Lexmark 1020 manual Preface, Safety Information

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4078-002

Preface

This manual is divided into the following chapters:

1.General Information contains a general description of the printer and the maintenance approach used to repair it. Special tools and test equipment are listed in this chapter, as well as general environmental and safety instructions.

2.Diagnostic Information contains error indicator table, symptom table, and service checks used to isolate failing field replaceable units (FRUs).

3.Diagnostic Aids contains tests and checks used to locate or repeat symptoms of printer problems.

4.Repair Information provides instructions for making printer adjustments and removing and installing FRUs.

5.Connector Locations uses illustrations to identify the connector locations and test points on the printer.

6.Preventive Maintenance contains the lubrication specifications and recommendations to prevent problems.

7.Parts Catalog contains illustrations and part numbers for indi- vidual FRUs.

Safety Information

The maintenance information for this product has been prepared for use by a professional service person and is not intended to be used by others.

There may be an increased risk of electric shock and personal injury during disassembly and servicing of this product. Professional service personnel should understand this and take necessary precautions.

The safety features of some parts may not always be obvious. Therefore, replacement parts must have the identical or equivalent characteristics as the original parts.

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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