Lexmark 1020 manual Mid Frame Assembly Removal, Paper Feed Motor Removal, Power Supply Removal

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4078-00X

Mid Frame Assembly Removal

1.Remove the front cover.

2.Remove the rear cover.

3.Remove the sheet feeder.

4.Remove the system board.

5.Remove the small feed roll assemblies.

6.Remove the small feed roll bracket assembly.

7.Remove the printhead carrier assembly.

8.Lift up the rear of the mid frame assembly and remove it from the carrier frame.

Paper Feed Motor Removal

1.Remove the front cover.

2.Remove the rear cover.

3.Disconnect the paper feed motor from the system board.

4.Remove the two screws mounting the paper feed motor to the drive train assembly and remove the motor.

Power Supply Removal

1.Remove the front cover.

2.Remove the rear cover.

3.Remove the sheet feeder.

4.Disconnect the power supply connector from the system board.

5.Remove the screw that secures the power supply to the carrier frame.

6.Push down on the latch at the left rear of the power supply and slide it off the base.

Repair Information 4-8

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Contents 4078-00X 4078-00X Contents Connector Locations Preface Safety InformationNorme di sicurezza SicherheitshinweiseConsignes de Sécurité Informações de Segurança Pautas de SeguridadSikkerhedsoplysninger Chinese Safety Information Korean Safety Information General Information Power ConsumptionMaintenance Approach Abbreviations Unique Tools Required For ServiceStart Diagnostic InformationPower-On Self Test Post Sequence Error Indicator TableSymptom Action Post Symptom TableCarrier Transport Problems Symptom Tables4078-00X Paper Feed Problems Carrier Transport Service Check Service ChecksPerform the EOF and Home Position Sensors Envelope Feed Service CheckMaintenance Station Service Check Paper Feed Service Check Also check for loose or worn motor gear Home Position Sensors Test on page 3-2, to Paper Path Service CheckPower Service Check Parallel Port Service CheckFRU / Function Action Print Quality Service CheckMaintenance Station Service Check on Print Quality Notice Diagnostic Aids EOF and Home Position Sensors Test Initialize Error Log Parallel Port Test Print Nvram Contents Reset Nvram to Emea Defaults Reset Nvram to USA Defaults Test Handling ESD-Sensitive Parts Repair InformationReleasing Plastic Latches AdjustmentsRemoval Procedures Carrier Belt Removal Access Cover RemovalBase Assembly Removal Carrier Home Sensor Removal Carrier Frame Assembly RemovalCarrier Transport Motor Removal Drive Train Assembly RemovalGutter Pad Removal Front Cover RemovalLarge Feed Roll Removal Maintenance Station Assembly RemovalMaintenance Wiper and Cap Removal Paper Feed Motor Removal Mid Frame Assembly RemovalPower Supply Removal Printhead Carrier Assembly Removal Rear Cover Removal Sheet Feeder Removal Small Feed Roll Assembly RemovalSmall Feed Roll Bracket Assembly Removal System Board Removal Connector Locations System Board Connectors Connector Connector Names Lubrication Specifications Preventive MaintenanceParts Catalog How To Use This Parts CatalogAssembly 1 Covers Asm Part Units Description Index Number Assembly 2 Paper Feed / Carrier Transport / Maintenance See Print Quality Notice on Assembly 3 Electronics 11A5455 System Board with ROM Assembly 3 Electronics 4078-00X Assembly 4 Carrier 4078-00X Assembly 5 Sheet Feeder 4078-00X Post IndexEmea USA