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Lexmark E23x, E33x

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

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Edition: June 2004

The following paragraph does not apply to any country where such provisions are

inconsistent with local law: LEXMARK INTERNATIONAL, INC. PROVIDES THISPUBLICATION AS IS WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS ORIMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OFMERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Some states do not allowdisclaimer of express or implied warranties in certain transactions; therefore, this statement maynot apply to you.

This publication could include technical inaccuracies or typographical errors. Changes areperiodically 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 atServiceInfoAndTraining@Lexmark.com. Lexmark may use or distribute any of the informationyou supply in any way it believes appropriate without incurring any obligation to you. You canpurchase additional copies of publications related to this product by calling 1-800-553-9727. Inother countries, contact your point of purchase.

References in this publication to products, programs, or services do not imply that themanufacturer intends to make these available in all countries in which it operates. Any referenceto a product, program, or service is not intended to state or imply that only that product,program, or service may be used. Any functionally equivalent product, program, or service thatdoes not infringe any existing intellectual property right may be used instead. Evaluation and

verification of operation in conjunction with other products, programs, or services, except thoseexpressly designated by the manufacturer, are the users responsibility.

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

Optra Forms is a trademark of Lexmark International, Inc.

PCLis a registered trademark of the Hewlett-Packard Company.

PostScriptis a registered trademark of Adobe Systems Incorporated.

Other trademarks are the property of their respective owners.

2004 Lexmark International, Inc.All rights reserved.

UNITED STATES GOVERNMENT RIGHTSThis software and any accompanying documentation provided under this agreement arecommercial computer software and documentation developed exclusively at private expense.

U.S.A. P/N 12G9399

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Table of contents

Laser notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viiSafety information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv

Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xx

Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xx

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

Overview of the operator panel . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3Paper jamshow to clear. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Tips on preventing jams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6Types of print media . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8

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

Start. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1POST (poweron self test) . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Overview of the operator panel . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2Understanding the operator panel lights . . . . . . . . . . . . . . . . . 2-3Common light sequences . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3Secondary errors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Operator panel codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8Primary codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8Secondary error codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19

Service information with secondary and tertiary light patterns . 2-29Secondary error codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-30Tertiary service error codes . . . . . . . . . . . . . . . . . . . . . . . . . 2-31

Symptom tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-44POST symptom table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-44Printer symptom table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-45

Service checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-47Cold fuser service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-47Cooling fan service check . . . . . . . . . . . . . . . . . . . . . . . . . . 2-48Controller card service check . . . . . . . . . . . . . . . . . . . . . . . . 2-49

Cover interlock switch service check . . . . . . . . . . . . . . . . . . 2-51Dead machine service check . . . . . . . . . . . . . . . . . . . . . . . . 2-52Fuser service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-53Hot fuser service check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-56LVPS/HVPS service check . . . . . . . . . . . . . . . . . . . . . . . . . 2-57Main motor service check . . . . . . . . . . . . . . . . . . . . . . . . . . 2-58

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Operator panel service check. . . . . . . . . . . . . . . . . . . . . . . . .2-59Printhead service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-61Paper feed service checks . . . . . . . . . . . . . . . . . . . . . . . . . . .2-61Parallel port service check . . . . . . . . . . . . . . . . . . . . . . . . . . .2-65Print quality service checks . . . . . . . . . . . . . . . . . . . . . . . . . .2-66Using print quality test pages . . . . . . . . . . . . . . . . . . . . . . . . .2-66Transfer roll service check . . . . . . . . . . . . . . . . . . . . . . . . . .2-79

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

Configuration and diagnostic groups . . . . . . . . . . . . . . . . . . . . . .3-1Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1Diagnostic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1

PowerOn operations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2Configuration menu selections . . . . . . . . . . . . . . . . . . . . . . . . .3-6Diagnostics menu selections . . . . . . . . . . . . . . . . . . . . . . . . .3-12

Repair information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1

Removals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1Covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2Fan removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-6Feed rollers (auto comp tires) removal. . . . . . . . . . . . . . . . . . .4-7Fuser idle gear links removal . . . . . . . . . . . . . . . . . . . . . . . . . .4-7Fuser power cable removal . . . . . . . . . . . . . . . . . . . . . . . . . . .4-8Fuser removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-8Input roller clutch and lever removal(ACM clutch CBM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-9Input sensor #1 removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-9Input sensor #2 (manual) removal . . . . . . . . . . . . . . . . . . . . .4-10LVPS / HVPS card assembly removal . . . . . . . . . . . . . . . . . .4-10

LVPS / HVPS to controller card cable removal . . . . . . . . . . .4-11Manual feed clutch assembly removal . . . . . . . . . . . . . . . . . .4-11Operator panel removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-11Paper exit guide assembly removal . . . . . . . . . . . . . . . . . . . .4-12Printhead removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-12Toner level sensor cable removal . . . . . . . . . . . . . . . . . . . . .4-12Toner level sensor removal . . . . . . . . . . . . . . . . . . . . . . . . . .4-13Transfer roll removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-13

Transport motor cable removal . . . . . . . . . . . . . . . . . . . . . . .4-14Connector locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1

Front and rear views . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1Power supply board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-2Controller board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-3Wiring diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-4

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Laser notices

Laser noticeThe printer is certified in the U.S. to conform to the requirements ofDHHS 21 CFR Subchapter J for Class I (1) laser products, andelsewhere is certified as a Class I laser product conforming to therequirements 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 5milliwatt gallium arsenide laser operating in the wavelength region of770-795 nanometers. The laser system and printer are designed sothere is never any human access to laser radiation above a Class Ilevel during normal operation, user maintenance, or prescribedservice condition.

LaserDer Drucker erfllt gem amtlicher Besttigung der USA dieAnforderungen der Bestimmung DHHS (Department of Health andHuman Services) 21 CFR Teil J fr Laserprodukte der Klasse I (1).In anderen Lndern gilt der Drucker als Laserprodukt der Klasse I,der die Anforderungen der IEC (International ElectrotechnicalCommission) 60825-1 gem amtlicher Besttigung erfllt.

Laserprodukte der Klasse I gelten als unschdlich. Im Inneren desDruckers befindet sich ein Laser der Klasse IIIb (3b), bei dem essich um einen Galliumarsenlaser mit 5 Milliwatt handelt, der Wellender Lnge 770-795 Nanometer ausstrahlt. Das Lasersystem und derDrucker sind so konzipiert, da im Normalbetrieb, bei der Wartungdurch den Benutzer oder bei ordnungsgemer Wartung durch denKundendienst Laserbestrahlung, die die Klasse I bersteigen wrde,Menschen keinesfalls erreicht.

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Avis relatif lutilisation de laser

Pour les Etats-Unis : cette imprimante est certifie conforme aux

provisions DHHS 21 CFR alina J concernant les produits laser deClasse I (1). Pour les autres pays : cette imprimante rpond auxnormes IEC 60825-1 relatives aux produits laser de Classe I.

Les produits laser de Classe I sont considrs comme des produitsnon dangereux. Cette imprimante est quipe dun laser de ClasseIIIb (3b) (arsniure de gallium dune puissance nominale de 5milliwatts) mettant sur des longueurs donde comprises entre 770

et 795 nanomtres. Limprimante et son systme laser sont conuspour impossible, dans des conditions normales dutilisation,dentretien par lutilisateur ou de rvision, lexposition desrayonnements laser suprieurs des rayonnements de Classe I .

Avvertenze sui prodotti laser

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

I prodotti laser di classe non sono considerati pericolosi. Lastampante contiene al suo interno un laser di classe IIIb (3b)allarseniuro di gallio della potenza di 5mW che opera sullalunghezza donda compresa tra 770 e 795 nanometri. Il sistema

laser e la stampante sono stati progettati in modo tale che lepersone a contatto con la stampante, durante il normalefunzionamento, le operazioni di servizio o quelle di assistenzatecnica, non ricevano radiazioni laser superiori al livello dellaclasse 1.

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Avisos sobre el lser

Se certifica que, en los EE.UU., esta impresora cumple los

requisitos para los productos lser de Clase I (1) establecidos en elsubcaptulo J de la norma CFR 21 del DHHS (Departamento deSanidad y Servicios) y, en los dems pases, rene todas lascondiciones expuestas en la norma IEC 60825-1 para productoslser de Clase I (1).

Los productos lser de Clase I no se consideran peligrosos. Laimpresora contiene en su interior un lser de Clase IIIb (3b) de

arseniuro de galio de funcionamiento nominal a 5 milivatios en unalongitud de onda de 770 a 795 nanmetros. El sistema lser y laimpresora estn diseados de forma que ninguna persona puedaverse afectada por ningn tipo de radiacin lser superior al nivel dela Clase I durante su uso normal, el mantenimiento realizado por elusuario o cualquier otra situacin de servicio tcnico.

Declarao sobre Laser

A impressora est certificada nos E.U.A. em conformidade com osrequisitos da regulamentao DHHS 21 CFR Subcaptulo J para aClasse I (1) de produtos laser. Em outros locais, est certificadacomo um produto laser da Classe I, em conformidade com osrequisitos da norma IEC 60825-1.

Os produtos laser da Classe I no so considerados perigosos.Internamente, a impressora contm um produto laser da Classe IIIb

(3b), designado laser de arseneto de potssio, de 5 milliwatts,operando numa faixa de comprimento de onda entre 770 e 795nanmetros. O sistema e a impressora laser foram concebidos deforma a nunca existir qualquer possiblidade de acesso humano aradiao laser superior a um nvel de Classe I durante a operaonormal, a manuteno feita pelo utilizador ou condies deassistncia prescritas.

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Huomautus laserlaitteesta

Tm kirjoitin on Yhdysvalloissa luokan I (1) laserlaitteiden DHHS

21 CFR Subchapter J -mrityksen mukainen ja muualla luokan Ilaserlaitteiden IEC 60825-1 -mrityksen mukainen.

Luokan I laserlaitteiden ei katsota olevan vaarallisia kyttjlle.Kirjoittimessa on sisinen luokan IIIb (3b) 5 milliwatingalliumarsenidilaser, joka toimii aaltoalueella 770 - 795 nanometri.Laserjrjestelm ja kirjoitin on suunniteltu siten, ett kyttj eialtistu luokan I mrityksi voimakkaammalle steilylle kirjoittimen

normaalin toiminnan, kyttjn tekemien huoltotoimien tai muidenhuoltotoimien yhteydess.

VARO! Avattaessa ja suojalukitus ohitettaessa olet alttiinankymttmlle lasersteilylle. l katso steeseen.

VARNING! Osynlig laserstrlning nr denna del r ppnad och

sprren r urkopplad. Betrakta ej strlen.

Laser-notis

Denna skrivare r i USA certifierad att motsvara kraven i DHHS 21CFR, underparagraf J fr laserprodukter av Klass I (1). I andralnder uppfyller skrivaren kraven fr laserprodukter av Klass I enligt

kraven i IEC 60825-1.

Laserprodukter i Klass I anses ej hlsovdliga. Skrivaren har eninbyggd laser av Klass IIIb (3b) som bestr av en laserenhet avgallium-arsenid p 5 milliwatt som arbetar i vglngdsomrdet 770-795 nanometer. Lasersystemet och skrivaren r utformade s att detaldrig finns risk fr att ngon person utstts fr laserstrlning verKlass I-niv vid normal anvndning, underhll som utfrs avanvndaren eller annan freskriven servicetgrd.

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Laser-melding

Skriveren er godkjent i USA etter kravene i DHHS 21 CFR,

underkapittel J, for klasse I (1) laserprodukter, og er i andre landgodkjent som et Klasse I-laserprodukt i samsvar med kravene i IEC60825-1.

Klasse I-laserprodukter er ikke betrakte som farlige. Skrivereninneholder internt en klasse IIIb (3b)-laser, som bestr av engallium-arsenlaserenhet som avgir strling i blgelengdeomrdet770-795 nanometer. Lasersystemet og skriveren er utformet slik at

personer aldri utsettes for laserstrling ut over klasse I-niv undervanlig bruk, vedlikehold som utfres av brukeren, eller foreskrevneserviceoperasjoner.

Avs sobre el Lser

Segons ha estat certificat als Estats Units, aquesta impressoracompleix els requisits de DHHS 21 CFR, apartat J, pels producteslser de classe I (1), i segons ha estat certificat en altres llocs, s unproducte lser de classe I que compleix els requisits dIEC 60825-1.

Els productes lser de classe I no es consideren perillosos. Aquestaimpressora cont un lser de classe IIIb (3b) darsenir de gal.li,nominalment de 5 mil.liwats, i funciona a la regi de longitud donade 770-795 nanmetres. El sistema lser i la impressora han sigutconcebuts de manera que mai hi hagi exposici a la radiaci lser

per sobre dun nivell de classe I durant una operaci normal, durantles tasques de manteniment dusuari ni durant els serveis quesatisfacin les condicions prescrites.

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Japanese Laser Notice

Chinese Laser Notice

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Korean Laser Notice

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Safety information

The safety of this product is based on testing and approvals ofthe original design and specific components. The manufactureris not responsible for safety in the event of use of unauthorizedreplacement parts.

The maintenance information for this product has beenprepared for use by a professional service person and is notintended 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 takenecessary precautions.

CAUTION: When you see this symbol, there is adanger from hazardous voltage in the area of theproduct where you are working. Unplug the productbefore you begin, or use caution if the product mustreceive power in order to perform the task.

Consignes de scurit

La scurit de ce produit repose sur des tests et desagrations portant sur sa conception d'origine et sur descomposants particuliers. Le fabricant n'assume aucuneresponsabilit concernant la scurit en cas d'utilisation depices de rechange non agres.

Les consignes d'entretien et de rparation de ce produits'adressent uniquement un personnel de maintenancequalifi.

Le dmontage et l'entretien de ce produit pouvant prsentercertains risques lectriques, le personnel d'entretien qualifidevra prendre toutes les prcautions ncessaires.

ATTENTION : Ce symbole indique la prsence

d'une tension dangereuse dans la partie du produitsur laquelle vous travaillez. Dbranchez le produitavant de commencer ou faites preuve de vigilance sil'excution de la tche exige que le produit reste soustension.

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Norme di sicurezza

La sicurezza del prodotto si basa sui test e sull'approvazionedel progetto originale e dei componenti specifici. Il produttorenon responsabile per la sicurezza in caso di sostituzione nonautorizzata delle parti.

Le informazioni riguardanti la manutenzione di questo prodottosono 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 pielevato. Il personale di assistenza autorizzato deve, quindi,

adottare le precauzioni necessarie.

ATTENZIONE: Questo simbolo indica la presenzadi tensione pericolosa nell'area del prodotto.Scollegare il prodotto prima di iniziare o usarecautela se il prodotto deve essere alimentato pereseguire l'intervento.

Sicherheitshinweise

Die Sicherheit dieses Produkts basiert auf Tests undZulassungen des ursprnglichen Modells und bestimmterBauteile. Bei Verwendung nicht genehmigter Ersatzteile wirdvom Hersteller keine Verantwortung oder Haftung fr dieSicherheit bernommen.

Die Wartungsinformationen fr dieses Produkt sindausschlielich fr die Verwendung durch einenWartungsfachmann bestimmt.

Whrend des Auseinandernehmens und der Wartung desGerts besteht ein zustzliches Risiko eines elektrischenSchlags und krperlicher Verletzung. Das zustndigeFachpersonal sollte entsprechende Vorsichtsmanahmentreffen.

ACHTUNG: Dieses Symbol weist auf einegefhrliche elektrische Spannung hin, die in diesemBereich des Produkts auftreten kann. Ziehen Sie vorden Arbeiten am Gert den Netzstecker des Gerts,bzw. arbeiten Sie mit groer Vorsicht, wenn dasProdukt fr die Ausfhrung der Arbeiten an denStrom angeschlossen sein mu.

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Pautas de Seguridad

La seguridad de este producto se basa en pruebas yaprobaciones del diseo original y componentes especficos.El fabricante no es responsable de la seguridad en caso de usode piezas de repuesto no autorizadas.

La informacin sobre el mantenimiento de este producto estdirigida exclusivamente al personal cualificado demantenimiento.

Existe mayor riesgo de descarga elctrica y de daospersonales durante el desmontaje y la reparacin de lamquina. El personal cualificado debe ser consciente de estepeligro y tomar las precauciones necesarias.

PRECAUCIN: este smbolo indica que el voltajede la parte del equipo con la que est trabajando espeligroso. Antes de empezar, desenchufe el equipoo tenga cuidado si, para trabajar con l, debeconectarlo.

Informaes de Segurana

A segurana deste produto baseia-se em testes e aprovaesdo modelo original e de componentes especficos. O fabricanteno responsvel pela segunrana, no caso de uso de peasde substituio no autorizadas.

As informaes de segurana relativas a este produtodestinam-se a profissionais destes servios e no devem serutilizadas por outras pessoas.

Risco de choques elctricos e ferimentos graves durante adesmontagem e manuteno deste produto. Os profissionaisdestes servios devem estar avisados deste facto e tomar oscuidados necessrios.

CUIDADO: Quando vir este smbolo, existe apossvel presena de uma potencial tenso perigosa

na zona do produto em que est a trabalhar. Antesde comear, desligue o produto da tomada elctricaou seja cuidadoso caso o produto tenha de estarligado corrente elctrica para realizar a tarefanecessria.

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Informaci de Seguretat

La seguretat d'aquest producte es basa en l'avaluaci iaprovaci del disseny original i els components especfics.El fabricant no es fa responsable de les qestions deseguretat si s'utilitzen peces de recanvi no autoritzades.

La informaci pel manteniment daquest producte estorientada exclusivament a professionals i no est destinadaa ning que no ho sigui.

El risc de xoc elctric i de danys personals pot augmentardurant el procs de desmuntatge i de servei daquest producte.El personal professional ha destar-ne assabentat i prendreles mesures convenients.

PRECAUCI: aquest smbol indica que el voltatgede la part de l'equip amb la qual esteu treballant sperills. Abans de comenar, desendolleu l'equipo extremeu les precaucions si, per treballar ambl'equip, l'heu de connectar.

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Safety information xix

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Preface

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

1. General information contains a general description of theprinter and the maintenance approach used to repair it. Specialtools and test equipment are listed in this chapter, as well asgeneral environmental and safety instructions.

2. Diagnostic information contains an error indicator table,symptom tables, and service checks used to isolate failing fieldreplaceable units (FRUs (field replaceable unit)).

3. Diagnostic aids contains tests and checks used to locate orrepeat symptoms of printer problems.

4. Repair information provides instructions for making printeradjustments and removing and installing field replaceable units(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 forindividual FRUs.

Definitions

Note: A note provides additional information.

Warning: A warning identifies something that might damage theproduct hardware or software.

CAUTION: A caution identifies something that might cause aservicer harm.

CAUTION: When you see this symbol, there is adanger from hazardous voltage in the area of theproduct where you are working. Unplug the productbefore you begin, or use caution if the product mustreceive power in order to perform the task.

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1. General information

The Lexmark E23x, E33x printers are monochrome laser printersdesigned for single users or small workgroups. There are fourmodels:

E230, 8MB memory standard, a USB (universal serial bus) port,a parallel port, and prints 18 pages per minute.

Note: The optional 550-sheet tray is not supported.

E232, 16MB of memory standard, a parallel port, a USB port,and prints 22 pages per minute.

E330, 32MB of memory standard, a parallel port, a USB port,and prints 27 pages per minute.

E332n, 32MB of memory standard, an integrated Ethernetadapter, a parallel port, a USB port, and prints 27 pages perminute.

E234, 32MB of memory standard, a parallel port, a USB port,and prints 25 pages per minute.

E234n, 32MB of memory standard, an integrated Ethernetadapter, a parallel port, a USB port, and prints 27 pages perminute.

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The differences between the models are listed in the following table.

Item

4505-100

LexmarkE230

4505-200

LexmarkE232

4505-300

Lexmark E330

4505-310

LexmarkE332n

Base memory 8MB 16MB 32MB

Maximummemory

8MB 80MB 160MB

Paper inputs 250sheettray

Single

sheetmanualfeeder

250sheet tray Singlesheet manual feeder Optional 550sheet drawer

Emulations HBP (hostbasedprinting), PCL(printer controllanguage) 5e,and Windows/Macintosh/Linuxcompatibility

HBP, PCL 6,and Windows/Macintosh/Linuxcompatibility

HBP, PostScript 3, PCL 6, PPDS(personal printer data stream)and Windows/Macintosh/Linuxcompatibility

Connectivity USB and Parallel USB, Parallel,and 10/100Base-TXEthernet

Toner cartridgeyield

1,500 pages*(starter toner cartridge)

2,500 pages

Photoconductorkit yield

30,000 pages*

* Yield based on approximately 5% coverage of pages.

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Overview of the operator panel

The operator panel has six lights and two buttons. See

Operator panel codes on page 2-8 for more information.

Press and release to resume printing. Press and release twice quickly to display a secondary

error code following an error.

Press and release to cancel the job currently printing. Press and hold until all of the lights come on to reset the

printer.

Continue

Cancel

Ready

Toner Low /Replace PC Kit

Load Paper

Paper Jam

Error

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Paper jamshow to clear

When a paper jam occurs, the printer stops operating and the

operator panels and lights come on. Press and release

twice quickly to display the specific secondary error paperjam light sequence. See Secondary errors on page 2-6 formore information.

We recommend the entire paper path be cleared when a paperjam occurs.

To clear a paper jam:

1. If the paper is feeding from a tray, remove the tray, andthen remove any jams.

2. Open the front cover and remove the print cartridgeassembly.

3. Remove any jams located in the area behind the print

cartridge assembly.

4. Lift the flap at the front of the printer and remove any jamslocated beneath the flap.

5. Open the rear exit and remove any jams.

6. After you have cleared the jams, reinstall the print cartridgeassembly, make sure all printer covers and trays are closed, andthen press the button to resume printing.

Note: Pages caught in the paper jam will reprint.

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Tips on preventing jams

You can avoid most paper jams by correctly loading paper and

specialty media.

The following hints can help you avoid paper jams:

Do not load wrinkled, creased, or damp paper. Never mix media types within a tray. Flex, fan, and straighten paper before you load it.

Do not exceed the maximum stack height.

Push all trays firmlyinto the printer after loading them. Make sure the guides in the trays are positioned snugly against

the paper or specialty media.

Do not remove paper trays while a job is printing. Wait for aLoad Paper light sequence before you remove the tray.

Before loading transparencies, fan the stack to prevent sheets

from sticking together. Do not use envelopes that:

Have excessive curl Are stuck together Are damaged in any way Contain windows, holes, perforations, cutouts, or embossing Use metal clasps, string ties, or metal folding bars Have postage stamps attached Have any exposed adhesive when the flap is in the sealed

position

Use only recommended paper. Refer to the Card Stock & LabelGuideavailable on the Lexmark Web site at www.lexmark.com for

more information about which paper provides optimum results for

current printing environment.

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Tools

The removal and adjustment procedures require the following tools

and equipment:

Magnetic tip Phillips screwdrivers, large and small Volt ohmmeter

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Types of print media

Ensure trays are properly loaded. Never mix media types

within a tray.

Source Sizes Types WeightCapacity

(sheets)

Tray 1

(250-sheettray)

A4, A5,JIS B5,letter, legal,

executive,folio,statement,Universal

Plain paper,transparencies,labels

6090 g/m2

(1624 lb) 250 paper labels 50 trans-

parencies

Tray 2

(550-sheettray)

A4, A5,JIS B5,letter, legal,executive,folio,

statement,Universal

Plain paper,transparencies,labels

60163 g/m2

(1643 lb) 550 paper labels 50

transpar-encies

card stock

Manualfeeder

A4, A5,JIS B5,letter, legal,executive,folio,statement,Universal

Plain paper,transparencies,labels, cardstock

60163 g/m2

(1643 lb)1

7, 9, 10,DL, C5, B5,other

Envelopes

Card stock up to 90# Index. Grain short is recommended. Universal size range: 76216 x 127356 mm (3.08.5 x 5.0

14.0 in.) (includes 3 x 5 in. cards).

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Abbreviations

ACM Auto Comp Mechanism (or paper feed)

ASIC Application Specific Integrated CircuitCBM Complete Bill Of Material

DIMM Dual In-Line Memory Module

ENA External Network Adapter

FRU Field Replaceable Unit

HBP Host Based Printing

HV High Voltage

HVPS High Voltage Power Supply

INTL International

LVPS Low Voltage Power Supply

NVRAM Nonvolatile Random Access Memory

PCL Printer Control Language

POR Power-On Reset

POST Power-On Self Test

PPDS Personal Printer Data Stream

PRC Peoples' Republic of ChinaPSO Participating Standards Organization

RIP Raster Image Processor

SDR Synchronous Dynamic RAM

USB Universal Serial Bus

V ac Volts alternating current

V dc Volts direct current

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2. Diagnostic information

Start

POST (poweron self test)

When you turn the printer on, it performs a POST. Check for correctPOST functioning of the base printer by observing the followingprocess:

1. All operator panel lights flash irregularly for approximately10 seconds.

2. If there is a problem in the printer such as a paper jam, thepanel lights indicate the problem. See Common lightsequences on page 2-3 for more information.

3. Otherwise, the light flashes until the fuser comes up totemperature (520 additional seconds depending on the initial

temperature of the fuser).Note: The operator panel has six lights and two buttons. Thebutton has a light in it.

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Overview of the operator panel

Press and release to resume printing. Press and release twice quickly to display a secondary

error code (following an error - and lights on).

Press and release to cancel the job currently printing. Press and hold until all of the lights come on to reset the

printer.

Continue

Cancel

Ready

Toner Low /Replace PC Kit

Load Paper

Paper Jam

Error

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Understanding the operator panel lights

The operator panel lights mean different things, depending on theirsequence. Lights that are off, on, and/or blinking indicate printerconditions such as printer status, intervention, or service.

The following tables show the most common light sequences.

Note: See Primary codes on page 2-8 for more information.

Common light sequences

See Overview of the operator panel on page 2-2 for iconinformation.

G Light on

Light is off

Light blinking

x Light blinking slow

Printer condition

G Ready / PowerSaver

Busy

x Hex Trace Ready

G G Waiting

Flushing /Resolutionreduced

G Not ready (printeroffline)

G Close door /Insert cartridge

G G Load media

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G Load manualfeeder

G Print side two ofduplex job

G Toner low

G Replacephotoconductorkit

G Replacephotoconductorkit (printer hardstop)

G Missing ordefective tonercartridge

G G Unsupportedtoner cartridge

G Change cartridge,invalid refill

G G Invalid enginecode /Invalid networkcode

G G G Programmingengine code /Programmingsystem code

G G G G G G Cancel job /Reset printer

Printer condition

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Service error (seeServiceinformation withsecondary andtertiary lightpatterns onpage 2-29formore information).

G Printer error (see

Secondaryerror codes onpage 2-19formore information).

Printer condition

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Secondary errors

When the and lights are both on, a secondary error hasoccurred. Press and release twice quickly to display thesecondary error code light sequence. The following table showswhat these light sequences mean.

Printer

condition

G G Printer error /Secondary

error code

G G Paper jams inthe manualfeeder

G G G Paper jams asit exits the trayinto the printer

G G G Paper jams asa printed jobexits the printer

G G G Complex page

G G Insufficientprinter memory

G G G Insufficient

collation area

G G Font error

G G G Defective flash

G G Insufficientdefrag memory

G G G Networkinterface errors

G G Errorcommunicatingwith hostcomputer

G G G G Memory full

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G G G G Short paper

G G G G Unformattedflash

G G G G Flash full

G G G Invalid enginecode

G G Invalid networkcode

Paper jam secondary codes

G G G 200 Paper jaminput sensor

G G G 201 Paper jambetween input

and exitsensors

G G G 202 Paper jamexit sensor

G G G G 241 Paper jamTray 1 jam

G G G G 242 Paper JamTray 2 jam

G G 251 Paper jammanual feeder

Printer

condition

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Operator panel codes

The following tables explain the primary light sequences, or codes,

and secondary error codes, what they mean and how to clear them.

Primary codes

Ready / Power Saver

Light sequence Meaning Action:

Printer ready to receiveand process data. Printer is in Power

Saver mode.

Send a print job. Press to print the

menu settings pagesfor a list of currentprinter settings.

Press and hold toreset the printer.

Note: To change thePower Saver setting, use

the Local Printer SetupUtility. See UsersReferencefor moreinformation.

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Busy

Light sequence Meaning Action:

Printer is busyreceiving andprocessing data orprinting.

Printer isdefragmenting the flashmemory to reclaimstorage spaceoccupied by deleted

resources. Printer is formatting the

flash memory.

Printer is storingresources, such asfonts or macros, inflash memory.

Printer is printing adirectory, font list,

menu settings pages,or Print Quality TestPages.

Busy: Wait for message to

clear. Press and release

to cancel printjob.

Press and hold toreset printer.

Defragmenting flash,formatting flash, or

programming flash: Wait for message to

clear. Warning: Do not turn

the printer off whilethis message isdisplayed.

Printing a directory, afont list, menu settingspages, or Print QualityTest Pages:

Wait for the pages toprint. TheBusymessage is displayedas the pages print.The light is onwhen printing stops.

Press and releaseto cancel

printing. Press and hold to

reset printer.

Receiving/processingdata from a hostinterface: Wait for message to

clear. Press and release

to stopprocessing.

Press and holdto reset printer.

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Hex Trace Ready

Waiting

Light sequence Meaning Action:

Printer is in the Readymode and Hex Trace isactive.

Hex Trace helpstroubleshoot printingproblems. Afterresolving the problem,turn off the printer toexit Hex Trace.

Or, press and holdto reset the printer.

Light sequence Meaning Action:

Printer is waiting until aprint timeout occurs, oruntil it receives additionaldata.

Press and releaseto print contents of theprint buffer.

Press and releaseto cancel the print job.

Press and hold toreset the printer.

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Flushing / Resolution reduced

Not ready

Light sequence Meaning Action:

Printer is flushingcorrupted print data.

Printer is processingdata or printing pages,but the resolution of apage in the currentprint job is reducedfrom 600 dots per inch(dpi) to 300 dpi to

prevent a memory fullerror.

Wait until isdisplayed to print other

jobs.

Press and releaseto cancel print job.

Press and hold toreset printer.

Light sequence Meaning Action:

Printer is not ready toreceive or process data,or the printer ports areoffline.

Press to return toor Busy state.

Press and releaseto cancel print job.

Press and hold toreset printer.

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Close door / Insert cartridge

Load media

Light sequence Meaning Action:

The printer door is open. Close the door.

Light sequence Meaning Action:

The printer is out ofmedia, or the media didnot feed properly.

Load media into tray 1or the optional550-sheet tray andpress to resumeprinting.

Check that the media isloaded correctly in

tray 1 or the optional550-sheet tray.

Press to cancelthe print job.

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Load manual feeder

Print side two of duplex job

Light sequence Meaning Action:

Printer prompts to load asingle sheet of media inthe manual feeder.

Load media, with theside to be printedfacing the front of theprinter, into the manualfeeder.

Press to resumeprinting.

Press and hold toreset printer.

Light sequence Meaning Action:

Print the other side ofduplex print job.

Reinsert print job intray 1 using theinstructions in thedriver pop-up menu toorient the pagescorrectly.

Press to resumeprinting.

Press and hold toreset printer.

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Toner low

Replace photoconductor kit

Light sequence Meaning Action:

Printer is ready toreceive and processdata.

The toner in the tonercartridge is getting low.

Send a print job. Press to print the

menu settings page fora list of currentsettings.

Remove the tonercartridge and shake itto extend the life of thecartridge.

Replace the tonercartridge.

Press and hold toreset printer.

Note: The lightmay not come on if thestarter toner cartridge isinstalled in a base printermodel.

Light sequence Meaning Action:

The photoconductor kitsdrum is full and needsreplacing.

Press to resumeprinting.

Replace thephotoconductor kit.

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Replace photoconductor kit (printer hard stop)

Toner cartridge error / Toner cartridge is not installed

Light sequence Meaning Action:

The photoconductor kitsdrum is full and needsreplacing. No pages printuntil the photoconductorkit is replaced.

Replace thephotoconductor kit.

Light sequence Meaning Action:

The toner cartridge is notinstalled, or the printerdetects a toner cartridgeerror.

If the toner cartridge isnot installed, install it.

If the toner cartridge isinstalled, remove it andinstall a new tonercartridge.

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Change invalid toner cartridge

Invalid engine code / Invalid network code

Light sequence Meaning Action:

The toner cartridge beingused is not designed forthis printer.

Install a toner cartridgecompatible to printer.

Light sequence Meaning Action:

The code in an internalprint server has not beenprogrammed, or theprogrammed code is notvalid.

Download validnetwork code to theinternal print server.

Press twicequickly to see thesecondary error code.

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Programming engine code / Programming system code

Cancel job / Reset printer

Light sequence Meaning Action:

New code is beingprogrammed into theengine or firmware codeflash.

Wait for the message toclear. When the printerhas finished programmingthe code, it performs asoft reset.

Light sequence Meaning Action:

The current print job iscanceled.

The printer is resettingto the user defaultsettings.

Any active print jobsare canceled.

A user default settingremains in effect untilchanged or untilrestored to factorydefault settings.

Wait for the message toclear.

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Service error

Printer error

Light sequence Meaning Action:

The printer has a serviceerror and printing hasstopped.

Turn the printer off andback on.

If the lights are stillblinking, contact the placewhere printer waspurchased.

Light sequence Meaning Action:

The printer has one of thefollowing errors:

Memory is full,insufficient to savewhat is in the buffer, orinsufficient todefragment flash

memory. A page is too complex

to print or is shorterthan the set pagemargins.

Resolution of aformatted page isreduced to 300 dpi.

A font error occurred.

Communication withthe host computer islost.

Press twicequickly to see thesecondary error code.See Secondary errorcodes on page 2-19for more information.

Press to clear the

secondary message.

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Secondary error codes

When the and lights are both on, a secondary error hasoccurred. Press and release twice quickly to display thesecondary error code light sequence.

When the and lights are both on, a paper jamsecondary error has occurred.

Press and release twice to display the secondary error codelight sequence.

The following tables show what these light sequences mean and

what to do.

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Paper jam in the manual feeder

Paper jams as it exits the tray into the printer

Light sequence Meaning Action:

A paper jam has occurredin the manual feeder.

Clear the paper jam.

Light sequence Meaning Action:

A paper jam has occurredas the paper is exiting thepaper tray and enteringthe printer.

Clear the paper jam.

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Paper jams as a printed job exits the printer

Complex page

Light sequence Meaning Action:

A paper jam has occurredas the paper is exiting theprinter.

Clear the paper jam.

Light sequence Meaning Action:

The page may not printcorrectly because theprint information on thepage is too complex (thatis, too large for theprinters memory).

Press to clear themessage and continueprocessing the print job(some of the print datamay be lost).

To avoid this error inthe future:

Reduce thecomplexity of thepage by reducing theamount of text orgraphics on the pageand deletingunnecessarydownloaded fonts ormacros.

Set Page Protect to

on in the LocalPrinter Setup Utility.

Install additional printermemory.

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Font error

Defective flash

Light sequence Meaning Action:

The printer has receiveda request for a PPDS fontwhich is not installed.

Press and releaseto cancel the print job.

Press and hold toreset the printer.

Press and releaseto clear the messageand continue printing.

Light sequence Meaning Action:

The printer detectsdefective flash memory.

Press to clear themessage and continueprinting.

Downloaded fontsand macros notpreviously stored inflash memory aredeleted.

Install flash memory.

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Insufficient defrag memory

Network interface errors

Light sequence Meaning Action:

The printer hasinsufficient memory tofree unused space inflash memory.

Delete fonts, macros,and other data in RAM.

Install additional printermemory.

Light sequence Meaning Action:

The printer cannotestablish communicationwith the network.

Press to clear themessage and continueprinting (the job may notprint correctly).

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Error communicating with host computer

Memory full

Light sequence Meaning Action:

The printer has lost theconnection to an externalprint server (also calledan external networkadapter or externalnetwork adapter (ENA)).

This light sequence isdisplayed if your printer isconnected to the network,but it cannot detect theprint server when you turnon the printer.

Make sure the cableconnecting the ENAand the printer issecurely attached.

Turn the printer off andthen on to reset theprinter.

Press and hold toreset the printer.

Light sequence Meaning Action:

The printer is processingdata, but the memoryused to store pages is full.

Press to clear themessage and continueprinting the job (the jobmay not print correctly).

Press and releaseto cancel the print job.

Press and hold to

reset the printer. To avoid this error inthe future:

Simplify the print job.Reduce thecomplexity of thepage by reducing theamount of text orgraphics on the pageand deleting

unnecessarydownloaded fonts ormacros.

Install additional printermemory.

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Unformatted flash

Invalid engine code

Light sequence Meaning Action:

The printer detectsunformatted flashmemory.

Press to clear themessage and continueprinting. The job maynot print correctly.

Reformat the flashmemory. Refer to theTechnical ReferenceonLexmarks Web site formore information.

If the error messageremains, the flashmemory may bedefective and shouldbe replaced.

Light sequence Meaning Action:

The code in an internalprint server has not beenprogrammed, or theprogrammed code is notvalid.

Download valid enginecode to the internal printserver.

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Service information with secondary and tertiarylight patterns

All service errors are indicated by all lights flashing as the primarynotification or code. The secondary code indicates an area orfunction which has the error. Tertiary codes (shown on the followingpages) indicate specific device errors. Double click to see thesecondary code. Double click again to see the tertiary code.

Note: All lights flashing simultaneously, as a result of sending datato the printer, may indicate a code problem. Call the next level ofsupport.

G Light on

Light off

Light blinking

x Light blinking slow

DoubleClick

DoubleClick

DoubleClick

Double Click

PrimaryCodes

SecondaryCodes

TertiaryCodes

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Secondary error codes

Secondary codes

Lights Primarycode

901

91x

92x

93x

94x

95x

96x

97x

98x

99x

Continue

Ready

Toner Low

/

Replace

PC Kit

Load

Paper

Paper Jam

Error

Software

DC motor or transfer roll

Fuser or toner sensor

Printhead, drive motor, RIP to engine

RIP to engine communication, engineelectronics

Controller card, specifically, NVRAM, ROM orNANDRAM memory

Network

Paper port communications

Device system card

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Tertiary service error codes

Service error codes are generally non-recoverable except in anintermittent condition when you can POR (power-on reset) theprinter to temporarily recover from the error.

Note: All service errors are initially communicated by all lightsflashing which is the primary indication or code. For brevity, thisindication is not repeated in the following codes.

1. Controller software error/illegal trap (90x)

Call the next level of support for a 900 error.

For the other errors, which indicate a faulty programmingprocess or faulty component on the controller card, replace thecontroller card.

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Controller software

Tertiary codes

Lights900

901

902

903

904

905

906

Continue

Ready

G

Toner Low /

Replace PC

Kit

G

Load Paper

G

Paper Jam

G

Error

G

RIPinterfacedrivererror

General enginesoftware error

Faulty engine code flash or

programming failed

Contact next level of support or1-800-539-6275

Secondary code

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Transfer roll

CAUTION: When you see this symbol, there is adanger from hazardous voltage in the area of the

product where you are working. Unplug the productbefore you begin, or use caution if the product mustreceive power in order to perform the task.

Code 917 indicates a problem in the transfer roll circuit. Check thecontinuity from the cable connection on the HVPS (high voltagepower supply) to the right side of the transfer roll.

Tertiary code

Lights917

Continue

Ready

G

Toner Low /

Replace PC

Kit

G

Load Paper

G

Paper Jam

G

Error

Secondary code

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Fuser, fan, or toner sensor error

Codes 920 through 929 indicate a problem in the fuser (see Fuserservice check on page 2-53 for more information), a stalled fan motoror a faulty toner sensor or toner cartridge.

Tertiary codes

Lights920

921

922

923

924

925

926

927

928

929

Continue

Ready

G

Toner Low /

Replace PC

Kit

G

Load Paper

G

Paper Jam

Error

G

Toner sensor ortoner cartridge

Fuser belowtemperature when

printing

Incorrect fuser lampinstalled

Open circuit inthermistor path

Fuser too hot duringprinting or idle

Fuser failed to reach standby temperature

Fuser below standbytemperature at idle

Secondarycode

Fan stalled

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Printhead, transport motor or RIP/engine communication error

Codes 930 through 935 indicate a problem with the printhead.Check cables to the printhead. Replace the printhead as necessary.

Codes 936 and 937 indicate a problem in the drive system.

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Code 939 indicates a communication failure between the RIP andengine processors.

Tertiary codes

Code930

931

932

933

934

935

936

937

939

Continue

Ready

G

Toner Low /

Replace PC

Kit

G

Load Paper

G

Paper Jam

Error

Secondarycode

Mirror motor not at opening speed.(Verify +24 V dc on pin #5 of J11.)

Mirror motor lost lock

Printhead - lost hsync

Printhead - no first hsync.(Verify interlock switch is

plugged in at J13.)

Transportmotor lostlock

Mirror motor locked

Wrong printhead

RIP/enginecommunica-tion error

Transportmotor initiallock failure

Mirror motor not at opening speed.(Verify +24 V dc on pin #5 of J11.)

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RIP to engine communication failure (controller card).

This indicates fuser control in the LVPS has failed or the wrong LVPShas been installed.

Tertiary

codes

Code940

Continue

Ready

G

Toner Low /

Replace PC

Kit

G

Load Paper

Paper Jam

G

Error

G

Secondarycode

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NVRAM failure

Error codes 950954 indicate a problem in the NVRAM (nonvolatilerandom access memory). Replace the operator panel assembly.

Codes 955959 indicate a failed controller card assembly. Replacethe controller card.

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Diagnostic information 2-39

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Tertiary codes

Code950

951

952

954

955

956

957

958

959

Continue

Ready

G

Toner Low /

Replace PC

Kit

G

Load Paper

Paper Jam

G

Error

Secondary code

NVRAM data does notmatch secure NVRAM

RIP firmware cannotcommunicate with secure

NVRAM

NVRAM chip failure

NVRAM CRC failure

SRAMfailure

NANDfailure

ASIC failure

Processor failure

Code ROM or NANDfailed cyclic redundancycheck (CRC)

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Note: NVRAM is on the operator panel printed circuit board (PCB)while secure NVRAM is on the controller PCB. Check marginalignments after replacing the operator panel assembly. SeePrinthead service check on page 2-61 for more information. Ifmargin errors are unacceptable, corrections can only be madethrough software. Contact the next level of support or Lexmark at1-800-539-6275.

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RAM memory error

This error indicates RAM failure. Remove DIMM(s) and POR theprinter. If the error persists, replace the card. If the error subsides,

check each DIMM independently. Replace faulty DIMM.

Tertiary codes

Code960

961

962

963

Continue

Ready

G

Toner Low /

Replace PC

Kit

G

Load Paper

Paper Jam

Error

G

Secondarycode

RAM in slot 1 is bad

RAM soldered on the board is bad

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Network error

Indicates an error in the network circuitry. Replace the controllercard assembly.

Tertiary codes

Code970

971

972

973

974

975

976

978

979

Continue

Ready

G

Toner Low /

Replace PC

Kit

G

Load Paper

Paper Jam

Error

Unrecognizablenetwork port

Unrecoverable software error in network port

Bad checksum while programming port

Flash parts failed while programming port

Secondary code

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Diagnostic information 2-43

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Paper port communication failure

Indicates an error communicating with Tray 2, if installed. RemoveTray 2 and recheck. If the error does not recur, replace Tray 2. If the

error recurs, replace the controller card assembly

Tertiary codes

Code980

981

982

983

984

Continue

Ready

G

Toner Low /

Replace PC

Kit

Load Paper

G

Paper Jam

G

Error

G

Secondary code

Engine experiencingunreliable communications

to specified device

Engine protocol violation detected bythe specified device Communications error detected by

specified device

Invalid commandreceived by specifieddevice

Invalid commandparameterreceived byspecified device

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Symptom tables

POST symptom table

Symptom Action

The main motor, cooling fan,and fuser do not come on.

See Cover interlock switch servicecheck on page 2-51.

POST completes except one ormore lights do not come on.

See Operator panel service checkon page 2-59.

None of the lights come on. See Operator panel service checkon page 2-59.

Main motor does not come on. See Main motor service check onpage 2-58.

Fan does not come on. See Cooling fan service check onpage 2-48.

Fuser lamp does not come on. See Cold fuser service check on

page 2-47.

Fuser lamp never turns off. See Hot fuser service check onpage 2-56.

The paper feed picks and triesto feed paper.

See Paper feed service checks onpage 2-61.

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Printer symptom table

Symptom Action

Dead machine (no power) See Dead machine service checkon page 2-52.

Fan noisy or not working See Cooling fan service check onpage 2-48.

Fuser parts melted See Hot fuser service check onpage 2-56.

Fuser lamp doesnt light See Cold fuser service check onpage 2-47.

Toner not fused to the paper SeeCold fuser service check onpage 2-47.

Paper jams See Paper feed service checks onpage 2-61.

Main motor noisy or not moving See Main motor service check on

page 2-58.

Paper skew See Paper feed service checks onpage 2-61.

Printer not communicating withhost

See Parallel port service check onpage 2-65.

Front access cover will notclose

See Cover interlock switch servicecheck on page 2-51.

Operator panel button notresponding

See Operator panel service checkon page 2-59 or Controller cardservice check on page 2-49.

Operator panel lights are off orvery dim

See Controller card service checkon page 2-49.

Blank page See Blank page on page 2-67.

Black page See Black page on page 2-68.

Heavy background See Heavy background onpage 2-69.

Light print See Light print on page 2-71.

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White or black lines or bands See White or black lines or bands

on page 2-72.

Toner on back of page See Toner on back of page onpage 2-72.

Paper never picks See Paper never picks onpage 2-63.

Paper feeds continuously See Paper picks during POST and/orcontinuously on page 2-62.

Paper wrinkled or bent See Paper trees, wrinkles, stackspoorly or curls on page 2-65.

Symptom Action

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Service checks

Service checks which involve measuring voltages on

the LVPS/HVPS (low voltage power supply/high voltagepower supply board) should be performed with the printerpositioned on its back side.

Note: When you make voltage readings, always use frame groundunless another ground is specified. See Wiring diagram onpage 5-4 for more information.

Cold fuser service check

Make sure the correct voltage lamp is installed. The voltage rating is

stamped on one of the lamp contacts.

FRU Action

Fuser AC cablesLVPS/HVPSFuser

If the fuser lamp comes on and a

fuser failure light error code displays,be sure the thermistor is contactingthe hot roll and the thermistor cableis firmly seated in connector J15 onthe controller card.

Check for excessive toner buildup onthe surface of the thermistor. Cleanas necessary.

With the printer unplugged,

disconnect the thermistor cable fromJ15 on the controller card.

Measure the resistance of thethermistor. The resistance measuresfrom approximately 1K ohmsimmediately after printing or POR toapproximately 240K ohms whenthermistor reaches roomtemperature. (It may take 30 minutesto cool.)

Replace the fuser assembly asnecessary.

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Cooling fan service check

FRU Action

Cooling fan Make sure the fan cable plug isproperly seated at J19 (controllercard).

Turn the printer off and disconnectthe cooling fan cable from thecontroller card.

Turn the printer on. Within a fewseconds the controller card

assembly should apply between+24 V dc to pin 2. See Controllerboard on page 5-3 for moreinformation.

If voltage is present and the fan isnot turning, replace the coolingfan. If the fan still doesnt function,replace the controller card.

Note: The fan speed is controlled by

a module on the PCB.Between +8 V and +24 V dcare constantly supplied atpin 2 (J19). Pin 1 is groundwhile pin 3 receives feedbackfrom the fan motor.

If voltage is not present, seeController board on page 5-3for more information.

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Diagnostic information 2-49

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Controller card service check

FRU Action

Controller card assembly Verify +24 V dc input from theLVPS/HVPS.

Turn the printer off. Disconnect the LVPS/HVPS

cable from the controller card atJ7. See Controller board onpage 5-3for more information.

Turn the printer on.

Verify +24 V dc from the cableconnector of J9, pin 8.

Verify that pin 7 on both the cableand the card connectors is ground.

If voltage is correct, check thecontinuity in the cable. If thecable is good, see theController board onpage 5-3for more information.

If grounds are not correct on thecable, first check it for continuityand then the LVPS/HVPS.

If the grounds are not correct onthe controller card, replace thecontroller card. (Check with oneprobe on the connector pin andthe other on the cards groundplane found at each screwhead.)

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Controller card service check (continued)

FRU Action

Controller card assembly Note: With all cables connected, theprinter should completePOST within approximately1215 seconds in thefollowing sequence:

1. All operator panel lights on solidmomentarily.

2. Lights then flash on and offsequentially.

After lights quit flashing, thelight turns on solid.

3. The cooling fan comes on.4. The fuser lamp comes on.5. The drive motor runs.6. The printhead motor runs.7. The printer cycles down into

standby mode/ready.

If immediately following poweronthe operator panel lights are activebut the printer does not go throughsteps 1 and 2 above, replace thecontroller card assembly.

Note: Settings for U.S. versusnonU.S. and the printerconfiguration ID can bechanged. See

Configuration anddiagnostic groups onpage 3-1 for moreinformation.

If some lights are on or flashing,see Common light sequenceson page 2-3 to determine actionrequired.

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Cover interlock switch service check

Note: Make sure a print cartridge assembly is installed and thecover closes all the way, engaging the cover open switchlever.

FRU Action

Cover interlock switch Disconnect the cover interlock cablefrom the controller card at J13.

Verify continuity between cablepin 1 and pin 2 with the door closed

but not open.

Verify continuity between cablepin 1 and pin 3 with the door openbut not closed.

If either fail continuity, replace thecover interlock switch.

If both pass continuity, turn theprinter on and verify +5 V dc on

pin 2 at J6 on the controller card. Verify pins 1 and 3 are ground. If voltage or ground is not present,

see Controller card servicecheck on page 2-49 for moreinformation.

Verify discontinuity between pins 2and 3 whether the door is open orclosed.

Replace the cover interlock switch iffaulty.

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Dead machine service check

CAUTION: Check the AC line voltage. The voltage should be

within the following limits:

100 V ac (volts alternating current) 127 V ac for the 110 Vprinter

200 V ac 240 V ac for the 220 V printer

FRU Action

LVPS/HVPS

Unplug the printer and check thefuses on the LVPS/HVPS board forcontinuity.

If open, replace the LVPS/HVPSboard.

If fuse opens again, see LVPS/HVPS service check onpage 2-57for more information

If not open, unplug the cables atCN102 and CN201 (fuser andcontroller card respectively).

Plug LVPS/HVPS board to sourceand turn switch on.

Verify 24 V dc on pin 8 at connectorCN201.

Verify line voltage (110 or 220 V ac)across pins 1 and 2 of CN102.

If either voltage is not correct,replace the LVPS/HVPS board.

If both voltages are correct, checkthe controller card. SeeController board on page 5-3for more information.

Verify grounds.

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Diagnostic information 2-53

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Fuser service check

When toner is partially fused to the paper, it is usually caused by lowfuser temperature.

Warning: Avoid handling the lamp as much as possible as it iseasily broken. Be careful not to touch the glass housingwith bare hands because skin acids can weaken theglass. The lamp is not a service part.

The line voltage to the printer must be within the following limits:

100 V ac127 V ac for the 110 V model printer 200 V ac240 V ac for the 220 V model printer

Turn the printer off and wait a few minutes for the fuser lamp to cool.Turn the printer on and observe the lamp turning on during POST.

You can see the light from the lamp by opening the leftside cover and observing the upper opening throughwhich the fuser power cables pass.

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Fuser service check (continued)

FRU Action

Lamp cableLVPS/HVPSFuser

Unplug the printer and disconnectthe fuser lamp cable plug from theLVPS/HVPS board connectorCN102.

Check for continuity across the fuserlamp by checking across theconnector pins.

If there is continuity, go to Step 1:

Continuity. If there is no continuity, go to

Step 2: No continuity.

Step 1: Continuity

Turn the printer on with only thefuser power disconnected.

Measure the voltage at connectorCN2 on the LVPS/HVPS. It should

match the line voltage. If line voltage is not present, see

LVPS/HVPS service check onpage 2-57for more information.

Make sure the fuser thermistor iscorrectly connected to the controllerboard. If the problem persists,disconnect the thermistor cable atJ15 and check for less than +5 V dc

on pin 1. Pin 2 should be ground. If line voltage is incorrect on pin 1,

seeController card servicecheck on page 2-49 for moreinformation.

Step 2: No continuity

Check the lamp cable for continuity.

If correct, replace the fuser.

If incorrect, replace the lampcable.

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Fuser service check (continued)

FRU Action

Fuser (continued)

Disconnect the thermistor cable fromJ15 on the controller card.

Measure the resistance across theends of the thermistor cable. SeeConnector locations onpage 5-1for more information.

Replace the fuser assembly if theresistance is lower than 1K ohm or

shorted.Note: Resistance measures

approximately 240K ohmswhen cool and 1.4K ohmshot.

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Hot fuser service check

Note: Ensure correct lamp is installed.

FRU Action

Fuser AC cables

LVPS/HVPSFuser

Measure the resistance of thethermistor. The resistance measuresfrom approximately 1K ohmsimmediately after printing or POR toapproximately 240K ohms whenthermistor reaches roomtemperature. (It may take 30 minutesto cool.)

Replace the fuser assembly asnecessary.

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Diagnostic information 2-57

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LVPS/HVPS service check

FRU Action

LVPS/HVPS

LVPS portion of board

Fuses that open typically indicate afaulty LVPS/HVPS.

Use the voltage meter to verify theappropriate voltage at the printerend of the power cable.

Remove the LVPS/HVPS assemblyfrom the printer.

Check continuity on the fuses.

If either fuse has opened, replacethe card.

Ensure the switch is off and plug thepower cord into the card.

Turn the switch on.

CAUTION: The card has several

points where AC voltage is

exposed.

Carefully verify the AC voltagebetween pins 1 and 2 matches thepower cable (wall) voltage.

If voltage is incorrect, replace thecard assembly.

Verify +24 V dc from pin 8 at CN201.

If voltage is incorrect, replace thecard assembly.

HVPS portion of board

Problems with the HVPS areexhibited in the print quality. SeePrint quality service checks onpage 2-66for more information.

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Main motor service check

FRU Action

Main motor cableLVPS/HVPSController card

Warning: Do notreplacethe operator panel andcontroller card at the sametime. Each card containsthe printer settings. Wheneither of these cards isnew, it obtains the settingsfrom the other card.

Settings are lost when bothare new and replaced atthe same time.

Verify +24 V dc at J9, pin 8 and+5 V dc at pin 1 (controller card).

Verify ground at pins 2 and 7 for boththe card and cable.

If these voltages are correct,check the main motor cable forcontinuity.

Remove rear cover to accessconnector on motor.

If continuity exists on each wire,call next level of service.

If continuity does not exist onone or more of the wires,replace the motor cable.

If these voltages are not correct,see the LVPS/HVPS servicecheck on page 2-57 or replace

the controller card.Note: The main motor is not aservice part.

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Operator panel service check

Inspect the operator panel cable for damage. Make sure the cable isplugged in securely.

Run POST and check each light for proper operation.

Operator panel service check

FRU Action

Operator panel Buttons

Open controller card cage andlocate the operator panel connectorat J16.

Check for continuity between pins 1and 2 of the cable as you press theContinue button.

Similarly, check the continuitybetween pins 1 and 6 of the cablewhile pressing Cancel .

If continuity is not present, replacethe operator panel.

Note: Check margin alignmentsafter replacing the operatorpanel assembly. If marginerrors are unacceptable,corrections can only be madethrough software. Contact thenext level of support or

Lexmark at18005396275.

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Operator panel service check (continued)

FRU Action

Operator panelController card

Warning: Do notreplace the

operator panel and

controller card at the

same time. Each card

contains the printer

settings. When either

of these cards is new,

it obtains the settings

from the other card.

Settings are lost when

both are new and

replaced at the same

time.

Lights

If none of the lights come on, makesure the cable is properly connectedto the controller card and thecontroller card has input voltage to it.

Verify +24 V dc on cable pin 8 at J7.

Check for +5 V dc at J16, pin 5See Controller card servicecheck on page 2-49 or page 5-3for more information.

If these voltages are not correct,replace the controller card.

If these voltages are correct,replace the operator panel.

If more than one light does not turnon or an individual light stays onsolid during POST, replace the

operator panel.

If all lights are dim and operateerratically during POST or all lightscome on and stay on solid duringPOST, replace the FRUs in thefollowing order one at a time:

Controller card Operator panel

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Printhead service check

Paper feed service checks

Paper jam error indication during POST

FRU Action

Printhead

Unplug the printer.

Disconnect the printhead cablesfrom J11 and J12 on the controllercard.

Turn the printer on.

On the controller card, verify+24 V dc on pin 5 at J11 and

+5 V dc on pin 7 at J12.Verify grounds on pin 4 at J11 andon pins 2, 6, and 8 at J12.

If voltages or grounds areincorrect, check the controllercard. See Controller cardservice check on page 2-49 formore information.

If voltages are correct, replace the

printhead (comes with cables).

FRU Action

Exit sensor If the exit sensor flag is not restingwithin the paper exit sensor duringPOST, the printer displays a paper

jam message. Make sure the flag isoperating freely and is correctlyinstalled.

Input sensorInput sensor #1 (under printcartridge assembly) andInput sensor #2 (manual)

Make sure the input paper feedsensors are working properly. Astuck or incorrectly installed sensorcauses this error.

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Paper picks during POST and/or continuously

Paper picks but stops half way through the printer

FRU Action

ACM (auto comp mechanism orpaper feed) clutchManual feed clutch

Check the ACM clutch for wear. Thesolenoid interacts with the clutch tocontrol the motion of the pick tires.

If the ratchet teeth of the ACM clutchassembly are worn or broken, thesolenoid may not stop the ACM fromrotating. Replace the ACM clutchassembly if necessary.

Check the manual feed clutch for thesame damage.

FRU Action

Input sensor #1 (under print

cartridge assembly) andInput sensor #2 (manual)

Make sure the input sensors are

working properly.

Check for a broken or stuck flag onthe input sensors.

Make sure the cables are seated onthe controller card at J20 (Tray 1input) and J18 (manual input).

Check for less than +5 V dc on pin 3at J20 (Tray 1 input) and pin 1 at J18

(manual input sensor). If correct, replace the input paper

feed sensor.

If these voltages are not correct,replace the controller card.

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Diagnostic information 2-63

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Paper never picks

FRU Action

Paper feed (pick tires) Open the left cover and verify thesolenoid and clutch are functioningwhen an attempt is made to feed thepaper.

Make sure the rubber tires areinstalled and clean.

Replace if necessary.

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Paper occasionally picks or picks multiple sheets at once

FRU Action

Tray 1Tray 2 (option)

Check tray for paper catch points.

If the sheet being fed stopsmomentarily, the ACM appliesadditional vertical force causingadditional sheets to feed.

Do not mix paper types.

Paper pick tires Check the tires in the ACM assembly

for signs of wear or damage.Replace the tires as necessary.

ACM clutch complete bill ofmaterial (CBM)Manual feed clutch CBM

Open left cover and observe thesolenoid and clutch actions at theACM and manual feed shafts as aprint job is attempted.

Replace the faulty part.

Controller card Disconnect the solenoid cable at J5on the controller card.

Measure the resistance across cablepins 1 and 2 and then pins 3 and 4.

The resistance should be180210 ohms.

If it is not, call the next level ofservice.

If the resistance is 180210 ohms,check the controller card. SeeController card service checkon page 2-49 for moreinformation.

Replace controller card asnecessary.

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Paper trees, wrinkles, stacks poorly or curls

Parallel port service check

1. Perform a print test to make sure the printer prints correctly.Verify is on, press to print menu settings.

2. Be sure the printer cable is designed for bidirectional printing.

3. Be sure the user Program is set up correctly.

4. If the internal print test page prints correctly, the userProgram/printer driver is set up correctly and the correct

bidirectional parallel cable is installed, but the printer still fails toprint on command from the host computer, replace thecontroller card.

FRU Action

Fuser This problem is most likely due to aworn backup roll. It causes theprinter to run hotter than required forthe media being printed. Excessiveheat can cause paper treeingproblems, poor stacking, or curl.

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Print quality service checks

Note: Ensure cover is closed tightly. A gap in the opening may allowlight to expose the photoconductor resulting in a dirty print.

Using print quality test pages

To help isolate print quality problems, like streaking, print test pagesusing the print quality test pages setting:

1. Turn the printer on with pressed and the front door open.

2. When light stays on, close cover.

3. Wait (approximately 7 seconds) until the printer drive activates.

4. Enter the configuration menu. See Configuration anddiagnostic groups on page 3-1 for more information.

5. Slowly press and release three times until the andlights come on.

6. Press and hold until all the lights flash to initiate print quality

test pages.

Three pages print to help you evaluate print quality. The firstpage has various fonts, the second page is gray, and the thirdpage is black. Once the paper exits into the output bin, theprinter returns to the homestate (four top lights on).

7. Use the test pages to isolate problems such as light or tonerstreaks. See Symptom tables on page 2-44 for solutions to

these problems.8. To exit print quality test pages, turn the printer off.

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Blank page

FRU Action

Toner cartridge (not a FRU) Remove the toner cartridge andgently shake it to evenly distributethe toner.

Check for cartridge damage.

PrintheadLVPS/HVPSController cardToner electrodes (cableassembly)

Blank pages can be caused by adefective printhead assembly,LVPS/HVPS, or controller card.

Printhead errors typically result inprinter service errors. Blank pages typically are caused

by the PC roll not being properlycharged. Try a different PC kit.

Unplug the printer and checkcontinuity between the LVPS/HVPSconnection pads marked OPC andthe corresponding pin inside theprinter.

If there is not continuity, call thenext level of service.

Try a different toner cartridge andPC kit.

If those fail, replace theLVPS/HVPS.

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Black page

Note: Incorrect laser exposure or incorrect charging of thephotoconductor causes an all black page. Always verify the

same results from a different print cartridge assembly anddeveloper before proceeding.

FRU Action

Toner electrodes (not a FRU) Check the electrodes below the printcartridge assembly forcontamination or damage. Correct

as necessary.Check continuity between the cableconnections on the contact tipsbelow the print cartridge assembly.

If continuity fails, call the next levelof service.

LVPS/HVPS boardController card

With the printer off, disconnect theLVPS/HVPS cable from J7 on the

controller card.Turn the printer on and verify+24 V dc on pin 8 of the cable.

Verify ground on pin 7.

If the voltage is incorrect, replaceLVPS/HVPS board.

If voltage is correct and the tonerelectrodes are good, replace the

controller card.

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Diagnostic information 2-69

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Heavy background

Poor development or poorly charged toner particles cause excessivebackground. This is more noticeable as the toner cartridge nears

endoflife.

FRU Action

Toner cartridge (not a FRU)PC Kit (not a FRU)

Make sure the toner cartridge andPC Kit are correctly installed and thehigh voltage contacts are clean.

If the toner cartridge and PC Kit are

installed correctly, try a new PC Kitfirst and then toner cartridge.

LVPS/HVPSController card

Check the contacts for correctinstallation and contamination wherecontact is made between the printcartridge assembly, and LVPS/HVPSboard. Clean as necessary.

If this does not correct the problem,

replace the following FRUs one at atime in the order shown:

LVPS/HVPS board Controller card

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