Home

Confidential

1. Supplied Ref Name in service manual Name in price list Qty asapart Note 1053 Platen frame Frame platen No 1054 Platen shaft Shaft platen No 1055 Platen release plate Plate platen release No 1056 Platen release spring Spring platen release No 1057 Gear plate D sub assembly Plate gear D sub assembly No 1058 Paper feed reduction gear 2 Gear paper feed reduction 2 No 1059 Paper feed reduction shaft 2 Shaft paper feed reduction 2 No 1060 Paper feed middle shaft Shaft paper feed middle No 1061 Bottom holding plate BM Holding plate bm bottom No 1069 S Push N 3 F Zn S Push N 3 F Zn No 1070 Plain washer Plane washer No 1071 Cutter cover sub assembly Cover cutter sub assembly No 1072 Drive gear sub assembly Gear drive sub assembly No 1073 Insulator plate assembly Plate insulator assembly No 1074 Platen Platen No 1075 Paper feed roller Paper feed roller No 1076 Platen assembly Platen assembly 1 No 1077 Belt tension plate assembly Plate belt tension assembly No 1078 Carriage Carriage No 1079 Base frame sub unit Frame base sub unit No 1080 Micro switch Micro switch No 1081 Ferrite core Ferrite core No 1082 Double adhesive tape Double adhesive tape 1 No 1083 Platen base Base platen No 1084 Roll paper cover BA Cover roll paper BA No 1085 Bottom assembly frame Frame bottom assembly No
2. Supplied Ref Name in service manual Name in price list Qty asapart Note 505 Belt drive pulley Pulley belt drive 2 Yes 506 Adjustment roller shaft holder Shaft holder adjustment roller Yes 507 Carriage belt Carriage belt Yes 508 Roll paper plate holder Holder roll paper plate Yes 509 Paper feed middle gear Gear paper feed middle Yes 510 Paper feed middle gear B Gear paper feed middle B Yes 511 Paper feed roller plate B Plate paper feed roller B Yes 512 Ribbon middle gear Gear ribbon middle Yes 513 Fixed blade Fixed blade Yes 513 Manual cutter Manual cutter Yes Type D 514 Paper end assembly Paper end assembly Yes 515 Cover open assembly Cover open assembly Yes 516 Ribbon take up gear sub Gear ribbon take up sub assembly Yes assembly 517 Ribbon drive plate sub assembly Plate ribbon drive sub assembly Yes 518 HP board assembly HP board assembly Yes 519 Ribbon frame assembly Frame ribbon assembly Yes 520 Operation label C Label operation C Yes 521 Head FFC FFC head Yes 522 Platen assembly1 Platen assembly 1 Yes 1001 Cover open lever shaft Shaft lever open No 1002 Window RP Window rp No 1003 Open lever Lever open No 1004 Bottom plate Plate bottom No 1005 Platen rotation frame 1 unit Frame platen rotation 1 unit No 1006 Rotation spring R Spring rotation R No 1007 Rotation spring L Spring rotation L No 1008 Rotat
3. Rev B Disassembly and Assembly 4 1 11 Please use the grease indicated below for lubrication Items Parts cord Note Grease 1041442 O 13 1080605 G 15 1080619 G 36 LI Please use the item indicated below for operaton the printer Items Parts cord Note AC adapter 2081786 Ribbon cassettes 50152440000 ERC 38 B 0152450000 ERC 38 B R 0152460000 ERC 38 P ores Ly Ly m or Assembly an IsSaSSeMPDIy For assembly reverse the disassembly procedures under Disassembly The symbol in the disassembly procedure indicates the item need to be checked The symbol in the disassembly procedure indicates the item need to lubricate CAUTION m m Wear a grounded wrist band when handling the internal circuit boards to prevent damage from static electricity When removing an internal circuit board place it on an anti static rubber sheet or similar surface to prevent damage from static electricity Be careful not to subject the circuit boards to shock or vibration because this may damage them Do not touch the circuit board or cable terminals with your hands to prevent contamination that may result in a malfunction Hold circuit boards only by their edges Always remove the power supply unit from the printer before working Power is flowing to the internal circuit boards even if you turn the printer off at the power supply switch You may damage the printer
4. LY Basic Serial communication condition Serial communication Receive buffer full release condition Msw 8 7 m I Roll paper width Customize value m Cover open status Msw 8 5 Q Note All new settings will be lost if the power supply is turned off during the memory switch setup mode Be sure to follow the proper procedure and turn the power off at the correct time Starting the memory switch setup mode Use the following procedure to start the memory switch setup mode 1 Open the roll paper cover 2 Turn the power on while pressing the paper FEED button 3 Press the FEED button twice while POWER ERROR and PAPER OUT LED are lighting 4 Close the cover The printer prints the enabled settings of the memory switches and instructions Follow the instructions to process the switch setup 5 Q Note In the memory switch setup the paper out LED may flashing The flashing time indicates The times of FEED button is pressed before the roll paper cover is close Ending memory switch setting mode Once the setting is performed the contents of the setting are stored Then the printer initializes When initialization is finished the printer returns to normal operating mode Selecting individual settings I Basic serial interface setting To select transmission conditions first choose Serial interface settings then select Data length handshake or parity 5 12 Adjustment and Setting Rev B
5. y Confirm the right status If no trouble is found consider the product to be normal and send it to the user s environment Troubleshooting Assembly disassembly y Adjustment setting Confirming the user s environment Confirm the printer s setting by using the service utility Confirming the printer status Confirm the status of the printer you are repairing Confirm that the power turns on off run the self test run all function tests with the service utility and check other items following the table below Perform the appropriate measures for the symptom Rev B Repair Guide 2 1 Confidential Printer status checks Operation Power on Normal printer operation Power LED light comes on Mechanical initializing operation occurs ERROR LED light is off When a problem occurs POWER LED does not light See page 3 3 ERROR LED light See page 3 3 ERROR LED flashes See page 3 4 PAPER OUT LED lights See page 3 6 Run the self test Refer to page 2 2 or operation Power LED light comes on Prints the printer status See page 2 3 Prints the roll pattern after the FEED button is pressed See page 2 3 Mechanical initialization occurs ERROR LED light is off Self test cannot be performed See page 3 6 Printing cannot be performed See page 3 7 The print result is not normal See page 3 7 A paper jam occurs See
6. Check the DIP switch settings printed Make sure the following items are same as the DIP Replace the main circuit board unit 201 Completed if printing is normal Check the resident character Make sure it is same as the character set used by the customer Update the firmware Completed if printing is normal Resident character Check if this error message is printed ERROR If so the multilingual font is not correct Please download the correct one Make sure the message above is not printed Update the firmware Completed if printing is normal If printing is not normal replace the main circuit board unit 201 Paper width Check the print item corresponding to the paper width Make sure the entire area of the paper width is printed Match the paper width setting to the paper width Completed if printing is normal Paper jam occurs Table 3 17 Paper jam occurs Probable part probable cause Roll paper is inserted incorrectly Check th specifications and is loaded correctly Checkpoints roll paper Make sure it meets Action to correct the problem Load roll paper that meets specifications correctly Completed if operation is normal Manual cutter 513 Check for defects Make sure you see no defects such as deformation Replace the manual cutter 513 Completed if operation is normal Paper hold rollers 1015 Check operation M
7. Switch DSW 2 2 to ON Completed if cutting is normal Full cut partial cut setting Check the full cut and partial cut setting Make sure the autocutter unit 113 is mounted in the correct position Mount the autocutter unit 113 in the correct position Completed if cutting is normal Fixed blade spring 1016 Check the spring power Make sure it has enough power to push the fixed blade 513 against the fixed blade holder 1017 Replace the fixed blade spring 1016 Completed if cutting is normal Cutter blade Check the fixed blade 513 Make sure it does not have any nicks Replace the fixed blade 513 Completed if cutting is normal Check the movable cutter blade on the cutter frame sub assembly 114 Make sure it does not have any nicks Replace the cutter frame sub assembly 114 Completed if cutting is normal Ribbon feed mechanism does not operate Table 3 10 Ribbon feed mechanism does not operate Probable part probable cause Ribbon cassette Checkpoints Check the mounting Make sure it is installed correctly Action to correct the problem Install the ribbon cassette correctly Completed if printing is normal Check the ribbon cassette itself Make sure the ribbon is fed by turning the tab Replace the ribbon cassette with a new one Completed if printing is normal Ribbon take up function Check the take up operation Be sure the f
8. on idential 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 4800 bps 7 times 2400 bps 8 times 1200 bps 9 or more times No change bps Indicates the number of transmitted bits per second bps 0 Data length handshake or parity Press the FEED button the number of times required to select the desired Data length handshake or parity setting used for transmission conditions Press FEED button Setting selected Data Length Handshake Parity 0 times No change 1 time 8 bits DTR DSR control No parity 2 times Even 3 times Odd 4 times XON XOFF control No parity 5 times Even 6 times Odd 7 times 7 bits DTR DSR control No parity 8 times Even 9 times Odd 10 times XON XOFF control No parity 11 times Even 12 times Odd 13 or more times No change Rev B Adjustment and Setting 5 13 1 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 13
9. 1009 Remove the platen rotation frame 1 unit 1005 A Remove it while spreading its sides to the right and left See page 4 17 e Fixed blade holder lt For type B only gt assembly 1013 ORemove 2 screws S11 and remove the fixed blade holder assembly 1013 Manual cutter holder lt For type D only gt assembly 1020 Remove 2 screws S11 and remove the manual cutter holder assembly 1020 Roll paper guide unit Remove the two screws S05 and remove the Guide roll 1037 paper unit 1037 4 Roll paper holder 1010 Remove 2 screws S08 with 1 W02 and remove the roll paper holder 1010 Cover open assembly Remove 1 screw 502 securing the cover open assembly 515 515 Motor paper feed sub Remove 2 screws S11 and remove the motor paper feed sub assembly 1046 assembly 1046 Remove 1 E ring 2 3 E02 and remove the platen fix shaft R 1049 Lubricate the platen fix shaft R 1049 with G 36 After this you can remove the base frame 1049 Lubricate the base frame 1049 with G 36 Rev B Disassembly and Assembly 4 7 Disassembling the Carriage Unit Exploded diagram v 3098 509 506 4 8 Disassembly and Assembly Rev B Disassembly Procedures TM U220 TypeB TypeD Service Manual Reassem blysteps Part names Assembly procedures e Ribbon assembly frame LIRemove the ribbon frame spring 102
10. 103 Shield tube M T88 Shield tube M T88 2 Yes 104 Manual cutter screw Screw manual cutter Yes 105 Switch screw Screw switch 1 Yes 106 Caution seal C Seal caution C Yes 107 Logo plate Logo plate 2 Yes 108 Top case Case top Yes 109 Ribbon cover Cover ribbon Yes 110 Control panel Switch panel Yes 111 Operation label B Label operation B Yes 112 Rubber foot Rubber foot 2 Yes 113 Autocutter unit Auto cutter unit Yes 114 Cutter frame assembly Frame cutter assembly Yes 115 Cutter cover assembly Cover cutter assembly No 117 Cutter motor sub assembly Motor cutter sub assembly Yes 118 Guard tube C Guard tube C Yes 119 Roll paper cover assembly Cover roll paper assembly Yes 120 Mechanism assembly Mechanism assembly Yes 121 Micro switch Micro switch Yes 122 I F circuit board unit I F circuit board unit Yes 123 Sub circuit board unit Sub circuit board unit Yes 124 AC adapter AC adapter Yes 125 AC cable USA AC cable USA Yes 126 Front sheet sheet front Yes 141 Rubber foot B Rubber foot B 2 Yes 201 Main circuit board unit Main circuit board unit 2 Yes 501 Manual cutter screw Screw manual cutter 2 Yes 502 Switch screw 1 Screw switch 1 1 Yes 503 Print head unit Print head unit Yes 504 Platen release lever Lever platen release Yes Rev B Parts List Appendix A 1 Confidential Table A 1 Parts list by reference number
11. Check the take up operation Be sure Replace the defective gear Completed if the operation is normal Check the platen gap adjustment Adjust the platen gap refer to page 4 4 Completed if printing is normal 0 55 mm does not fall Probable part probable cause Adjustment roller shaft holders 506 Dots are missing continuously Checkpoints Check the platen gap adjustment 0 45 mm falls with no weight applied 0 55 mm does not fall Table 3 13 Dots are missing continuously Action to correct the problem Adjust the platen gap refer to page 4 4 Completed if printing is normal Probable part probable cause Checkpoints Action to correct the problem Check the continuity with a tester Make sure no wires are broken or shorted out Replace the head FFC 521 Head ie Oe Completed if printing is normal Check the continuity with a tester Make sure no wires are broken or shorted out Replace the print head unit 503 Completed if printing is normal Print head unit 603 Check the state of the dot wires Make sure they are not broken 3 12 Troubleshooting Rev B Confidential Line spacing is irregular TM U220 TypeB TypeD Service Manual Table 3 14 Line spacing is irregular is NO paper jam Probable part probable cause Checkpoints Action to correct the problem Roll paper is inserted Check the roll paper Make sure it meets Load r
12. Completed if operation is normal Check the operation of the HP board assembly 518 Make sure the signal changes when you block the sensor Replace the HP board assembly 518 Completed if operation is normal Check the connection of main circuit board unit 201 connectors Make sure they are plugged in securely CN7 carriage motor sub assembly 1034 CN4 HP board assembly 518 Plug in the connectors securely Completed if operation is normal Check if the parts on the main circuit board unit 201 have any damage Make sure connector CN7 and U8 look normal Replace the main circuit board unit 201 Completed if operation is normal R W error in memory Check for repeatability Make sure operation is normal by rebooting Replace the main circuit board unit 201 Completed if operation is normal High voltage error Check the DC power voltage on the main circuit board unit 201 Make sure the power voltage has the proper voltage rating Refer to page 3 20 Replace the main circuit board unit 201 Completed if operation is normal Low voltage error Check the DC power voltage on the main circuit board unit 201 Make sure the power voltage has proper voltage rating Refer to page 3 20 Replace the main circuit board unit 201 Completed if operation is normal 3 4 Troubleshooting R
13. Print result is not normal When print is light or irregular Refer to page 4 11 When print is dark Refer to page 4 11 When dots are missing continuously Refer to page 4 12 When line spacing is irregular Refer to page 4 12 When two color printing is not performed or the colors are mixed Refer to page 4 13 3 16 Troubleshooting Rev B Confidential TM U220 TypeB TypeD Service Manual Printed contents are not normal Table 3 20 Abnormal contents are printed Probable part probable cause Communication setting Checkpoints When a question mark is printed check communication settings Make sure DTR DSR control is selected by DIP switch or memory switch Action to correct the problem Select DTR DSR control Completed if is not printed I F cable When a question mark is printed check the continuity of the I F cable with a tester Make sure DTR DSR cross Replace the I F cable Completed if the operation is normal Printer information setting Check the printer information setting Make sure the following information is printed Maker name EPSON Printer name TM U220 Serial No Serial number on the manufacturer s plate Set again using the printer status function Completed if printing is normal Memory switch setting Check the memory switch setting Make sure it is the same as the setting used by customer If you do not know the customer s se
14. RQ AIREN 1 Select the Model TM U220 m Corumunication conditions Connect the printer and locate the roll paper Serial IF Parallel IF C USE UF Pot oom 7 Baud rate po a Data length bo o H Parity None x 3 Select the parameters sase p z to communicate with the printer Self test MIODE1 Self test MODE2 Communication test 4 Test the communication Click Next button Real time status Printer status 2 Select the type of I F Hetresh Port Next N Finish F 1 Model selection Select the TM U220 for either Type B or Type D model printers 2 Communication condition selection Select the I F used with the printer You can confirm the communication conditions set for the printer by running the self test Refer to the self test section for details Communication test 4 Confirm the communication status with the connected printer Normally the following message appears amp Support Utility for Windows G Communication condition coincides with the connected printer When the communication conditions are set correctly the following functions are available I Self test Mode 1 Outputs the same results as the self test printout of status Rev B Repair Guide 2 5 Confidential LI Self test Mode 2 Outputs the same results as the self test printout of the roll pattern I Real time status Lets you confirm sensor operations such as cover open close in re
15. Rev B Disassembly and Assembly 4 11 Disassembling the Roll Paper Guide Roll Paper Holder Exploded diagram 4 12 Disassembly and Assembly Rev B Disassembly Procedures TM U220 TypeB TypeD Service Manual Apply the below procedure for disassembling the Roll Paper Holder Reassembly steps Part names Paper end assembly 514 Assembly procedures LiRemove the paper end assembly 514 LIWhen replace the paper end assembly 514 you need to pull out the wire attached on the HP circuit board See page 4 21 Roll paper holder 1010 L Remove 2 screws S05 and remove the roll paper holder plate 508 Remove the roll paper holder 1010 Apply the below procedure for disassembling the Roll Paper Guide Reassembly Part names Assembly procedures steps o Lead wire set NE 1096 Remove the Lead wire set NE 1096 Paper end assembly 514 J Remove the Paper end assembly 514 2 Roll paper guide 1038 Remove the E ring 1103 Turn the NE detector adjustment screw 1040 and remove the NE detector assembly 1041 and nut N01 Then remove the roll paper guide 1038 Rev B Disassembly and Assembly 4 13 Disassembling the Autocutter unit Fixed Blade Holder Assembly Manual Cutter Holder Assembly Exploded diagram 4 14 Disassembly and Assembly Rev B Disassembly Procedures TM U220 TypeB TypeD Service Manu
16. 2 ERROR LED lights Roll paper cover assembly 119 Probable part probable cause Checkpoints Check the roll paper cover assembly Make sure the roll paper cover is closed Action to correct the problem Close the roll paper cover assembly Completed if the ERROR LED turns off Paper end state Check the roll paper Load the roll paper properly Completed if the ERROR LED turns off Rev B Troubleshooting 3 3 Confidential ERROR LED flashes Table 3 3 ERROR LED flashes Probable part probable cause Home position detection error Checkpoints Check for a paper jam around the carriage Make sure there is no paper jam Action to correct the problem Remove any paper jam Completed if operation is normal Check the tension of the carriage belt 507 Make sure the carriage belt has appropriate tension Adjust the tension of the carriage belt Refer to page 4 5 Completed if operation is normal Check operation of the parts around the carriage by moving the carriage from side to side Make sure the belt drive pulley 505 rotates by moving the carriage sub assembly 1025 from side to side Install the carriage belt 507 into the carriage sub assembly 1025 Completed if operation is normal Check the resistance value of the carriage motor sub assembly 1034 Make sure it is 7 2 Q or less Replace the carriage motor sub assembly 1034
17. Make sure connector CN10 is connected Replace the main circuit board unit Completed if the drawer is kicked out Rev B Troubleshooting 3 19 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 Completed if the cover opens and closes smoothly Confirm the condition of 2 projections on Ripbon over 109 the cover Make sure neither broken Cannot open and close the roll paper cover assembly smoothly Table 3 28 Opening and closing the roll paper cover assembly is not smooth Probable part probable cause Checkpoints Action to correct the problem Confirm that the frame rotation Frame rotation spacer 1050 Confirm that the spacer is fixed Make spacer is attached correctly p sure it is located in the correct position Completed if cover opens and closes Confirm that rotation spring L 1007 Confirm spring attachment Make sure and rotation spring R 1006 are they are located in the correct positions attached correctly Completed if cover opens and closes Rotation springs Confirm that the platen release Confirm spring attachment Make sure itis spring 1056 is attached correctly located in the correct position Completed if cover
18. STD use the STD tables 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 When the letters are STD Serial model DIP Switch 1 DIP Switch 2 SW Function On Off SW Function On Off Data receive error Ignored Prints Print column selection 42 35 40 33 2 Receive buffer 40 bytes 4 kB 2 Reserved Type A B Type D capacity Auto cutter enable disable Fixed to On Fixed to Off 3 Handshaking XON XOFF DTR DSR 3 Reserved Fixed to Off 4 Word length 7 bits 8 bits 4 Serial interface selection Memory DIP switch switch 5 Parity check Yes No 5 Reserved Fixed to Off 6 Parity selection Even Odd 6 Reserved Fixed to Off 7 Transmission soeed 4800 bps 9600 bps 7 Pin 6 reset signal Used ot used 8 BUSY condition Receive Receive 8 Pin 25 reset signal Used ot used buffer full buffer full or Offline Parallel USB Ethernet model Except serial DIP Switch 1 DIP Switch 2 SW Function On Off SW Function On Off Auto line feed Enabled Disabled Print column selection 42 35 40 33 2 Receive buffer 40 bytes 4 kB 2 Reserved Type A B Type D capacity Auto cutter enable disable Fixed to On Fixed to Off 3 7 Reserved Fixed to Off 3 7 Reserved Fixed to Off 8 BUSY condition Receive Receive 8 Pin 31 reset sign
19. a ribbon are correctly installed in the printer Then turn power off To run the self test turn the power on while holding down the FEED button The first page of the self test printout should look like the example in the table below To print the second part of the self test press FEED again 2 2 Repair Guide Rev B Confidential TM U220 TypeB TypeD Service Manual Printer status print Normal printout result SELF TESIT Firmware Versions2 91 ESC POE Boot Version 32 91 ESC POS erial interface Baud rate 9400 bes Rata bits 28 bits Parity inone Stop bit ti bit or more Handshaking DTR DSR Receive errortprints Receive buffer capacity aK bytes Receive buffer full release condition 256 bytes remain Havdshaking operation R y condition Wfline or receive buffer full Resident character Alphanumeric Paper rall width Tasi Dot spacing between characters 3 Halt dots Characters per line OM 40 CPL 33 CPL Autocutter unit Installed Memory switch 2 123456786 ON OFF H RHHRBASH Memory switch 8 ON OFF HRHHRRRA Explanation Version information Main program version Boot program version lnterface classification Interface information Receive buffer capacity 1 Busy release conditions for receive buffer full 2 Busy condition 3 Resident character 4 Paper roll width 5 Dot spacing between characters 6 Characters per line 7 Autocutter unit installed not
20. adda Rhea debe Re teed cet eee ae a Hea we Seve the eiea Moe eee eee ay 2 Control Panel LEDs and BUTTONS 26 eee teen nett ees 1 3 LEDS dash desta Riek aaah aea Machen a haters T i E Keia a da Eaa e Ta Ou ah acog gi ars 1 3 PAPER QUT vitsien tine E A A ter ave AENA tei tee aiae DA a Ae Tlie za ae aa EA EAA aN 1 3 BUTODS En aaa E A e eed a A E E a AE a A Rea Hae eine E TA a EN ae E 1 3 Power Supply Switch and Power Supply Switch COVE wees 1 3 Power Supply SwitchiCOver ac fis ees Cie na nanara ernia reds e a ae irea a DAA a 1 3 INSering Roll PAHE ss ee aa ea EE a E E e dE MG con aa A Fae AY 1 4 IM U220 SpeCifiCanions wen tie aa o a ete e a aa ga wal ea eee ane Maes 1 6 Chapter2 Repair Guide REDON POCESS fc te aid eac ea a a E Ga Re ted via a PRS ak Pe ictied aware cen Sees 2 1 OUMES OFTEDAL 2 oa asain Gye aaa Be sone ante y ha ea aa Gua aa a ar Da thew S ha Abate 2 1 REDOIFTOWS A e a r dl wattle Lacie d cette al O tug ae ae tan ee tan e ate Ved dated ond ot Beaded 2 1 Confirming the user s ENVITONMENT ouaaa aaa 2 1 Confirming the printer status renien wages pas a Yeas bea a EA aa aE Aga ees es 2 1 OGIETOST serren hau neh Gash aatve hand ee Caw DAS we ad gle ioe Eaa ail doar aee he f anh aie 2 2 SSMICSHUTIIMY Haig saeni aE ict oleh 8 A pd EA E ane gd ok awe palo eats Wee 2 5 Chapter 3 Troubleshooting Preparations for TrOuBIESNOOTING sorea wig is Om oy ae ES WAG Pe ee ee eR WE a 3 1 Before SSIVICING isre paronan Feat stb
21. and Assembly 4 17 Method for Attaching the Fixed Blade Holder Assembly and Manual Cutter Holder Spring Holder fixed blade assembly Hole Method for Attaching the Cover Open Assembly When attaching the Cover open assembly to the frame be sure that the wires throw the hole Cover open assembly Hole Wires 4 18 Disassembly and Assembly Rev B TM U220 TypeB TypeD Service Manual Method for Leading the Aufocutter Unit Wires guard tube and lead wire Be sure that there is a certain slack in the cable as following ane Cable of Autocutter unit Ee Rev B Disassembly and Assembly 4 19 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 ee ee ee The method of Attaching the Head FFC When attaching the FFC to the frame be sure that the FFC is thrown as following 4 20 Disassembly and Assembly Rev B TM U220 TypeB TypeD Service Manual 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 guid
22. if you work while the power supply is still attached Remove all peripheral equipment connected to the printer before starting work Do not perform any work that is not described in this chapter Doing so may result in injury or damage to the printer 4 2 Disassembly and Assembly Rev B 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 START Cover roll paper Cover ribbon Plate bottom I F circuit board assembly 119 109 1004 unit 122 l Cover roll paper 1 T I F circuit board Sub circuit board assembly 119 unit 122 unit 123 Case top Main circuit board 108 unit 201 TO eee Plate bottom Frame base sub unit Holder manual Guide rol paper 1004 1079 tS See cutter 1021 unit 1037 Auto cutter unit 113 Mechanism assembly N 2 Auto cutter unit Frame ribbon Motor paper feed Holder manua Guide rol paper 113 assembly 519 sub assembly 1046 E unit 1037 Holder fixed blade assemb y 1013 Frame platen Shart no oom rotation 1 1005 ad jus 606 er Cover open assembly Holder roll paper 515 assembly 1044 Carriage sub HP board assembly 1025 assembly 518 Pulley belt dr
23. it in the repaired product Follow the screen instructions to operate 2 6 Repair Guide Rev B Confidential TM U220 TypeB TypeD Service Manual All function test When you select the all function test in the printer sequence selection screen and click Next the all function test screen appears amp Support Utility for Windows Al Function Test TM U220 All Function Test Specify the test elements and click start IV Confirms sensor working IM Prints receipt test pattern 1 Select the test elements M Status Printing IV Report Printing Specify the test elements and click start Prepare the drawer kick 2 Click to start the All Function Test Select the test elements and click the Start button to start the all function test Using this test you can check the following functions for the printer Rev B 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 Roll paper cut function For printers with an autocutter cuts roll paper after each printing on the roll Drawer open close function Runs a test of drawer open close operation while printing the receipt pattern Be sure
24. page 3 14 PAPER OUT LED lights See page 3 6 Run the all unction test with he service utility Refer to page 2 7 or operation Reads printer status Prints the RECEIPT sheet See page 2 9 Prints the STATUS sheet after confirming the sensor operation See page 2 10 Prints the REPORT sheet See page 2 12 The communication test fails See page 3 16 The print result is not normal Gee page 3 16 Drawer kick is not performed See page 3 17 The sensor does not work See page 3 18 Perform other checks of operation Normal opening closing of roll paper cover Normal opening closing of ribbon cover The case is dirty Parts do not move smoothly See page 3 20 The case is dirtyl See page 3 20 Once you have confirmed the printer status using the table above you can perform the necessary functions below customer Self test Operation LI Identification of defective parts See Chapter 3 LJ Adjustment and setting See Chapter 5 11 Preparation for replacing parts Read and follow the precautions and notes at the beginning of Chapter 4 LI Parts replacement assembly and disassembly See Chapter 4 11 Preparation for shipment See the Chapter 6 before sending the printer back to the The Self test can be operated by using the service utility or operating the panel See page 2 12 about the panel operation Before running the self test make sure roll paper and
25. with the alphanumeric model cannot be used with the multilingual model Be sure to use the PS 180 with the multilingual model If the AC adapter C packed with the alphanumeric model is connected to the multilingual model by mistake the printer might not operate correctly For example printing might stop before all the lines are printed or the printer might print the same line repeatedly Multilingual means the printer model that can print any one of the following Japanese Kanji Simplified Chinese Traditional Chinese Thai characters or Korean characters Rev B Product Overview 1 1 Confidential Configurations The TM U220 is configured by combining features from the list below Table 1 1 configurations Features Interface type Selection UB SO1 RS 232 UB PO2Il IEEE1284 bidirectional parallel EPSON UB universal interface board options Description Use an EPSON approved interface board Autocutter setting Type B only Partial cut default Full cut The full cut is a setting available from the dealer Full cut should be selected only when the printer is installed horizontally Never change the printer from partial cut to full cut after it has been used Never leave pieces of cut paper in the paper exit Power supply unit type Paper width selection 76 69 5 or 57 5 mm 3 2 74 or 2 26 Exclusive external power supply AC Adapter C North America only pre packag
26. with the printer status 3 Manufacturer name Model name Product serial no Definition of data for space page is printed Definition of command default value is printed Q Note 1 2 When some data was used by an user it is necessary to backup and restore Repair Guide 2 11 Confidential Report print Normal print result Date Time Maker name Printer name Serial No All Function Test Result RECEIFT Printing Done SENSOR Working Done STATUS Printing Done REPORT Printing Done Sensor Working N E Sensor Ok R E Sensor Of Roll Cover D Paper Feed SW Ol Drawer 3 status 0 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 Q Note 1 When it is not OK by operating such as the cover and skipped using the button on the screen there is a problem on the item Refer to Cannot pass are of the tests for a sensor on page 3 18 Self test Procedure The method of Self test with panel operation indicated in the steps below 1 Make sure the printer is turned off and the roll paper cover is closed properly 2 While holding down the FEED button turn on the printer using the switch on the front of the printer The self test prints the printer setti
27. 1086 Belt tension plate sub assembly Plate belt tension sub assembly No 1088 Ribbon take up spring Spring ribbon take up No 1089 FFC protection tape Tape FFC protect No 1090 AC lead wire set Lead wire set AC 1 No 1091 Micro switch Micro switch No 1092 Hook spring C Spring hook C No 1093 Paper feed reduction gear 1 Gear paper feed reduction 1 No 1094 Drive gear Gear drive No 1095 IC cover IC Cover No 1096 NE lead wire set Lead wire set NE 1 No 1097 Ribbon release spring Spring ribbon release No Appendix A 4 Parts List Rev B Confidential Table A 1 Parts list by reference number TM U220 Type B Type D Service Manual Ref Name in service manual Name in price list Qty MAAE Note 1098 Ribbon cassette connector cable Ribbon cassette cable connector 1 No 1099 Ribbon cassette Ribbon cassette 1 No 1100 CBS Tite screw 3X12 F ZN C B S TITE SCREW 3X12 F ZN 2 No 1101 CBB Tite screw 2X8 F ZN C B B TITE SCREW 2X8 F ZN No 1102 Ppaper hold roller shaft Shaft paper hold roller No 1103 E ring 1 5 E ring 1 5 No E01 E ring 3 E ring 3 8 Yes E02 E ring 2 3 E ring 2 3 3 Yes E03 E ring 4 E ring 4 2 Yes NOI Nut Nut Yes S01 CPS O screw 3X6 S01 C P S O SCREW 3X6 8 Yes S02 CPSI Tite 3X5 F ZN S02 C P SITITE 3X5 F ZN 6 Yes S03 CBS screw 3X6 S03 C B S SCREW 3X6 7 Yes S04 CB screw 2X2 5
28. 2 519 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 2 Carriage sub assembly Remove the right and left adjustment roller shaft holder 506 1025 OPull out the carriage shaft 1027 SE Remove the head FFC 521 from the carriage sub assembly 1025 me pat Loosen 2 screws S12 14 securing the belt tension plate sub assembly 1086 Remove the carriage belt 507 together with the carriage sub assembly 1025 Remove the plate belt tension sub assembly 1086 LiRemove the head FFC 521 ma Confirm the method for removing the adjustment roller shaft holders 506 See page 4 20 When removing the shaft holder adjustment roller 506 replace it to the new part Because the part trasforms after removing it Confirm the method for attaching the carriage sub assembly 1025 See page 4 21 Also when removing the carriage sub assembly 1025 you need to adjust the platen gap of the unit See page 4 5 Confirm the method for attaching the carriage belt 507 See page 4 20 Also When attaching the carriage belt adjust its tension See page 4 6 Confirm the method for attaching the head FFC 521 See page 4 20 Lubricate the carriage sub assembly 1025 with O 13 Lubricate the plate belt tension sub assembly 1086 with G 36 Carriage guide plate Remove 2 screws S11 and remove the carria
29. 4 7 lps 40 columns 16 cpi Interface RS 232 or IEEE 1284 Receive buffer 4 KB or 40 bytes Data buffer NV bit image data 128 KB User NV memory 8 KB Power supply 24 VDC 7 Power consumption Stand by 2 2 W D K D function 2 drives Mechanism 7 500 000 lines Reliability Life Print head 150 million characters Autocutter 800 000 cuts Operating 0 50 C Temperature gt Storage 10 50 C without paper and ribbon cassette Humidity Operating 10 90 must be no condensation 10 90 must be no condensation without paper and ribbon Storage cassette Overall dimensions mm Type A 160 x 286 x 157 5 W x D x H Type B 160 x 248 x 138 5 W x D x H Type D 160 x 248 x 138 5 W x D x H Mass approx Type A 2 7 kg Type B 2 5 kg Type D 2 3 kg lps lines per second 1 6 Product Overview Rev B 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 of the operation of items in the flowchart If an item is in a state other than the normal state follow the instructions in the chapter to troubleshoot based on the symptom Repair flow
30. 8 bytes remain Msw 8 7 On 3 or more times No change L Paper width setting Press the FEED button the number of times required to select the desired roll paper width setting Customize value Press FEED button Selecting paper width 0 times No change 1 time 76mm 2 times 69 5 mm 3 times 58 5 mm 4 or more times No change Q Note See Setting the Paper Roll Width on page 5 3 also to adjust roll paepr width 0 Cover open status Press the FEED button the number of times required to select the desired the mapping of cover open status setting Press FEED button Selecting paper width 0 times No change 1 time Paper out Msw 8 8 OFF 2 times Cover open Msw 8 8 ON 3 or more times No change 5 14 Adjustment and Setting Rev B 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 Perform inspection and maintenance procedures described below properly to allow this unit to operate for the years of trouble free operation for which it is designed Maintenance Procedures The inspection procedures described in the below teble Periodic inspection Checkpoints Standards Remedies Dust paper particles or dirt No dust paper particles or dirt should be Clean the printer
31. Adjustment and Setting 5 1 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 Q To adjust the location of detection for the diameter of the roll paper core 1 To adjust the amount of remaining paper 1 Open the roll paper cover and remove the paper roll 2 Loosen the detector adjustment screw with a coin or similar tool 3 Adjust the detector by sliding the rever in the direction shown below Detector adjustment screw 1 setting Detector lever 2 setting 4 Tighten the detector adjustment screw 5 Check to be sure that the detecting lever moves freely 6 Replace the paper roll 5 2 Adjustment and Setting Rev B onfidential 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 Q Note 0 The default paper width setting value saved in NV memory is 76 mm So if the customer does not use 76 mm width paper return the printer only after setting it to the customer s value using the appropriate method for each printer function below Use the TM Service amp Support Utility See page 2 5 Use the Memory Switch Setup Mode See page 5 12 Q For printer models with a paper near end detector be carefu
32. Bracket Set WH 10 B 3 Removing the roll paper holder for hanging bracket 1 Open the printer cover 2 Remove the cam See page B 2 3 Remove the screw 3x10 screw 3x6 screw 3x10 When attaching it align the hole on the roll paper holder for hanging bracket with the dowel on the roll paper guide For a model that needs a change of paper width the hole to be used will be different to match your roll paper width of the roll paper hanging bracket holder to fit the dowel of the roll paper guide When changing the paper width the hole of the roll paper hanging bracket holder is different by the paper width for using B 4 Assembling and disassembling the Wall Hanging Bracket Set WH 10 Rev B TM U220 Type B Type D Service Manual Putting the screw in the hole on the roll paper holder for hanging bracket makes it easier for you to tighten the screw in the next step roll paper holder for hanging bracket dowel hole guide roll paper unit N CAUTION When levelly using the TM U220 removed the WH 10 change the roll paper near end detector position and the screw 3x10 to fix a roll paper guide is need Setting for installing the WH 10 When installing the WH 10 the installation position of the roll paper near end detector must be changed Paggo wall hanging type horizontally type 1 Open the roll paper cover Rev B Assembling and disassemblin
33. F ZN S04 C B SCREW 2X2 5 F ZN Yes s05 CBP Tite screw 3X8 F ZN S05 C B P TITE SCREW 3X8 F ZN 5 Yes S06 Screw P tight S06 Screw P tight Yes S07 CBP Tite 3X10 F ZN S07 C B P TITE 3X10 F ZN 2 Yes S08 CBP Tite screw 3X6 F ZN S08 C B P TITE SCREW 3X6 F ZN 3 Yes 09 CBS Tite 3X4 F ZN S09 C B S TITE 3X4 F ZN 5 Yes S10 CBS screw 3X6 F ZN S10 C B S SCREW 3X6 F ZN 6 Yes S11 CBS Tite 3X5 F ZN S11 C B S TITE 3X5 F ZN 10 Yes 12 CPSPS screw S12 C P S P S SCREW 2 Yes S13 CBS Tite 3X4 F ZN S13 C B S TITE 3x4 F ZN Yes WO2 Plain washer W02 Plane washer Yes Rev B Parts List Appendix A 5 Confidential Appendix A 6 Parts List Rev B TM U220 Type B Type D Service Manual Appendix B Assembling and disassembling the Wall Hanging Bracket Set WH 10 The WH 10 is an optional hanging bracket set for attaching the printer to a wall This chapter describes the disassembling and assembling of the parts composed the WH 10 and the setting when installing the WH 10 to the TM U220 Component parts es O A o O roll paper holder for hanging cam for TM U220 brackets 2 pieces bracket for TM U220 screw 3x10 1 piece screws 3x6 5 pieces for TM U220 2 CA Note 4 of the screws are used for for TM U220 Cd ON 5 ON attaching the brackets gt E Assembling and disassembling the WH 10 Removing the brackets Remove four screws 3x6 fixing the hanger of the base Insta
34. H 10 Component DONS sea Reeth eni rene sacked eaten te ae atin E Mae Gea Aea B 1 Assembling and disassembling the WH 10 0 6 eee B 1 Removing the Brackets e ease elated tne Bes Ve eA etd sees Rs tae A a B 1 Installing The Brackets va wuts lere oa wate VET ek PERE yaa ET die Pha FW a ee Ne eee aed B 1 REMOVING TNE COM s shri toe ae ean heirs ek E E ie dee eae ey sek i B 2 Removing the roll paper holder for hanging bracket saaana B 4 Setting forinstalling the WHH10 sic ceai aces wl ee We en A E A ea ce EATE Wand es B 5 Affixing the operation panel sheet aaa aoaaa eee eae B 7 Rev B iii Confidential Revision Table Rev Page Description Rev A All pages Newly authorized Rev B 1 1 to 6 Add the Operations and Specifications 4 4 to 7 12 Revision of the Guide roll paper Detector adjustment screw and Ering1 5 13 5 2 4 4 Revision of the Window RP and the rubber foot Be changed two rubber foot 112 to two rubber foot B 141 A 1 4 4 Add the Rubber foot B 4 10 Added the explanation of lubrication for improvement in a performance for feeding the paper Appdix B Add the Assembling and disassembling the Wall Hanging Bracket Set WH 10 iv Revision Table Rev B Confidential TM U220 Type B Type D Service Manual For Safe Repair and Maintenance Work Key to Symbols Rev B The symbols in this manual are identified by their level of importance as defined below Re
35. Make sure the following parts look normal CN 6 for lead wires of the near end sensor Symptoms when the self test is executed Self test is not executed Replace the main circuit board unit 201 Completed if operation is normal CN4 on the HP board assembly Before running the self test make sure the roll paper and ribbon are correctly installed in the printer Then turn power off To run the self test turn the power on while holding down the FEED button If the test does not print check the following 3 6 Troubleshooting 1 When the POWER LED does not light Refer to page 4 3 D When the POWER LED lights Refer to page 4 7 I When the POWER LED flashes Refer to page 4 7 Rev B 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 DIP switch setting Checkpoints For the serial I F check the reset function setting for pins 6 and 25 If the I F cable is connected and the reset function is available the I F may always be resetting Action to correct the problem Disable the reset function with the DIP switch setting Completed if operation is normal Main circuit board unit 210 Check the operation of SE2 Make sure pressing the FEED button feeds paper Make sure the continuity changes when you operate the switch Replace the main circuit board un
36. Manual Disassembling the Mechanism Assembly aaan 4 6 Exploded GIG Gray 14 1 5 teaa e isin aa a ga ede bats nF aoka barton ee Guan a EN ben a a 4 6 Disassembly ProCeGures sus yng ek daiwa gh le aer Ney dled A det aa arg O a a a a aE 4 7 Disassembling ihe Camage Unit aa secure BS eee ks ba wate etek Darian wie a 4 8 Exploded COON iz aside dea eaat a E a ath A EE aie PAE E Gade AN Adis E E teehee ach te Mente anced 4 8 Disassembly Pr ced re iig sacra na ee dioei EEA e EA EE EAT E ar E cased eae EE AE a 4 9 Disassembling the Platen Rotation Framel Unit 0 a 4 10 Exploded GIQOGINY orrat iana Pace a a E ree O E AOE NEA a N A a A a a AAE 4 10 Disassembly Procedures nauan E 4 11 Disassembling the Roll Paper Guide Roll Paper Holder ouaaa 4 12 Exploded diagramm eaen e a e a a e E E Naa aa ARES a e TAANS 4 12 Disassembly Procedures sic cis Peete o raaa HL pa EA E OO wes ba ea Se as 4 13 Disassembling the Autocutter unit Fixed Blade Holder Assembly Manual Cutter Holder Assembly 4 14 Exploded diagrami s gas wend aiciedltasnW hs eres ea aed ga ee ngien By bide aoe 4 aea oia 4 14 Disassembly ProCedures fits ea firth wk Wei ea I A SR wa AAG 4 15 Reference of Disassembly and Aseembly 1 eee eens 4 16 Reference of LUBriCation ariari aia aE eden he AY ERY aoe a Care Nw Mase ee Wea A e 4 24 Chapter 5 Adjustment and Setting Setting the Installation Position for the Roll Paper Near End Detector 0 0 cee 5 1 Adjusting the Detectin
37. Paper end assembly 514 Check the continuity of paper end assembly 514 wires with a tester Make sure wires are not cut or shorted out Be sure wiring is arranged correctly Replace the paper end assembly Completed if the test passes Main circuit board unit 201 Check the parts for defects Make sure connector CN4 is connected Replace the main circuit board unit Completed if the test passes Troubleshooting Rev B 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 Memory switch setting Checkpoints Check the setting of MSW 8 5 If the setting is OFF status is not sent from the roll cover but the RE sensor is changed Confirm if the setting status is ON Action to correct the problem Change the setting of MSW 8 5 to ON Completed if the test passes HP board assembly 518 Check the connection Make sure the cable is plugged in Make sure the connector on the HP board assembly 518 is connected to connector CN4 on the main circuit board unit 201 Plug in the connector Completed if the test passes Check the continuity with a tester Make sure wires are not cut or shorted out Be sure wires are arranged correctly Replace the HP board assembly 518 Completed if the test passes Cover open assembly 515 Check the continuity of
38. Service manual TM U220 Series Type B Type D Issued date Issued by English EPSON Confidential TM U220 Type B Type D Service Manual CONFIDENTIALITY AGREEMENT BY USING THIS DOCUMENT YOU AGREE TO ABIDE BY THE TERMS OF THIS AGREEMENT PLEASE RETURN THIS DOCUMENT IMMEDIATELY IF YOU DO NOT AGREE TO THESE TERMS QO This document contains confidential proprietary information of Seiko Epson Corporation or its affiliates You must keep such information confidential If the user is a business entity or organization you must limit disclosure to those of your employees agents and contractors who have a need to know and who are also bound by obligations of confidentiality 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 If a court arbitrator government agency or the like orders you to disclose any confidential information you must immediately notify Seiko Epson You agree to give Seiko Epson reasonable cooperation and assistance in the negotiation You may use confidential information only for the purpose of operating or servicing the products to which the document relates unless you obtain the prior written consent of Seiko Epson for some other use Seiko Epson warrants that it has the right to disclose the confidenti
39. TypeD Reassembly steps Part names Assembly procedures Fixed blade 513 LiRemove the fixed blade 513 Paper hold roller 1015 Remove the manual cutter holder 1021 Remove 1 E ring 2 3 E02 and remove the paper hold roller 1015 LIRemove the paper hold spring 1014 When installing the paper hold spring 1014 check how to attach the hook See page 4 17 When installing the manual cutter holder assembly 1020 check how to attach the hook See page 4 18 Lubricate the paper hold roller 1015 with G 36 Rev B Disassembly and Assembly 4 15 Reference of Disassembly and Aseembly 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 100 Method for Removing the Case top When removing the Case top release the each hook as following 4 16 Disassembly and Assembly Rev B TM U220 TypeB TypeD Service Manual Method for Removing and Attaching the Rotation Spring Land R When removing the springs push the springs to inside to release the each hook as following When attaching the springs insert the each hook in the hole as following Hook Method for Attaching the Paper Hold Spring Put the paper hold spring on the Fixed blade holder as following Sk Rev B Disassembly
40. Wein edie aoe EA E a wig alls eae Nees Y 3 2 DIGOMOSING FAESA 85 sone vse Goad ton Bee a AEAEE AE E a A Ae AAAA ANDA wy EELE ed nen AAE Vi GAE yawn eben BR nega aAA 3 2 SYMPTOMS ONG SOIUNONS sen cask td ahaa awe hee wel eS cal a eS vie eae a need RAA hed eas 3 3 Symptoms when the power ISON aaa een een eee eens 3 3 Symptoms when the all function test is executed 2 eee ees 3 15 Symptoms for other Operations oo eee es 3 20 Test Points on the Main Circuit Board Unit a 3 2 Resistance Values of Printer Mechanism Components 1 0 00000 cee eens 3 22 Chapter 4 Disassembly and Assembly LUD IS GINS 2S tender a fila eta te a tse aa etl Lavette Awad 4 1 Standard LUBE GTI OM iasa pA aaea a ak A Soa ce Gos Soe Alain Win Bhed j ao Eade Rca aA Ah AA aai 4 1 LUSTIG GATS ess ote v sotace Gist ecg Tres Re asthe Gere E A areata hia Ae AG a sie hake ais 4 1 EUBNCOTION POINTS aea anea oleic gerald Gay ea adits age on tae Ah 4 1 TOSES tse bon ML eaa a a we adh Aedes aRR Arh A a ERE actin ie APU enh habe esheets Ae 4 1 Notes for Assembly and Disassembly oauan eee eee 4 2 Shortest Route for Disassembly of Major Parts 2 0 eee ees 4 3 Disassembling the TM U220B TM U220D auaa eee terete ene ens 4 4 Exploded GIGI ka sa setae aes fade Madras Rang We roa a edna aie apnea ae D EAE daras aaia ANE EANA wi cade AN 4 4 Disassembly Procedures vise o eian ed ee Wie ek A WA aaa eee ne ee eae a 4 5 ii Rev B Confidential TM U220 Type B Type D Service
41. ad 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 Q Note Notes have important information and useful tips on the operation of your equipment Revision Table v Confidential Safety Precautions on Maintenance Repair Inspection WARNING m m 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 To prevent the possibility of electrical shock do not perform maintenance repair or inspection during a thunderstorm Shut down your equipment immediately if it produces smoke a strange odor or unusual noise Continued use may lead to fire or electric shock Immediately unplug the equipment Only disassemble this product as described in this manual Do not make modifications to the unit Tampering with this product may result in injury fire or electric shock Be sure to use the specified power source Connection to an improper power source may cause fire or shock Never insert or disconnect the power plug with wet hands Doing so may result in severe shock A CAUTION Parts on the circuit board may become hot during operation Therefore w
42. ailable to change them Some Memory switch setting is available to be changed by Memory switch setup mode page 5 12 Settings of the memory switch are stored in the NV memory therefore even if the printer is turned off the settings are maintained Excessive use of this function may destroy the NV memory As a guideline do not use this function more than 10 times a day Memory Switch 2 SW Function On Off Reseved Fixed to Off 2 Reseved Fixed to Off 3 Selection of the character code system of GB2312 GB18030 the Simplified Chinese 4 8 Reseved Fixed to Off Q Note Msw 2 3 The memory switch Msw 2 3 affects for Simplified Chinese model only Memory Switch 8 SW Function On Off 1 4 Reseved Fixed to Off 5 Selection of the cover open status Cover open Paper end 6 Reseved Fixed to Off Condition to release the BUSY in the Remaining 138 bytes Remaining 256 bytes receive buffer 8 Printer cover open during operation Errors that can possibly Errors that automatically recover recover 5 10 Adjustment and Setting Rev B TM U220 TypeB TypeD Service Manual onfidential Q 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 in each status tha
43. ait approximately 10 minutes after turning the power off before touching them To avoid injury take care not to insert fingers or any part of the hand in the paper roll opening where the manual cutter is installed Do not open the paper roll cover without taking the necessary precautions as this can result in injury from the autocutter fixed blade Modular Connectors Use the modular connectors specifically designed for the cash drawer and customer display for this product Do not connect these connectors to an ordinary telephone line vi Revision Table Rev B Confidential About This Manual Aim of the Manual TM U220 Type B Type D Service 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 Chapter 2 Chapter 3 Chapter 4 Chapter 5 Chapter 6 Appendix Product Overview Repair Guide Troubleshooting Disassembly and Assembly Adjustments and Settings Preparation for shipment Parts List Describes the product overview Describes the instructions to complete repair of the product Provides the information on troubleshooting Describes the disassemble and assemble procedures Also shows Exploded diarrams and lubrication point diagrams for this product Describes the adjusting and settings procedures Describes the preparing for tran
44. ake sure the 2 rollers rotate smoothly Replace the paper hold roller s 1015 Completed if operation is normal 3 14 Troubleshooting Rev B 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 rollers 1045 rotate correctly Completed if operation is normal Check operation Make sure the 2 rollers rotate smoothly Paper guide rollers 1045 Replace the mechanism assembly 120 Completed if operation is normal Check for defects Make sure you see no defects such as wear Replace the roll paper holder plate 508 Completed if operation is normal Check for defects Make sure you see no koll paper holder plate 308 defects such as deformation Printing noise loud Table 3 18 Printing is loud Probable part probable cause Checkpoints Action for the problem Load roll paper that meets Roll paper is inserted Check the roll paper Make sure it meets specifications correctly incorrectly specifications and is loaded correctly Completed if printing noise is reduced Check the platen gap adjustment Adjust the platen gap Refer to Adjustment roller shaft holders q 45mm falls with no weight applied page 4 4 Completed if the 506 te ae 0 55mm does not fall printing noise is reduced Symptoms when the
45. al Apply the below procedure for disassembling theAutocutter Unit assembly 117 Micro switch 121 Reason ly Part names Assembly procedures steps e Paper end assembly LJRemove 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 Cutter motor sub LiRemove 1 screw S04 and remove the cutter motor sub assembly 117 Remove 1 screw 105 and remove the micro switch 121 Remove 2 guard tube C 118 When removing the guard tube 118 you need to pull out the wire attached to the motor See page 4 19 Lubricate the paper hold roller 1015 with G 36 Apply the below procedure for disassembling the Fixed Blade Holder Assembly Only TypeB Reassembly Part names Assembly procedures steps 1 Fixed blade 513 Remove the fixed blade 513 Remove the fixed blade spring 1016 Remove the fixed blade holder 1017 When you replace the paper hold roller 1015 you need to remove 1 E ring 2 3 E02 27 Paper hold roller L Remove the paper hold roller 1015 and the paper hold roller shaft 1015 1102 Remove the paper hold spring 1014 When installing the paper hold spring 1014 check how to attach the hook See page 4 17 eLubricate the paper hold roller 1015 with G 36 Apply the below procedure for disassembling the Manual Cuter Holder Assembly Only
46. al time LJ 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 Refer to the chapter on adjustment settings Printer sequence selection When you click the Next button at the bottom of the communication conditions dialog box the printer sequence selection screen appears Service amp Support Utility for Windows m Printer sequence selection Select a printer sequence to execute C Print Test pattem C Firmware update C Drawer test 1 Select a printer sequence to execute C Disable Power ON Status Enable Power ON Status Main board replacement wizard C Backup wizard Restore wizard All Function Test Click Next button 2 Click Next to proceed Q Test printing This outputs a test pattern to confirm printer status Follow the screen instructions to operate Q Confirmation of the drawer operation You can confirm the drawer open function and the change in the open close status Follow the screen instructions to operate QO Setting for notification of power on You can enable or disable for the notification function for power on 0 Firmware update You can update the firmware Follow the screen instructions to operate Q Main circuit board replacement wizard back up wizard restore wizard You can back up the data in the main circuit board and restore
47. al Used Not used buffer full buffer full or Offline 5 8 Q Note See the next page for When the letters are US See Notes for DIP switch 2 1 on page 5 9 about the DIP SW 2 1 setting When you use serial interface model with 1200bps 2400bps or 19200bps you have to adjust DIP switch Serial interface selection function and Memory switch Serial comminucation conditon Adjustment and Setting Rev B TM U220 TypeB TypeD Service Manual When the letters are US Serial mode DIP Switch 1 DIP Switch 2 SW Function On Off SW Function On Off Data receive error lgnored Prints M Printcolumn 42 35 40 33 2 Receive buffer 40 bytes 4 kB 2 Reserved Type B Type D capacity Auto cutter enable disable Fixed to On _ Fixed to Off 3 Handshaking XON XOFF DTR DSR 3 Pin 6 reset signal Used Not used 4 Word length 7 bits 8 bits 4 Pin 25 reset signal Used Not used 5 Parity check Yes No 5 Reserved Fixed to Off 6 Parity selection Even Odd 6 Reserved Fixed to Off 7 Transmission soeed 4800 bps 9600 bps 7 Reserved Fixed to Off 8 BUSY condition Receive Receive 8 Serial interface selection Memory DIP switch buffer full buffer full switch or Offline Parallel USB Ethernet model Except serial DIP Switch 1 DIP Switch 2 SW Function On Off SW Function On Off 1 Autolinefeed Enab
48. al information SEIKO EPSON MAKES NO OTHER WARRANTIES CONCERNING THE CONFIDENTIAL INFORMATION OR ANY OTHER INFORMATION IN THE DOCUMENT INCLUDING WITHOUT LIMITATION ANY WARRANTY OF TITLE OR NON INFRINGEMENT Seiko Epson has no liability for loss or damage arising from or relating to your use of or reliance on the information in the document You may not reproduce store or transmit the confidential information in any form or by any means electronic mechanical photocopying recording or otherwise without the prior written permission of Seiko Epson Your obligations under this Agreement are in addition to any other legal obligations Seiko Epson does not waive any right under this Agreement by failing to exercise it The laws of Japan apply to this Agreement Cautions No part of this document may be reproduced stored in a retrieval system or transmitted in any form or by any means electronic mechanical photocopying recording or otherwise without the prior written permission of Seiko Epson Corporation The contents of this document are subject to change without notice Please contact us for the latest information While every precaution has been taken in the preparation of this document Seiko Epson Corporation assumes no responsibility for errors or omissions Neither is any liability assumed for damages resulting from the use of the information contained herein Neither Seiko Epson Corporation nor its affiliates shall be liable
49. all function test is executed When an error occurs during printing Refer to page 4 7 When paper is cut incorrectly Refer to page 4 9 Rev B Troubleshooting 3 15 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 sure the settings printed by the self test are the same as the communication settings Set the correct communication Communication condition settings Completed if operation is shown by the service utility normal Check the I F cable connection Make Plug in the I F cable correctly sure the I F cable is plugged in securely Completed if operation is normal I F cable Check the continuity with a tester Make sure no wires are cut or shorted out Be sure the cable is wired correctly Replace the I F cable Completed if operation is normal Connect the I F circuit board unit 122 Completed if operation is normal Check the connection Make sure the connector is plugged in securely I F circuit board unit 122 Replace the I F circuit board unit Check the parts for defects 122 Completed if operation is normal Check parts on the main circuit board unit Replace the main circuit board unit Main circuit board unit 201 201 for defects Make sure connector 201 Completed if operation is CN1 is connected norma
50. circuit board unit 201 parts have any damage Make sure the main circuit board unit 201 looks normal Replace the main circuit board unit 201 Completed if operation is normal The ERROR LED flashes 3 or 6 times and then does not operate all Check the setting of DIP SW2 6 OFF Initial state ON Rewriting flash memory Switch DIP SW2 6 on the main circuit board unit 201 to OFF Completed if operation is normal If operation is not normal rewrite the firmware Completed if operation is normal Rev B Troubleshooting 3 5 Confidential PAPER OUT LED lights Table 3 4 Paper OUT LED lights Probable part probable cause Roll paper Checkpoints Check the roll paper Make sure it is loaded correctly Make sure enough paper is left Action to correct the problem Replace the roll paper Completed if the PAPER OUT LED turns off Paper end assembly 514 Check operation of the paper end assembly 514 Make sure the continuity changes when you operate the switch Replace the paper end assembly 514 Completed if the PAPER OUT LED turns off Near end sensor Check operation of the micro switch 1039 Make sure the continuity changes when you operate the switch Replace the near end sensor Completed if the PAPER OUT LED turns off Main circuit board unit 201 Check the parts for damage
51. e Carriage sub assembly Shaft holder adjustment roller Method for Attaching the HP Board Assembly When replacing the HP board assembly be sure that the wires is tsoldering to the board as following When attaching the HP board assembly be sure that the wires is thrown to the hole and attached the board to the hook as following HP board assembl Rev B Disassembly and Assembly 4 21 Method for Attaching the Roll Paper GUide Unit Guide roll paper unit f wires Method for Leading Each Cable The below illustration indicates the cable leading Wires of the Cover opel assembly 515 Wires of the Motor pape feed sub assembly 104 Wires of the HP board assembly 518 Wires of the Lead wire set NE 1096 Wires of the Lead wi set PF 1047 4 22 Disassembly and Assembly Rev B TM U220 TypeB TypeD Service Manual Method for Attachng Each Cable to the Main Circuit Board ICN8 FFC head CNC3 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 1C CN8 Connecting the cable of the Lead wire set PF 1047 CN10 Connecting to CNC3 with cable When connecting the cables
52. e cutter motor sub assembly 117 Replace the drive gear sub assembly 1072 Completed if operation is normal Check the operation of the cutter motor sub assembly 117 Replace the cutter motor sub assembly 117 Completed if operation is normal Check the operation of the micro switch 121 Make sur Replace the micro switch 121 the continuity changes when you operate the switch Completed if operation is normal Check the AC lead wire set 1090 for breaks and shorts Make sure wires are not broken or shorted out Replace the AC lead wire set 1090 Completed if operation is normal Check fuse F3 on the main circuit board unit 201 Make sure it is not blown If the circuit board has no damage such as burns replace fuse F3 Completed if operation is normal If the fuse blows again in operation of the autocutter replace the main circuit board unit Rev B Troubleshooting 3 9 Confidential Table 3 8 ERROR occurs during printing Checkpoints Check the parts on the main circuit board unit 201 for damage Make sure the following parts look normal Connector CN2 QMI Action to correct the problem Probable part probable cause Replace the main circuit board unit 201 Completed if operation is normal circuit error Head high temperature detection Check the print head temperature Make sure it is not too high Wait for the pri
53. ed power supply specification only External power supply unit for Multilingual model PS 180 Be sure to change the paper guide spacer if paper of a different width is used Then set the customized value in printer memory for the correct paper width For details about how to set the paper width see Chapter 6 Installation Installation Position Horizontally Can be installed hanging on the wall with the WH 10 option Note Selections in the table above may be added to or changed in the future dpi dots per 25 4 mm dots per inch Part Names The figures below show the partnames of the TM U200 Roll paper cover 1 2 Product Overview Control panel Ribbon cassette cover Power supply switch Rev B Confidential TM U220 Type B Type D Service Manual Control Panel LEDs and Buttons ERROR PAPER OUT amp POWER FEED LEDs POWER Lights when the power is on and is off when the power is off ERROR Lights when the printer is offline when the roll paper is at the end or the roll paper cover is open Off when the printer operates correctly Flashes when an error occurs PAPER OUT Lights when roll paper is out or nearly out Buttons FEED FEED feeds the roll paper Note Paper cannot be fed by using this button when a paper out is detected Power Supply Switch and Power Supply Switch Cover The power supply switch is on the front of the p
54. en the serial no is not registered on the product itself NG is printed 2 3 When the default setting is changed is printed before the memory switch number 3 When autocutter setting is full cut partial cut is not performed 2 10 Repair Guide Rev B Confidential TM U220 TypeB TypeD Service Manual Normal print result Version information Firmware Yersionz2 1 ESC POS Boot Version 12 91 ESC POS Original Versians2 7i ESC POS Sensor status Paper end Paper present Near end iPaper supply OK Drawer kick ouk connector pin 3 High 4 0 converter Voltage ASH Impact head temperature 82H Power on status Disabled Main ROM size 4 bits Extended ROM Not instal led W bit image Not defined User NV memory Not defined EPSON NV information i EPSON e TH U220 3 Abcocooon1 Space page Customized Conmand default value Customized Explanation Program version is printed Main program version is printed Boot program version is printed Original program version is printed Power on status set with printer sequence is printed Size of main ROM is displayed Differs depending on specifications Size of extended ROM is displayed Differs depending on specifications Definition of the bit image data for NV memory is printed 1 Definition of data for user NV memory is printed formation of EPSON NV memory is printed It is changeable
55. er open lever 1052 Remove 1 screw S10 and remove the cover open lever 1052 Platen release lever 504 Remove 2 F ring 3 E01 and remove the platen release lever 504 and Platen shaft 1054 Lubricate the platen shaft 1054 with G 15 Gear plate D sub assembly 1057 Paper feed middle gear 509 Remove 2 screws S10 and remove the gear plate D sub assembly 1057 Remove 1 F ring 3 E01 and remove the paper feed reduction gear 2 1058 Remove the paper feed middle gear 509 Lubricate the paper feed reduction gear 2 1058 with G 36 Lubricate the gear plate D sub assembly 1057 with G 15 Platen assembly 1 522 Remove 1 F ring 3 E01 and pull out the platen shaft 1054 IIn doing so remove the paper feed middle gear B 510 the platen release plate 1055 and the platen release lever 504 together Take care not to lose the platen release spring 1056 Remove the platen assembly 1 522 Remove 1 screw S09 and remove the bottom holding plate BM 1061 2JWhen installing the platen rotation frame 1 unit 1005 on the base frame assembly check how to lead the autocutter unit 113 cable See page 4 19 Platen frame 1053 Platen rotation frame 1 1012 LiRemove 3 screws S10 and remove the platen frame 1053 After this you can remove the platen rotation frame 1 1012 Lubricate the platen rotation frame 1 1012 with G 15
56. ev B Confidential Table 3 3 ERROR LED flashes TM U220 TypeB TypeD Service Manual Probable part probable cause CPU execution error Checkpoints Check the connection of the I F circuit board unit 122 Make sure the connector is plugged into the main circuit board unit 201 Check parts on the I F circuit board unit 122 for damage Make sure the I F circuit board unit appears normal Action to correct the problem Connect the I F circuit board unit 122 Completed if operation is normal Connect the I F circuit board unit 122 Completed if operation is normal Check main circuit board unit 201 parts for damage Make sure the main circuit board unit 201 looks normal Replace the main circuit board unit 201 Completed if operation is normal Head high temperature detection circuit error Check the print head temperature Make sure it is not too high Wait for the print head temperature to drop Completed if operation is normal Check connection of the head FFC 521 Make sure it is plugged into the print head unit 503 and connector CN9 on the main circuit board unit 201 Connect the head FFC 521 Completed if operation is normal Check the continuity of the print head unit 503 Make sure wires are not broken or shorted out Connect the print head unit 503 Completed if operation is normal Check if main
57. ffer capacity etc D Memory switch serial communication conditions roll paper width cover open status handling etc LY Roll paper width 76mm 69 5mm 59 5mm Adjusting the spacer amp memory switch I Position of roll paper near end detector The current settings can be confirmed by a self test See page 2 2 Q Note When you use serial interface model with 1200bps 2400bps or 19200bps you have to adjust DIP switch Serial interface selection function and Memory switch Serial comminucation conditon When you adjust the items we recommend to confirm the new setting is enable or disable The confirming is performed by self test See page 2 2 How to Confirm Current Settings You can use a self test to confirm the current settings See page 2 2 Adjusting the DIP Switches The printer has two sets of DIP switches The function of the DIP switches is different for each interface model If you need to change settings follow the steps below to make your changes Z CAUTION Turn off the power while removing the DIP switch cover to prevent an electric short which can damage the printer Use a crosshead screwariver to remove the screw holding the DIP switch cover Rev B Adjustment and Setting 5 7 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 88888 FF last letters are
58. g Point of the Roll Paper Near End Detector 0 ee 5 2 Setting the Roll Paper SOACEr saaa en ene eee nee 5 3 SETTING THE GUIOCUTIER otis ice ae iaa A change oa fe Reo TE EEE TA Wubi cna abe naan e i 5 4 Platen Gaw Adjustment riie da eek eR eka ced ane niacin gals Ga ed Soca a DAA DEA ead Reside os 5 5 Carriage Belt Tension Adjustment 2 ee eee eee 5 6 AGJUSEVONOUS SETTING Aiea eis VAN PA i ai Ah Ge stn gee tA aii EE a E a niece E wuts dengue and 5 7 How to Confirm Current SEHINGS svs ceria aia paa eee Aaea ae T 5 7 Adjusting the DIP SwiChestise o sts Ss de eA ae ae a A elated wen ad 5 7 Memory Switches vint iar pre e eea gh ures eee eR te 1G a AEE oT oe ye eae ga aed 5 10 Memory Switch Setup Mode tes Sse diet ay ea ee wn ca aa eae oe eS 5 12 Chapter 6 Preparation For Shipment Inspection and Maintenance ass cc s caceey need edd dad idawadiqule ds Kgs Hele goa Ra ae aay Ae 6 1 Maintenance ProCGGuires nieu yosieoy died iridescent Eee ees 6 1 Cleaning stig viele awe Ue eka ate YR he ak See Aw lie eee WEE ae REE SEE a ee A ee i 6 1 HOw to Clean the CASES rieni ent a acacia sive EN A T EN agai hg a Stand nace he 6 1 Removing dirt paper chips and dust from inside the printer 0 ae 6 2 Installing or Replacing the Ribbon Cassette 2 eee eens 6 2 Appendix A_ Parts List Reference NUMbDEMLIST has tea eri cee aa Ba aca eels Bete ga Ba See Rae WO wee eh are ave A 1 Appendix B Assembling and disassembling the Wall Hanging Bracket Set W
59. g the Wall Hanging Bracket Set WH 10 B 5 2 Loosen the detector adjustment screw a little bit by using a tool such as a coin and then loosen the screw gently by hand as until it stops It must not be removed completely screw guide roll paper unit 4 Rotate the detector lever on the roll paper guide to change its direction Note After the direction of the detector lever is changed be sure that the cable is connected to the connector firmly 0 detector lever HO Q 1 cable 5 Tighten the detector adjustment screw 6 Align the hole on the roll paper guide with the hole on the roll paper holder to match your roll paper width and then tighten the screw 3x10 B 6 Assembling and disassembling the Wall Hanging Bracket Set WH 10 Rev B TM U220 Type B Type D Service Manual Note You will not use one of the two screws that have been removed when the roll paper guide is removed Please store it as an extra screw in case you need it roll paper holder roll paper guide V if CGS LW Se SY y v N 76mm 70mm 58mm 7 Attach the roll paper holder for hanging bracket See page B 4 8 Attach the com See page B 2 Rev B Assembling and disassembling the Wall Hanging Bracket Set WH 10 B 7 B 8 Assembling and disassembling the Wall Hanging Bracket Set WH 10 Rev B EPSON SEIKO EPSON CORPORATION
60. ge guide plate 1030 1030 Remove the carriage guide plate sub assembly 1026 a Sis plate sub Lubricate the carriage guide plate 1030 and the plate belt tension assembly L026 sub assembly 1086 with G 36 Ribbon drive plate sub Remove 1 E ring 2 3 E02 remove the ribbon drive plate sub assembly 517 assembly 517 Sian soo Beat Ce Remove the ribbon middle gear 512 on take up gear sub Remove the ribbon take up gear sub assembly 516 assembly 516 i Belt drive pulley 505 Remove 1 E ring 3 E01 remove the belt drive pulley 505 Carriage motor sub Remove 2 screws S09 and remove the carriage motor sub assembly 1034 assembly 1034 6 HP board assembly 518 Remove 1 screw S11 and remove the HP board assembly 518 LAWhen replacing the HP board assembly 518 you need to remove the solder Confirm the method for attaching the HP board assembly 518 See page 4 21 Base frame 1011 After this you can remove the base frame 1011 Lubricate the base frame 1011 with G 15 and G 36 Rev B Disassembly and Assembly 4 9 Disassembling the Platen Rotation Frame Unit Exploded diagram 4 10 Disassembly and Assembly Rev B Disassembly Procedures TM U220 TypeB TypeD Service Manual Reassembly steps Part names Assembly procedures e Paper feed roller plate B 511 LiRemove 2 screws 501 and remove the paper feed roller plate B 511 Cov
61. he unit and open the roll paper cover 2 Remove the jammed paper Rev B Troubleshooting 3 1 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 Auto cutter uni Knob 4 Lift up the roll paper cover Q Note I Besides a paper jam a foreign object such as a push pin can cause the autocutter to lock up If this is the case follow the same procedure described above to return the cutter to its normal position Before Servicing Pages iv to v at the beginning of this manual provide precautions you should observe to perform work safely and supply the necessary information to service this product safely Always read that information before starting your work Diagnosing Failures Use one of the following methods to identify the area where a failure occurred LI See the tables in the section Symptoms and Solutions for diagnosing failures by the symptom of the problem T See Test Points on the Main Circuit Board Unit for failures on the main circuit board unit 3 2 Troubleshooting Rev B Confidential Symptoms and Solutions TM U220 TypeB TypeD Service Manual Symptoms when the power is On POWER LED does not light Table 3 1 Power LED does not light Probable part probable cause Exter
62. iage motor sub assembly No assembly 1029 Belt tension pulley Pulley belt tension No 1030 Carriage guide plate Plate carriage guide No 1031 Ribbon switch lever Lever ribbon switch No 1032 Belt pulley shaft Shaft belt pulley No 1033 Belt tension plate Plate belt tension No 1034 Carriage motor sub assembly Motor carriage sub assembly No 1035 Ribbon take up gear shaft Shaft ribbon take up gear No 1036 Ribbon middle gear shaft Shaft ribbon middle gear No 1037 Roll paper guide unit Guide roll paper unit No 1038 Roll paper guide Guide roll paper No 1039 Micro switch Micro switch No 1040 Detector adjustment screw Detector adjustment screw No 1041 NE detector assembly N E detector assembly No 1042 NE detector holder Holder N E detector No 1043 NE detector lever Lever N E detector No 1044 Roll paper holder assembly Holder roll paper assembly No 1045 Paper guide roller Roller paper guide No 1046 Paper feed motor sub assembly Motor paper feed sub assembly No 1047 PF lead wire set Lead wire set PF No 1048 Paper reduction shaft Shaft paper reduction 1 No 1049 Platen fixing shaft R Shaft platen fix R No 1050 Frame rotation spacer Spacer frame rotation No 1051 Paper feed roller plate B Plate paper feed roller B No 1052 Cover open lever Lever cover open No Rev B Parts List Appendix A 3 Confidential Table A 1 Parts list by reference number
63. installed 8 Q Note 1 Differs depending on DIP SW1 2 2 Differs depending on MSW 8 7 Prints only when the receive buffer capacity is 4KB Does not print when the receive buffer capacity is 40 bytes 3 Differs depending on DIP SW1 8 4 Performs a multilingual CG judgment when printing resident characters 5 Differs depending on the paper roll width set with the memory switch customized value 6 Differs depending on DIP SW2 1 7 Differs depending on the paper roll width and dots between characters 8 Differs depending on DIP SW2 2 Rev B Repair Guide 2 3 Confidential Roll pattern Normal print result Explanation 4 Black 6 lines qe Red 6 lines qed 6 lines Paper feeds 2 lines gt Paper is fed to the position where the user can see the ending message at left 2 4 Repair Guide Rev B 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 Start up of the service utility When you start the service utility the following communication conditions dialog box appears Service amp Support Utility for Window Device selection
64. inted Probable part probable cause Ribbon cassette Checkpoints Check the ribbon mounting Make sure it is installed correctly Action to correct the problem Load the ribbon cassette correctly Completed if operation is normal Check the ribbon Make sure it is not wrinkled kinked or broken Replace the ribbon cassette with a new one Completed if printing is correct Head FFC 521 Check the continuity with a tester Make sure wires are not broken or shorted out Replace the head FFC 521 Completed if printing is correct Print head unit 503 Check the continuity with a tester Make sure wires are not broken or shorted out Replace the print head unit 503 Completed if printing is correct Main circuit board unit 201 Check parts for damage Make sure the following parts look normal Connector CN9 QM22 QM23 QM24 Replace the main circuit board unit 201 Completed if the print is correct Error occurs during printing Table 3 8 ERROR occurs during printing Probable part probable cause Autocutter error Checkpoints Check the connection of the main circuit board unit 201 connector Make sure the AC lead wire set 1090 is connected Action to correct the problem Plug in the connector Completed if operation is normal Check the operation of the drive gear sub assembly 1072 Make sure it rotates with rotation of th
65. ion spring R AD Spring rotation R AD No 1009 Rotation shaft Shaft rotation No 1010 Roll paper holder Holder roll paper No 1011 Base frame Frame base No 1012 Platen rotation frame 1 Frame platen rotation 1 No 1013 Fixed blade holder assembly Holder fixed blade assembly No 1014 Paper hold spring Spring paper hold No 1015 Paper hold roller Roller paper hold 2 No 1016 Fixed blade spring Spring fixed blade 1 No 1017 Fixed blade holder Holder fixed blade No Appendix A 2 Parts List Rev B Confidential Table A 1 Parts list by reference number TM U220 Type B Type D Service Manual Supplied Ref Name in service manual Name in price list Qty asa part Note 1018 Cover open plate Plate cover open No 1019 Paper guide plate D Plate paper guide D 1 No ype D 1020 Manual cutter holder assembly Holder manual cutter assembly 1 No ype D 1021 Manual cutter holder Holder manual cutter 1 No ype D 1022 Ribbon frame spring Spring ribbon frame No 1023 Ribbon frame shaft L Shaft ribbon frame L 1 No 1024 Ribbon frame Frame ribbon 1 No 1025 Carriage sub assembly Carriage sub assembly No 1026 Carriage guide plate sub Plate carriage guide sub assembly 1 No assembly 1027 Carriage shaft Shaft carriage No 1028 Carriage motor plate sub Plate carr
66. is for 2 color printing Action to correct the problem Replace the ribbon cassette with one for 2 color printing Completed if printing is normal Check the mounting Make sure the ribbon is installed correctly Install the ribbon cassette correctly Completed if printing is normal Two color shift function Check the mounting of the spring Make sure the following springs are mounted correctly Ribbon take up spring 1088 Ribbon frame spring 1022 Mount the springs correctly Completed if printing is normal Rev B Troubleshooting 3 13 Confidential Printed contents are not normal Table 3 16 Abnormal printing content DIP switch settings switch settings See page 5 8 Serial Interface when serial I F is installed Receive buffer capacity Receive buffer full release condition Handshaking operation Characters per line CPL Autocutter unit If they are not correct check the continuity of the DIP switch Probable part probable cause Checkpoints Action for the problem check Ne veGion number See page a Update the firmware Completed Firmware version Make sure it is the same as the version used if HAAG ie ronal by the customer or the latest version Pp 9 i l Check the version AUMber SSe pags Update the firmware Completed Boot version Make sure it is the same as the version used if SHAG is rormnal by the customer or the latest version p 9
67. ism power On Home Positioned OV supply HP sensor 518 power 5 H FAV supply PEO One i CN4 2 i Positioned On installing the roll 3 3V NE sensor 1096 power paper supply CN6 1 On not installing the OV roll paper RE sensor 514 power On installing the roll OV supply paper CN4 4 On not installing the 3 3V roll paper Drawer power CNC3 5 24V supply Rev B Troubleshooting 3 21 Confidential The locations of the main elements on the main circuit board unit are identified below U9 Q7 CN8 CN7 Resistance Values of Printer Mechanism Components CN6 CN4 Part Name Internal Element Function Where to Check Carriage motor 4 phase stepping motor Head carriage Remove the cable connector 1034 drive connected to CN7 on the A B main circuit board Test _ ROTOR between pin 1 and pin 3 and A B between pin 2 and pin 4 Normal Status Approx 7 2 Q per 1 phase Receipt paper 4 phase stepping motor Receipt paper Remove the cable connector feed motor feed connected to CN8 on the 1046 A B main circuit board Test ROTOR between pin 1 and pin 3 and A B between pin 2 and pin 4 Approx 7 2 Q per 1 phase 3 22 Troubleshooting Rev B TM U220 TypeB TypeD Service Manual Chapter 4 Disassembly and Assembly This chapter gives instructions to disassemble and assemble of the product Also the maintenance and cleaning in this section for reair i
68. it 201 Completed if operation is normal The printer does not print The print head operates but paper is not fed Table 3 6 The printer does not print Probable part probable cause Roll paper is inserted Checkpoints Check the roll paper Make sure it meets specifications Make sure it is loaded Action to correct the problem Load roll paper that meets specifications Completed if incorrectly oes correctly operation is normal Check for a paper path Make sure Open thiefol paper CONST assemDy Paper jam and remove the paper jam there is no paper jam Completed if operation is normal Gear does not rotate Check the gear operation Make sure the following gears rotate Paper feed gear 1063 Paper feed middle gear B 510 Paper feed middle gear 509 Paper feed reduction gear 1 1093 Make sure the paper feed motor sub assembly 1046 shaft rotates with rotation of paper feed reduction gear 2 1058 Replace the defective gear Completed if operation is normal Paper hold spring 1014 Check the mounting state Make sure it is mounted correctly See page 4 17 Insert the paper hold spring 1014 correctly Completed if operation is normal Paper hold roller 1015 Check operation Make sure it rotates smoothly Replace the paper hold roller 1015 Completed if operation is normal Paper guide roller 1045 Check the operation Make sure the rolle
69. ive Print head unit 505 503 Motor carriage sub assembly 1034 Frame base 1011 How to use the key map 1 Find a component that you want to removed that is enclosed in a box with black lines not blue dotted lines 2 Trace the line upward from the component to START 3 You need to remove all components or units on the path back to START Note that the steps of disconnecting cables and removing plates on the units are not described in this key map Rev B Disassembly and Assembly 4 3 Disassembling the TM U220B TM U220D Exploded diagram 1099 4 4 Disassembly and Assembly Rev B Disassembly Procedures TM U220 TypeB TypeD Service Manual Disassem bly steps 1 Part names Cover roll paper assembly 119 Disassembly procedures Open the Cover roll paper assembly 119 Push and take out the Shaft lever open 1001 remove the Cover roll paper assembly 119 ma When removing the cover roll paper assembly release the three hooks See page 4 16 Case top 108 Remove two screws S03 Open the Cover ribbon 109 Remove the Case top 108 and Cover ribbon 109 together RA When removing the Case top release the two hooks See page 4 16 I F circuit board unit 122 LiRemove two screws S01 Remove the I F circuit board unit 122 Plate bottom 1004 Remove the four screws S03 and remove
70. l not to pinch the near end detector lead wires between the roll paper spacer and the roll paper holder and be sure to push the lead wires inside so that the paper end detector lead wires do not contact the motor gear 1 Open the paper roll cover 2 When you want to set the each wide roll paper on the spacer shown in the illustration below f A paper width76 mm B paper width69 5mm Af C paper width57 5mrr TEA position of fixing the screws right side Roll paper spacer the screws left side 3 Push the roll paper spacer on the appropriate width See figure above 4 Tighten the spacer with 2 screws included with the spacer See figure above Rev B Adjustment and Setting 5 3 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 Q 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 1 Make sure the power supply is disconnected 2 Open the roll paper cover and remove it See page 4 16 3 Loosen the screw as indicated in following figure Loosen the screw Remove the screw 4 Lift the top of the cutter unit upward towards you and remove from the dowel 5 When you select partial cut default you have to adjust the do
71. led Disabled i Print column selection 42 35 40 33 2 Receive buffer 40 bytes 4 kB 2 Reserved Type B Type D capacity Auto cutter enable disable Fixed to On Fixed to Off 3 Reserved Fixed to Off 3 Reserved Fixed to Off 4 7 Reserved Fixed to Off 4 Pin 31 reset signal Used Not used 8 BUSY condition Receive Receive 5 8 Reserved Fixed to Off buffer full buffer full or Offline Q Note See the previous page for When the letters are STD See the page 5 9 about the DIP SW 2 1 setting Notes for DIP switch 2 1 The DIP switch 2 1 is define the print column as following table DIP switch 2 1 status Paper width Character font ON OFF 76mm Font A 9 x 9 35 33 Font B 7 x 9 42 40 69 5 mm Font A 9 x 9 32 30 Font B 7 x 9 40 36 57 5mm Font A 9 x 9 27 25 Font B 7 x 9 33 30 Unit cpl Character per line Rev B Adjustment and Setting 5 9 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 Q Note The Memory swich is available to be changed by the method as following e Memory switch setting utility e Memory switch setup mode there are limitation for av
72. lling the brackets Four different sets of screw holes are found on each bracket Each hole is identified by a number be sure to use the holes indicated in the instructions Rev B Assembling and disassembling the Wall Hanging Bracket Set WH 10 B 1 Attach the upper bracket to the holes numbered 2 and the lower bracket to the holes numbered 1 using the screws 3x6 Removing the cam 1 Open the printer cover 2 While you push the cam through the hole on the platen frame with a pointed tool such as tweezers rotate the cam in the upper direction to remove it Attaching by the following procedure 3 Check that the brake arm is up as shown in the illustration below brake arm B 2 Assembling and disassembling the Wall Hanging Bracket Set WH 10 Rev B TM U220 Type B Type D Service Manual N CAUTION Do not move the brake arm until the roll paper holder for hanging bracket is attached onto the base frame Otherwise the arm part will be damaged 4 Insert the dowel of the cam into the hole of the platen frame oe sia Saf l dowel BX S ole aten A N ral eee DLN xS exe O i 5 While you make sure the pin of the brake arm is in the groove on the inner side of the cam rotate the cam along with the surface of the platen frame in the direction indicated by the arrow until it clicks into position asl pin of brake arm Rev B Assembling and disassembling the Wall Hanging
73. nal power unit Checkpoints connector is plugged in Action to correct the problem Check the connections Make sure the Plug in the connector Completed if the POWER LED lights Check the output voltage Make sure 24V is coming out Replace power unit Completed if the POWER LED lights Cable connector 1098 Check the connectors Make sure the ones below are plugged in QO Connector CN10 on the main circuit board unit 201 QO Connector CNC3 on the sub circuit board unit 123 Plug in the connectors Completed if he POWER LED lights Sub circuit board unit 123 Main circuit board unit 201 Refer to page 3 20 Check the sub circuit board unit for damage Make sure it looks normal Check the resistance value of fuses F1 and F4 Make sure neither fuse is blown Replace the sub circuit board unit 123 Completed if the POWER LED ights f the circuit board has no damage such as burns replace fuse F1 or F4 Completed if the POWER LED lights f the fuse blows when power is urned on unplug all connectors rom the mechanism assembly 120 and check again f the POWER LED does not light and he fuse is blown replace the main circuit board unit Check the operation of SW1 Replace the main circuit board unit Check the power voltage Make sure the power voltage has proper voltage rating 201 Completed if operation is normal ERROR LED lights Table 3
74. ngs and then prints the following cuts the paper and pauses The PAPER OUT light blinks If you want to continue SELF TEST printing Please press the FEED button 3 Press the FEED button to continue printing The printer prints a pattern using the built in character set 4 The self test automatically ends and cuts the paper after printing the following completed The printer is ready to receive data as soon as it completes the self test Q Note If you want to pause the self test manually press the FEED button Press the FEED button again to continue the self test 2 12 Repair Guide Rev B 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 Turn the power off 2 Open the roll paper cover using the tab as shown in the below illustration _ Roll paper cover y L _ Tab S A 3 Remove the jammed paper Q Note If you turn the power off accidentally during printing the cutter blade may stop in the paper feed path So paper may not be fed normally at first when you turn the power on again If the symptom happens again after you remove the jammed paper follow the procedure described below 1 Power off t
75. nt head temperature to drop Completed if operation is normal Check the error frequency Make sure it does not occur too often Replace the print head unit 503 If the symptom continues replace the main circuit board unit 201 Completed if operation is normal Roll paper cover open error Check the state when the error occurs Be sure not to open the roll paper cover during printing If MSW 8 8 is OFF close the roll paper cover again Completed if operation is normal If the MSW 8 8 is ON turn power on again Completed if operation is normal If the error occurs when the roll paper cover is not open refer to Cannot pass are of the tests for a sensor Page 3 18 Check the error frequency Make sure it does not occur too often Replace the print head unit 503 Completed if operation is normal If the symptom continues replace the main circuit board unit 201 Completed if operation is normal 3 10 Troubleshooting Rev B Confidential Paper is not cut correctly TM U220 TypeB TypeD Service Manual Table 3 9 Paper is not cut correctly Probable part probable cause DIP switch setting Checkpoints Check the setting of DSW 2 2 OFF Autocutter is disabled ON Autocutter is enabled Paper is not cut when DSW 2 2 is disabled even when th autocutter unit is connected Type B Action to correct the problem
76. nt of lubrication in each cleaned area and lubricate as needed See Lubricants below See the explanations contained the diagrams in chapter 4 about the lubrication points 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 Unpack the ribbon cassette and turn the knob in the direction shown to take up any slack Open the ribbon cassette cover of the printer using the tabs on each side of the cover 7 3 Remove the old ribbon if there is one 4 Insert the new ribbon cassette as shown and push the ribbon cassette down until it clicks Q Note Make sure the ribbon is installed between the print head and the platen without wrinkles or creases all 5 Close the ribbon cassette cover of the printer 6 2 Preparation For Shipment Rev B Confidential Appendix A Parts List Reference Number List 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 asapart Note 102 Power switch cover Cover power switch Yes
77. oll paper that meets E i specifications correctly Completed if incorrectly specifications and is loaded correctly Eaa operation is normal Open the roll paper cover and Paper jam Check the paper path Make sure there remove the paper jam Completed if operation is normal Gear does not rotate Check gear operation Make sure the following gears rotate with each other Paper feed gear 1063 Paper feed middle gear B 510 Paper feed middle gear 509 Paper feed reduction gear 1 1093 Make sure the I F circuit board unit 122 shaft rotates with the rotation of paper feed reduction gear 2 1058 Replace the defective gear Completed if operation is normal Paper hold spring 1014 Check the spring mounting Make sure it is mounted correctly Refer to page 4 17 Insert the paper hold spring 1014 correctly Completed if operation is normal Paper hold roller 1015 Check operation Make sure it rotates smoothly Replace the paper hold roller 1015 Completed if operation is normal Paper guide roller 1045 Check operation Make sure it rotates smoothly Clean so the paper guide roller 1045 rotates correctly Completed if operation is normal Two color printing is not performed or colors are mixed Table 3 15 Printing is not two color or colors are mixed Probable part probable cause Ribbon cassette Checkpoints Check the ribbon type Make sure it
78. ollowing parts operate with operation of the carriage sub assembly 1025 Q Belt drive pulley 505 Q Ribbon middle gear 512 Q Ribbon drive plate sub assembly 517 Q Ribbon take up gear sub assembly 516 Replace the defective gear Completed if the operation is normal Adjustment roller shaft holders 506 Check the platen gap adjustment 0 45 mm falls with no weight applied 0 55 mm does not fall Adjust the platen gap refer to page 4 4 Completed if printing is normal Rev B Troubleshooting 3 11 Confidential Print result is not normal Print is light or irregular Table 3 11 Print is light or irregular Probable part probable cause Ribbon cassette Ribbon take up function Adjustment roller shaft holders 506 Print is dark Table 3 12 Print is dark Checkpoints Check the ribbon mounting Make sure it is installed correctly Action to correct the problem Install the ribbon cassette correctly Completed if printing is normal Check the ribbon cassette Make sure the ribbon is fed by turning the tab the following parts operate with operation of the carriage sub assembly 1025 Q Belt drive pulley 505 Q Ribbon middle gear 512 Q Ribbon drive plate sub assembly 517 Ribbon take up gear sub assembly 516 0 45 mm falls with no weight applied Replace the ribbon cassette with a new one Completed if printing is normal
79. on the Main circuit board Be sure that a slack wires are leading as following Rev B Disassembly and Assembly 4 23 Reference of Lubrication 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 a Carriage sub assembl Carriage shaft Lubricate to the point of the carriage sub assembly with G 36 Lubricate to the point of the carriage guide plate with G 36 Carriage sub assembly Carriage guide plate carriage guide plate sub assembly Rotation shaft Base frame 4 24 Disassembly and Assembly Rev B onfidential 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 2 Push the detector lever in until it touches the back of the hole 3 While pushing the detector lever turn the tab until the lever clicks into place in the desired hole Detector adjustment screw Hole for vertical installation or wall mount Detector lever oe 4 Secure the detector adjustment screw 5 Make sure the detector lever moves smoothly Rev B
80. opens and closes Platen release spring 1056 a Confirm that hook spring C 1092 is Confirm spring attachment Make sure it is Hook spring C 1092 located in the correct position attached correctly Completed if cover opens and closes The case is dirty Use a dry cloth or one lightly moistened with water to clean case Be sure to disconnect the power cord from the wall outlet before doing this Avoid using alcohol benzene thinner trichloroethylene or ketone based substances to remove dirt or foreign matter from the printer because these substances can affect or damage plastic and rubber parts 3 20 Troubleshooting Rev B 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 z Q1 5 or 6 or 7 24V or 8 Logic circuit power U9 pin 5 3 3V Logic circuit Dower supply supply eae Logic circuit power Bottom OV supply GND assembly frame Autocutter 117 power F3 24V supply Print Head power supply Q7 5 or 6 or 7 24V or 8 Roll paper cover open Cover opened 3 3V sensor 515 power CN4 5 supply Cover closed OV Mechan
81. or Completed if the test passes Check the continuity with a tester Make sure wires are not cut or shorted out Verify that wires are arranged correctly E lead wire set he test passes Replace the Completed if Micro switch 1039 Check micro switch 1039 operation Make sure the continuity changes when you operate the switch Replace the near end sensor Completed if the test passes NE detector holder 1042 NE detector lever 1043 Main circuit board unit 201 Check the operation Make sure the NE detector lever rotates smoothly Check the parts for defects Make sure connectors CNC2 and CN6 are connected Replace the NE detector holder or lever Completed if the test passes Replace the main circuit board unit Completed if the test passes Cannot pass the test for the RE real end sensor 3 18 Table 3 23 Test for the RE sensor fails Probable part probable cause HP board assembly 518 Checkpoints Check the connection Make sure the cable is plugged in Make sure the connector on the HP board assembly 518 is connected to connector CN4 on the main circuit board unit 201 Action to correct the problem Plug in the connector Completed if the test passes Check the continuity with a tester Make sure wires are not cut or shorted out Be sure wiring is arranged correctly Replace the HP board assembly 518 Completed if the test passes
82. printed Printer name TM U220 TM U220 is printed Serial No ABCDOOOOOL Serial no for the product is printed 1 lt _ 2 a Graphic pattern is printed Checks for dot missing Mongongo Refer to Dots are missing continuously on page 3 12 J ODCHDGOIG00GRE0000RRIORONNGDISRNARDOTRO 2ANK characters are printed 2 OOOCOUCOCOCONSOOoR0oCouR0onONgOD Full cut is performed 3 QODHUHOOOOADADOUOHOHOADDOHOGOHO A e 1 When the serial no is not registered on the product itself NG is printed 6 7 U O 1693 34 2 7RABCD 2 When using the 2 color ribbon prints in 2 colors H 8 Kt 0123456789s gt 2 ABCDEFGH 3 When autocutter setting is partial cut full cut is LIRSKA J 0123456789 5 lt gt 78 not performed LURERE 0123454789 lt 6A WHGZS 8 0123454787 lt gt PEABDDEFG REZE 84 OL254567BFs lt gt TRABCHEFGH HESR E 012345670F 4 70 HENS 8 O0123456789 5 lt gt 78A FULL CUT Rev B Repair Guide 2 9 Confidential Status print Normal print result amp oeo 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 4 Q Note 1 Wh
83. r rotates smoothly Clean so that the paper guide roller 1045 rotates correctly Completed if operation is normal Check for damage You should see no damage such as wear Replace the mechanism assembly 120 Completed if operation is normal Rev B Troubleshooting 3 7 Confidential Table 3 6 The printer does not print Probable part probable cause PF paper feed lead wire set 1047 Checkpoints Check the connectors Make sure they are plugged in securely Paper feed motor sub assembly 1046 Connector CN8 on the main circuit board unit 201 Check the wires for breaks and shorts Make sure no wires are broken or shorted out Action to correct the problem Plug in the connectors Completed if operation is normal Replace the PF lead wire set 1047 Completed if operation is normal Paper feed motor sub assembly 1046 Check the resistance value Make sure it is 7 2 Q or less Replace the paper feed motor sub assembly 1046 Completed if operation is normal Main circuit board unit 201 Check if the parts have any damage Make sure the following parts look normal Connector CN8 U8 Replace the main circuit board unit 201 Completed if operation is normal Rev B 3 8 Troubleshooting 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 pr
84. rinter Press the power supply switch to turn on the printer Power Supply Switch Cover If you need to turn the power supply switch on or off with the cover attached you can insert a thin tool into one of the holes in the cover to operate the switch A WARNING If an accident occurs when the power supply switch cover is attached immediately unplug the power supply cable to avoid fire Rev B Product Overview 1 3 Confidential Inserting Roll Paper A CAUTION Be sure to use roll paper that meets the specifications Be sure not to touch the manual cutter Otherwise your fingers might be injured 1 Using scissors cut the leading edge of the roll paper 2 Turn on the printer and open the roll paper cover by using the tab 3 Insert the roll paper 1 4 Product Overview Rev B Confidential Rev B TM U220 Type B Type D Service Manual Note Note the direction the paper comes off the roll Q DAO 4 Close the roll paper cover and tear off the roll paper with the manual cutter Note Do not open the roll paper cover during printing or paper feeding When using the printer be sure to cut the roll paper with the manual cutter after paper feeding is complete Product Overview 1 5 Confidential TM U220 Specifications Print method 9 pin serial impact dot matrix method Font standard Font A 7 x 9 Font B 9 x 9 Multilingual 16 x 16 Thai 7 x 27 9 x 27 Column capaci
85. s explained Lubricants Lubrication is critical to retaining the printer at its initial performance level throughout its product life as well as avoiding potential problems Always lubricate at prescribed intervals using the correct lubricants Standard Lubrication 1 During disassembly and reassembly clean the parts first then lubricate them I Lubricate or overhaul after every 7 5 million lines printed Lubricants The types of lubricants used greatly affect the printer s performance and durability and a lubricant s low temperature characteristics require special attention EPSON has conducted thorough analyses of the technical data and wide ranging experimentation on different 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 The two types of lubricants used with this printer are G 15 G 36 and O 13 Lubrication Points The following table describes the lubrication points type and class See the explanations contained the diagrams in this chapter Tool List 11 Please use the tools indicated below for assembly and disassembly Items Parts cord Note Gap gauge 1080567 Size 0 45 1080568 Size 0 55 Tension gauge 1213123 E ring holder 1074111 Size 2 3 1080545 Size 3 1080546 Size 4
86. sport Also provides the information on maintenance inspection and cleaning Provides a parts list Also describes screw types Revision Table vii Rev B Confidential viii Revision Table Rev B Confidential Chapter Product Overview TM U220 Type B Type D Service Manual The TM U220 is a serial impact dot matrix printer for POS systems that can print on roll paper of various widths TM U220 has the following type Type A Type B TM U220 external views TypeA Type B Type D Two color printing Yes Yes Yes Autocutter Yes Yes No Take up device Yes No No Paper width mm 76 76 69 5 57 5 76 69 5 57 5 Interface Serial or parallel Serial or parallel Serial or parallel Characters supported Alphanumeric or multilingual Alphanumeric or multilingual Alphanumeric or multilingual Multilingual means that the printer can print with any one of the following Japanese Kanji Simplified Chinese Traditional Chinese Thai characters or Korean characters B type and D type are explained in this manual Notes on Connecting the Power Supply Unit Be sure to use the correct power supply unit as listed below TM U220 alphanumeric model AC adapter C packed with the alphanumeric model or PS 180 option TM U220 multilingual model PS 180 packed with the multilingual model Note The AC adapter C which is packed
87. t is transmitted from the printer is changed every time the roll paper cover is open or closed Msw 8 8 When Off is selected a bit of the automatic recoverable error in each status that is transmitted from the printer is changed every time the roll paper cover is open When On is selected a bit of the mechanical error in each status that is transmitted from the printer is changed every time the roll paper cover is open The setting of Msw 8 5 and 8 8 can be set by Memory switch setup mode See page 5 12 Customize value Function Selectable value Roll paper width 57 5 mm 69 5 mm 76 mm default value Q Note These setting can be set by Memory switch setup mode See page 5 12 Also when adjusting the roll paepr width See page 5 3 Serial communication Function Selectable value baud rate 1200 bps 2400 bps 4800 bps 9600 bps 19200 bps Parity None Odd Even Handshake DSR DTR XON XOFF Data length 7 bit 8 bit Q Note There are two method which are DIP switch and Memory switch by using the service utility to change the serial communication conditions frim the default DIP SW2 selects which is effective DIP switch or Memoery switch Also these setting can be set by Memory switch setup mode indicated below Rev B Adjustment and Setting 5 11 Memory Switch Setup Mode The following items are specified in the memory switch setup mode
88. tating the shaft holder adjustment Move the printing head unit to the right insert the gauge from the right side and adjust the gap while rotating the shaft holder adjustment Move the printing head unit to the left insert the gauge from the left side and check the gap When it does not meet the standard adjust gap while rotating the shaft holder adjustment Move the printing head unit to the right insert the gauge from the right side and check the gap When it does not meet the standard adjust the gap while rotating the shaft holder adjustment T Ss e y shaft holder adjustment roller gap wider gap narrower Adjustment and Setting 5 5 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 Check the belt tension 2 Q Note Make sure the plate belt tension is stable when loosening the screw tightening the plate belt tension while pulling the carriage belt with the tension gauge by 7 35N 3 Tighten the plate belt tension assembly with the screw Tension gauge 5 6 Adjustment and Setting Rev B on idential TM U220 TypeB TypeD Service Manual Adjust various setting This printer is able to be adjusted for the items below I DIP switch communication condition busy condition print column receive bu
89. the Plate bottom 1004 Main crcuit board unit 201 Sub crcuit board unit 123 Remove the connectors connected to the Main crcuit board unit 201 Remove the four screws S01 and remove the Main crcuit board unit 201 When attaching each cable to the main circuit board be sure that the each cable is attached correctly See page 4 23 LiRemove the two screws S01 and remove the Sub crcuit board unit 123 Auto cutter unit 113 Plate paper guide D 1019 Frame bottom assembly 1085 lt For type B only gt Remove the two screws S02 and remove the Auto cutter unit 113 When attaching the autocutter confirm if the cutting patern is selected correctly See page 5 4 LiRemove the two screws S02 and remove the Plate paper guide D 1019 lt For type D only gt Remove the four screws S02 and separate the Frame bottom assembly 1085 from the Mechanism assembly 120 Rev B Disassembly and Assembly 4 5 Disassembling the Mechanism Assembly Exploded diagram 4 6 Disassembly and Assembly Rev B Disassembly Procedures TM U220 TypeB TypeD Service Manual Disassembly steps 1 Part names Platen rotation frame 1 unit 1005 Assembly procedures LI With Platen rotation frame 1 unit closed remove E ring 3 E01 LI Release rotation springs R and L from the hooks LI Remove F ring 4 E03 and remove the rotation shaft
90. the wires for the cover open assembly 515 with a tester Be sure wires are not cut or shorted out Be sure wires are arranged correctly Replace the cover open assembly Completed if the test passes Main circuit board unit 201 Check the parts for defects Make sure connector CN4 is connected Replace the main circuit board unit Completed if the test passes Cannot pass the test for the Paper Feed Switch Table 3 25 Paper FEED button test fails Probable part probable cause Main circuit board unit 201 Checkpoints Check the operation of SW2 Make sure roll paper is fed when you press the paper FEED button Make sure the continuity changes when you press the button Action to correct the problem Replace the main circuit board unit Completed if the test passes Cannot pass the test for drawer 3 status Table 3 26 Drawer 3 status fails Probable part probable cause Drawer kick Checkpoints Check the connection Make sure the cable is plugged in Check each leading pin for drawer 1 or drawer 2 Action to correct the problem Plug in the connector Completed if the drawer is kicked out Sub circuit board unit 123 Check the parts for defects Make sure connectors CNC2 and CNC3 are connected Replace the sub circuit board unit Completed if the drawer is kicked out Main circuit board unit 201 Check the parts for defects
91. thoroughly with a on and in the printer allowed to build up on or in the printer vacuum cleaner No small pieces of paper should be left in Remove any pieces of paper from the the paper path paper path Lubrication See the explanations in this chapter Lubricate the points witten in the diagrams Operation check When each printer component is Check the printer following Repair checked no abnormalities should be Guide in Chapter 2 found Shape of the springs No spring should be bent or deformed Replace any deformed springs Ribbon cassette The ribbon cassette should be properly See Instaling orReplacing the Ribbon installed in the printer Cassette in this chapter Cleaning How to Clean the Case s N WARNING To avoid electric shock be sure to disconnect the power cord from the electrical outlet Use a dry cloth to wipe away dirt If the dirt proves difficult to remove slightly moisten the cloth with water or a mild detergent solution Z CAUTION Never clean the case with disinfectant bleach alcohol benzene thinner Chlorine or ketone otherwise the dirt may become difficult to remove Also they may cause the case to discolor dissolve or deform Rev B Preparation For Shipment 6 1 Confidential Removing dirt paper chips and dust from inside the printer Wipe off stains with a clean dry cloth If the stains do not wipe off use a neutral detergent N CAUTION Check the amou
92. to connect the drawer kick to the printer before executing the all function test Sensor function Confirms the operation of sensors controlling and detecting printer operations The checking method for the sensor indicated with the arrow is displayed on the screen Operate the printer following the instructions on the screen Repair Guide 2 7 Confidential Support Utility for Windows Al Function Test TM U220 Confirms sensor working I NE Sensor I RE Sensor o I RolCy Paper Feed SW 1 Sensor to test is indicated M Drawer 3 status Check by the following methods 2 Operate the printer in accordance Move roll paper near the paper near end detector with message EditHelp 3 Click If you cannot test Finish E 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 Output result When the printer operates normally the following sheet is printed Refer to the chapters on Troubleshooting and Adjustment and Setting when print results differ 2 8 Repair Guide Rev B Confidential TM U220 TypeB TypeD Service Manual Receipt print Normal print result Explanation Date 2003 04 30 Execution date is printed Time 16 35 52 Execution time is printed Maker name EPSON EPSON is
93. to the purchaser of this product or third parties for damages losses costs or expenses incurred by the purchaser or third parties as a result of accident misuse or abuse of this product or unauthorized modifications repairs or alterations to this product or excluding the U S failure to strictly comply with Seiko Epson Corporation s operating and maintenance instructions Seiko Epson Corporation shall not be liable against any damages or problems arising from the use of any options or any consumable products other than those designated as Original EPSON Products or EPSON Approved Products by Seiko Epson Corporation EPSON and ESC POS are registered trademarks of Seiko Epson Corporation Rev B 1 Confidential Contents For Safe Repair and Maintenance Work 1 0 cee ee tenet eee ens v Key TOSVINDOIS sinea o a A Sa eaa Ree eee TE ae E Roa a aA a A AAA v Safety Precautions on Maintenance Repair INSPECtHON aana vi ModulanrCOnneClors me iit n AE AEE ier th ea OR A N ERAAN E gata vi AbOurThIS MOMUGI autrea grane ae na ane aa a e a a a a a hee teh Lew AR vii Airy ofthe Manual ia at ates rane aetna a e ack E SGEEA RR eh be ead an tk oa a a a vii Wieler EERIE AE aa footie oR Ate ih ht SLEEK LAUR LA AEE he EAE RR EE Oe LR vii Chapter 1 Product Overview Notes on Connecting the Power Supply Unit 2 0 a 1 1 CONMIGUIOTIONS eis eg ait o s d er ara a E lad aeia E Biel Ebr a ara A yids bv te Baw 6 ele tia 2 Pan NAMES Trada ici eA aA
94. tting make sure it is in the factory default state Refer to page 4 10 Set again using the printer status function Completed if printing is normal Drawer I or 2 is not kick out Table 3 21 Drawer 1 or 2 is not kick out Probable part probable cause Drawer kick Checkpoints Check the connection Make sure the cable is plugged in securely Check each leading pin for drawer 1 or drawer 2 Action to correct the problem Plug in the connector Completed if the drawer is kicked out Sub circuit board unit 123 Check board parts for defects Make sure connectors CNC2 and CNC3 are connected securely Replace the sub circuit board unit Completed if the drawer is kicked out Main circuit board unit 201 Check the parts for defects Verify the parts below Connector CN10 Element U7 Replace the main circuit board unit Completed if the drawer is kicked out Rev B Troubleshooting 3 17 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 NE lead wire set 1096 Checkpoints Check connection Ensure cable is plugged in Be sure the NE lead wire set 1096 is connected to the connectors below Micro switch 1039 Connector CN6 on the main circuit board unit 201 Action to correct the problem Plug in the connect
95. ty columns default 7x 9 9 x 9 16 x 16 7 x 27 9 x 27 76 mm 40 33 22 40 33 69 5 mm 36 30 20 36 30 57 5 mm 30 25 16 30 25 Character size W x H standard 1 2 x 3 1 mm 1 6 x 3 1 mm 2 7 x 2 7 mm 1 2 x 9 5 mm 1 6 x 9 6 mm not including horizontal spacing 95 Alphanumeric 48 International 128 x 12 Graphic Print font Japanese Kanji only 128 x 15 Graphic 2 pass printing font Japanese Kanji 6879 JIS X0208 1990 special font Ghardelarset 83 JIS code 2D 21 2D 7E Shift JIS code 87 40 87 9D Simplified Chinese 28553 GB18030 2000 Traditional Chinese 13494 Big 5 Korean Kanji 8366 KSC5601 type 3 pass printing font Thai character 128 characters x 7 pages 133 character types A Font A 7 x 9 16 cpi Font B 9 x 9 13 3 cpi Thai characters 7 x 27 once peninen 16 cpi Thai characters 9 x 27 13 3 cpi 3 half dot spacing kanji 16 x 16 8 9 cpi 2 half dot spacing Dimensions mm 57 5 0 5 69 5 0 5 76 0 5 Paper Normal paper mm Thierness 0 06 0 085 1 sheet Pressure sensetive paper Thickness 0 05 0 08 1 sheet total thickness must be 0 14 mm or less Number of copies Original 1 sheet one copy sheet Ribbon cassettes ERC 38 P Purple life 4 000 000 characters ERC 38 B Black life 3 000 000 characters ERC 38 B R Black Red life Black 1 500 000 Red 750 000 characters Life based on continuous printing at 25 C 77 F Print speed Paper width 76 mm
96. wel to the right as shown When you select full cut you have to adjust the dowel to left as shown Cutter unit Partial cut Full cut Co Cc CD C 6 Tighten the two screws Set again the roll paper cover and set the shaft which is taken out in step 2 7 Q Note Q Execute the self test to confirm the cutter action See page 2 2 5 4 Adjustment and Setting Rev B 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 Disassembly Items Requiring Platen Gap Adjustment of the Printer T When you have replaced or removed the platen assembly T When you loosened the screws fastening the carriage unit T When you replaced or removed the print head Q Note Do not use the once removed shaft holder adjustment roller again Also perform platen gap adjustment by the standard of Falling with 0 45 mm thickness gauge no fall with 0 55 mm thichness gauge 1 2 Rev B Open the frame platen rotation and tighten the shaft holder adjustment roller firmly Hold up the frame platen rotation and make sure the shaft holder adjustment roller is tightened firmly on the both sides Move the printing head unit to the left insert the gauge from the left side and adjust the gap while ro

Confidential

Contents

Download Pdf Manuals

Related Search

Related Contents