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Lexmark and Lexmark with diamond

design are trademarks of Lexmark

International, Inc., registered in the

United States and/or other countries.

Index

Safety and Notices

Trademarks

Start Diagnostics

Table of Contents

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Edition: September 2001

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 donot allow disclaimer of express or implied warranties in certain transactions; therefore, thisstatement may not 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 latereditions. Improvements or changes in the products or the programs described may bemade 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 [email protected]. Lexmark may use or distribute any of theinformation you supply in any way it believes appropriate without incurring any obligationto you. You can purchase additional copies of publications related to this product bycalling 1-800-553-9727. In other countries, contact your point of purchase.

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

Other trademarks are the property of their respective owners.

Copyright Lexmark International, Inc. 2001.

All rights reserved.

UNITED STATES GOVERNMENT RESTRICTED RIGHTS

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

U.S.A. P/N: 12G9065

4500E32x

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Table of Contents

Laser Notices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viiSafety Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvii

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

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

Model Differences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1Printer Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1Printer Dimensions and Clearance . . . . . . . . . . . . . . . . . . . 1-2

Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3Acronyms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

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

Operator Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2Status Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3Attendance Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Service Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7Service Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11

Operator Panel LED Summary Table . . . . . . . . . . . . . . . . 2-28Error Code Table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-28PowerOn Self Test (POST). . . . . . . . . . . . . . . . . . . . . . . 2-36Symptom Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-36

Service Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-39Cooling Fan Service Check. . . . . . . . . . . . . . . . . . . . . . . . 2-40Cover Interlock Switch Service Check . . . . . . . . . . . . . . . 2-40Engine Board Service Check . . . . . . . . . . . . . . . . . . . . . . 2-41

Dead Machine Service Check. . . . . . . . . . . . . . . . . . . . . . 2-43Low Voltage Power Supply (LVPS) Service Check . . . . . 2-44Fuser Service Check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-45Cold Fuser Service Check . . . . . . . . . . . . . . . . . . . . . . . . 2-47Hot Fuser Service Check . . . . . . . . . . . . . . . . . . . . . . . . . 2-48Main Motor Service Check . . . . . . . . . . . . . . . . . . . . . . . . 2-48Operator Panel Service Check . . . . . . . . . . . . . . . . . . . . . 2-49Operator Panel Button Service Check . . . . . . . . . . . . . . . 2-50

Paper Feed Service Checks . . . . . . . . . . . . . . . . . . . . . . . 2-51Parallel Port Service Check . . . . . . . . . . . . . . . . . . . . . . . 2-54Print Quality Service Checks. . . . . . . . . . . . . . . . . . . . . . . 2-55Solving Print Quality Problems . . . . . . . . . . . . . . . . . . . . . 2-62Resetting User Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . 2-70Using the Special Function Menu . . . . . . . . . . . . . . . . . . . 2-71

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Restoring Factory Defaults. . . . . . . . . . . . . . . . . . . . . . . . 2-72Using Hex Trace Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . 2-73Using Print Quality Test Pages . . . . . . . . . . . . . . . . . . . . 2-74Advanced Troubleshooting Mode. . . . . . . . . . . . . . . . . . . 2-75

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

Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1Performing Self Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1Information Priority . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Printer Operation Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2Printer Modes Summary Table . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Normal Printing Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

Demo Printing Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7Printing Menu Settings Page . . . . . . . . . . . . . . . . . . . . . . . 3-8Diagnostic Tests Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9Special Function Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11Configuration Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14

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

Handling ESD-Sensitive Parts . . . . . . . . . . . . . . . . . . . . . . . . 4-1Removal Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Cover Removals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2Auto Sheet Feed (ASF) Assembly Removal . . . . . . . . . . . 4-3Printhead Assembly Removal . . . . . . . . . . . . . . . . . . . . . . 4-4Controller Board Removal . . . . . . . . . . . . . . . . . . . . . . . . . 4-4Controller Board Cage Removal . . . . . . . . . . . . . . . . . . . . 4-4High Voltage Power Supply (HVPS) Removal . . . . . . . . . 4-5Cooling Fan Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5Low Voltage Power Supply (LVPS) Removal. . . . . . . . . . . 4-5

Engine Board Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6Charge Roll Assembly Removal. . . . . . . . . . . . . . . . . . . . . 4-6Fuser Assembly Removal . . . . . . . . . . . . . . . . . . . . . . . . . 4-6Transfer Roll Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7Paper Feed Clutch Solenoid Removal . . . . . . . . . . . . . . . . 4-7D Roll Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8

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

LVPS Low Voltage Power Supply Board . . . . . . . . . . . . 5-1Engine Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2RIP Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6HVPS High Voltage Power Supply Board . . . . . . . . . . . . 5-7Option Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8

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

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

How to Use this Parts Catalog . . . . . . . . . . . . . . . . . . . . . . . . 7-1Assembly 1: Covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

Assembly 2: Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4Assembly 3: Fuser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6Assembly 4: Main Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8Assembly 5: Paper Feed . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-10Assembly 6: Printhead . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-12Assembly 7: Electronics . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-14Assembly 8: Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-16Assembly 9: Cables (no illustration) . . . . . . . . . . . . . . . . . . . . 7-18Assembly 10: Miscellaneous (no illustration) . . . . . . . . . . . . . 7-20

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

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Laser Notices vii

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Laser Notices

The following laser notice label may be affixed to this printer:

Laser Advisory Label

Class 1 Laser Statement Label

The laser statement label is located on the rear of the rear coverassembly.

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Laser Notice

The printer is certified in the U.S. to conform to the requirements of

DHHS 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.

Class I laser products are not considered to be hazardous. Theprinter 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 so

there is never any human access to laser radiation above a Class Ilevel during normal operation, user maintenance, or prescribedservice condition.

Laser

Der 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 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 Wellen

der 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 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.

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 della classe1.

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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 para productos lserde 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.

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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Laserinformatie

De printer voldoet aan de eisen die gesteld worden aan een

laserprodukt van klasse I. Voor de Verenigde Staten zijn deze eisenvastgelegd in DHHS 21 CFR Subchapter J, voor andere landen inIEC 60825.

Laserprodukten van klasse I worden niet als ongevaarlijkaangemerkt. De printer is voorzien van een laser van klasse IIIb(3b), dat wil zeggen een gallium arsenide-laser van 5 milliwatt meteen golflengte van 770-795 nanometer. Het lasergedeelte en de

printer zijn zo ontworpen dat bij normaal gebruik, bij onderhoud ofreparatie conform de voorschriften, nooit blootstelling mogelijk isaan laserstraling boven een niveau zoals voorgeschreven is voorklasse 1.

Lasermeddelelse

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

Klasse I-laserprodukter betragtes ikke som farlige. Printerenindeholder internt en Klasse IIIB (3b)-laser, der nominelt er en 5milliwatt galliumarsenid laser, som arbejder p blgelngdeomrdet770-795 nanometer. Lasersystemet og printeren er udformetsledes, at mennesker aldrig udsttes for en laserstrling overKlasse I-niveau ved normal drift, brugervedligeholdelse eller

obligatoriske servicebetingelser.

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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 -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.

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.

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.

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

This product is designed, tested and approved to meet strictglobal safety standards with the use of specific Lexmarkcomponents. The safety features of some parts may not alwaysbe obvious. Lexmark is not responsible for the use of otherreplacement 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 personalinjury during disassembly and servicing of this product.Professional service personnel should understand this and takenecessary precautions.

Consignes de Scurit

Ce produit a t conu, test et approuv pour respecter lesnormes strictes de scurit globale lors de l'utilisation decomposants Lexmark spcifiques. Les caractristiques descurit de certains lments ne sont pas toujours videntes.Lexmark ne peut tre tenu responsable de l'utilisation d'autrespices de rechange.

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.

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Norme di sicurezza

Il prodotto stato progettato, testato e approvato in conformit a

severi standard di sicurezza e per lutilizzo con componentiLexmark specifici. Le caratteristiche di sicurezza di alcune partinon sempre sono di immediata comprensione. Lexmark non responsabile per lutilizzo di parti di ricambio di altri produttori.

Le informazioni riguardanti la manutenzione di questo prodottosono indirizzate soltanto al personale di assistenza autorizzato.

Durante lo smontaggio e la manutenzione di questo prodotto, ilrischio di subire scosse elettriche e danni alla persona pielevato. Il personale di assistenza autorizzato, deve, quindi,adottare le precauzioni necessarie.

Sicherheitshinweise

Dieses Produkt und die zugehrigen Komponenten wurdenentworfen und getestet, um beim Einsatz die weltweit gltigen

Sicherheitsanforderungen zu erfllen. Die sicherheitsrelevantenFunktionen der Bauteile und Optionen sind nicht immeroffensichtlich. Sofern Teile eingesetzt werden, die nicht vonLexmark sind, wird von Lexmark keinerlei Verantwortung oderHaftung fr dieses Produkt 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.

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Pautas de Seguridad

Este producto se ha diseado, verificado y aprobado para

cumplir los ms estrictos estndares de seguridad globalusando los componentes especficos de Lexmark. Puede quelas caractersticas de seguridad de algunas piezas no seansiempre evidentes. Lexmark no se hace responsable del uso deotras piezas de recambio.

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.

Informaes de Segurana

Este produto foi concebido, testado e aprovado para satisfazeros padres globais de segurana na utilizao de componentesespecficos da Lexmark. As funes de segurana de algunsdos componentes podem no ser sempre bvias. A Lexmarkno responsvel pela utilizao de outros componentes desubstituio.

As informaes de segurana relativas a este produtodestinam-se a profissionais destes servios e no devem ser

utilizadas por outras pessoas. Risco de choques elctricos e ferimentos graves durante a

desmontagem e manuteno deste produto. Os profissionaisdestes servios devem estar avisados deste facto e tomar oscuidados necessrios.

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Informaci de Seguretat

Aquest producte est dissenyat, comprovat i aprovat per tal

d'acomplir les estrictes normes de seguretat globals amb lautililitzaci de components especfics de Lexmark. Lescaracterstiques de seguretat d'algunes peces pot ser que nosempre siguin bvies. Lexmark no es responsabilitza de l'usd'altres peces de recanvi.

La informaci pel manteniment daquest producte estorientada exclusivament a professionals i no est destinada aning 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 prendre lesmesures convenients.

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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, general environmental, safety instructions, and themaintenance approach used to repair it.

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

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 FRUs.

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

6. Parts Catalog contains illustrations and part numbers for

individual FRUs.

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1. General Information

The Lexmark E32x is a letterquality laser page monochromedesktop printer designed to fit into space critical environments andyet not sacrifice speed or ease of use. The E32x attaches to an IBMPersonal Computer or other computers compatible with the IBMPersonal Computer (with 386 processor or higher) and MacintoshComputers via the USB connection.

Three printer models are available:

The Lexmark E320 printer with 4MB of standard memory. The Lexmark E322 printer with 8MB of standard memory. The Lexmark E322n printer with standard Ethernet and 16MB

of standard memory.

Model Differences

Printer Operation

Paper is held in a 150 page tray where it is picked by a centerfed D

shape pick roller. The paper follows an L shape path as it movesthrough the printer. Images are created with toner on an OPC drumwithin the toner cartridge. A transfer roller then draws the toner offthe OPC drum onto the paper. Once the toner is affixed to the paperby the fuser, the paper exits either the top or front of the printer.

E320 E322 E322n

MT/Model 4500001 4500002 4500003

Speed 16 ppm 16 ppm 16 ppm

Base Memory 4MB 8MB 16MB

PostScriptLevel 2

emulation

MACcompatibility

Standard Standard

PPDS Not available Standard Standard

PCL PCL 5E PCL 6 PCL 6

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Printer Dimensions and Clearance

The following table contains the dimensions for each printer model.This does not include packaging but does include the print cartridgethat ships with the printer.

Physical

DimensionsE320/E322/E322n

Height 221 mm (8.7 inches)

Width 380 mm (15.0 inches)

Depth 368 mm (14.5 inches)

Operating Clearance

Left and right sides 304.8 mm (12 inches)

Front 304.8 mm (12 inches)

Rear 508 mm (20 inches)

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Options

The following options are available for the Lexmark E32x.

Note: Some options are not available in every country. Contact yourpoint of purchase for options available in your country.

Note: Standard RAM is soldered on the engine board.

Option E320 E322 E322n

Tray 2 Available Available Available

Memory

Total Possible

4MB, 8MB,

16MB, 32MB,64MB

4MB, 8MB,

16MB, 32MB,64MB

4MB, 8MB,

16MB, 32MB,64MB

66MB 72MB 80MB

Flash Not Available 1, 2, 4MB 1, 2, 4MB

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Acronyms

ASF Auto Sheet Feed

B/M Bill of MaterialCRLF Carriage Return Line Feed

CSU Customer Setup

DRAM Dynamic Random Access Memory

EP Electrophotographic Process

EPROM Erasable, Programmable ReadOnly MemoryESD Electrostatic Discharge

ENA Enterprise Networking Association

FRU Field Replaceable Unit

HVPS High Voltage Power Supply

INIT Initialize

IPDS Intelligent Printer Data Stream

LASER Light Amplification by Stimulated Emission ofRadiation

LCD Liquid Crystal Display

LED LightEmitting DiodeLFCR Line Feed Carriage Return

LVPS Low Voltage Power SupplyMROM Masked Read Only Memory

NVRAM Nonvolatile Random Access Memory

OEM Original Equipment Manufacturer

OPC Optical Photoconductor

PC Photoconductor

PJL Printer Job Language

POR Power On Reset

POST PowerOn Self TestPPDS Personal Printer Data Stream

PSU Power Supply Unit

RAM Random Access Memory

ROM Read Only Memory

SIMM Single Inline Memory Module

SRAM Static Random Access Memory

THM Thermistor

UPR Used Parts ReturnUSB Universal Serial Bus

V ac Volts alternating current

V dc Volts direct current

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2. Diagnostic Information

CAUTION:NEVER

manually actuate or disable the top coverinterlock switch and the printhead shutter actuator at the sametime.

To perform some of the service checks and tests, such astroubleshooting paper feed problems, you need to actuate the topcover interlock switch with the covers open or removed and powerapplied to the machine. It is important for personal safety that youDO NOT, FOR ANY REASON, disable the printhead shutter actuator

when power is on.

Remove power from the printer before you connect or disconnectany cable or electronic board or assembly for personal safety and toprevent damage to the printer.

Use the service error code, user error message, symptom table,service checks, and diagnostic aids in this chapter to determine the

corrective action necessary to repair a malfunctioning printer.

The LEDs on the operator panel can indicate either a user errormessage or service error message. When a service error occurs,the printer stops printing and all operator panel LEDs blink in acontinuous pattern, indicating a service error, until the printer ispowered off. If all operator panel LEDs are blinking, go to theService Error Codes on page 2-11 for more information.

When a user error message occurs, one or more operator panelLEDs are on solid or blinking. See the Status Information onpage 2-3 for more information.

If your machine does not have a service error code and does notcomplete POST, go to the POST Symptom Table on page 2-36.If your machine completes POST without an error, and you have asymptom, go to the Printer Symptom Table on page 2-37.

Locate your symptom and take the appropriate action.

If a service error code appears while you are working on themachine, go to the Service Error Codes on page 2-11 and takethe indicated action for that error.

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Operator Panel

The 4500E32x operator panel consists of six indicator LEDs and

1 button. The information provided by the six LEDs is classified intothree groups:

Status Attendance Service

Depending on the LED sequence, briefly (approximately 1 second)push the operator panel button to restart the printer, display an error

code, or activate other printer functions.

The operator panel LED table (see page 2-3) can be used todetermine the type of message displayed based on whichcombination of LEDs are on or flashing.

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Status Information

Ready

The printer is in a Ready state.

Ready indicates the printer is ready to receive and process datafrom the host system.

Brief button press executes a print test. Long button press executes a printer reset.

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Attendance Information

When attendance information is displayed, the user is required toopen the printer cover and clear all paper from the paper path. Theuser indicates that the jam is cleared by closing the cover or byperforming a brief button press.

Paper Jam

A paper jam is detected.

Brief button press assumes the jam has been cleared. Awarmup is performed, and the print job resumes.

Long button press is ignored. Open/close cover assumes the jam has been cleared. Awarmup is performed, and the job prints.

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Host Interface Error

This error is generated when the printer detects an errorcommunicating with the host computer. There are three causes of

this error:

Parallel ENA Connection Lost

During the printers poweron cycle, it detects that theconnection to an external network adapter has been lost. Oncea connection is initially established, a printer setting is modifiedto note that the connection exists. Then, each time the power iscycled on the printer, if the setting states a connection exists,the printer attempts to communicate with the adapter. If theadapter does not respond, this message is posted.

This error is only detected during the poweron cycle. Thismeans if the external network adapter connection is lost afterthe poweron cycle is complete, this error is not detected. Theprinter cannot distinguish between an adapter which is quiet, forexample, not sending any data, and an adapter which has beendisconnected.

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Standard Parallel Port Disabled

This error is generated when the host computer attempts tocommunicate with the printer through the standard parallel port,

but the parallel port has been disabled either through the printerconfiguration mode, or through the MarkVision host utility.

Standard USB Port Disabled

This error is generated when the host computer attempts tocommunicate with the printer through the standard USB port,but the USB port has been disabled either through the printer

configuration mode, or through the MarkVision host utility.

The error recovery process for this error is:

1. If this error occurs at poweron and an ENA is attached to theprinter, verify the ENA is properly connected.

2. When the printer is in the Ready state, press the operator panelbutton to print a menus settings page.

3. Under the parallel menu, look for the parallel buffer line. Ifthis line says disabled and the host computer is trying to printusing the parallel port, reenable the parallel port usingMarkVision or the printers configuration mode.

4. Under the USB menu, look for the USB buffer line. If this linesays disabled and the host computer is trying to print using theUSB port, reenable the USB port using MarkVision or theprinter configuration mode.

See Configuration Mode on page 3-14 for information on usingthe printer configuration mode to enable a disabled port.

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Service Information

There are three levels of service code information.

Primary service error codes Secondary service error codes Subcodes (sub set of the secondary codes)

Service information is displayed whenever the printer is in the checkstate, and the printer needs servicing. In general, service errors arenotrecoverable. However, it may be possible to turn the printer off

and back on to temporarily recover from the error condition if it isintermittent.

When a service error occurs, the printer stops printing immediately.The only recovery is to turn off the printer.

The following operator panel is an example indicating a primaryservice error code condition.

Brief button press displays a service error code pattern.

Long button press displays a service error code pattern. Double click button press not available. Open/close cover is ignored.

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Primary Service Error Codes

When a service error occurs the printer stops printing and alloperator panel LEDs blink in a continuous pattern, indicating a

service error, until the printer is turned off.

Press and release the operator panel button to display thesecondary service error code.

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Secondary Service Error Codes

The operator panel button has been pushed and a secondaryservice error has occurred indicating a fuser failure.

Once the error code is displayed, if the operator panel button ispushed again, the operator panel displays the service errorindication all 6 indicator LEDs blinking. Continual pressing of thebutton causes the LEDs to repeat in the following order:

1. Service error indication

2. Fuser service error code indication


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Subcode Service Error Code

Pressing the operator panel button again, indicates a fuser failureunder temperature subcode.

Once the subcode is displayed, if the operator panel button ispushed again, all 6 indicator LEDs blink. Continual pressing of theoperator panel button causes the LEDs to repeat in the followingorder:


2. Fuser failure service error code indication

3. Fuser failureunder temperature service error subcode

indication4. Service error indication

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Service Error Codes

Software Service Error Code

The operator panel button has been pushed and a secondaryservice error has occurred indicating a software error.

Once the error code is displayed, if the operator panel button ispushed again, the operator panel will display the service errorindication all 6 indicator LEDs blinking. Continual pressing of theoperator panel button causes the LEDs to repeat in the followingorder:

1. Service error indication2. Software service error code indication


Place the printer into the special function menu and run a print test.See Using the Special Function Menu on page 2-71 for moreinformation. If the printer does not run printer diagnostics, replacethe controller board.

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Fuser Failure Over Temperature Error Code

The operator panel is indicating a fuser failure over temperaturesubcode.

See Hot Fuser Service Check on page 2-48, for moreinformation.

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Fuser Failure Under Temperature Error Code

The operator panel is indicating a fuser failure under temperaturesubcode.

See Cold Fuser Service Check on page 2-47, for moreinformation.

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Fuser Failure Under Temperature Error Code Standby



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Fuser Failure Under Temperature Error Code While Printing



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Fuser Failure Thermister Open Error Code

The operator panel is indicating a fuser failure thermister opensubcode.

Replace the fuser assembly.

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Mirror Motor Failure Service Error Code

The operator panel button has been pushed and a mirror motorfailure service error has occurred.

Once the error code is displayed, if the operator panel button ispushed again, the operator panel displays the service errorindication all 6 indicator LEDs blinking. Continual pressing of theoperator panel button causes the LEDs to repeat in the followingorder:


2. Mirror motor failure service error code indication


Inspect the printhead cable and replace the assembly as necessary.If this does not correct the problem, replace the engine/LVPS board.

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Optional Memory Service Error Code

The operator panel button has been pushed and a memory serviceerror has occurred.



2. Optional memory service error code indication


Replace the optional memory DIMM. If this does not correct theproblem, replace the Code Overlay ROM, Flash SIMM or thecontroller board.

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ROM Checksum Failure Service Error Code

The operator panel button has been pushed and a ROM checksumfailure service error has occurred.



2. ROM checksum failure service error code indication


Replace the ROM SIMM. If this does not correct the problem,replace the controller board.

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Base Memory Service Error Code

The operator panel button has been pushed and a base memoryservice error has occurred.

Once the error code is displayed, if the operator panel button ispushed again, the operator panel will display the service errorindication all 6 indicator LEDs blinking. Continual pressing of theoperator panel button causes the LEDs to repeat in the followingorder:


2. Base memory service error code indication


Replace the controller board.

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NVRAM Failure Service Error Code

The operator panel button has been pushed and a NVRAM failureservice error has occurred.



2. NVRAM failure service error code indication


Replace the engine board.

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ASIC Register Failure Service Error Code

The operator panel button has been pushed and an ASIC registerfailure service error has occurred.



2. ASIC register failure service error code indication



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ASIC SRAM Failure Service Error Code

The operator panel button has been pushed and an ASIC SRAMfailure service error has occurred.



2. ASIC SRAM failure service error code indication



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Flash Memory Failure Service Error Code

The operator panel button has been pushed and a flash memoryfailure service error has occurred.



2. Flash memory failure service error code indication


Replace the Flash memory. If this does not correct the problem,replace the controller board.

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Font Checksum Failure Service Error Code

The operator panel button has been pushed and a font checksumfailure service error has occurred.



2. Font checksum failure service error code indication


Replace the ROM SIMM. If this does not correct the problem,replace the controller board.

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Engine Communication Failure Service Error Code

The operator panel button has been pushed and an enginecommunication failure service error has occurred.



2. Engine communication failure service error code indication


Replace the engine board.

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Error Codes/Conditions Not Detected or Reported

The printer does not detect or report the following conditions/errors:

Incorrect manual feed Output bin full Print cartridge missing (reported as top cover open error)

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Operator Panel LED Summary Table

Error Code Table

Operator Panel LED Description

Operator panel LED is on.

Operator panel LED is off.

Operator panel LED is blinking.

Operator panel LED is blinkingslowly.

Ready

/Data

Toner

Low

Load

Paper

Paper

JamError

Press

ButtonCondition

Ready

Demo Ready

Offline(Remote)

Busy

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Waiting

RestoringFactoryDefaults

SavingSettings

Resetting

Printer

FlushingBuffer

Hex Trace

Paper Jam

Load ManualPaper/Envelope

Load Paper/

EnvelopeTray 1orTray 2

Load PaperTray 1 forSide 2 ofManualDuplex

Top CoverOpen

Ready

/Data

Toner

Low

Load

Paper

Paper

JamError

Press

ButtonCondition

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TonerCartridgeError

Printer Error

FlashMemory Full

DiagnosticTest Mode

Operator Panel LEDs When Toner Is Low

Ready and

Toner Low

Demo Readyand TonerLow

Offline(remote) andToner Low

Busy andToner Low

Waiting andToner Low

Ready

/Data

Toner

Low

Load

Paper

Paper

JamError

Press

ButtonCondition

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RestoringFactoryDefaults

SavingSettings

ResettingPrinter andToner Low

Flushing

Buffer andToner Low

Hex Traceand TonerLow

Paper Jamand Toner

Low

Load ManualPaper/Envelopeand TonerLow

Load Paper/Envelope

Tray 1 andToner Low

Load PaperTray 1 forSide 2 ofManualDuplex andToner Low

Load PaperTray 2 andToner Low

Top CoverOpen andToner Low

Ready

/Data

Toner

Low

Load

Paper

Paper

JamError

Press

ButtonCondition

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TonerCartridgeError

Printer Errorand TonerLow

FlashMemory Full

and TonerLow

DiagnosticTest Modeand TonerLow

Printer Error Secondary Codes

Memory Full

ComplexPage

Short Paper

Toner LowIntervention

ResolutionReductionWarning

Font Error

Ready

/Data

Toner

Low

Load

Paper

Paper

JamError

Press

ButtonCondition

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ResourceSave OffDeficientMemory

InsufficientDefragMemory

Host

InterfaceError(Parallel ENAConnectionLost,StandardParallel PortDisabled,StandardUSB Port

Disabled)

Service Error Codes

For some service error codes, a second service error code is usedto further describe the error. When a service error occurs, pressingthe operator panel button after viewing the primary service errorcode displays the secondary service error code. The following tablecontains the secondary service error codes.

Primary Service Error Codes

Service ErrorSeepage 2-8.

Secondary Service Error Codes

SoftwareErrorSeepage 2-11.

Ready

/Data

Toner

Low

Load

Paper

Paper

JamError

Press

ButtonCondition

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Fuser FailureSeepage 2-12.

Mirror MotorFailureSeepage 2-17.

Optional

MemorySeepage 2-18.

ROMChecksumSeepage 2-19.

Base

MemorySeepage 2-20.

NVRAMFailureSeepage 2-21.

ASIC

RegisterFailureSeepage 2-22.

ASIC SRAMFailureSeepage 2-23.

FlashMemoryFailureSeepage 2-24.

Ready

/Data

Toner

Low

Load

Paper

Paper

JamError

Press

ButtonCondition

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FontChecksumSeepage 2-25.

EngineCommunication FailureSeepage 2-26.

Fuser Service Error Subcodes

Fuser Failure OverTemperatureSeepage 2-12.

Fuser Failure

UnderTemperatureSeepage 2-13.

Fuser Failure ThermisterOpenSeepage 2-16.

Ready

/Data

Toner

Low

Load

Paper

Paper

JamError

Press

ButtonCondition

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PowerOn Self Test (POST)

When you turn the printer on, it performs a PowerOn Self Test.Check for correct POST functioning of the base printer by observingthe following:

Symptom Tables

POST Symptom Table

Symptom Action

The main motor, cooling fan andfuser do not come on.

See the Cover Interlock SwitchService Check on page 2-40.

POST completes except one ormore LEDs do not come on.

See the Operator Panel ServiceCheck on page 2-49.

None of the LEDs come on. See the Operator Panel ServiceCheck on page 2-49.

Main motor does not come on. See the Main Motor Service

Check on page 2-48.

Fan does not come on. See the Cooling Fan ServiceCheck on page 2-40.

Fuser lamp does not come on. See the Cold Fuser ServiceCheck on page 2-47.

Fuser lamp never turns off. See theHot Fuser ServiceCheck on page 2-48.

The paper feed picks and tries tofeed paper.

See thePaper Feed ServiceChecks on page 2-51.

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Printer Symptom Table

Symptom Action

Dead Machine (no power) See the Dead Machine ServiceCheck on page 2-43.

Fan noisy or not working See the Cooling Fan ServiceCheck on page 2-40.

Fuser parts melted See the Hot Fuser ServiceCheck on page 2-48.

Fuser lamp doesnt light See the Cold Fuser ServiceCheck on page 2-47.

Toner not fused to the paper See the Cold Fuser ServiceCheck on page 2-47.

Blank page See the Blank Page onpage 2-55.

Black page See the Black Page onpage 2-56.

Heavy background See the Heavy Background onpage 2-57.

Light print See the Light Print onpage 2-59.

White or black lines or bands See the White or Black Lines orBands on page 2-60.

Toner on back of page See the Toner on Back of Pageon page 2-60.

Incorrect characters print See the Incorrect CharactersPrint on page 2-61.

Paper jams See the Paper Feed ServiceChecks on page 2-51.

Main Motor noisy or does not

move

See the Main Motor Service

Check on page 2-48.

Paper never picks See the Paper Never Picks onpage 2-52.

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Paper feeds continuously See the Paper Picks During POST

and/or Continuously onpage 2-51.

Paper skew See the Paper Feed ServiceChecks on page 2-51.

Printer not communicating withhost

See the Parallel Port ServiceCheck on page 2-54.

Paper wrinkled or bent See the Paper Trees, Wrinkles,Stacks Poorly Or Curls onpage 2-53.

Top cover will not close See the Cover Interlock SwitchService Check on page 2-40.

Operator panel button does notrespond

See the Operator Panel ButtonService Check on page 2-50.

Operator panel LEDs do not lightor very dim

See the Operator Panel ServiceCheck on page 2-49.

Symptom Action

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Service Checks

Service checks which involve measuring voltages of the LVPS/

engine boards must be performed with the printer positioned on itsback side. This provides the servicer access to the circuit boardsunderneath the printer while supplying necessary power to the restof the printer.

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Cooling Fan Service Check

Cover Interlock Switch Service Check

Note: Make sure a toner cartridge is installed and the cover closesall the way, engaging the cover open switch lever.

FRU Action

Cooling Fan Make sure the cooling fan motorcable plug is properly seated on theengine board.

Turn the printer off and disconnectthe cooling fan cable on the engineboard.

Turn the printer on. Within

approximately 3 seconds the engineboard should apply +24V dc to thefan. See Connector Locationson page 5-1 for more information.

If voltage is present, replace thecooling fan.

If voltage is not present, see theEngine Board Service Checkon page 2-41.

FRU Action

Cover Interlock Switch Disconnect the cover interlock cableplug from the engine board.

Push the cover interlock switch tothe closed position and check forcontinuity. See ConnectorLocations on page 5-1for moreinformation.

If the switch does not close, replacethe switch.

Check for +24V dc. If voltage is notpresent, see Engine Board Ser-vice Check on page 2-41.

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Engine Board Service Check

FRU Action

Engine Board Ensure +24V dc from the LVPSboard to the engine board.

1. Turn off printer.2. Disconnect the fuser lamp cable

plug from the LVPS board. SeeConnector Locations onpage 5-1for more information.

3. Disconnect the LVPS/engine

board jumper cable from theengine board. See ConnectorLocations on page 5-1 for moreinformation.

If voltage is correct, ensureJ12PSU is properly seated in theJ12PSU connector on the engineboard.

Check for +24V dc on the cable. If voltages are not present or

incorrect, see the Low VoltagePower Supply (LVPS) ServiceCheck on page 2-44.

Note: With all cables connected,

the printer should complete

POST within approximately

1215 seconds in the followingsequence:

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Engine Board (continued) 1. All operator panel LEDs turn on

solid.2. All operator panel LEDs turn off.3. LEDs then sequence on and off

one at a time starting with thePress Button LED.

After 2 complete LEDsequences, the Ready LEDturns on solid.

4. The cooling fan comes on.5. The fuser lamp comes on.6. The drive motor runs.7. The printhead motor runs.8. The printer cycles down into

standby mode/ready.

If the operator panel LEDs come onsolid and never turn off, replace thecontroller board and/or controller

cable.

If some LEDs are on or flashing, seethe Status Information onpage 2-3 to determine a course ofaction and/or replace the engineboard.

FRU Action

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Dead Machine Service Check

Note: Check the AC line voltage. The voltage should be within thefollowing limits:

100 V ac 127 V ac for the low voltage model printer 200 V ac 240 V ac for the high voltage model printer

FRU Action

Low Voltage Power Supply Fuse(LVPS)

Check the fuse on the LVPS boardfor continuity.

If open, replace with appropriatefuse.

If fuse opens again, see LowVoltage Power Supply (LVPS)

Service Check onpage 2-44.

If not open, see power switchbelow.

Power Switch Turn on the printer power switch.

Check for ac line voltage in theswitch cable, CN1 (LVPS board),between pin 1 and ground andbetween pin3 and ground.

If line voltage is present, see theCover Interlock Switch on

page 2-40. If line voltage is not present onCN1, replace the power switch orcheck/correct missing line voltage.

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Low Voltage Power Supply (LVPS) Service Check

FRU Action

Low Voltage Power Supply Board(LVPS)

Set meter for ac line voltage.

Check for ac line voltage on CN1between pin 1, and pin 3.

If line voltage is present,disconnect the CN3 cable plugfrom the LVPS board.

If the voltage is not present, seethe Dead Machine ServiceCheck on page 2-43.

Use the LVPS connector table(page 5-1) and check for correctvoltages.

If voltage is not present or correct,replace the LVPS fuses and/or theLVPS board.

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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 housing with barehands as skin contains acids that can weaken the glass.

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

100 V ac 127 V ac for the low voltage model printer

200 V ac 240 V ac for the high voltage model printer

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

You can see the lamp with the left side cover and fuser wire coverremoved.

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FRU Action

Fuser LampLamp CableThermistorLVPS

Turn the printer off and disconnectthe fuser lamp cable plug from theLVPS board connector CN2.

Check for continuity across the fuserlamp pin 1 and pin 2.

If there is continuity, go to step 1:Continuity.

If there is no continuity, go to step 2:No Continuity.

Step 1: Continuity

Measure the voltage at connectorCN2 on the LVPS. It should matchthe line voltage.

If line voltage is not present, seeLow Voltage Power Supply(LVPS) Service Check onpage 2-44.

Make sure the fuser thermistor iscorrectly connected to the engineboard. If the problem persists,disconnect the thermistor cable from

the engine board and check forapproximately +5V dc. SeeConnector Locations onpage 5-1 for more information.

If the voltage is incorrect, seeEngine Board Service Checkon page 2-41.

Step 2: NoContinuity

Check the lamp cable for continuity.

If correct, replace the lamp. If incorrect, replace the lamp

cable.

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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 LampLamp CableThermistorLVPS

If the fuser lamp comes on and afuser failure LED error code displays,be sure the thermistor is contactingthe hot roll and the thermistor cableis firmly seated in connector CN1 on

the LVPS board.

Check for excessive toner buildup onthe surface of the thermistor. Cleanor replace as necessary. SeeConnector Locations onpage 5-1 for more information.

Turn the printer off and disconnectthe thermistor cable from the engine

board.

Measure the resistance of thethermistor. The resistance measuresapproximately 118K ohms when cool(approximately 40C). Replace thefuser assembly as necessary.

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Hot Fuser Service Check

Make sure the correct voltage lamp is installed. The voltage rating is stampedon one of the lamp contacts.

Main Motor Service Check

FRU Action

Fuser Thermistor Disconnect the thermistor cable fromthe engine board.

Measure the resistance across thethermistor cable. See ConnectorLocations on page 5-1for more

information.

Replace the fuser assembly if theresistance is lower than 1k ohm orshorted.

FRU Action

Engine BoardMain MotorMain Motor Cable

Check the engine board for thecorrect voltages. See ConnectorLocations on page 5-1for moreinformation.

If these voltages are correct,check the main motor cable for

continuity. If these voltages are not correct,see the Low Voltage PowerSupply (LVPS) Service Checkon page 2-44 or replace theengine board.

If continuity exists on each wire,replace the main motor.

If continuity does not exist on oneor more of the wires, replace the

motor cable.

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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 LED for proper operation.

FRU Action

Operator PanelOperator Panel Cable

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

operator panel cable for continuity.Replace if defective.

If the cable measures continuity,replace the operator panel.

Operator PanelOperator Panel CableController Board

If all LEDs are dim and operateerratically during POST or all LEDscome on and stay on solid duringPOST, replace the following FRUs

one at a time in the order shown:

Controller Board

Operator Panel

Operator Panel Cable

If none of the LEDs come on, makesure the cable is properly connectedto the operator panel and thecontroller board.

Disconnect the cable and check it forcontinuity. Replace if necessary.

If the cable measures continuity,check for +5V dc. SeeConnector Locations onpage 5-1for more information.

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

replace the operator panel.

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Operator Panel Button Service Check

FRU Action

Operator PanelOperator Panel Cable

Disconnect the operator panel fromthe operator panel cable.

Check the continuity between J21and J22 on the operator panel asyou press the operator panel button.As the button is pressed, continuityis present.

If continuity is present, replace theoperator panel cable.

If continuity is not present, replacethe operator panel.

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Paper Feed Service Checks

Paper Jam Error Indication During POST

Paper Picks During POST and/or Continuously

Paper Picks but Stops About an Inch Down the Page

FRU Action

Exit Sensor Flag 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 correctlyinstalled.

Input Paper Feed Sensor Make sure the input paperfeedsensor is working properly. A stuckor incorrectly installed sensorcauses this error.

FRU Action

Pick Roller ClutchSolenoid

Check the pick roller clutch for wear.The solenoid interacts with theclutch controlling motion of the pickroller.

If the cam surface of the pick rollerclutch assembly is worn, thesolenoid may not stop the pick rollerfrom rotating. Replace the pick rollerclutch assembly if necessary.

Make sure the spring on the solenoidis properly installed. If the spring isimproperly installed or missing, thepick roller will continuously pickpaper.

FRU Action

Roller Guides Check for correct position of rollerguides on pick roller assembly.

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Paper Picks but Stops Half Way Through the Printer

Paper Never Picks

FRU Action

Input Paper Feed SensorEngine Board

Make sure the input paper feedsensor is working properly.

Check for a broken or stuck flag onthe input paper feed sensor.

Check to make sure the cable isseated on the engine board. SeeConnector Locations on

page 5-1 for more information.

If correct, replace the input paperfeed sensor.

If these voltages are not correct,replace the engine board.

FRU Action

Paper Tray Make sure the paper tray is correctlyinstalled. The black mylar guidesheet in the front of the tray must bepositioned in the paper path justbehind the pick roller assembly. Thisguide sheet can easily block thepaper path if installed incorrectly.

Pick Roller Solenoid Make sure solenoid is installedcorrectly and its cable is plugged intothe engine board. See ConnectorLocations on page 5-1for moreinformation.

If the voltage is present, replacethe solenoid.

If the voltage is not present, seethe Engine Board ServiceCheck on page 2-41.

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Paper Occasionally Picks or Picks Multiple Sheets at Once

Paper Trees, Wrinkles, Stacks Poorly Or Curls

FRU Action

Pick Roller Assembly Check pick roller assembly for wear.Replace as necessary.

Paper Separator Assembly Check the friction pad on the paperseparator for signs of wear. Replaceas necessary.

Pick Roller Pad Assembly Check the friction pad on the pickroller pad assembly for signs of

wear. Replace as necessary.

FRU Action

Fuser Assembly This problem is most likely due to aworn transfer roller. A worn transfer

roller causes the printer to run hotterthan required for the media beingprinted. Excessive heat can causepaper treeing problems, poorstacking or curl.

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Parallel Port Service Check

1. Perform a print test to make sure the printer prints correctly. SeeReady on page 2-3 for more information.

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

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

4. Try enabling the parallel port pullup resistors. See ParallelMode 1 on page 3-27. Try printing a test page after enablingresistors. If the printer still does not print, disable the resistors.

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

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

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Print Quality Service Checks

Blank Page

FRU Action

Toner Cartridge Remove the toner cartridge andgently shake the assembly to evenlydistribute the toner.

PrintheadPrinthead CableHVPS

Engine/LVPS Board

Blank pages can be caused by adefective printhead assembly, highvoltage power supply or engine/

LVPS board.

See HVPS High Voltage PowerSupply Board on page 5-7 andcheck the voltage measurements.

If the voltages are correct, check theprinthead cable for continuity.

If the cable measures continuity,replace the printhead.

If the cable does not measurecontinuity, replace the cable.

If the voltage measurements are notcorrect, replace the HVPS.

If the problem still exists, replace theengine/LVPS board.

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Black Page

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

FRU Action

HVPS Contacts Check the contacts forcontamination and correctinstallation. Replace as necessary.

Engine/LVPS BoardController Board

HVPS CableHVPS

Make sure the HVPS to engine/LVPS cable is correctly installed.

See HVPS High Voltage PowerSupply Board on page 5-7 andcheck the voltage measurements.

If the voltages are correct, checkthe HVPS to engine/LVPS cablefor continuity.

If the cable does not measurecontinuity, replace the cable.

If the cable measures continuity,replace the HVPS.

If the voltages are not correct, seeLow Voltage Power Supply(LVPS) Service Check onpage 2-44and Engine BoardService Check on page 2-41.

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Heavy Background

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

end of life.

FRU Action

Toner Cartridge Make sure the toner cartridge iscorrectly installed and the highvoltage contacts are clean.

If the cartridge is installed correctly,try a new cartridge.

HVPS ContactsHVPS BoardEngine Board

Check the contacts for correctinstallation and contamination wherecontact is made with the tonercartridge and HVPS Board. Clean asnecessary.

If this does not correct the problem,

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

HVPS Board

Engine Board

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Partial Blank Image/White Spots (no periodic pattern)

Variation in Image Density Horizontally Across Page

FRU Action

Toner Cartridge Remove the toner cartridge andgently shake the assembly to evenlydistribute the toner.

If toner cartridge is low, try a newone.

Fuser Backup Roller Springs Check left and right backup rollersprings and backup roller to ensure

adequate even pressure is applied tothe fuser hot roll.

Paper Make sure recommended paper isbeing used.

FRU Action

Toner Cartridge The charge roll in the toner cartridgemay have an unbalanced pressureagainst the PC drum.

Try a new toner cartridge.

Transfer Roller Bearing AssemblyTransfer Roller

Check the springs in the left andright transfer roller bearings. The

bearing assemblies should supportthe transfer roller, applying evenpressure to the PC drum.

Replace either or both transfer rollerbearing assemblies if the springsshow signs of damage or fatigue.

Inspect the transfer roller for signs ofwear or damage and replace as

necessary.

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Poor Fusing of Image

Light Print

FRU Action

Fuser Lamp The fuser may not be operating atthe proper temperature to fuse thetoner to the paper. SeeCold FuserService Check on page 2-47.

Paper Make sure recommended paper isbeing used.

FRU Action

Toner Cartridge Make sure the toner cartridge isinstalled correctly and is not low ontoner.

If the problem continues, install a

new toner cartridge.

Transfer RollerHVPS Contact (Transfer Roller)HVPS Board

Check the transfer roller for signs oftoner buildup and contamination.

Inspect the HVPS contact (transferroller) for contamination.

Inspect the HVPS board forcontamination where it meets the

HVPS contacts.

If all components appear free ofcontamination, replace the followingFRUs one at a time in the ordershown:

Transfer Roller

HVPS Contact (Transfer Roller)

HVPS Board

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White or Black Lines or Bands

Toner on Back of Page

FRU Action

Toner CartridgePaper Feed Drive Gears

Banding appears as light or darkhorizontal lines on a uniformly graypage or on a page with a large areaof graphics. Banding is primarily dueto a variation in the speed of thepaper as it feeds through the printerespecially in the developer andtransfer process. Inspect the tonercartridge and paper feed

components, especially the drivegears, for signs of wear, debris,binds, or damage.

FRU Action

Print Cartridge Inspect the overall paper path forsigns of spilled toner.

Gently clean the contaminated areaswith a soft cloth or compressed air.

Fuser Hot RollBackup Roller

The fuser hot roll can cause toner onthe back of the paper if toner isbuilding up on the hot roll. Thisbuildup may transfer to the backup

roller, later transferring to the back ofthe paper.

Inspect the hot roll and backup rollerfor signs of contamination andreplace as necessary.

Transfer Roller A transfer roller contaminated withtoner can cause toner to transfer tothe back of printed pages.

Inspect the transfer roller forcontamination and replace asnecessary.

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Incorrect Characters Print

Make sure the correct printer driver software is installed. Incorrectsoftware can cause incorrect characters to print and the image may

not fit the page.

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Solving Print Quality Problems

Problem Action

Light or blurred characters. The print cartridge may be gettinglow on toner:

Remove the print cartridge. Shake it from side to side to

redistribute the toner. Reinstall it. Run engine clean cycle to remove

any toner that may have

accumulated. See ExecuteEngine Clean Cycle onpage 3-13for more information.

Make sure you are usingrecommended print media (seemedia types and sizes in theUsers Guide.)

Use MarkVision to define thecustom type setting for mediatype, media texture, or media

weight. The print cartridge may be

defective. Replace it.

Toner smudges appear on thefront or back of the page.

Run engine clean cycle to removeany toner that may haveaccumulated. See ExecuteEngine Clean Cycle onpage 3-13for more information.

Make sure the paper is straightand unwrinkled.

Replace the print cartridge.

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Vertical or horizontal streaks

appear on the page.

Run engine clean cycle to remove

any toner that may haveaccumulated. See ExecuteEngine Clean Cycle onpage 3-13for more information.


Toner smears or rubs off thepage.

Run engine clean cycle to removeany toner that may haveaccumulated. See ExecuteEngine Clean Cycle onpage 3-13for more information.

Try a different kind of paper. Paperdesigned for copiers gives the

best quality. If you are printing on special

media, such as, card stock orlabels, be sure you select thecorrect paper type in the printerdriver.

Change the media texture setting.If the setting is not in your driver,you can download the LexmarkE320/E322 setup utility from the

Lexmark Web site,www.lexmark.com.

Problem Action

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The print is getting light but the

Toner Low LED is not on.

The Toner Low LED does not

come on if the standard 1,500page print cartridge is installed. Remove the print cartridge and

gently shake it from side to side toredistribute the toner.


The Toner Low LED is on. Remove the print cartridge andgently shake it from side to side toredistribute the toner.


Solid black areas ontransparencies or paper containswhite streaks.

Choose a different fill pattern inyour software application.

Try a different type of paper. Paperdesigned for copiers gives thebest quality.

Remove the print cartridge andgently shake it from side to side toredistribute the toner.


Problem Action

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Faint images or repetitive spots

appear on the page.

Select a different media type or

form type setting from your printerdriver. Try a different type of paper. Paper

designed for copiers gives thebest quality.


Pages are blank. The print cartridge may be out oftoner or defective. Replace thecartridge.

You may have a software error. Tryturning the printer off and back on.

The printer has missing ordamaged parts.

Contact the place where you boughtyour printer.

The operator panel LEDs do notcome on when the printer isturned on.

The LEDs may take a fewseconds to come on.

Make sure the power cord is firmlyplugged in at the back of theprinter and at the electrical outlet.

The top cover does not close. Make sure the print cartridge is

positioned correctly.

Problem Action

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The printer is on, but nothing

prints.

Make sure the print cartridge is

installed properly. Make sure the parallel or USBcable is firmly plugged into theconnector on the back of theprinter.

Press the operator panel buttonwith a brief button press to print atest page to determine whetherthe problem is with the printer orthe computer.

If you can print a testpage, the problem is inthe computer or the

software application.

If you cannot print a testpage, call for service.

Toner Low LED is on and printingstops.

If you are using a 3K or 6K printcartridge and the Toner Low alarmis set to on, the printer stops printinguntil you replace the print cartridge.

Download the LexmarkE320/E322 Setup Utility

from the Lexmark Web

site, www.lexmark.com

to change the Toner

Low alarm.

The media skews or buckles. Dont overfill Tray 1 or the optionalTray 2 (see media capacities inthe media types and sizes table inthe Users Guide).

Make sure the paper guides areflush against the edges of themedia.

The paper sticks together/printerfeeds multiple sheets of paper.

Remove the paper from Tray 1 orthe optional Tray 2 and fan the

paper. Dont overfill Tray 1 or the optional

Tray 2 (see media capacities inthe media types and sizes chart inthe Users Guide).

Problem Action

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The paper fails to feed from

Tray 1.

Remove the paper from Tray 1

and fan the paper. Make sure Tray 1 is selected fromthe printer driver.

Do not overfill the tray.

The paper fails to feed from theoptional Tray 2.

Make sure the optional Tray 2 isselected from the printer driver.

Make sure the tray is pushed allthe way in.

Make sure the metal plate is

pressed down before inserting itinto the printer.

Note: Once the tray is inserted,the metal plate springs up so the

paper can feed into the printer.

Make sure the paper does notexceed the stack height indicator.

Make sure the paper is under bothcorner bucklers (see loadingpaper in the Users Guide).

Remove the paper from the

optional Tray 2 and fan the paper.

Problem Action

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The Load Paper LED is on even

though there is paper loaded inthe optional Tray 2.

Make sure the tray is pushed all the

way in.

The printer does not print after apaper jam has been cleared.

Push the operator panel button oropen and close the printer coverto restart the printer.

Make sure the print cartridge isinstalled properly.

Unexpected characters print orcharacters are missing.

Make sure you are using thecorrect printer driver.

Select hex trace mode todetermine what the problem is.

Restore factory defaults. Make sure the parallel cable or

USB cable is firmly plugged in at

the back of the printer.

Jobs are not printing and theError LED is on solid.

Make sure the print cartridge isinstalled properly.

Make sure the printer top cover isclosed.

While in PostScript Level 2emulation, the printer is flushingdata (Ready/Data and Error

LEDs are blinking).

Make sure you are using thecorrect PostScript driver.

The Lexmark E320 does not

support PostScript emulation. The printer doesnt have enough

memory to print the job. Installmore memory.

Problem Action

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You want to use manual duplex

but cannot find it on your printer.

Your printer driver may not support

manual duplex. Go to the LexmarkWeb site, www.lexmark.com todownload the latest printer driver.

While using manual duplex, theprinter gets a paper jam.

A paper jam interrupts the duplexprocess. As a result, the informationon the page that jammed is lost.

Cancel your print job and pressthe operator panel with a long

button press (approximately 3seconds) to reset the printer. Resend your print job.

Problem Action

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Resetting User Defaults

When formatting problems occur or unexpected characters print, tryresetting the printer default settings to your user defaults. Press andhold the operator panel button until all the LEDs come on.

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Using the Special Function Menu

Printer settings for solving print quality problems are in the specialfunction menu: restore factory defaults, Hex Trace, print quality testpages, and advanced troubleshooting mode.

To enter the special function menu:

1. Turn off the printer.

2. Open the top cover.

3. Turn the printer back on.

4. When the Error LED comes on, indicating the top cover is open,press and release the operator panel button twice quickly(double-button press).

5. When the Error LED and Press Button LED blink, close thecover.

The special function menu is activated.

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Restoring Factory Defaults

Sometimes resetting the printer to the original factory defaultsettings solves formatting problems.

1. Enter the special function menu. See Using the SpecialFunction Menu on page 2-71 for more information.

2. Press and release the operator panel button twice quickly(double-button press) until the Toner Low LED comes on andthe two bottom LEDs blink.

3. Press the operator panel with a long button press (hold until allthe LEDs come on) to reset the printer to the original factorydefaults.

Once the settings are returned to the factory default values, theprinter returns to the Ready state.

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Using Hex Trace Mode

When unexpected characters print or characters are missing, useHex Trace to help you determine if there is a problem with thelanguage interpreter or the cable. Hex Trace isolates printingproblems by telling you what information your printer is receiving.

1. Enter the special function menu. See Using the SpecialFunction Menu on page 2-71 for more information.

2. Press and release the

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