Lexmark 1020 manual Carrier Frame Assembly Removal, Carrier Home Sensor Removal

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4078-00X

Carrier Frame Assembly Removal

The carrier rail mounted by two screws on the carrier frame is included with the carrier frame (11A5436). The carrier rail, which is not available as a FRU, is mounted in the elongated slots at the factory. During adjustment, the rail is pushed to the rear as far as it will go, before the mounting screws are tightened.

1.Remove the front cover.

2.Remove the rear cover.

3.Remove the sheet feeder.

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

5.Remove the two screws that secure the carrier frame to the base assembly.

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

7.Remove the ground strap screw from the system board.

8.Unlatch the carrier frame from the base assembly and lift it off the base.

9.Slide the carrier frame assembly off the base assembly.

10.To replace the carrier frame, remove all associated parts from the old carrier frame and install them on the new carrier frame.

Carrier Home Sensor Removal

1.Remove the front cover.

2.Remove the rear cover.

3.Disconnect the sensor cable from the system board.

4.Remove the screw that secures the sensor to the carrier frame.

5.Remove the sensor.

Repair Information 4-4

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Contents 4078-00X 4078-00X Contents Connector Locations Preface Safety InformationConsignes de Sécurité SicherheitshinweiseNorme di sicurezza Sikkerhedsoplysninger Pautas de SeguridadInformações de Segurança Chinese Safety Information Korean Safety Information Maintenance Approach Power ConsumptionGeneral Information 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 InformationRemoval Procedures AdjustmentsReleasing Plastic Latches Base Assembly Removal Access Cover RemovalCarrier Belt Removal Carrier Home Sensor Removal Carrier Frame Assembly RemovalCarrier Transport Motor Removal Drive Train Assembly RemovalGutter Pad Removal Front Cover RemovalMaintenance Wiper and Cap Removal Maintenance Station Assembly RemovalLarge Feed Roll Removal Power Supply Removal Mid Frame Assembly RemovalPaper Feed Motor 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