Lexmark X422 Laser MFP, 7001-001 Service Manual

7001–001

Lexmark™ X422 Laser MFP

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

• Safety and Notices

Revised: November 9, 2006

Editi on : Nove mb er 9, 20 06
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
MERCHANTABILIT Y OR FITNESS FOR A PARTICULAR PURPOSE. Some states do
not a ll o w di sc laim er o f e x pr es s or i mpl ied w a rr anti e s i n c ertai n tr a ns acti on s; the r ef or e, t hi s
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.

Comme nts 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
[e-mail]. Lexmark may use or distribute any of the
information you supply in any way it believes appropriat e without incurring any obligatio n
to you.

Ref erences in this publicati on to pr oducts, progr ams, or services do not imply that the
manufacturer intends to make these a vailable in al l countries in which it oper ates. Any
reference to a product, program, or service is not intended to stat e or imply that only th at
product, program, or service may be used. Any func tional ly equivalent produc t, program,
or servi c e that does not infringe an y existing intellectual property right may be used
inst ea d. Evaluatio n and verificatio n of op era t io n in co nj unctio n w ith ot he r pr od uc ts,
programs, or services, except those expressly designated by t he manufacturer, are the
user’ s responsibility.

Lexmark, Lexmark with diamond design, MarkNet, MarkVision, and Optra are trademarks
of Lexmark International, Inc., registered in the United States and/or other countries.

ImageQuick, Optra Forms, and PictureGrade are trademarks of Lexmark International,
Inc.

Other trademark s are the property of thei r respective owners .

© 2006 Lexmar k Inte rna tional, Inc.
All rights reserved.

UNITED STATES GOVERNMENT RIGHTS

This software and any accompanying documentation provided under this agreement are
commercial computer soft ware and docu mentation developed exclusively at priva te
expense.

7001–001

U.S.A. P/N 12G9352

7001-001

Table of Contents

Laser notices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .vii

Safety information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .x vii

Preface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xxii

Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xxii

General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Maintenance approach . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

MFP identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

MFP features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Connectivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Fonts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Memory and user flash memory . . . . . . . . . . . . . . . . . . . . . . . 1-4

Operator panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

Print area. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

Print media . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

Data streams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

Paper handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8

MFP speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9

Resolution and print quality. . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

RIP card specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11

Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11

Scanner features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12

Copier specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 -13

Fax specificati o ns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14

Ser ial number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14

Special tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 -14

Acronyms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 -15

Diagnostic information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

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

Attendance and status mess ages . . . . . . . . . . . . . . . . . . . . . . . 2-2

Operator panel overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Powe r–on s e lf test (PO ST) . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Symptom ta b le s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Service error codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13

iii

7001-001

Service checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-18

ADF service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-19

Cooling fan service check . . . . . . . . . . . . . . . . . . . . . . . . . . .2-20

Cover interlock switch service check . . . . . . . . . . . . . . . . . . .2-21

Dead machine service check . . . . . . . . . . . . . . . . . . . . . . . . .2-22

E-mail service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-23

Low voltage power supply (LVPS) service check. . . . . . . . . .2-24

Fuser service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-25

Cold fuser service check . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-26

Hot fuser service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-28

Continuity check on HVPS/cartridge . . . . . . . . . . . . . . . . . . .2-29

Main motor service check . . . . . . . . . . . . . . . . . . . . . . . . . . .2-30

Network printing service check . . . . . . . . . . . . . . . . . . . . . . .2-31

Operator panel service check. . . . . . . . . . . . . . . . . . . . . . . . .2-32

Paper feed service checks. . . . . . . . . . . . . . . . . . . . . . . . . . .2-33

Print quality ser v ic e checks . . . . . . . . . . . . . . . . . . . . . . . . . .2-39

RIP card service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-46

Scanner/copier service check . . . . . . . . . . . . . . . . . . . . . . . .2-47

Transfer roll service check . . . . . . . . . . . . . . . . . . . . . . . . . .2-48

USB service check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-48

Solving pr int quality p ro ble ms . . . . . . . . . . . . . . . . . . . . . . . . . .2-49

Using print quality test pages. . . . . . . . . . . . . . . . . . . . . . . . .2-49

Diagnostic aids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1

Menu descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1

Entering the diagnostics menu. . . . . . . . . . . . . . . . . . . . . . . . .3-1

Entering the configuration menu . . . . . . . . . . . . . . . . . . . . . . .3-1

Configuration and Diagnostic Menu . . . . . . . . . . . . . . . . . . . . .3-2

Configuration Menu Settings . . . . . . . . . . . . . . . . . . . . . . . . . .3-4

Diagnostic mode menu settings . . . . . . . . . . . . . . . . . . . . . . . .3-6

SE Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-12

Hex Trace mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-13

Flashing firmware. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-14

System shutdown for flashing or other soft resets . . . . . . . . .3-15

Flashing sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-16

Ways to flash the machine. . . . . . . . . . . . . . . . . . . . . . . . . . .3-17

Repair i nformation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1

Handling ESD-sensitive parts . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1

iv Service M anual

7001-001

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

Paper feed adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Printhead alignment adjustment . . . . . . . . . . . . . . . . . . . . . . . 4-2

Printhead registration adjustment . . . . . . . . . . . . . . . . . . . . . . 4-4

Scanner calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

Scanner registration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6

Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8

Removal procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9

MFP cover removals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9

3–pin and 2–pin connectors removal . . . . . . . . . . . . . . . . . . 4-19

Bracket, opener shutter removal. . . . . . . . . . . . . . . . . . . . . . 4 -20

Bracket, paper detect (input sensor) removal. . . . . . . . . . . . 4-21

Cartridge coupling assembly removal. . . . . . . . . . . . . . . . . . 4-22

Charge roll removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 -23

Cooling fan removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 -24

D–roll tray 1 feed removal. . . . . . . . . . . . . . . . . . . . . . . . . . . 4-25

D–roll (tray 1) shaft assembly removal . . . . . . . . . . . . . . . . . 4-26

Door latches (right side) removal . . . . . . . . . . . . . . . . . . . . . 4 -28

Duplex tray assembly removal . . . . . . . . . . . . . . . . . . . . . . . 4-29

Fuser assembly, fuser paper exit guide,

Fuser exit sensor, and fuser lamp removal. . . . . . . . . . . . . . 4-30

HVPS card removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-39

LVPS card removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-40

Lower (MPF) housing assembly removal . . . . . . . . . . . . . . . 4-41

Lower (MPF) housing assembly - paper sensor removal . . . 4- 4 2

Main drive assembly remova l . . . . . . . . . . . . . . . . . . . . . . . . 4 -44

Main dr ive moto r asse mbly r em oval. . . . . . . . . . . . . . . . . . . 4 -45

Motor assembly (stepper) removal . . . . . . . . . . . . . . . . . . . . 4 -46

MPF r oller assembly remo v al . . . . . . . . . . . . . . . . . . . . . . . . 4 -47

Operator panel removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-50

Pick pad removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-52

Printhead removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-54

Rear exit door removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 -55

Reference plate assembly removal. . . . . . . . . . . . . . . . . . . . 4 -56

RIP card cage (with card in place) removal . . . . . . . . . . . . . 4-58

Smart button sensor removal . . . . . . . . . . . . . . . . . . . . . . . . 4-63

Terminal assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . 4 -64

Tray damper and spring removal . . . . . . . . . . . . . . . . . . . . . 4 -65

Transfer roll assembly and left transfer support bearing removal.

4-66

Upper (MPF) housing assembly (with paper flag) removal. . 4- 6 6

v

7001-001

Scanner cover removals. . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 -67

Scanner ADF removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 -75

Scanner ADF motor removal. . . . . . . . . . . . . . . . . . . . . . . . . 4 -78

Scanner assembly removal. . . . . . . . . . . . . . . . . . . . . . . . . . 4-79

Scanner CCD carriage removal . . . . . . . . . . . . . . . . . . . . . . 4-82

Scanner CCD timing belt removal. . . . . . . . . . . . . . . . . . . . . 4 -84

Scanner control unit card removal . . . . . . . . . . . . . . . . . . . . 4 -86

Scanner document tray assembl y. . . . . . . . . . . . . . . . . . . . . 4-87

Scanner flatbed motor assembly removal. . . . . . . . . . . . . . . 4 -88

Scanner ADF pick roller assembly removal . . . . . . . . . . . . . 4 -91

Scanner R1 idler removal . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 -92

Scanner R2 idler removal . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 -94

Locati ons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

Cables (continued) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

Scanner cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

High voltage powe r su ppl y (H VPS) . . . . . . . . . . . . . . . . . . . . . . 5-8

Low voltage power supply (LVPS) . . . . . . . . . . . . . . . . . . . . . . . 5-9

RIP card assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10

RIP card assembly (continued) . . . . . . . . . . . . . . . . . . . . . . . . . 5-12

SCU connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14

Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-16

Scanner sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 -17

Preventive maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

Lubrication specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

Safety inspection guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

Parts catalog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

How to use this parts catalog . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

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

Part number index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .I-5

vi Service Manual

Laser notices

The following laser notice labels may be affixed to this MFP as
shown:

Laser advisory l abel

7001-001

Laser notices vii

7001-001

Laser N ot ice

The printer is cer tified in the U.S. to conform to the requirements of
DHHS 21 CFR Subchapter J for Class I (1) laser products, and
elsewhere is certified as a Class I laser product conforming to the
requirements of IEC 60825-1.

Class I laser products are not considered to be hazardous. The
printer contains internally a Class IIIb (3b) laser that is nominally a 5
milliwatt gallium arsenide laser operating in the wavelength region of
770-795 nanometers. The laser system and printer are designed so
there is never any human access to laser radiation above a Class I
level during norm al operation, user maintenanc e, or prescribed
service condition.

Laser

Der Drucker erfüllt gemäß amtlicher Bestätigung der USA die
Anforderungen der Bestimmung DHHS (Departme nt of Health and
Human Services ) 21 CFR Teil J für Laserprodukt e der Klasse I (1).
In anderen Ländern gilt der Drucker als Laserprodukt der Klasse I,
der die Anforderungen der IEC (International Electrotechnical
Commission) 60825-1 gemäß amtlicher Bestätigung erfü llt.

Laserprodukte der Klasse I gelten als unschädlich. Im Inneren des
Druckers befindet sich ein Laser der Klasse IIIb (3b), bei dem es
sich um einen Galliumarsenlaser mit 5 Milliwatt handelt, der Wellen
der Länge 770-795 Nanometer ausstrahlt. Das Lasersystem und der
Drucker sind so konzipiert, daß im Normalbetrieb , bei der Wartung
durch den Benutzer oder bei ordnungsgemäßer Wartung durch den
Kundendienst Laserbestrahlung, die die Klasse I übersteigen würde,
Menschen keinesfalls erreicht.

viii S ervice Manual

7001-001

Avis relatif à l’utilisation de laser

Pour les Etats-Unis : cette imprimante est certifiée conforme aux
provisions DHHS 21 CFR alinéa J concernant les produits laser de
Classe I (1). Pour les autres pays : cette imprimante répond aux
normes IEC 60825 -1 relatives aux produits laser de Classe I.

Les produits laser de Classe I sont considérés comme des produits
non dangereux. Cette imprimante est équipée d’un laser de Classe
IIIb (3b) (arséniure de gallium d’une puissance nominale de 5
milliwatts) émettant sur des longueurs d’onde comprises entre 770
et 795 nanomètres. L’imprimante et son système laser sont conçus
pour impossible, dans des conditions normales d’utilisation,
d’entretien par l’utilisateur ou de révision, l’exposition à des
rayonnements laser supérieurs à des rayonnements de Classe I .

Avvertenze sui prodotti laser

Questa stampante è certificata negli Stati Uniti per essere conforme
ai requisiti del DHHS 21 CFR Sottocapitolo J per i prodotti laser di
classe 1 ed è certificata negli altr i Paesi come prodotto laser di
classe 1 conforme ai requisiti della norma CEI 60825-1.

I prodotti laser di classe non sono considerati pericolosi. La
stampante contiene al suo interno un laser di classe IIIb (3b)
all’arseniuro di gallio della potenza di 5mW che opera sulla
lunghezza d’onda compres a tra 770 e 795 nanometr i. Il sistema
laser e la stampante sono stati progettati in modo tale che le
persone a contatto con la stampante, durante il normale
funzionamento, le operazioni di servizio o quelle di assistenza
tecnica, non ricevano radiazioni laser superiori al livello della
classe 1.

Laser notices ix

7001-001

Avisos sobre el láser

Se certifica que, en los EE.UU., esta impresora cumple los
requisitos para los productos láser de Clase I (1) establecidos en el
subcapítulo J de la norma CFR 21 del DHHS (Departamento de
Sanidad y Servic ios) y, en los demás países, reúne todas las
condiciones expuestas en la norma IEC 60825-1 para productos
láser de Clase I (1).

Los productos láser de Clase I no se consideran peligrosos. La
impresora contiene en su interior un láser de Clase IIIb (3b) de
arseniuro de galio de funcionamiento nominal a 5 milivatios en una
longitud de onda de 770 a 795 nanómetros. El sistema láser y la
impresora están diseñados de forma que ninguna persona pueda
verse afectada por ningún tipo de radiación láser superior al nivel de
la Clase I durante su uso normal, el mantenimiento realizado por el
usuario o cualquier otra situación de servic io técnico.

Declaração sobre Laser

A impressora está certificada nos E.U.A. em conformidade com os
requisitos da regulamentação DHHS 21 CFR Subcapítulo J para a
Classe I (1) de produtos laser. Em outros locais, está certificada
como um produto laser da Classe I, em conformidade com os
requisitos da norma IEC 60825-1.

Os produtos laser da Classe I não são considerados perigosos.
Internamente, a impressora contém um produto laser da Classe IIIb
(3b), designado laser de arseneto de potássio, de 5 milliwatts
,operando numa faixa de comprimento de onda entre 770 e 795
nanómetros. O sistema e a impressora laser foram concebidos de
forma a nunca existir qualquer possiblidade de acesso humano a
radiação laser superior a um nível de Classe I durante a operação
normal, a manutençã o feita pelo utilizador ou condições de
assistênc ia pr es critas.

x Service Manual

7001-001

Laserinformatie

De printer voldoet aan de eisen die gesteld worden aan een
laserproduk t van klasse I. Vo or de Verenigde Staten zijn deze eisen
vastgelegd in DHHS 21 CFR Subchapter J, voor andere landen in
IEC 60825-1.

Laser produkt en van klasse I worden niet als ongevaarlijk
aangemerkt . De printer is voorzien van een laser van klasse IIIb
(3b), dat wil zeggen een gallium arsenide-laser van 5 milliwat t m e t
een golflengte van 770-795 nanometer. Het lasergedeelte en de
printer zijn zo ontworpen dat bij normaal gebrui k, bij onderhoud of
reparatie conform de voorschrif ten , nooit blootste lling mogelijk is
aan laserstraling boven een niveau zoals voorgeschreven is voor
klasse 1.

Lasermeddelelse

Printeren er godkendt som et Klasse I-laserprodukt, i
overenstemmelse med kravene i IEC 60825-1.

Klasse I-laserprodukter betragtes ikke som farlige. Printeren
indeholder internt en Klasse IIIB (3b)-laser, der nominelt er en 5
milliwatt galliumarsenid laser, som arbejder på bølgelængdeområdet
770-795 nanometer. Lasersystemet og printeren er udformet
således, at mennesker aldrig udsættes for en laserstråling over
Klasse I-niveau ved normal drift, brugervedligeholdelse eller
obligatoriske servicebet ingelse r.

Laser notices xi

7001-001

Huomau tu s las er lai tteesta

Tämä kirjoitin on Yhdysvalloissa luokan I (1) laserlaitteiden DHHS
21 CFR Subchapter J -määrityksen mukainen ja muualla luokan I
laserlaitteiden IEC 60825-1 -määrityksen mukainen.

Luokan I laserlaitteiden ei katsota olevan vaarallisia käyttäjälle.
Kirjoittimessa on sisäinen luokan IIIb (3b) 5 milliwatin
galliumarsenidilaser, joka toimii aaltoalueella 770 - 795 nanometr iä.
Laserjärjestelmä ja kirjoitin on suunniteltu siten, että käyttäjä ei
altistu luokan I määrityksiä voimakkaammalle säteilylle kirjoittimen
normaalin toiminnan, käyttäjän tekemien huoltotoimien tai muiden
huoltotoimien yhteydessä.

VA RO! Avattaessa ja suojalukitus ohitettaessa olet alttiina
näkymättömälle lasersäteilylle. Älä katso säteeseen.

VA RNI NG! Osynlig laserstrålning när denna del är öppnad och
spärren är urkopplad. Betrakta ej strålen.

Laser-notis

Denna skrivare är i USA certifierad att motsvara kraven i DHHS 21
CFR, underparagraf J för laserprodukter av Klass I (1). I andra
länder uppfyller skrivaren kraven för laserprodukter av Klass I enligt
kraven i IEC 60825-1.

Laserprod ukter i Klass I anses ej hälsovådliga. Skrivaren har en
inbyggd laser av Klass IIIb (3b) som består av en laserenhet av
gallium-arsenid på 5 milliwatt som arbetar i våglängdsområdet 770­795 nanometer. Lasersystemet och skrivaren är utf ormade så att det
aldrig finns risk för att någon person utsätts för laserstrålning över
Klass I-nivå vid normal användning, underh åll som utförs av
användaren eller annan föreskriven serviceåtgärd.

xii Service Manual

7001-001

Laser-melding

Skriveren er godkjent i USA etter kravene i DHHS 21 CFR,
underkapittel J, for klasse I (1) laserprodukter, og er i andre land
godkjent som et Klasse I-laserp roduk t i samsvar med kravene i IEC
60825-1.

Klasse I-laserprodukter er ikke å betrakte som farlige. Skriveren
inneholder internt en klasse IIIb (3b)-laser, som består av en
gallium-arsenlaserenhet som avgir stråling i bø lgelengdeområdet
770-795 nanometer. Lasersystemet og skriveren er utformet slik at
personer aldri utsettes for laserstråling ut over klasse I-nivå under
vanlig bruk, vedlikehold som utføres av brukeren, eller foreskrevne
serviceoperasjoner.

Avís sobre el Làser

Segons ha estat cert ificat als Estats Units, aquesta impressora
compleix els requisits de DHHS 21 CFR, apartat J, pels productes
làser de classe I (1), i segons ha estat certificat en altres llocs, és un
producte làser de classe I que compleix els requisits d’IEC 60825-1.

Els productes làser de classe I no es consideren perillosos. Aquesta
impressora conté un làser de classe IIIb (3b) d’arseniür de gal.li,
nominalment de 5 mil.liwats, i funciona a la regió de longitud d’ona
de 770-795 nanòmetres. El sistema làser i la impressora han sigut
concebuts de manera que mai hi hagi exposició a la radiació làser
per sobre d’un nivell de classe I durant una operació normal, durant
les tasques de mantenimen t d’usuar i ni durant els serveis que
satisfacin les condicions prescrites.

Laser notices xiii

7001-001

Japanese Laser Notice

Chinese Laser Notice

xiv Service Manual

Korean Laser Notice

7001-001

Laser notices xv

7001-001

xvi Service Manual

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 precaut ions.

• CAUTION: When you see this symbol, there is a

danger from hazardous voltage in the area of the
product where you are working. Unplug the product
before you begin, or use caution if the product must
receive power in order to perform the task.

7001-001

Consig n es de sécu ri té

• La sécurité de ce produit repose sur des tests et des

agréations por tant sur sa conception d'orig ine et sur des
composants particuliers. Le fabricant n'assume aucune
responsabilité concernant la sécurité en cas d'utilisation de
pièces de rechange non agréées.

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

s'adressent uniquement à un personnel de maintenance
qualifié.

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

cer tains risques électr iqu es, le personnel d'entretien qualifié
devra prendre toutes les précautions nécessaires.

• ATTENTION : Ce symbole indique la présence

d'une t ension dangereuse dans la partie du produit
sur laquelle vous travaillez. Débranchez le produit
avant de commencer ou faites preuve de vigilance si
l'exécution de la tâche exige que le produit reste sous
tension.

Safety information xvii

7001-001

Norme di sicurezza

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

del progetto originale e dei componenti specifici. Il produttore
non è responsabile 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 è più
elevato. Il personale di assistenza autorizzato deve, quindi,
adottare le precauzioni necessarie.

• ATTENZIONE: Questo simbo lo indica la presenza

di tensione pericolosa nell'area del prodotto .
Scollegare il prodotto prima di iniziare o usare
cautela se il prodotto deve essere alimentato per
eseguire l'intervento.

Sicherheitshinweise

• Die Sicherheit dieses Produkts basiert auf Tests und

Zulassungen des ursprüng lichen Modell s und bestimmter
Bauteile. Bei Verw endung nicht genehmigter Ersatzteile wird
vom Hersteller keine Verantwort ung oder Haftung für die
Sicherheit übernommen.

• Die Wartungsinformationen für dieses Produ kt sind

ausschließlich für die Verwendung durch einen
Wartungsfachmann bestim mt.

• Während des Auseinanderne hme ns und der Wartung des

Geräts besteht ein zusätzliches Risiko eines elektrischen
Schlags und körperlicher Verletzung. Das zuständige
Fachpersonal sollte entsprechende V orsichtsmaßnahmen
treffen.

• ACHTUNG: Dieses Symbol weist auf eine

gefährliche elektrische Spannung hin, die in diesem
Bereich des Produkts auftreten kann. Ziehen Sie vor
den Arbeiten am Gerät den Netzstecker des Geräts,
bzw. arbeiten Sie mit großer Vorsicht, wenn das
Produkt für die Ausführung der Arbeiten an den
Strom angeschlossen sein muß.

xviii Service Manual

Pautas de Seguridad

• La seguridad de este producto se basa en pruebas y

aprobaciones del diseño origina l y componentes espec íficos.
El fabricante no es responsable de la seguridad en caso de uso
de piezas de repuesto no autorizadas.

• La información sobre el mantenimien to 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.

• PRECAUCIÓN: este símbolo indica que el voltaje

de la parte del equipo con la que está trabajando es
peligroso. Antes de empezar, desenchufe el equipo
o te nga cuidado si, para trabajar con él, debe
conectarlo.

7001-001

Informações de Segurança

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

do modelo original e de componentes específicos. O fabricante
não é responsável 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 manutenç ão deste produto. Os profissionais
destes serviços devem estar avisados deste facto e tomar os
cuidados necessários.

• CUIDADO: Quando vir este símbolo , e xi ste a

possível presença de uma potencial tensão perigosa
na zona do produto em que está a trabalhar. Antes
de começar, desligue o produto da tomada eléctrica
ou seja cuidadoso caso o produto tenha de estar
ligado à corrente eléctrica para realizar a tarefa
necessária.

Safety information xix

7001-001

Informació de Seguretat

• La seguretat d'aquest producte es basa en l'avaluació i

aprovació del 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 informació pel manteniment d’aquest producte està

orientad a exclusivament a professionals i no està destinada
a ningú que 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 conven i e nts.

• PRECAUCIÓ: aquest símbol indica que el voltatge

de la part de l'equip amb la qual esteu treballant és
perillós. Abans de començar, desendolleu l'equip
o extremeu les precaucions si, per treballar amb
l'equip, l'heu de connectar.

xx Service Manual

7001-001

Safety information xxi

7001-001

Preface

This manual contains maintenance procedures for service
personnel. It is divided into the following chapters:

1. General inf ormatio n contains a general description of the MFP
and the maintenance approa ch used to repair it. Special tools
and test equipment are listed, 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 MFP problems.

4. R epair information provides instructions for making MFP
adjustments and removing and installing FRUs.

5. Connector locations uses illustrations t o identify the connector
locations and test points on the printer.

6. Preventive maintenance contains the lubrication specifications
and recommenda tions to prevent problems.

7. Part s catalog contains illustrations and part numbers for
individual FRUs.

Definitions

Note: A note provides additional information.
Warning: A warning identifies some thing that might damage t he

product hardware or software.
CAUTION: A caution identifies something that might cause a

servicer harm .

CAUTI ON: When you see this symbol, there is a
danger from hazardous voltage in the area of the
product where you are working. Unplug the product
before you begin, or use caution if the product must
receive power in order to perform the task.

xxii Service Manual

7001–001

1. Ge n e r a l inform a tion

The Lexmark™ X422 multifunction product (MFP), with 128MB of
memory standard, a USB port, an integrated Ethernet adapter, and

33.6K baud fax/modem.
This chapter provides an overview of the capabilities of the MFP and

available options for each model.

Mai nt en an ce ap proa ch

The diagnostic information in this manual leads you to the correct
field replaceable unit (FRU) or part. Use the error code charts,
symptom index, and service checks to determine the symptom and
repair the failure. See “D i agnostic informat ion” on page 2-1 for
more information. See “Repair information” on page 4-1 to help
identify parts. After completing the repair , perform tests as needed to
verify the repair.

General information 1-1

7001–001

MFP identification

Options

See “O pt i ons” on pa g e 7-22 for a list of options available for the
MFP.

1-2 Service Manual

MFP feat ur es

Connectivity

Attachments

Standard USB inter face ✓
Standard Ethernet 10/100 Base–TX ✓
Fax m od em ✓

Note:

✓ Indicates attachment is part of the model factory shipped

configuration.

7001–001

Fonts

Fonts / options

PCL bitmapped 2
PCL outline 89
PS outline 91
PPDS bitmapped 5
PPDS outline 39

Note: There is no font card support.

General information 1-3

7001–001

Memory and user flash memory

Each model has a standard amount of memory (RAM) solder ed on the system
card, and a certain number of 100-pin DIMM slots avai lable for installi ng
additional memory or user flash memory options.

Memory

Standard memory 128MB
Standard flash memory None
Memory options

• 8MB DIMM

• 16MB DIMM

• 32MB DIMM

• 64MB DIMM

• 128MB DIMM
Maximum # of memory DIMM 2
Maximum possible memory 384MB
Flash memory options

• 16MB User flash daughter card

• 32MB User flash daughter card
Maximum # of flash daughter cards 1
Maximum possible flash memory 32MB

Note: ✓ Indicates option is supported.

✓
✓
✓
✓

✓
✓

1-4 Service Manual

7001–001

Operator panel

The operator panel consists of a 240 X 64 dot matrix APA LCD and
27 buttons. Four can be illuminated (copy, fax, e-mail and print/
profiles). The display can display eight lines of text with 40
characters each.

Print area

The following print area settings are available.

Print area opti on

Normal ✓
Edge to edge ✓

General information 1-5

7001–001

Print media

The following table shows the supported media, medi a weights and
media textures which together provide optimal print quality across a
variety of media.

Media

Paper ✓
Card stock ✓
Transparency ✓
Labels ✓
Envelope ✓
Cotton paper ✓
Bond ✓

Media weights

Heavy ✓
Normal ✓
Light ✓

Media textures
Rough ✓
Normal ✓
Smooth ✓

Note:

✓ Indicates media is supported.

1-6 Service Manual

Data streams

Data streams

PCL 6 emulation ✓
PostScript 3 emulation ✓
PPDS ✓
PDF (version 1.3) ✓

Note: ✓ Indicates data stream is suppor t ed.

• PCL 6 emulation includes the PCL 5e and PCL XL interpreters,

and is fully compatible with Hewlett Pac kard’s LaserJet 5 Family.

Furt her m ore, the MFP PCL emulation is backward compatible

with the Lexmark T 520/522/620/622 and other members of

Lexmark’s Optra™ family of laser printers.

7001–001

• 7001–00x supports version 3010 of the Adobe definition of

PostScript 3, and the interpreter is backward compatible with

the Optra T 520/522/620/622 and other members of Lexmark’s

Optra family of laser printers.

• PPDS is backward compatible with Optra T 520/522/620/622

and Lexmark’s Optra family of laser printers. The PPDS

interpreter is inactive as a factory default. It must be activated

using a PJL command or operator panel operation before it can

be used.

General information 1-7

7001–001

Paper handling

Paper handling

Standard
Standard inpu t sources:

• Integrated 250–sheet tray

The 250–sheet drawer supports the
following sizes: A4, A5, JIS B5, folio, letter,
legal, executive, and statement.

• Multipurpose feeder

Standard output destination

• 150–sheet sensing bin

Standard duplex ✓
Envelope conditioning ✓

Options

Maximum # of optional drawers 1
Optional drawers:

• 250–sheet drawer

• 500–sheet drawer

The 500–sheet drawer supports the
following siz es: A4, JI S B5, folio, letter, legal ,
and executive.

✓
✓

2
1

1

1

1

Maximum # of medi a input sources 3
Maximum in put sheet capacity (exc luding

envelopes)

Notes:

• ✓ Indicates associated capability is supported.

• Assumes 20 lb xerographic paper.

• The user must choose between the 250–sheet and

500

–sheet optional drawers when adding additional paper

sources.

1-8 Service Manual

850