Lexmark X125 Manuel utilisateur

4412-00X

Lexmark and Lexmark with diamond

design are trademarks of Lexmark

International, Inc., registered in the

United States and/or other countries.

• Table of Contents

•Index

• Safety and Notices

• Trademarks

• Start Diagnostics

Lexmark X125

All-In-One

Edition: November 2002

The following paragraph does not apply to 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. Improvements or changes in the products or the programs described may be

made at any time.

Comments may be addressed to Lexmark International, Inc., Department D22A/032-2,

740 West New Circle Road, Lexington, Kentucky 40550, U.S.A or e-mail at

ServiceInfoAndTraining@Lexmark.com. Lexmark may use or distribute any of the

information you supply in any way it believes appropriate without incurring any obligation

to you. You can purchase additional copies of publications related to this product by

calling 1-800-553-9727. In other countries, contact your point of purchase.

Lexmark and Lexmark with diamond design are trademarks of Lexmark International,

Inc., registered in the United States and/or other countries.

Other trademarks are the property of their respective owners.

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.

4412-00X

P/N 12G9185

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Table of Contents

Safety Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .v

Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .x

General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Printer Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Printhead. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Facsimile. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Scanner. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

Power and Size. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

Diagnostic Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Power-On Self Test (POST) Sequence . . . . . . . . . . . . . . . . . 2-1

POST Symptom Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Symptom Tables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Service Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

Carrier Transport Service Check. . . . . . . . . . . . . . . . . . . . . . . 2-7

CIS Assembly Service Check . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

Scanner Motor with Gear Assembly Service Check . . . . . . . 2-10

Maintenance Station Service Check. . . . . . . . . . . . . . . . . . . 2-11

Paper Feed Service Check. . . . . . . . . . . . . . . . . . . . . . . . . . 2-12

Paper Path Service Check . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14

Power Service Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15

Print Quality Service Check . . . . . . . . . . . . . . . . . . . . . . . . . 2-16

Scan/Copy Quality Service Check . . . . . . . . . . . . . . . . . . . . 2-18

Fax/Telephone Communication Service Check . . . . . . . . . . 2-19

Diagnostic Aids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Theory of Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Scanner Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Drive Feed Roller Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Contact Image Sensor (CIS). . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Document Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Repair Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Handling ESD-Sensitive Parts . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Removal Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

iv Service Manual

4412-001

Releasing Plastic Latches . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2

Removals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3

General Precautions on Removals. . . . . . . . . . . . . . . . . . . . . .4-3

CIS White Roller Assembly Removal. . . . . . . . . . . . . . . . . . . .4-4

Top Cover Assembly Removal. . . . . . . . . . . . . . . . . . . . . . . . .4-5

Rollers (Drive Feed Roller Assembly, Exit Shaft) Removal . . .4-6

CIS (Contact Image Sensor) Removal. . . . . . . . . . . . . . . . . . .4-7

Scanner Motor with Gear Assembly Removal . . . . . . . . . . . . .4-9

Power Supply Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-11

Line Interface Board Removal . . . . . . . . . . . . . . . . . . . . . . . .4-12

Operator Panel Assembly Removal. . . . . . . . . . . . . . . . . . . .4-13

Printer Unit Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-14

ASF Assembly Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-15

Maintenance Station Removal . . . . . . . . . . . . . . . . . . . . . . . .4-17

Carrier Assembly with Belt Removal . . . . . . . . . . . . . . . . . . .4-18

System Board Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-19

Mid Frame Assembly with Exit Rollers Removal . . . . . . . . . .4-20

Large Feed Roller Assembly with Gear Removal . . . . . . . . .4-21

Paper Feed Motor Assembly with Gears Removal . . . . . . . .4-22

Carrier Transport Motor Removal. . . . . . . . . . . . . . . . . . . . . .4-23

Connector Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1

System Board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1

Line Interface Board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-2

Power Supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-3

Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1

Lubrication Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1

Parts Catalog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-1

How to Use This Parts Catalog . . . . . . . . . . . . . . . . . . . . . . . . . .7-1

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-1

Safety Information v

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Safety Information

•The safety of this product is based on testing and approvals of

the original design and specific components. The manufacturer

is not responsible for safety in the event of use of unauthorized

replacement parts.

•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.

Consignes de Sécurité

•La sécuritéde ce produit repose sur des tests et des

agréations portant sur sa conception d'origine et sur des

composants particuliers. Le fabricant n'assume aucune

responsabilitéconcernant la sécuritéen cas d'utilisation de

pièces de rechange non agréées.

•Les consignes d'entretien et de réparation de ce produit

s'adressent uniquement àun personnel de maintenance

qualifié.

•Le démontage et l'entretien de ce produit pouvant présenter

certains risques électriques, le personnel d'entretien qualifié

devra prendre toutes les précautions nécessaires.

vi Service Manual

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Norme di sicurezza

•La sicurezza del prodotto si basa sui test e sull'approvazione

del progetto originale e dei componenti specifici. Il produttore

non èresponsabile per la sicurezza in caso di sostituzione non

autorizzata delle parti.

•Le informazioni riguardanti la manutenzione di questo prodotto

sono indirizzate soltanto al personale di assistenza autorizzato.

•Durante lo smontaggio e la manutenzione di questo prodotto,

il rischio di subire scosse elettriche e danni alla persona èpiù

elevato. Il personale di assistenza autorizzato, deve, quindi,

adottare le precauzioni necessarie.

Sicherheitshinweise

•Die Sicherheit dieses Produkts basiert auf Tests und

Zulassungen des ursprünglichen Modells und bestimmter

Bauteile. Bei Verwendung nicht genehmigter Ersatzteile wird

vom Hersteller keine Verantwortung oder Haftung für die

Sicherheit übernommen.

•Die Wartungsinformationen für dieses Produkt sind

ausschließlich für die Verwendung durch einen

Wartungsfachmann bestimmt.

•Während des Auseinandernehmens und der Wartung des

Geräts besteht ein zusätzliches Risiko eines elektrischen

Schlags und körperlicher Verletzung. Das zuständige

Fachpersonal sollte entsprechende Vorsichtsmaßnahmen

treffen.

Safety Information vii

4412-00X

Pautas de Seguridad

•La seguridad de este producto se basa en pruebas y

aprobaciones del diseño original y componentes específicos.

El fabricante no es responsable de la seguridad en caso de uso

de piezas de repuesto no autorizadas.

•La información sobre el mantenimiento de este producto está

dirigida exclusivamente al personal cualificado de

mantenimiento.

•Existe mayor riesgo de descarga eléctrica y de daños

personales durante el desmontaje y la reparación de la

máquina. El personal cualificado debe ser consciente de este

peligro y tomar las precauciones necesarias.

Informações de Segurança

•A segurança deste produto baseia-se em testes e aprovações

do modelo original e de componentes específicos. O fabricante

não éresponsável pela segunrança, no caso de uso de peças

de substituição não autorizadas.

•As informações de segurança relativas a este produto

destinam-se a profissionais destes serviços e não devem ser

utilizadas por outras pessoas.

•Risco de choques eléctricos e ferimentos graves durante a

desmontagem e manutenção deste produto. Os profissionais

destes serviços devem estar avisados deste facto e tomar os

cuidados necessários.

viii Service Manual

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Informacióde Seguretat

•La seguretat d'aquest producte es basa en l'avaluaciói

aprovaciódel disseny original i els components específics.

El fabricant no es fa responsable de les qüestions de

seguretat si s'utilitzen peces de recanvi no autoritzades.

•La informaciópel manteniment d’aquest producte està

orientada exclusivament a professionals i no estàdestinada

a ningúque no ho sigui.

•El risc de xoc elèctric i de danys personals pot augmentar

durant el procés de desmuntatge i de servei d’aquest producte.

El personal professional ha d’estar-ne assabentat i prendre

les mesures convenients.

Safety Information ix

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xService Manual

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Preface

This manual and contains maintenance procedures for service

personnel. It 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 an error indicator table,

symptom tables, 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

individual FRUs.

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