Lexmark 4076-0XX manual Inside Idler Gears Removal, Large Feed Roller Assembly Removal

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4076-0XX

Inside Idler Gears Removal

1.Remove the top cover.

2.Remove the auto sheet feed.

3.Disconnect the print head cables from the system board. You may have to open the print head cable connectors on the system board first, then disconnect the cables.

4.Remove the paper guide.

5.Remove the C-clip from the feed arm assembly and remove the feed arm assembly.

6.Pull the idler gears off the mounting studs.

Large Feed Roller Assembly Removal

1.Remove the top cover.

2.Disconnect the print head cables from the system board. You may have to open the print head cable connectors on the system board first, then disconnect the cables.

3.Disconnect connectors J4, J5, and J6 from the system board. 4. Remove the machine from the base. To do this, push the frame latches out as you lift the machine from the base. Set the machine aside.

4.Place the machine on its front with the bottom facing you.

5.Disconnect the 3 springs from the bottom of the middle frame assembly.

6.Remove the large feed roller assembly.

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Contents •Manuals Menu •Table of Contents •Start Diagnostics•Safety and Notices •Trademarks •Index 4076-0XXCopyright Lexmark International, Inc. 1994, 4076-0XXSecond Edition May, All Rights ReservedContents Repair Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . How To Use This Parts Catalog 4076-0XXFederal Communications Commission FCC Statement Notices and Safety InformationElectronic Emission Notices The United Kingdom Telecommunications Act Industry Canada Compliance StatementAvis de conformité aux normes d’Industrie Canada viii Safety InformationJapanese VCCI Notice Norme di sicurezza SicherheitshinweiseConsignes de Sécurité Informació de Seguretat Pautas de SeguridadInformações de Segurança Chinese Safety Information Korean Safety Information • • • • Power ConsumptionGeneral Information Options Maintenance Approach• • • Unique Tools Required For Service Abbreviations1.Run the “Test Page” on page Diagnostic InformationStart Alternating Light Pattern Error Indicator TableError ActionGo to the “Maintenance Station Service Check” on pagePower-on-self-testPost Sequence POST Symptom Table SymptomCommunications Problem Symptom TablesCarrier Transport Problems Maintenance Station ProblemsPrint Quality Problems 4076-0XX Paper Feed ProblemsPower Problems First Print Line Service Check Service ChecksEnvelope Feed Service Check 4076-0XX SIMM ProblemMaintenance Station Service Check Operator Panel Service Check Paper Feed Service Check • • • • •Paper Feed Motor 4076-0XX Paper Path Service Check Run the “Serial Adapter Test” on Parallel Port Service Checkcan print. Run the “Parallel Port Test” Power Service Check Print Quality Service Check Perform the “Purge Test” on page“Maintenance Station Service Check” Alignment Adjustment” on pageFRUU or PROCEDURE Simm Service CheckTransport Service Check the “Maintenance Station Service Perform the “Encoder Sensor Test” onPrint Fonts Test Diagnostic AidsDemo Test Purge Test Print NvramTest Page Paper Sensor TestEncoder Sensor Test Hex PrintParallel Port Test Initialize NvramSerial Adapter Test Repair Information Handling Esd-sensitivePartsAdjustments Bi-directionalAlignment AdjustmentRemoval Procedures Releasing Plastic LatchesAuto Sheet Feed ASF Assembly Removal ASF Envelope Buckler And Pick Roller Hub RemovalCarrier Removal ASF Right And Left Edge Guide Assemblies RemovalASF Paper Load Lever Removal Carrier Transport Motor Removal Carrier Transport Belt RemovalCarrier Guide Removal Carrier Transport Motor Frame Removal Encoder Strip RemovalEnd-of-formsFlag Removal Exit Roller Assembly RemovalFeed Arm Assembly Removal Eprom RemovalLarge Feed Roller Assembly Removal Inside Idler Gears RemovalLeft Side Frame Removal Operator Panel Removal Maintenance Drive And Rocker Assemblies RemovalMiddle Frame Removal Paper Feed Motor Removal Outside Idler Gears RemovalPaper Ejectors Removal Paper Guide RemovalPower Supply Removal Paper Release Lever RemovalPrint Head Cable Removal Right Side Frame Removal Star Roller Removal Small Feed Roller Assembly RemovalRubber Backer Removal System Board Removal Top Cover Removal Connector Connector LocationsSystem Board Connectors Connector NamesCode Module Maintenance MotorFLASH/RAM SIMM Option • • • • • • • Preventive MaintenanceLubrication Specifications How To Use This Parts Catalog Parts Catalog4076-0XX Assembly 1: Covers 9 7 4 8 2 6 Units Asm.Part Description4076-0XX Assembly 2: Frames 7 2 3 4 5 1 6 Part 4076-0XX Assembly 3: Paper Feed 1 3 2 4 5 6 7 8 9 Part 4076-0XX Assembly 3: Paper Feed Cont Part 4076-0XX Assembly 4: Electronics 5 4 4 3 2 10 9 1 8 11 6 7Part 4076-0XX Assembly 4: Electronics Cont 5 4 4 3 2 10 9Part 4076-0XX Assembly 4 Electronics Cont 12 13 12 9 10 11Part 4076-0XX Assembly 5: Carrier Unit 4076-0XX Assembly 6: Carrier Transport 2 6 3Part 8 4 7 4076-0XX Assembly 7: Auto Sheet Feed 6 310 13 12 2 5 1 14 9Part 4076-0XX Assembly 8: Maintenance Station 3 1 2 4 Part 4076-0XX Assembly 9: Options 1 Part Index Unique Tools