Epson 1170 Service Manual

EPSONLX-300+/11709-pin Serial Impact Dot Matrix PrinterSEDM997003®SERVICE MANUALLX-300+LX-1170

LX-300+/1170 Revision CPRODUCT DESCRIPTIONSPECIFICATIONS 101.2 SPECIFICATIONS1.2.1 Printing Specificationo Print method: Impact dot matrixo Number of

Product Name Revision CMaintenance Maintenance 98Figure 6-1. Left Frame AssemblyFigure 6-2. Teeth of Gears at the Left FrameFigure 6-3. Shafts at the

Product Name Revision CMaintenance Maintenance 99Figure 6-5. PF Roller AssemblyFigure 6-6. Paper Guide AssemblyFigure 6-7. Tractor AssemblyFigure 6-8.

Product Name Revision CMaintenance Maintenance100Figure 6-9. CarriageFigure 6-10. CR Motor AssemblyFigure 6-11. Combination Gear 17.5, 27Figure 6-12.

CHAPTER197APPENDIX

LX-300+/1170 Revision CAppendixConnector Summary1047.1 Connector Summary7.1.1 Major Component UnitThe figure below illustrates how the primary compone

LX-300+/1170 Revision CAppendixConnector Summary105Table 7-4. Connector Pin Assignments - CN5Pin I/O Signal Name Function1 I RELEASE Release sensor si

LX-300+/1170 Revision CAppendixConnector Summary106Table 7-10. Connector Pin Assignments - CN11Pin I/O Signal Name Function1 O PFA Paper feed motor ph

LX-300+/1170 Revision CAppendix EEPROM Address Map1077.2 EEPROM Address MapThis section provides the EEPROM address map.NOTE: The data of two or more

LX-300+/1170 Revision CAppendix EEPROM Address Map10826H,27H0000H 0000H28H,29HPage langth for CSF1 to 22x432 by 0.0588mm (1/432inch)0000H: 558.8mm (22

LX-300+/1170 Revision CAppendix EEPROM Address Map10945HSoftware0slashBuzzer----Auto CR------------b0: Software(0:ESC/P 1:IBM 2381 Plus)b1: 0 slash (0

LX-300+/1170 Revision CPRODUCT DESCRIPTIONSPECIFICATIONS 11oControl code: ESC/P and IBM 2380 Plus emulation(Refer to 1.5 "Control codes")NLQ

LX-300+/1170 Revision CAppendix EEPROM Address Map11057H Reserved 00H 00H58H *ACK timing dataRefer to Appendix E. I/F timingdata00H 01H59H*ACK timing

LX-300+/1170 Revision CAppendixComponent Layout1117.3 Component LayoutComponent layouts for each electric circuit board are shown as follows.C294 MAIN

LX-300+/1170 Revision CAppendixComponent Layout112C294 MAIN-B BOARDFigure 7-3. Component Layout-C294 MAIN-B Board

LX-300+/1170 Revision CAppendixComponent Layout113C294PSB BOARDFigure 7-4. Component Layout-C294PSBC294PSE BOARDFigure 7-5. Component Layout-C294PSE

LX-300+/1170 Revision CAppendixComponent Layout114C294PNL BOARDFigure 7-6. Component Layout-C294PNL

LX-300+/1170 Revision CAppendix Exploded Diagrams1157.4 Exploded Diagramso LX-300+ Exploded DiagramsFigure 7-7. LX-300+ Exploded Diagram 1127(126/for

LX-300+/1170 Revision CAppendix Exploded Diagrams116Figure 7-8. LX-300+ Exploded Diagram 2LX-300+ No.02 Rev.01 10

LX-300+/1170 Revision CAppendix Exploded Diagrams117oLX-1170 Exploded DiagramsFigure 7-9. LX-1170 Exploded Diagram 1LX-1170 No.01 Rev.01 10309

LX-300+/1170 Revision CAppendix Exploded Diagrams118Figure 7-10. LX-1170 Exploded Diagram 2LX-1170 No.02

LX-300+/1170 Revision CAppendix Parts List1197.5 Parts ListThe following table shows parts name of this product. Refer to the exploded diagrams forpar

LX-300+/1170 Revision CPRODUCT DESCRIPTIONSPECIFICATIONS 12oCharacter tables:nStandard version (13 character table)Italic table PC437 (US, Standard Eu

LX-300+/1170 Revision CAppendix Parts List120515 “GROUNDING WIRE,PLATEN”516 “PULLEY ASSY.,DRIVEN”517 “HARNESS,HP”518 C.P.B SCREW520 PAPER GUIDE521 “DE

LX-300+/1170 Revision CAppendix Parts List121oParts list for LX-1170570 PAPER EJECT ASSY.571 “COMBINATION GEAR,17.5,27”573 “GROUNDING PLATE,CS”574 “GR

LX-300+/1170 Revision CAppendix Parts List122450 "BOARD ASSY.,PANEL"451 "SHEET,PANEL"300 "BOARD ASSY.,POWER SUPPLY"320 H

LX-300+/1170 Revision CAppendix Parts List123545 "PAPER GUIDE,LOWER"546 "PAPER GUIDE,UPPER"547 "BASE,PAPER EJECT"549 &qu

LX-300+/1170 Revision CAppendix Electric Circuit Schematics1247.6 Electric Circuit Schematicso C294MAIN Boardo C294MAIN-B Boardo C294PSB Boardo C294PS

LX-300+/1170 Revision CPRODUCT DESCRIPTIONSPECIFICATIONS 13oCharacter tables and typefaces:Table 1-3. Character Tables and TypefacesCharacter table Bi

LX-300+/1170 Revision CPRODUCT DESCRIPTIONSPECIFICATIONS 141.2.2 Paper Feedingo Feeding method: Friction feed (rear)Push tractor feed (rear)Push and P

LX-300+/1170 Revision CPRODUCT DESCRIPTIONSPECIFICATIONS 154 (0.0154) (0.0205)over 0.39up to 0.52(0.0102) (0.0130)over 0.26up to 0.335 - - - (0.0130)

LX-300+/1170 Revision CPRODUCT DESCRIPTIONSPECIFICATIONS 161.2.3 Electrical Specificationo 120 V versionnRated voltage: AC 120VnInput voltage range: A

LX-300+/1170 Revision CPRODUCT DESCRIPTIONSPECIFICATIONS 17nCyan 0.7 million characters (Draft 10 cpi, 14 dots/character)nYellow 0.5 million character

LX-300+/1170 Revision CPRODUCT DESCRIPTIONSPECIFICATIONS 181.2.9 Printable Areao Cut sheetsFigure 1-2. Printable Area for Cut SheetP r i n t a b l e

LX-300+/1170 Revision CPRODUCT DESCRIPTIONSPECIFICATIONS 19oEnvelopFigure 1-3. Printable Area for EnvelopoContinuous paperFigure 1-4. Printable Area f

Noticeo All rights reserved. No part of this manual may be reproduced, stored in a retrieval system, or transmitted in any form or by any means electr

LX-300+/1170 Revision CPRODUCT DESCRIPTIONSPECIFICATIONS 20oRoll paperFigure 1-5. Printable Area for Roll PaperRM (Right Margin) LX-300+:13 mm or more

LX-300+/1170 Revision CPRODUCT DESCRIPTION Interface Specifications 211.3 Interface SpecificationsLX-300+/1170 provides bi-directional 8 bit parallel

LX-300+/1170 Revision CPRODUCT DESCRIPTION Interface Specifications 22oBUSY signal is active (HIGH level) under the conditions below:nIn the process o

LX-300+/1170 Revision CPRODUCT DESCRIPTION Interface Specifications 231.3.2 Parallel Interface (Reverse Channel)o Transmission mode: IEEE-1284 nibble

LX-300+/1170 Revision CPRODUCT DESCRIPTION Interface Specifications 241.3.3 Serial Interfaceo Synchronization: Asynchronouso Signal level: EIA-232DMAR

LX-300+/1170 Revision CPRODUCT DESCRIPTION Interface Specifications 251.3.4 Interface SelectionThe printer has 2 interfaces; the parallel interface an

LX-300+/1170 Revision CPRODUCT DESCRIPTIONOperation 261.4 Operation1.4.1 Control Panel4 switches and 4 LEDs are on the panel as shown below.Figure 1-7

LX-300+/1170 Revision CPRODUCT DESCRIPTIONOperation 27oOperation in default setting modeThe following switches are used in default setting mode;1.4.1.

LX-300+/1170 Revision CPRODUCT DESCRIPTIONOperation 281.4.2 Functions1.4.2.1 Usual Operationo Pause-This switch alternates printer activity between pr

LX-300+/1170 Revision CPRODUCT DESCRIPTIONOperation 295. Select setting value by LF/FF button.Tear Off/ Bin LEDs and Paper Out LED show that menu’s va

PRECAUTIONSPrecautionary notations throughout the text are categorized relative to 1)Personal injury and 2) damage to equipment.DANGER Signals a preca

LX-300+/1170 Revision CPRODUCT DESCRIPTIONOperation 303. Fix the selected number by pressing Tear Off switch.Selected number is fixed and the next ali

LX-300+/1170 Revision CPRODUCT DESCRIPTIONControl codes 311.5 Control codes1.5.1 ESC/P2Table 1-20. ESC/P2Classification Operation CommandGeneral Opera

LX-300+/1170 Revision CPRODUCT DESCRIPTIONControl codes 321.5.2 IBM 2390 Plus EmulationTable 1-21. IBM 2390 Plus emulationClassification Operation Com

LX-300+/1170 Revision CPRODUCT DESCRIPTIONControl codes 331.5.3 Bi-Directional Commandso Reply printer IDReply printer ID: [ESC][SOH]@EJL[SP]ID[CR][LF

LX-300+/1170 Revision CPRODUCT DESCRIPTIONControl codes 34*4 m2 and m3 apply to the following ID number. (See Table 1-24 & Table 1-25.)*5 m1=0 to

LX-300+/1170 Revision CPRODUCT DESCRIPTIONControl codes 351.5.3.1 Reply Printer StatusThe printer sends back one of the five strings shown below accor

LX-300+/1170 Revision CPRODUCT DESCRIPTIONControl codes 36oPaper_patho characteristic status codeo MIB proxy information“1G:”“0305NA,” Sheet feeder bi

LX-300+/1170 Revision CPRODUCT DESCRIPTION Initialization 371.6 Initializationo Power-on initializationThe initialization of this level is activated b

LX-300+/1170 Revision CPRODUCT DESCRIPTION Paper Specifications 381.7 Paper Specificationso Cut sheet (single sheet, not multi part)o Cut sheet (multi

LX-300+/1170 Revision CPRODUCT DESCRIPTION Paper Specifications 39oEnvelopeTable 1-34. EnvelopeoContinuous paper (Single sheet and Multipart)Table 1-3

About This ManualThis manual describes basic functions, theory of electrical and mechanical operations, maintenance and repair procedures of the print

LX-300+/1170 Revision CPRODUCT DESCRIPTION Paper Specifications 40oLabelsTable 1-36. Continuous Paper with LabelsFigure 1-8. Printable Area - LabeloRo

LX-300+/1170 Revision CPRODUCT DESCRIPTION Physical Specifications 411.8 Physical Specifications1.8.1 Physical Specifications for LX-300+o Physical Sp

LX-300+/1170 Revision CPRODUCT DESCRIPTION Physical Specifications 421.8.2 Physical Specifications for LX-1170o Physical Specifications for World Wide

LX-300+/1170 Revision CPRODUCT DESCRIPTION Accessories 431.9 AccessoriesTable 1-38. Enclosed PartsEnclosed Items QuantityUser's manual 1Driver di

CHAPTER2OPERATINGPRINCIPLES

LX-300+/1170 Revision COperating PrinciplesOverview 452.1 OverviewLX-300+/1170 consists of the printer mechanism and electric circuit boards.Figure 2-

LX-300+/1170 Revision COperating Principles Printer Mechanism 462.2 Printer MechanismThe following is main components of the LX-300+/1170 printer mech

LX-300+/1170 Revision COperating Principles Printer Mechanism 472.2.1 PrintheadThe table below shows the printhead specifications.Figure 2-3. Wire Con

LX-300+/1170 Revision COperating Principles Printer Mechanism 482.2.2 Carriage MechanismThe following is the components of the LX-300+/1170 carriage m

LX-300+/1170 Revision COperating Principles Printer Mechanism 49- Carriage Speed ModeCarriagespeedmodeCR drive

Revision StatusRevision Issued Date DescriptionA May 11, 2000 First ReleaseB April 5, 2001Revision:• Page -70 “Warning and caution messages” added.• P

LX-300+/1170 Revision COperating Principles Printer Mechanism 50CARRIAGE HOME POSITION (HP) DETECTORThe table below is the HP detector specifications.

LX-300+/1170 Revision COperating Principles Printer Mechanism 51Figure 2-4. Color Ribbon Driving MechanismRIBBON CARTRIDGE DETECTORRibbon detector det

LX-300+/1170 Revision COperating Principles Printer Mechanism 52COLOR MECHANISM INITIALIZATIONThe printer mechanism initializes when the power is appl

LX-300+/1170 Revision COperating Principles Printer Mechanism 532.2.5 Paper Feed MechanismThis mechanism consists of paper feed motor (PF motor), pape

LX-300+/1170 Revision COperating Principles Printer Mechanism 54RPE DETECTORRPE detector is installed on the paper path at the back of the printer. Th

LX-300+/1170 Revision COperating Principles Printer Mechanism 552.2.6 Release MechanismThis mechanism switches the flow of PF motor driving forth betw

LX-300+/1170 Revision COperating Principles Electrical Circuit Operating Principles 562.3 Electrical Circuit Operating Principles2.3.1 MAIN Board Elec

LX-300+/1170 Revision COperating Principles Electrical Circuit Operating Principles 57oC294 MAIN-B Block DiagramFigure 2-8. C294 MAIN-B Board Block Di

LX-300+/1170 Revision COperating Principles Electrical Circuit Operating Principles 582.3.2 C294PSB / C294PSE BoardLX-300+/1170 generates power supply

LX-300+/1170 Revision COperating Principles Electrical Circuit Operating Principles 59NOTE: *: Core voltage of CPU and G/A is 3.3V and it is generated

CONTENTSChapter 1 PRODUCT DESCRIPTION1.1 FEATURES ...

CHAPTER3TROUBLESHOOTING

LX-300+/1170 Revision CTroubleshootingOverview 613.1 OverviewThis chapter describes how to troubleshoot problems when any problems occurred to theprin

LX-300+/1170 Revision CTroubleshootingTroubleshooting 623.2 Troubleshooting3.2.1 Initialization CheckBefore troubleshooting, check the following basic

LX-300+/1170 Revision CTroubleshootingTroubleshooting 63oRelease Lever ErrorThis error will be indicated when wrong release lever operation is perform

LX-300+/1170 Revision CTroubleshootingTroubleshooting 64Table 3-3. Control Panel LED Does Not Light On.Cause Check Point Y/N SolutionBlowout of a fuse

LX-300+/1170 Revision CTroubleshootingTroubleshooting 65Ribbon mechanism isdefective.Is ribbon advancedproperly?NO Replace the ribbon mechanism parts.

LX-300+/1170 Revision CTroubleshootingTroubleshooting 663.2.4 Unit and Parts CheckThis section describes the checking method of the printhead, motors

LX-300+/1170 Revision CTroubleshootingTroubleshooting 673.2.4.2 Motor CheckBy measuring the direct current resistance of the motor coil, you can check

LX-300+/1170 Revision CTroubleshootingTroubleshooting 683.2.4.4 Printhead Driver CheckSimple check of the printer driver (Q3 ~ Q11) can be done by the

CHAPTER4DISASSEMBLYANDASSEMBLY

2.3.2 C294PSB / C294PSE Board ... 582.3.2.1 Electric Circuit ...

LX-300+/1170 Revision CDisassembly and AssemblyOverview 704.1 OverviewThis chapter explains the disassembly and assembly of LX-300+/1170.Read the prec

LX-300+/1170 Revision CDisassembly and AssemblyOverview 71Table 4-3. List of ScrewsScrew Name Screw NameC.B.P., Tite, 3x10 F/ZN C.P., Screw, 3x4 F/ZNC

LX-300+/1170 Revision CDisassembly and AssemblyOverview 724.1.3 Service Checks After RepairBefore returning the printer back to the user, use the chec

LX-300+/1170 Revision CDisassembly and Assembly Disassembly and Assembly 734.2 Disassembly and AssemblyThis section explains the disassembly and assem

LX-300+/1170 Revision CDisassembly and Assembly Disassembly and Assembly 744.2.1 Printhead Removal1. Remove the cover of the printer.2. Remove 1 screw

LX-300+/1170 Revision CDisassembly and Assembly Disassembly and Assembly 754.2.2 Upper Housing Removal1. Remove platen knob, cover assembly, printer,

LX-300+/1170 Revision CDisassembly and Assembly Disassembly and Assembly 764.2.3 Printer Mechanism Removal1. Remove the upper housing. (See 4.2.2 &quo

LX-300+/1170 Revision CDisassembly and Assembly Disassembly and Assembly 775. Lift the printer mechanism a little bit and remove harnesses from the ma

LX-300+/1170 Revision CDisassembly and Assembly Disassembly and Assembly 784.2.4 Board Assembly and Panel Removal1. Remove the upper housing. (See 4.2

LX-300+/1170 Revision CDisassembly and Assembly Disassembly and Assembly 79Figure4-7. C294MAIN Board Assembly Removal4.2.6 C294 Power Supply Board Ass

CHAPTER1PRODUCTDESCRIPTION

LX-300+/1170 Revision CDisassembly and Assembly Disassembly and Assembly 80Figure4-9. C294 Power Supply Board Assembly Removal4.2.7 Printer Mechanism

LX-300+/1170 Revision CDisassembly and Assembly Disassembly and Assembly 814.2.7.1 CR Motor Assembly Removal1. Remove the printer mechanism. (See 4.2.

LX-300+/1170 Revision CDisassembly and Assembly Disassembly and Assembly 82Figure4-13. Platen Removal4.2.7.3 Carriage Unit Removal1. Remove the printe

LX-300+/1170 Revision CDisassembly and Assembly Disassembly and Assembly 83Figure4-15. Carriage Unit Removal5. Rotate the right and left parallelism a

LX-300+/1170 Revision CDisassembly and Assembly Disassembly and Assembly 844.2.7.4 Ribbon Feed Mechanism Removal1. Remove the printer mechanism. (See

LX-300+/1170 Revision CDisassembly and Assembly Disassembly and Assembly 854.2.7.7 HP Sensor Removal1. Remove the printer mechanism. (See 4.2.3 "

LX-300+/1170 Revision CDisassembly and Assembly Disassembly and Assembly 863. Remove the harness from the sensor (blue).Figure4-21. Release Lever Posi

LX-300+/1170 Revision CDisassembly and Assembly Disassembly and Assembly 874.2.7.11 Paper Feed Mechanism Disassembly1. Remove the printer mechanism. (

LX-300+/1170 Revision CDisassembly and Assembly Disassembly and Assembly 884.2.7.12 Paper Guide Removal1. Remove the printer mechanism. (See 4.2.3 &qu

LX-300+/1170 Revision CDisassembly and Assembly Disassembly and Assembly 89

LX-300+/1170 Revision CPRODUCT DESCRIPTIONFEATURES 91.1 FEATURESEPSON LX-300+/1170 is a 9 pin serial impact dot matrix printer. The main differencebet

CHAPTER5ADJUSTMENT

LX-300+/1170 Revision CAdjustmentOverview 895.1 OverviewThis chapter explains the adjustment required after disassembling the printer.5.1.1 Platen Gap

LX-300+/1170 Revision CAdjustmentOverview 905.1.2 Bi-D AdjustmentAdjustment programs here for LX-300+ and LX-1170 are originally used forproduction li

LX-300+/1170 Revision CAdjustmentOverview 917. The program will ask you the production line No. Ignore it and press ENTER.LX-300+: After pressing ENTE

LX-300+/1170 Revision CAdjustmentOverview 929. The destination setting menu appears. Perform settings referring to Table 5-3,“Destination Setting List

LX-300+/1170 Revision CAdjustmentOverview 9310. When you select the destination, the select menu below appears. Use ↑and↓key toshift “>” mark to th

LX-300+/1170 Revision CAdjustmentOverview 9414. The following printing pattern which shows each mode number and current Bi-Dvalues will be printed.Fig

LX-300+/1170 Revision CAdjustmentOverview 9518. When you finished adjustment, finish the program by pressing “ESC” several times.Table 5-4. Bi-D Adjus

CHAPTER6MAINTENANCE

Product Name Revision CMaintenance Maintenance 976.1 MaintenanceAppropriate maintenance is necessary to keep the printer in the best condition and pre