disable )

  • Page 78: Memory Switches

    Confidential Memory Switches This printer has “Memory switch“ set which is software switches. Memory switch set has “Msw 2,” “Msw 8,” “Customize value,” “Serial communication condition.” “Memory switch setting utility” can change the Memory switch set to ON or OFF as shown in the table below (default: all OFF): Note: The Memory swich is available to be changed by the method as following.
  • Page 79 Confidential TM-U220 (TypeB/TypeD) Service Manual Note: Msw 8-5: When Off is selected, a bit of the "roll paper end sensor" in each status that is transmitted from the printer is changed every time the roll paper cover is open or closed. When On is selected, a bit of the "roll paper cover open / close"...

  • Page 80: Memory Switch Setup Mode

    Confidential Memory Switch Setup Mode The following items are specified in the memory switch setup mode: Basic Serial communication condition (Serial communication) Receive buffer full release condition (Msw 8-7) Roll paper width (Customize value) Cover open status (Msw 8-5) Note: All new settings will be lost if the power supply is turned off during the memory switch setup mode.
  • Page 81 Confidential TM-U220 (TypeB/TypeD) Service Manual Press the FEED button the number of times required to select the desired “Serial interface settings” used for transmission conditions. Press FEED button Setting selected 0 ~ 3 times: No change 4 times: 19200 bps 5 times: 9600 bps 6 times:...
  • Page 82 Confidential Receive buffer full release condition Press the FEED button the number of times required to select the desired receive buffer full release condition setting. Press FEED button Selecting paper width 0 times: No change 1 time: 256 bytes remain (Msw 8-7: Off) 2 times: 138 bytes remain (Msw 8-7: On) 3 or more times:...

  • Page 83: Chapter 6 Preparation For Shipment

    Confidential TM-U220 (Type B/Type D) Service Manual Chapter 6 Preparation For Shipment Follow the below item before sending the printer back to the customer. Inspection and Maintenance P e r f o r m i n s p e c t i o n a n d m a i n t e n a n c e p r o c e d u r e s d e s c r i b e d b e l o t h e y e a r s o f t r o u b l e - f r e e o p e r a t i o n f o r w h i c h i t i s d e s i g n e d .

  • Page 84: Removing Dirt Paper Chips And Dust From Inside The Printer

    Installing or Replacing the Ribbon Cassette EPSON recommends the use of genuine EPSON ribbon cassettes. Ribbon cassettes not manufactured by EPSON may cause damage to your printer that is not covered by EPSON’s warranties. To install the ribbon cassette for the first time or to replace a used ribbon, follow the steps below: 1.

  • Page 85: Appendix Parts List

    Confidential TM-U220 (Type B/Type D) Service Manual Appendix Parts List Reference Number List Table A-1 Parts list by reference number Supplied Ref.# Name in service manual Name in price list Qty. Note as a part? Power switch cover Cover,power switch Shield tube M-T88 Shield tube M-T88 Manual cutter screw...
  • Page 86 Confidential Table A-1 Parts list by reference number Supplied Ref.# Name in service manual Name in price list Qty. Note as a part? Adjustment roller shaft holder Shaft holder,adjustment roller Carriage belt Carriage belt Roll paper plate holder Holder roll paper plate Paper feed middle gear Gear,paper feed middle Paper feed middle gear B...
  • Page 87 Confidential TM-U220 (Type B/Type D) Service Manual Table A-1 Parts list by reference number Supplied Ref.# Name in service manual Name in price list Qty. Note as a part? 1019 Paper guide plate D Plate,paper guide,D (Type D) 1020 Manual cutter holder assembly Holder,manual cutter assembly (Type D) 1021...
  • Page 88 Confidential Table A-1 Parts list by reference number Supplied Ref.# Name in service manual Name in price list Qty. Note as a part? 1054 Platen shaft Shaft,platen 1055 Platen release plate Plate,platen release 1056 Platen release spring Spring,platen release 1057 Gear plate D sub assembly Plate,gear,D sub assembly 1058...
  • Page 89 Confidential TM-U220 (Type B/Type D) Service Manual Table A-1 Parts list by reference number Supplied Ref.# Name in service manual Name in price list Qty. Note as a part? 1099 Ribbon cassette Ribbon cassette 1100 CBS-Tite screw,3X12,F/ZN C.B.S-TITE SCREW,3X12,F/ZN 1101 CBB-Tite screw,2X8,F/ZN C.B.B-TITE SCREW,2X8,F/ZN 1102...
  • Page 90 Confidential Appendix-6 Parts List Rev. A...

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