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OptraTM E310
4044-00X
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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.
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First Edition (March 1999) The following paragraph does not apply to any country where such provisions are inconsistent with local law: LEXMARK INTERNATIONAL, INC. PROVIDES THIS PUBLICATION "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Some states do not allow disclaimer of express or implied warranties in certain transactions; therefore, this statement may not apply to you. This publication could include technical inaccuracies or typographical errors. Changes are periodically made to the information herein; these changes will be incorporated in later editions. Improvements or changes in the products or the programs described may be made at any time. A form for reader's comments is provided at the back of this publication. If the form has been removed, comments may be addressed to Lexmark International, Inc., Department D22/035-3, 740 New Circle Road N.W., Lexington, Kentucky 40550, U.S.A. Lexmark may use or distribute any of the information you supply in any way it believes appropriate without incurring any obligation to you. You can purchase additional copies of publications related to this product by calling 1-800-553-9727. In other countries, contact your point of purchase. Lexmark and Optra are trademarks of Lexmark International, Inc., registered in the United States and/or other countries. Color Jetprinter is a trademark of Lexmark International, Inc. Other trademarks are the property of their respective owners. © Copyright Lexmark International, Inc. 1999. All rights reserved. UNITED STATES GOVERNMENT RESTRICTED RIGHTS This software and documentation are provided with RESTRICTED RIGHTS. Use, duplication or disclosure by the Government is subject to restrictions as set forth in subparagraph (c)(1)(ii) of the Rights in Technical Data and Computer Software clause at DFARS 252.227-7013 and in applicable FAR provisions: Lexmark International, Inc., Lexington, KY 40550.
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Table of Contents
Notices and Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v Laser Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Diagnostic Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Service Error Codes. . . . . . . . . . . . . . . . . User Error Message Table . . . . . . . . . . . . Power-On Self Test (POST). . . . . . . . . . . Symptom Tables . . . . . . . . . . . . . . . . . . . Service Checks . . . . . . . . . . . . . . . . . . . . . . Cooling Fan Service Check . . . . . . . . . . . Cover Open Switch Service Check . . . . . Dead Machine Service Check . . . . . . . . . Fuser Service Check . . . . . . . . . . . . . . . . Main Motor Service Check . . . . . . . . . . . . Operator Panel Service Check. . . . . . . . . Operator Panel Button Service Check . . . Paper Feed Service Check . . . . . . . . . . . Print Quality Service Check . . . . . . . . . . . Parallel Port Service Check . . . . . . . . . . . ....... ....... ....... ....... ....... ....... ....... ....... ....... ....... ....... ....... ....... ....... ....... ....... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... . . . . . 2-1 . . . . . 2-2 . . . . . 2-6 . . . . . 2-9 . . . . 2-10 . . . . 2-12 . . . . 2-12 . . . . 2-12 . . . . 2-13 . . . . 2-15 . . . . 2-18 . . . . 2-19 . . . . 2-20 . . . . 2-20 . . . . 2-23 . . . . 2-30
Diagnostic Aids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 Memory Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 Diagnostic Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 Print Quality Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 User Mode Print Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3 Configuration Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3 Hex Trace. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11 Restoring Factory Defaults. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12 Engine Clean Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13 Toggle Demo/Normal Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14 Printer Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14 Paper Path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15 Repair Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 Handling ESD-Sensitive Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
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4044-001 Removal Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2 Screw Identification Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2 Covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2 Frame Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-7 Fuser Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-8 HVPS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-10 Interconnect Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-12 Engine/LVPS Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-13 Main Drive Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-15 Pick Roll Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-16 Printhead Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-18 Transfer Roll . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-19 Connector Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1 Controller Board . . . . . . . . . . . . . . . Engine/LVPS Board . . . . . . . . . . . . High Voltage Power Supply. . . . . . . Interconnect Board . . . . . . . . . . . . . Assembly Assembly Assembly Assembly Assembly Assembly Assembly Assembly ...... ...... ...... ...... ....... ....... ....... ....... ...... ...... ...... ...... . . . .5-1 . . . .5-4 . . . .5-9 . . .5-12
Parts Catalog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1 1: Covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-2 2: Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-6 3: Fuser. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-10 4: Main Drive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-12 5: Paper Feed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-14 6: Electronics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-18 7: Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-20 8: Miscellaneous . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-21
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-1
iv Service Manual
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Notices and Safety Information
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, and elsewhere is certified as a Class I laser product conforming to the requirements of IEC 825. Class I laser products are not considered to be hazardous. The printer contains internally a Class IIIb (3b) laser that is nominally a 5 milliwatt gallium arsenide laser operating in the wavelength region of 770-795 nanometers. The laser system and printer are designed so there is never any human access to laser radiation above a Class I level during normal operation, user maintenance, or prescribed service condition.
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Laser Advisory Label
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Class 1 Laser Statement Label
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Laser
Der Drucker erfüllt gemäß amtlicher Bestätigung der USA die Anforderungen der Bestimmung DHHS (Department of Health and Human Services) 21 CFR Teil J für Laserprodukte der Klasse I (1). In anderen Ländern gilt der Drucker als Laserprodukt der Klasse I, der die Anforderungen der IEC (International Electrotechnical Commission) 825 gemäß amtlicher Bestätigung erfüllt. Laserprodukte der Klasse I gelten als unschädlich. Im Inneren des Druckers befindet sich ein Laser der Klasse IIIb (3b), bei dem es sich um einen Galliumarsenlaser mit 5 Milliwatt handelt, der Wellen der Länge 770-795 Nanometer ausstrahlt. Das Lasersystem und der Drucker sind so konzipiert, daß im Normalbetrieb, bei der Wartung durch den Benutzer oder bei ordnungsgemäßer Wartung durch den Kundendienst Laserbestrahlung, die die Klasse I übersteigen würde, Menschen keinesfalls erreicht.
Avis relatif à l'utilisation de laser
Pour les Etats-Unis : cette imprimante est certifiée conforme aux provisions DHHS 21 CFR alinéa J concernant les produits laser de Classe I (1). Pour les autres pays : cette imprimante répond aux normes IEC 825 relatives aux produits laser de Classe I. Les produits laser de Classe I sont considérés comme des produits non dangereux. Cette imprimante est équipée d'un laser de Classe IIIb (3b) (arséniure de gallium d'une puissance nominale de 5 milliwatts) émettant sur des longueurs d'onde comprises entre 770 et 795 nanomètres. L'imprimante et son système laser sont conçus pour impossible, dans des conditions normales d'utilisation, d'entretien par l'utilisateur ou de révision, l'exposition à des rayonnements laser supérieurs à des rayonnements de Classe I .
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Avvertenze sui prodotti laser
Questa stampante è certificata negli Stati Uniti per essere conforme ai requisiti del DHHS 21 CFR Sottocapitolo J per i prodotti laser di classe 1 ed è certificata negli altri Paesi come prodotto laser di classe 1 conforme ai requisiti della norma CEI 825. I prodotti laser di classe non sono considerati pericolosi. La stampante contiene al suo interno un laser di classe IIIb (3b) all'arseniuro di gallio della potenza di 5mW che opera sulla lunghezza d'onda compresa tra 770 e 795 nanometri. Il sistema laser e la stampante sono stati progettati in modo tale che le persone a contatto con la stampante, durante il normale funzionamento, le operazioni di servizio o quelle di assistenza tecnica, non ricevano radiazioni laser superiori al livello della classe 1..
Avisos sobre el láser
Se certifica que, en los EE.UU., esta impresora cumple los requisitos para los productos láser de Clase I (1) establecidos en el subcapítulo J de la norma CFR 21 del DHHS (Departamento de Sanidad y Servicios) y, en los demás países, reúne todas las condiciones expuestas en la norma IEC 825 para productos láser de Clase I (1). Los productos láser de Clase I no se consideran peligrosos. La impresora contiene en su interior un láser de Clase IIIb (3b) de arseniuro de galio de funcionamiento nominal a 5 milivatios en una longitud de onda de 770 a 795 nanómetros. El sistema láser y la impresora están diseñados de forma que ninguna persona pueda verse afectada por ningún tipo de radiación láser superior al nivel de la Clase I durante su uso normal, el mantenimiento realizado por el usuario o cualquier otra situación de servicio técnico.
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Declaração sobre Laser
A impressora está certificada nos E.U.A. em conformidade com os requisitos da regulamentação DHHS 21 CFR Subcapítulo J para a Classe I (1) de produtos laser. Em outros locais, está certificada como um produto laser da Classe I, em conformidade com os requisitos da norma IEC 825. Os produtos laser da Classe I não são considerados perigosos. Internamente, a impressora contém um produto laser da Classe IIIb (3b), designado laser de arseneto de potássio, de 5 milliwatts ,operando numa faixa de comprimento de onda entre 770 e 795 nanómetros. O sistema e a impressora laser foram concebidos de forma a nunca existir qualquer possiblidade de acesso humano a radiação laser superior a um nível de Classe I durante a operação normal, a manutenção feita pelo utilizador ou condições de assistência prescritas.
Laserinformatie
De printer voldoet aan de eisen die gesteld worden aan een laserprodukt van klasse I. Voor de Verenigde Staten zijn deze eisen vastgelegd in DHHS 21 CFR Subchapter J, voor andere landen in IEC 825. Laserprodukten van klasse I worden niet als ongevaarlijk aangemerkt. De printer is voorzien van een laser van klasse IIIb (3b), dat wil zeggen een gallium arsenide-laser van 5 milliwatt met een golflengte van 770-795 nanometer. Het lasergedeelte en de printer zijn zo ontworpen dat bij normaal gebruik, bij onderhoud of reparatie conform de voorschriften, nooit blootstelling mogelijk is aan laserstraling boven een niveau zoals voorgeschreven is voor klasse 1.
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Lasermeddelelse
Printeren er godkendt som et Klasse I-laserprodukt, i overenstemmelse med kravene i IEC 825. Klasse I-laserprodukter betragtes ikke som farlige. Printeren indeholder internt en Klasse IIIB (3b)-laser, der nominelt er en 5 milliwatt galliumarsenid laser, som arbejder på bølgelængdeområdet 770-795 nanometer. Lasersystemet og printeren er udformet således, at mennesker aldrig udsættes for en laserstråling over Klasse I-niveau ved normal drift, brugervedligeholdelse eller obligatoriske servicebetingelser.
Huomautus laserlaitteesta
Tämä kirjoitin on Yhdysvalloissa luokan I (1) laserlaitteiden DHHS 21 CFR Subchapter J -määrityksen mukainen ja muualla luokan I laserlaitteiden IEC 825 -määrityksen mukainen. Luokan I laserlaitteiden ei katsota olevan vaarallisia käyttäjälle. Kirjoittimessa on sisäinen luokan IIIb (3b) 5 milliwatin galliumarsenidilaser, joka toimii aaltoalueella 770 - 795 nanometriä. Laserjärjestelmä ja kirjoitin on suunniteltu siten, että käyttäjä ei altistu luokan I määrityksiä voimakkaammalle säteilylle kirjoittimen normaalin toiminnan, käyttäjän tekemien huoltotoimien tai muiden huoltotoimien yhteydessä.
VARO! Avattaessa ja suojalukitus ohitettaessa olet alttiina näkymättömälle lasersäteilylle. Älä katso säteeseen. VARNING! Osynlig laserstrålning när denna del är öppnad och spärren är urkopplad. Betrakta ej strålen.
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Laser-notis
Denna skrivare är i USA certifierad att motsvara kraven i DHHS 21 CFR, underparagraf J för laserprodukter av Klass I (1). I andra länder uppfyller skrivaren kraven för laserprodukter av Klass I enligt kraven i IEC 825. Laserprodukter i Klass I anses ej hälsovådliga. Skrivaren har en inbyggd laser av Klass IIIb (3b) som består av en laserenhet av gallium-arsenid på 5 milliwatt som arbetar i våglängdsområdet 770795 nanometer. Lasersystemet och skrivaren är utformade så att det aldrig finns risk för att någon person utsätts för laserstrålning över Klass I-nivå vid normal användning, underhåll som utförs av användaren eller annan föreskriven serviceåtgärd.
Laser-melding
Skriveren er godkjent i USA etter kravene i DHHS 21 CFR, underkapittel J, for klasse I (1) laserprodukter, og er i andre land godkjent som et Klasse I-laserprodukt i samsvar med kravene i IEC 825. Klasse I-laserprodukter er ikke å betrakte som farlige. Skriveren inneholder internt en klasse IIIb (3b)-laser, som består av en gallium-arsenlaserenhet som avgir stråling i bølgelengdeområdet 770-795 nanometer. Lasersystemet og skriveren er utformet slik at personer aldri utsettes for laserstråling ut over klasse I-nivå under vanlig bruk, vedlikehold som utføres av brukeren, eller foreskrevne serviceoperasjoner.
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Avís sobre el Làser
Segons ha estat certificat als Estats Units, aquesta impressora compleix els requisits de DHHS 21 CFR, apartat J, pels productes làser de classe I (1), i segons ha estat certificat en altres llocs, és un producte làser de classe I que compleix els requisits d'IEC 825. Els productes làser de classe I no es consideren perillosos. Aquesta impressora conté un làser de classe IIIb (3b) d'arseniür de gal.li, nominalment de 5 mil.liwats, i funciona a la regió de longitud d'ona de 770-795 nanòmetres. El sistema làser i la impressora han sigut concebuts de manera que mai hi hagi exposició a la radiació làser per sobre d'un nivell de classe I durant una operació normal, durant les tasques de manteniment d'usuari ni durant els serveis que satisfacin les condicions prescrites.
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Japanese Laser Notice
Chinese Laser Notice
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Korean Laser Notice
Safety Information
· This product is designed, tested and approved to meet strict
global safety standards with the use of specific Lexmark components. The safety features of some parts may not always be obvious. Lexmark is not responsible for the use of other replacement parts.
· The maintenance information for this product has been
prepared for use by a professional service person and is not intended to be used by others.
· There may be an increased risk of electric shock and
personal injury during disassembly and servicing of this product. Professional service personnel should understand this and take necessary precautions.
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Consignes de Sécurité
· Ce produit a été conçu, testé et approuvé pour respecter les
normes strictes de sécurité globale lors de l'utilisation de composants Lexmark spécifiques. Les caractéristiques de sécurité de certains éléments ne sont pas toujours évidentes. Lexmark ne peut être tenu responsable de l'utilisation d'autres pièces de rechange.
· Les consignes d'entretien et de réparation de ce produit
s'adressent uniquement à un personnel de maintenance qualifié.
· Le démontage et l'entretien de ce produit pouvant présenter
certains risques électriques, le personnel d'entretien qualifié devra prendre toutes les précautions nécessaires.
Norme di sicurezza
· Il prodotto è stato progettato, testato e approvato in
conformità a severi standard di sicurezza e per l'utilizzo con componenti Lexmark specifici. Le caratteristiche di sicurezza di alcune parti non sempre sono di immediata comprensione. Lexmark non è responsabile per l'utilizzo di parti di ricambio di altri produttori.
· Le informazioni riguardanti la manutenzione di questo
prodotto sono indirizzate soltanto al personale di assistenza autorizzato.
· Durante lo smontaggio e la manutenzione di questo prodotto,
il rischio di subire scosse elettriche e danni alla persona è più elevato. Il personale di assistenza autorizzato, deve, quindi, adottare le precauzioni necessarie.
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Sicherheitshinweise
· Dieses Produkt und die zugehörigen Komponenten wurden
entworfen und getestet, um beim Einsatz die weltweit gültigen Sicherheitsanforderungen zu erfüllen. Die sicherheitsrelevanten Funktionen der Bauteile und Optionen sind nicht immer offensichtlich. Sofern Teile eingesetzt werden, die nicht von Lexmark sind, wird von Lexmark keinerlei Verantwortung oder Haftung für dieses Produkt übernommen.
· Die Wartungsinformationen für dieses Produkt sind
ausschließlich für die Verwendung durch einen Wartungsfachmann bestimmt.
· Während des Auseinandernehmens und der Wartung des
Geräts besteht ein zusätzliches Risiko eines elektrischen Schlags und körperlicher Verletzung. Das zuständige Fachpersonal sollte entsprechende Vorsichtsmaßnahmen treffen.
Pautas de Seguridad
· Este producto se ha diseñado, verificado y aprobado para
cumplir los más estrictos estándares de seguridad global usando los componentes específicos de Lexmark. Puede que las características de seguridad de algunas piezas no sean siempre evidentes. Lexmark no se hace responsable del uso de otras piezas de recambio.
· La información sobre el mantenimiento de este producto
está dirigida exclusivamente al personal cualificado de mantenimiento.
· Existe mayor riesgo de descarga eléctrica y de daños
personales durante el desmontaje y la reparación de la máquina. El personal cualificado debe ser consciente de este peligro y tomar las precauciones necesarias.
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Informações de Segurança
· Este produto foi concebido, testado e aprovado para
satisfazer os padrões globais de segurança na utilização de componentes específicos da Lexmark. As funções de segurança de alguns dos componentes podem não ser sempre óbvias. A Lexmark não é responsável pela utilização de outros componentes de substituição.
· As informações de segurança relativas a este produto
destinam-se a profissionais destes serviços e não devem ser utilizadas por outras pessoas.
· Risco de choques eléctricos e ferimentos graves durante a
desmontagem e manutenção deste produto. Os profissionais destes serviços devem estar avisados deste facto e tomar os cuidados necessários.
Informació de Seguretat
· Aquest producte està dissenyat, comprovat i aprovat per tal
d'acomplir les estrictes normes de seguretat globals amb la utililització de components específics de Lexmark. Les característiques de seguretat d'algunes peces pot ser que no sempre siguin òbvies. Lexmark no es responsabilitza de l'us d'altres peces de recanvi.
· La informació pel manteniment d'aquest producte està
orientada exclusivament a professionals i no està destinada a ningú que no ho sigui.
· El risc de xoc elèctric i de danys personals pot augmentar
durant el procés de desmuntatge i de servei d'aquest producte. El personal professional ha d'estar-ne assabentat i prendre les mesures convenients.
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Chinese Safety Information
Korean Safety Information
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1. General Information
This printer is a letter-quality laser page printer designed to attach to an IBM Personal Computer or other computers compatible with the IBM Personal Computer (with 386 processor or higher) and Macintosh Computers via the USB connection. The printer is capable of printing at speeds of 8 pages per minute with a true 600 dpi resolution or 1200 dpi Image Quality resolution. The base printer comes with 2MB of memory and is expandable to 66MB via the single DRAM SIMM slot. User flash memory is also available in 1MB, 2MB and 4MB.
Options
The following options are available. Some options are not available in every country. Contact your point of purchase for options available in your country. Memory options of 8MB, 16MB, 32MB and 64MB Flash memory options of 1MB, 2MB and 4MB
General Information 1-1
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Acronyms
CSU DRAM EP EPROM ESD FRU HVPS LASER LCD LED LVPS MROM NVRAM OEM PC POST ROM SIMM SRAM UPR USB V ac V dc Customer Setup Dynamic Random Access Memory Electrophotographic Process Erasable, Programmable Read-Only Memory Electrostatic Discharge Field Replaceable Unit High Voltage Power Supply Light Amplification by Stimulated Emission of Radiation Liquid Crystal Display Light-Emitting Diode Low Voltage Power Supply Masked Read Only Memory Nonvolatile Random Access Memory Original Equipment Manufacturer Photoconductor Power-On Self Test Read Only Memory Single In-Line Memory Module Static Random Access Memory Used Parts Return Universal Serial Bus Volts alternating current Volts direct current
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2. Diagnostic Information
Start
CAUTION: NEVER manually actuate or disable the top cover interlock switch and the printhead shutter actuator at the same time. To perform some of the service checks and tests, such as troubleshooting paper feed problems, you need to actuate the top cover interlock switch with the covers opened or removed and power applied to the machine. It is important for personal safety that you DO NOT, FOR ANY REASON, disable the printhead shutter actuator when power is on. Remove power from the printer before you connect or disconnect any cable or electronic board or assembly for personal safety and to prevent 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 lights on the operator panel can indicate either a user error message or service error message. When a service error occurs, the printer stops printing and all operator panel LEDs blink in a continuous pattern, indicating a service error, until the printer is powered off. If all operator panel LEDs are blinking, go to the "Service Error Codes" on page 2-2. When a user error message occurs, one or two operator panel LEDs are on solid or blinking. Go to the "User Error Message Table" on page 2-6. If your machine does not have a service error code and does not complete POST, go to the "POST Symptom Table" on page 2-10. If your machine completes POST without an error, and you have a symptom, go to the "Base Printer Symptom Table" on page 2-10. Locate your symptom and take the appropriate action. If a service error code appears while you are working on the machine, go to the "Service Error Codes" on page 2-2 and take the indicated action for that error.
Diagnostic Information 2-1
4044-001
Service Error Codes
Primary Service Error Codes When a service error occurs the printer stops printing and all operator panel LEDs blink in a continuous pattern, indicating a service error, until the printer is powered off. Press and release the operator panel button to display the service error code. Locate the blinking LEDs in the following table and take the indicated action.
Blinking Operator Panel LED Software Service Error Code Action Run the Printer Diagnostic Test to diagnose between the ROM SIMM and the controller board. If no other error code displays after the test completes, replace the controller board.
Fuser Failure Error
Press and release the operator panel button to view the secondary service error code. Go to "Secondary Service Error Codes" on page 2-5.
Laser Diode Failure
Inspect the printhead cable and replace as necessary. Replace the printhead assembly. If this does not correct the problem, replace the engine/LVPS board.
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4044-001
Blinking Operator Panel LED Mirror Motor Failure Action Inspect the printhead cable and replace as necessary. Replace the printhead assembly. If this does not correct the problem, replace the engine/LVPS board.
Optional Memory Error
Replace the optional memory SIMM. If this does not correct the problem, replace the controller board.
ROM Checksum Error
Replace the ROM SIMM. If this does not correct the problem, replace the controller board.
Base Memory Error
Replace the controller board
NVRAM Failure Error
Replace the controller board
Diagnostic Information 2-3
4044-001
Blinking Operator Panel LED ASIC Register Failure Error Action Replace the controller board
ASIC SRAM Failure Error
Replace the controller board
Flash Memory Failure Error
Replace the ROM SIMM w/Flash. If this does not correct the problem, replace the controller board.
Font Checksum Failure Error
Replace the ROM SIMM. If this does not correct the problem, replace the controller board.
Engine/LVPS Board Communications Failure Error
Replace the engine/LVPS board
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4044-001 Secondary Service Error Codes For some service error codes, a second service error code is used to further describe the error. When a service error occurs, pressing the operator panel button after viewing the primary service error code displays the secondary service error code. The following table contains the secondary service error codes.
Blinking Operator Panel LED Fuser Failure - Over Temperature
Action Go to the "Hot Fuser Service Check" on page 2-18.
Fuser Failure - Under Temperature
Go to the "Cold Fuser Service Check" on page 2-15.
Fuser Failure - Thermistor Open
Go to the "Fuser Service Check" on page 2-15.
Diagnostic Information 2-5
4044-001
User Error Message Table
Primary User Error Message Table When a user error message occurs the printer stops printing and one or two operator panel LEDs are on solid or blinking until the printer is powered off. Locate the printer's LED Status in the following table and take the indicated action.
User Error Message Paper Jam LED Status Paper Jam on solid Action Open cover and clear any paper jams. Close the top cover. If the error message is still present, go to the"Paper Feed Service Check" on page 2-20. Load media into the manual slot and push the operator panel button to resume printing one sheet or do an operator panel reset by pressing and holding the operator panel button for more than three seconds. Load media in the appropriate paper tray and push the operator panel button to resume printing or do an operator panel reset by pressing and holding the operator panel button for more than three seconds. Close the top cover. If the error LED remains on solid and POST does not continue, go to the "Cover Open Switch Service Check" on page 2-12.
Load Manual Paper/ Envelope
Load Paper blinks and Press Button on solid
Load Paper/Load Envelope
Load Paper on solid and Press Button on solid
Top Cover Open
Error on solid
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4044-001
User Error Message Memory Full/Complex Page/Resolution Reduction Warning/ Font Error/ Resource Save Off Deficient Memory LED Status Error on solid and Press Button on solid Action The printer memory is full or the page is too complex to print. The printer is forced to reduce the resolution of a formatted page to 300 dpi before printing, or the printer is unable to maintain the required data transfer rate. Go to the "Secondary User Error Message Table" on page 2-8. This condition only occurs when the Flash memory is full.
Flash Memory Full
Error blinks and Press Button on solid
Diagnostic Information 2-7
4044-001 Secondary User Error Message Table Press and release the operator panel button two times to display the user secondary error LED status. Each press and release action must be performed within a half second. Locate the printer's LED status in the following table and take the indicated action.
User Error Message Complex Page LED Status Ready, Error, and Press Button on solid Action Switch the printing mode to a different printing mode using the Lexmark driver for Windows, or push the operator panel button to resume printing, or do an operator panel reset by pressing and holding the operator panel button for more than three seconds. Change the printing mode to Quick Print Plus or reduce the complexity of the job or the resolution, or push the operator panel button to resume printing, or do an operator panel reset by pressing and holding the operator panel button for more than three seconds. Switch from the GL/2 or raster mode to Quick Print Plus mode using the Lexmark driver for Windows, or press the operator panel button to resume printing, or do an operator panel reset by pressing and holding the operator button for more than three seconds.
Memory Full
Ready, Data, Error, and Press Button on solid
Resolution Reduction
Ready, Data blinking and the Error, Press Button on solid
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4044-001
User Error Message Font Error LED Status Data blinking and Error, Press Button on solid Action The print command is requesting a font that is not present or installed. The user must select a different font or try turning the Best Fit setting on and retry the print command. The printer lacks sufficient memory to enable Resource Save. It is recommended that the user install additional memory or set each link buffer to the Auto value.
Resource Save Off Deficient Memory
Ready blinking and Error, Press Button on solid
Power-On Self Test (POST)
When you turn the printer On, it performs a Power-On Self Test. Check for correct POST functioning of the base printer by observing the following: 1. All LEDs turn on solid. 2. All LEDs turn off. 3. The cooling fan and fuser lamp turn on. Note: The fuser lamp turns off once the thermistor reaches operating temperature. As the temperature drops, the lamp turns back on automatically. 4. The LEDs begin to turn on then off sequentially. 5. Once the fuser has reached operating temperature, the main motor turns on and the pick roller shaft assembly rotates to home position. 6. The Ready LED turns on solid while the Data LED blinks. 7. The engine/LVPS board checks the status of the input and exit paper feed sensors. 8. The main motor turns off. 9. The Data LED turns off.
Diagnostic Information 2-9
4044-001
Symptom Tables
POST Symptom Table
Symptom The main motor, cooling fan and fuser do not come on. POST completes except one or more LEDs do not come on. None of the LEDs come on. Main motor does not come on. Fan does not come on. Fuser lamp does not come on. Fuser lamp never turns off. The paper feed picks and tries to feed paper. Action Go to "Cover Open Switch Service Check" on page 2-12. Go to the"Operator Panel Service Check" on page 2-19. Go to the "Operator Panel Service Check" on page 2-19. Go to the "Main Motor Service Check" on page 2-18. Go to the "Cooling Fan Service Check" on page 2-12. Go to the "Cold Fuser Service Check" on page 2-15. Go to the "Hot Fuser Service Check" on page 2-18. Go to the "Paper Feed Service Check" on page 2-20.
Base Printer Symptom Table
Symptom Dead Machine (no power) Fan noisy or not working Fuser parts melted Fuser lamp doesn't light Toner not fused to the paper Action Go to the "Dead Machine Service Check" on page 2-13. Go to the "Cooling Fan Service Check" on page 2-12. Go to the "Hot Fuser Service Check" on page 2-18. Go to "Cold Fuser Service Check" on page 2-15. Go to "Cold Fuser Service Check" on page 2-15.
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Symptom Blank page Black page Heavy background Light print White or black lines or bands Toner on back of page Incorrect characters print Paper jams Main Motor noisy or does not move Paper never picks Paper feeds continuously Paper skew Printer not communicating with host Paper wrinkled or bent Top cover will not close Operator panel button does not respond Operator panel LEDs do not light or very dim
Action Go to "Blank page" on page 2-23. Go to "Black page" on page 2-24. Go to "Heavy background" on page 2-25. Go to "Light print" on page 2-28. Go to "White or black lines or bands" on page 2-29. Go to "Toner on back of page" on page 2-29. Go to "Incorrect characters print" on page 2-29. Go to "Paper Feed Service Check" on page 2-20. Go to "Main Motor Service Check" on page 2-18. Go to "Paper never picks" on page 2-22. Go to "Paper picks during POST and/or continuously" on page 2-21. Go to "Paper Feed Service Check" on page 2-20. Go to "Parallel Port Service Check" on page 2-30. Go to "Paper "trees", wrinkles, stacks poorly or curls" on page 2-23. Go to "Cover Open Switch Service Check" on page 2-12. Go to "Operator Panel Button Service Check" on page 2-20. Go to "Operator Panel Service Check" on page 2-19.
Diagnostic Information 2-11
4044-001
Service Checks
Note: All service checks which involve measuring voltages of the circuit boards (except the controller board) must be performed with the engine/LVPS to controller board cable disconnected and the printer positioned on its left side. This provides the servicer access to the various circuit boards underneath the printer while supplying necessary power to the rest of the printer.
Cooling Fan Service Check
FRU Interconnect Board Cooling Fan Action Make sure motor cable is properly seated in location CN408 on the interconnect board. Disconnect the cable and check connector-pin CN408-3 for +24 V dc. If the voltage is not present, replace the interconnect board. If the voltage is present, replace the cooling fan.
Cover Open Switch Service Check
Note: Make sure a toner cartridge is installed and the cover closes all the way, engaging the cover open switch lever. The lever can easily be positioned incorrectly if the top cover has been removed and replaced.
FRU Cover Open Switch
Action Make sure the cover open switch cable is properly seated in CN2 of the HVPS. Disconnect the cable and check the switch for continuity. Push the cover open switch lever down to engage the switch and close the circuit. If the circuit does not close, replace the switch.
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FRU HVPS Engine/LVPS Board
Action Measure the voltage at CN2-3 of the HVPS. It measures +24 V dc. If voltage is present at CN2-3, check for continuity between CN2-1 and CN1-2. If continuity does not exist, replace the HVPS. If continuity does exist, check the HVPS to engine/ LVPS board cable for continuity. Replace if defective. If voltage is not present at CN2-3, check the voltage at CN1-1. It measures +24 V dc. If it does, replace the HVPS. If it does not, check the voltage at CN2-2 of the engine/LVPS board. It measures +24 V dc. If it does, replace the HVPS to engine/LVPS board cable.
Dead Machine Service Check
Note: Check the AC line voltage. The voltage should 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
FRU LVPS Fuse
Action Check the fuse on the LVPS for continuity. Replace with the appropriate fuse if blown. If a fuse blows again after being replaced, install a new fuse and go to "Engine/ LVPS Board" on page 5-4 and check the engine/LVPS board output.
Diagnostic Information 2-13
4044-001
FRU Engine/LVPS Board Power Switch
Action Disconnect the cables from CN2 and CN5 and leave the cables connected to the power switch attached. With the printer positioned on its left side and the engine/LVPS board positioned on a flat surface, turn the power switch on and check the AC line voltage at connector CN201. If no voltage is present, replace the power switch. If line voltage is present, measure the voltages at connectors CN2 and CN5. Go to the"Engine/LVPS Board" on page 5-4 and check for correct voltage measurements. Replace the engine/LVPS board if any of the voltage measurements are incorrect. Check the continuity of the LVPS to interconnect board cable. Replace the cable if it does not measure continuity. Reconnect the LVPS to the interconnect board cable. Go to "Interconnect Board" on page 5-12 and measure voltages on the following connectors on the interconnect board: CN401/CN402/CN403/CN404/ CN405/CN407/CN408 If any of the measured voltages are incorrect, replace the interconnect board.
LVPS to Interconnect Board Cable
Interconnect Board
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4044-001
Fuser Service Check
Cold Fuser Service Check When toner is partially fused to the paper, it is usually caused by low fuser temperature. Avoid handling the lamp as much as possible as it is easily broken. Be careful not to touch the glass housing with bare hands 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 cover removed.
Diagnostic Information 2-15
4044-001 The fuser lamp does light
FRU Thermistor Action If the fuser lamp comes on and a fuser failure LED error code displays, be sure the thermistor is contacting the hot roll and the thermistor cable is firmly seated in connector CN1 on the LVPS board. Check for excessive toner buildup on the surface of the thermistor. Clean or replace as necessary. Turn the printer off and disconnect the thermistor cable from CN1 on the LVPS board. Measure the resistance of the thermistor between CN-1 and CN-2. The resistance measures approximately 225K ohms when cool. Replace the thermistor as necessary. Make sure the correct voltage lamp is installed. The voltage rating is stamped on one of the lamp contacts.
Fuser Lamp
2-16 Service Manual
4044-001 The fuser lamp does not light
FRU Fuser Lamp Lamp Cable Thermistor LVPS Action Turn the printer off and disconnect the fuser lamp wires from the fuser. Check for continuity across the fuser lamp wire contacts. 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 connector CN202 on the LVPS. It should match the line voltage. If it does not, replace the LVPS. If line voltage is present, check the fuser lamp cable for continuity. Replace if defective.Make sure the fuser thermistor is correctly connected to CN1 on the LVPS. If the problem persists, disconnect the thermistor cable from CN1 on the LVPS board and measure the voltage between CN1-1 and ground. The voltage measures approximately 3.9 V dc. If the voltage is incorrect, replace the LVPS. If correct, replace the thermistor. Step 2: No Continuity Check the thermal fuse for continuity. If incorrect, replace the thermal fuse. If correct, replace the lamp.
Diagnostic Information 2-17
4044-001 Hot Fuser Service Check
FRU Fuser Thermistor Action Disconnect the thermistor cable from the LVPS. Measure the resistance across CN1-1 and CN1-2 of the thermistor cable. Replace the thermistor if the resistance is lower than 1k ohm or shorted. Make sure the correct voltage fuser lamp is installed. Replace if necessary.
Fuser Lamp
Main Motor Service Check
FRU Interconnect Board Main Motor Main Motor Cable Action Check the interconnect board for the following voltages: CN405-3 +24 V dc CN405-4 +24 V dc If these voltages are not correct, replace the interconnect board. If these voltages are correct, check the main motor cable for continuity. If continuity exists on each wire, replace the main motor. If continuity does not exist on one or more of the wires, replace the cable.
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4044-001
Operator Panel Service Check
Inspect the operator panel cable for damage. Make sure the cable is plugged in securely. Run POST and check each LED for proper operation.
FRU Operator Panel Operator Panel Cable Action If more than one LED does not turn on or an individual LED stays on solid during POST, check the operator panel cable for continuity. Replace if defective. If the cable measures continuity, replace the operator panel. If all LEDs are dim and operate erratically during POST or all LEDs come on and stay on solid during POST, 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, make sure the cable is properly connected to the operator panel and the controller board. Disconnect the cable and check it for continuity. Replace if necessary. If the cable measures continuity, measure the following voltages with the printer on at idle: U5-1: Ground U5-2: +5 V dc U5-3: +5 V dc U5-5: +5 V dc U5-6: Ground If these voltages are not correct, replace the controller board. If these voltages are correct, replace the operator panel.
Operator Panel Operator Panel Cable Controller Board
Diagnostic Information 2-19
4044-001
Operator Panel Button Service Check
FRU Operator Panel Operator Panel Cable Action Disconnect the operator panel from the operator panel cable. Check the continuity between U5-1 and U5-2 on the operator panel as you press the operator panel button. As the button is pressed, continuity is present. Replace the operator panel if continuity is not present. If continuity is present, replace the operator panel cable.
Paper Feed Service Check
Paper Jam error indication during POST
FRU Exit Sensor Flag Action If the exit sensor flag is not resting within the paper exit sensor during POST, the printer displays a paper jam message. Make sure the flag is operating freely and correctly installed. Make sure the input paperfeed sensor is working properly. A stuck or incorrectly installed sensor causes this error.
Input Paper Feed Sensor
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4044-001 Paper picks during POST and/or continuously
FRU Pick Roller Clutch Solenoid Action Check the pick roller clutch for wear. The solenoid interacts with the clutch controlling motion of the pick roller. If the cam surface of the pick roller clutch assembly is worn, the solenoid may not stop the pick roller from rotating. Replace the pick roller clutch assembly if necessary. Make sure the spring on the solenoid is properly installed. If the spring is improperly installed or missing, the pick roller will continuously pick paper.
Paper picks but stops about an inch down the page
FRU Roller Guides Action Check for correct position of roller guides on pick roller assembly.
Paper picks but stops half way through the printer
FRU Input Paper Feed Sensor Interconnect Board Action Make sure the input paper feed sensor is working properly. Check for a broken or stuck flag on the input paper feed sensor. Check to make sure the cable is seated on the CN401 connector on the interconnect board. Disconnect the cable and check for the following voltages: CN401-3 +5 V dc CN401-4 Ground If these voltages are not correct, replace the interconnect board. If correct, replace the input paper feed sensor.
Diagnostic Information 2-21
4044-001 Paper never picks
FRU Paper Tray Action Make sure the paper tray is correctly installed. The black mylar guide sheet in the front of the tray must be positioned in the paper path just behind the pick roller assembly. This guide sheet can easily block the paper path if installed incorrectly. Make sure solenoid is installed correctly and its cable is plugged into CN402 on the interconnect board. If installation is correct, disconnect the solenoid and check CN402-1 for +24 V dc. If the voltage is present, replace the solenoid. If the voltage is not present, replace the interconnect board.
Pick Roller Solenoid
Paper occasionally picks or picks multiple sheets at once
FRU Pick Roller Assembly Paper Separator Assembly Action Check pick roller assembly for wear. Replace as necessary. Check the friction pad on the paper separator for signs of wear. Replace as necessary. Check the friction pad on the pick roller pad assembly for signs of wear. Replace as necessary.
Pick Roller Pad Assembly
2-22 Service Manual
4044-001 Paper "trees", wrinkles, stacks poorly or curls
FRU Transfer Roller Action This problem is most likely due to a worn transfer roller. A worn transfer roller causes the printer to run hotter than required for the media being printed. Excessive heat can cause paper treeing problems, poor stacking or curl.
Print Quality Service Check
Blank page
FRU Toner Cartridge Action Remove the toner cartridge and gently shake the assembly to evenly distribute the toner. Blank pages can be caused by a defective printhead assembly, high voltage power supply or engine/ LVPS board. Disconnect the printhead cable from the HVPS and measure the signals on connectors CN3 and CN4. Go to the "High Voltage Power Supply" on page 5-9 in the connector locations chapter and check the voltage measurements. If the voltages are correct, check the printhead cable for continuity. If the cable measures continuity, replace the printhead. If the cable does not measure continuity, replace the cable. If the voltage measurements are not correct, replace the HVPS. If the problem still exists, replace the engine/LVPS board.
Printhead Printhead Cable HVPS Engine/LVPS Board
Diagnostic Information 2-23
4044-001 Black page Note: Incorrect laser exposure or incorrect charging of the photoconductor causes an all black page.
FRU HVPS Contacts Action Check the contacts for contamination and correct installation. Replace as necessary. Make sure the HVPS to engine/ LVPS cable is correctly installed. Disconnect the cable and measure the signals on CN2 of the engine/ LVPS board. Go to "Engine/LVPS Board" on page 5-4 and check the voltage measurements. If the voltages are not correct, replace the engine/LVPS board. If the voltages are correct, check the HVPS to engine/LVPS cable for continuity. If the cable does not measure continuity, replace the cable. If the cable measures continuity, replace the HVPS.
Engine/LVPS Board HVPS Cable HVPS
2-24 Service Manual
4044-001 Heavy background Poor development or poorly charged toner particles cause excessive background. This is more noticeable as the toner cartridge nears end of life.
FRU Toner Cartridge Action Make sure toner cartridge is correctly installed and the high voltage contacts are clean. If the cartridge is installed correctly, try a new cartridge. Check the contacts for correct installation and contamination where contact is made with the toner cartridge and HVPS Board. Clean as necessary. If this does not correct the problem, replace the following FRUs one at a time in the order shown: HVPS Board Engine/LVPS Board
HVPS Contacts HVPS Board Engine/LVPS Board
Diagnostic Information 2-25
4044-001 Partial blank image/white spots (no periodic pattern)
FRU Toner Cartridge Action Remove the toner cartridge and gently shake the assembly to evenly distribute the toner. If toner cartridge is low, try a new one. Check left and right backup roller springs and backup roller to ensure adequate even pressure is applied to the fuser hotroll. Make sure recommended paper is being used.
Fuser Backup Roller Springs
Paper
Variation in image density horizontally across page
FRU Toner Cartridge Action The charge roll in the toner cartridge may have an unbalanced pressure against the PC drum. Try a new toner cartridge. Check the springs in the left and right transfer roller bearings. The bearing assemblies should support the transfer roller, applying even pressure to the PC drum. Replace either or both transfer roller bearing assemblies if the springs show signs of damage or fatigue. Inspect the transfer roller for signs of wear or damage and replace as necessary.
Transfer Roller Bearing Assembly Transfer Roller
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4044-001 Periodic irregularity down page
FRU PC Drum (Toner Cartridge) Distance Between Irregularity 96.2 mm Charge Roller (Toner Cartridge) Distance Between Irregularity 37.7 mm Supply Roller (Toner Cartridge) Distance Between Irregularity 31.3 mm Developer Roller (Toner Cartridge) Distance Between Irregularity 46.1 mm Transfer Roller Distance Between Irregularity 47.1 mm Hot Roll Distance Between Irregularity 56.4 mm Backup Roller Distance Between Irregularity 56.5 mm Action The PC drum or gear driving the PC drum may be contaminated or damaged. Inform the customer to replace the toner cartridge. The charge roller or gear driving the charge roller may be contaminated or damaged. Inform the customer to replace the toner cartridge. The supply roller or gear driving the supply roller may be contaminated or damaged. Inform the customer to replace the toner cartridge. The supply roller or gear driving the developer roller may be contaminated or damaged. Inform the customer to replace the toner cartridge. The transfer roller or gear driving the transfer roller may contaminated or damaged. Inspect the roller and gear. Replace as necessary. The hot roll of the fuser or gear driving the hot roll may be contaminated or damaged. Inspect the hot roll and gear. Replace or clean as necessary. The backup roller of the fuser may be contaminated or damaged. Inspect and replace as necessary.
Diagnostic Information 2-27
4044-001 Poor fusing of image
FRU Fuser Lamp Action The fuser may not be operating at the proper temperature to fuse the toner to the paper. Go to the "Cold Fuser Service Check" on page 2-15. Make sure recommended paper is being used.
Paper
Light print
FRU Toner Cartridge Action Make sure the toner cartridge is installed correctly and is not low on toner. If the problem continues, install a new toner cartridge. Check the transfer roller for signs of toner buildup and contamination. Inspect the HVPS contact (transfer roller) for contamination. Inspect the HVPS board for contamination where it meets the HVPS contacts. If all components appear free of contamination, replace the following FRUs one at a time in the order shown: Transfer Roller HVPS Contact (Transfer Roller) HVPS Board
Transfer Roller HVPS Contact (Transfer Roller) HVPS Board
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4044-001 White or black lines or bands
FRU Toner Cartridge Paper Feed Drive Gears Action Banding appears as light or dark horizontal lines on a uniformly gray page or on a page with a large area of graphics. Banding is primarily due to a variation in the speed of the paper as it feeds through the printer especially in the developer and transfer process. Inspect the toner cartridge and paper feed components, especially the drive gears, for signs of wear, debris, binds or damage.
Toner on back of page
FRU Print Cartridge Action Inspect the overall paper path for signs of spilled toner. Gently clean the contaminated areas with a soft cloth or compressed air. The fuser hot roll can cause toner on the back of the paper if toner is building up on the hot roll. This buildup may transfer to the backup roller, later transferring to the backside of the paper. Inspect the hot roll and backup roller for signs of contamination and replace as necessary. A transfer roller contaminated with toner can cause toner to transfer to backside of printed pages. Inspect the transfer roller for contamination and replace as necessary.
Fuser Hot Roll Backup Roller
Transfer Roller
Incorrect characters print Make sure the correct printer driver software is installed. Incorrect software can cause incorrect characters to print and the image may not fit the page. Diagnostic Information 2-29
4044-001
Parallel Port Service Check
1. Perform a print test to make sure the printer prints correctly. 2. Be sure the printer cable is designed for bidirectional printing. 3. Be sure the user application is set up correctly. Improper set up can prevent establishing a communication link with the printer. 4. Try enabling the parallel port pull-up resistors. Go to "Parallel Mode 1" on page 3-8. Try printing a test page after enabling resistors. If the printer still does not print, disable the resistors. 5. If the internal print test page prints correctly, the user application/printer driver is set up correctly and the correct bidirectional parallel cable is installed, yet the printer still fails to print on command from the host, replace the controller board.
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3. Diagnostic Aids
This chapter explains the tests and procedures you can run to identify printer failures and verify that repairs have corrected the problem.
Memory Test
The following tests run sequentially when performing this test: Standard Memory Test Optional Memory Test The memory test runs automatically during POST if a different size optional memory SIMM is installed since the last printer power on. Perform the following steps to run the Memory Test: 1. Turn the printer off. 2. Open the top cover. 3. Press and hold the operator panel button as you turn on the printer. Release the button once the Error LED comes on solid. 4. Close the top cover. 5. If all the diagnostic tests run correctly, the Data LED blinks. If a test fails, the Error LED pattern for the service error code displays on the operator panel. Go to the "Service Error Codes" on page 2-2 and take the indicated action for that error.
Diagnostic Test
Once the memory test is complete, the diagnostic test pages can be printed by briefly pressing the operator panel button. Two pages are printed. The first page is a listing of various printer settings and code level. The second page is used to inspect registration. If the printer requires a registration adjustment, you must contact your next level of support to obtain the software utility that enables you to adjust registration.
Diagnostic Aids 3-1
4044-001
Print Quality Test
There are three print quality test pages. The first page displays the installed printer base code level and user default settings for the following: Top Margin Offset Left Margin Offset Printer Page Count Installed Memory PQET Setting (on/off) Toner Saver (on/off) Print Resolution Print Darkness The next two test pages are used to evaluate print quality. One test page is gray and the other is black. Perform the following steps to print the second test page: 1. 2. 3. 4. 5. 6. 7. Turn the printer off. Open the top cover. Turn the printer power on. When the Error LED comes on solid, double-click the operator panel button. Once the Error and Press Button LEDs start blinking, close the top cover. The Ready LED comes on solid and the Error and Press Button LED continue blinking. Double-click the operator button four times. The Ready and Data LEDs come on solid while the Error and Press Button LEDs continue blinking. Perform a long button press until all LEDs come on solid. The test pages are printing. When the test pages have finished printing, the Ready LED comes on solid and the Data LED goes off.
8. 9. 10.
Note: After the print quality test pages print, the printer automatically returns to the Ready mode.
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4044-001
User Mode Print Test
The User Mode Print Test Page displays the user default values, installed options, printer features, various typefaces, and the installed printer base code level. 1. Turn the printer power on. The Ready LED comes on solid (printer is in the ready state). 2. Press and release the operator panel button. 3. The Ready LED comes on solid and the Data LED blinks indicating the printer is busy. 4. The test page prints and the operator panel Ready LED comes on solid and the Data LED turns off. 5. The printer returns to the Ready mode.
Configuration Mode
The configuration mode gives the ability to set the following printer functions through the operator panel: Parallel Port Settings Enable Port NPA Mode Protocol Mode 1 Mode 2 Strobe Adjust USB Settings Enable Port NPA Mode PPDS Activated Auto CRLF/LFCR
Diagnostic Aids 3-3
4044-001 Operator Panel Configuration Mode Button Definition
Term Brief Button Press Description Press the operator panel button no longer than three seconds. Press and hold the operator panel button for more than three seconds. Result This action moves through the configuration mode settings. This action selects and saves the setting for the menu item displayed. To indicate that the setting is saved, all LEDs blink once. This action moves through the configuration mode menu.
Long Button Press
Double-Click Button Press
Press and release the operator panel button two times. Each press and release action must be performed within a half second.
Perform the following steps to enter the configuration mode: 1. 2. 3. 4. 5. Turn the printer power off. Open the top cover. Turn the printer power on. When the Error LED comes on solid, double-click the operator panel button. When the Error and Press Button LEDs start blinking, close the top cover. The Ready LED comes on solid and the Error and Press Button LEDs continue blinking. Double-click the operator panel button two times. The Load Paper LED comes on solid while the Error and Press Button LEDs continue blinking. Perform a long button press. All LEDs blink once. The Ready LED stays on solid. The printer is in the configuration mode. To exit the configuration mode, turn the printer power off.
6.
7. 8.
Configuration Mode Operator Panel Overlays When in configuration mode, the first menu item and its setting are displayed. The first menu item is the Parallel Port and is indicated by
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4044-001 the solid Ready LED. The setting of the menu item is indicated by the status of the Press Button LED. To change the menu item setting, briefly press the operator panel button. Once the setting you want is indicated by the status of the Press Button LED, perform a long button press to save the setting. All LEDs come on while the setting is saved. To select other menu items, double-click the operator panel button until the menu item LED you want is selected. There are ten menu items that can be selected by using the five LEDs as indicated by the following overlays on two passes through the configuration menu. The first time through the menu the LED selected is on solid. The second time through the menu the LED selected is blinking. First pass - LED on solid overlay.
Parallel Port Parallel NPA Parallel Protocol PPDS CRLF/LFCR Off/On/Auto Operator Panel Button
Second pass - LED blinking overlay
Parallel Mode 1 Parallel Mode 2 Parallel Strobe USB Port USB NPA Off/On/Auto Operator Panel Button
Diagnostic Aids 3-5
4044-001 Configuration Mode Settings The following is a description of the available configuration mode menu items and settings. The asterisk (*) indicates the factory default setting. Parallel Port Parallel Port allows the user to enable or disable the parallel port. If the port is not being used, disabling it frees allocated memory to be used to process print jobs. Perform the following steps to change the Parallel Port setting: 1. Enter the configuration mode. Note: The Parallel Port (Ready) LED comes on solid. The current Parallel Port setting is indicated by the Off/On/Auto (Press Button) LED. When the LED is off, the parallel port is disabled. When the LED is *blinking, the parallel port is enabled. 2. Perform a brief button press to select the Parallel Port setting. 3. Perform a long button press. All LEDs blink once, indicating the setting is saved. 4. Exit the configuration mode by turning the printer power off. Parallel NPA Parallel NPA mode allows two way communication between the host and the printer. Perform the following steps to change the Parallel NPA setting: 1. Enter the configuration mode. 2. Perform a double click button press. This moves to the Parallel NPA item on the configuration menu. The Parallel NPA (Data) LED comes on solid. 3. The current Parallel NPA setting is indicated by the Off/On/Auto (Press Button) LED. · When the LED is on solid, all data received by the printer must be in NPA packets. Any non-packet data is rejected as bad packets. · When the LED is off, the printer is not performing any NPA processing.
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· When the LED is *blinking, the printer examines incoming
data and decides whether it is receiving NPA packets. 4. Perform a brief button press to select the Parallel NPA setting. 5. Perform a long button press. All LEDs blink once, indicating the setting is saved. 6. Exit the configuration mode by turning the printer power off. Parallel Protocol The printer supports two parallel protocol settings: standard and fastbytes. When the protocol is set to standard, information is received at a normal transmission rate. When the protocol is set to fastbytes, information can be received at a much faster transmission rate provided the host computer supports the fastbytes mode. Perform the following steps to change the Parallel Protocol setting: 1. Enter the configuration mode. 2. Perform a double click button press twice. This moves to the Parallel Protocol item on the configuration menu. The Parallel Protocol (Load Paper) LED comes on solid. 3. The current Parallel Protocol setting is indicated by the Off/On/ Auto (Press Button) LED. When the LED is off, the Parallel Protocol is set to standard. When the LED is *on, the Parallel Protocol is set to fastbytes. Perform a brief button press to select the Parallel Protocol setting. 4. Perform a long button press. All LEDs blink once, indicating the setting is saved. 5. Exit the configuration mode by turning the printer power off. PPDS To access the PPDS data stream, the PPDS setting must be set to active. When PPDS is activated, the default Printer Language is changed to PPDS and the default PCL and PostScript Smartswitch settings are changed to Off. Perform the following steps to change the PPDS setting: 1. Enter the configuration mode. 2. Perform a double click button press three times. This moves to the PPDS item on the configuration menu. The PPDS (Paper Jam) LED comes on solid. Diagnostic Aids 3-7
4044-001 3. The current PPDS setting is indicated by the Off/On/Auto (Press Button) LED. When the LED is *off, the PPDS is set to inactive. When the LED is on, the PPDS is set to active. Perform a brief button press to select the PPDS setting. 4. Perform a long button press. All LEDs blink once, indicating the setting is saved. 5. Exit the configuration mode by turning the printer power off. CRLF/LFCR This function controls whether or not the printer automatically performs a carriage return after a line feed control command and whether or not the printer automatically performs a line feed after a carriage return control command. Perform the following steps to change the CRLF/LFCR setting: 1. Enter the configuration mode. 2. Perform a double click button press four times. This moves to the CRLF/LFCR item on the configuration menu. The CRLF/ LFCR (Err