Lexmark 1020 manual 4078-00X

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4078-00X

Second Edition (July, 1996)

The following paragraph does not apply to the United Kingdom or any country where such provisions are inconsistent with local law: LEXMARK INTERNATIONAL, INC. PROVIDES THIS PUBLICATION “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Some states do not allow disclaimer of express or implied warranties in certain transactions, therefore, this statement may not apply to you.

This publication could include technical inaccuracies or typographical errors. Changes are periodically made to the information herein; these changes will be incorporated in later editions of the publication. Improvements or changes in the products or the programs described in this publication may be made at any time. Publications are not stocked at the address given below; requests for publications should be made to your point of purchase.

Comments may be addressed to Lexmark International, Inc., Department D22A/035-3, 740 New Circle Road, Lexington, Kentucky 40550, U.S.A. Lexmark may use or distribute any of the information you supply in any way it believes appropriate without incurring any obligation to you.

Lexmark is a trademark of Lexmark International, Inc., registered in the United States and/or other countries.

Color Jetprinter is a trademark of Lexmark International, Inc.

Other trademarks are the property of their respective owners.

© Copyright Lexmark International, Inc. 1995, 1996. All Rights Reserved.

UNITED STATES GOVERNMENT RESTRICTED RIGHTS

This software and documentation are provided with RESTRICTED RIGHTS. Use, duplication or disclosure by the Government is subject to restrictions as set forth in subparagraph (c)(1)(ii) of the Rights in Technical Data and Computer Software clause at DFARS 252.227-7013 and in applicable FAR provisions: Lexmark International, Inc., Lexington KY 40550.

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Contents 4078-00X 4078-00X Contents Connector Locations Safety Information PrefaceNorme di sicurezza SicherheitshinweiseConsignes de Sécurité Informações de Segurança Pautas de SeguridadSikkerhedsoplysninger Chinese Safety Information Korean Safety Information General Information Power ConsumptionMaintenance Approach Unique Tools Required For Service AbbreviationsDiagnostic Information StartError Indicator Table Power-On Self Test Post SequencePost Symptom Table Symptom ActionSymptom Tables Carrier Transport Problems4078-00X Paper Feed Problems Service Checks Carrier Transport Service CheckEnvelope Feed Service Check Perform the EOF and Home Position SensorsMaintenance Station Service Check Paper Feed Service Check Also check for loose or worn motor gear Paper Path Service Check Home Position Sensors Test on page 3-2, toParallel Port Service Check Power Service CheckPrint Quality Service Check FRU / Function ActionMaintenance 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 Repair Information Handling ESD-Sensitive PartsReleasing Plastic Latches AdjustmentsRemoval Procedures Carrier Belt Removal Access Cover RemovalBase Assembly Removal Carrier Frame Assembly Removal Carrier Home Sensor RemovalDrive Train Assembly Removal Carrier Transport Motor RemovalFront Cover Removal Gutter Pad 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 Small Feed Roll Assembly Removal Sheet Feeder RemovalSmall Feed Roll Bracket Assembly Removal System Board Removal Connector Locations System Board Connectors Connector Connector Names Preventive Maintenance Lubrication SpecificationsHow To Use This Parts Catalog 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 Index PostEmea USA