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Lexmark OptraTM K
4046
•Table of Contents
•Start Diagnostics
•Safety and Notices
•Trademarks
•Index
•Manuals Menu
Lexmark and Optra are trademarks of Lexmark International, Inc., registered in the United States and/or other
countries.
Second Edition (October 1998)
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. Publications are not stocked at the address given below; requests for publications should be made to your point of purchase.
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 D22A/035-3, 740 New Circle Road NW, 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.
Lexmark and Optra are trademarks of Lexmark International, Inc., registered in the United States and/or other countries.
Other trademarks are the property of their respective owners.
© Copyright Lexmark International, Inc. 1998. 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.
Contents
Notices and Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . vii
Laser Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii Laser Advisory Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii Class 1 Laser Statement Label . . . . . . . . . . . . . . . . . . . . . viii
General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
Maintenance Approach. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 Mechanical Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 System Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 Printer Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 Paper Feed Drive Mechanism . . . . . . . . . . . . . . . . . . . . . . . . 1-5 Process Drive Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7 Print Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7 Fuser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8 Paper Ejection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
Diagnostic Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1
Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 Initial Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 Service Error Code Table. . . . . . . . . . . . . . . . . . . . . . . . . 2-3 User Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5 Symptom Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Service Checks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9 Cover Open Switch Service Check . . . . . . . . . . . . . . . . . 2-9 Dead Machine Service Check . . . . . . . . . . . . . . . . . . . . 2-10 Engine Fan Service Check. . . . . . . . . . . . . . . . . . . . . . . 2-11 Erase LED Service Check . . . . . . . . . . . . . . . . . . . . . . . 2-11 Exit Sensor Service Check. . . . . . . . . . . . . . . . . . . . . . . 2-12 Fuser Service Check . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13 Image Quality Service Check . . . . . . . . . . . . . . . . . . . . . 2-13 Main Motor Service Check . . . . . . . . . . . . . . . . . . . . . . . 2-20 Input Sensor Service Check. . . . . . . . . . . . . . . . . . . . . . 2-21 Operator Panel Buttons Service Check . . . . . . . . . . . . . 2-22 Operator Panel Display Service Check . . . . . . . . . . . . . 2-22 Options Service Check. . . . . . . . . . . . . . . . . . . . . . . . . . 2-23 Paper Feed Service Check . . . . . . . . . . . . . . . . . . . . . . 2-24 Parallel Port Service Check . . . . . . . . . . . . . . . . . . . . . . 2-26 Printhead Service Check . . . . . . . . . . . . . . . . . . . . . . . . 2-26 Process Fan Service Check . . . . . . . . . . . . . . . . . . . . . . 2-27 Serial Port Service Check . . . . . . . . . . . . . . . . . . . . . . . 2-27
Contents iii
Standard Bin Full Sensor Service Check . . . . . . . . . . . 2-27
Toner Sensor Service Check. . . . . . . . . . . . . . . . . . . . . 2-29
Transfer Corona Service Check . . . . . . . . . . . . . . . . . . 2-29
Diagnostic Aids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Diagnostic Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Exiting the Diagnostic Mode . . . . . . . . . . . . . . . . . . . . . . 3-1
Power-On Self Test (POST) . . . . . . . . . . . . . . . . . . . . . . 3-2
Device Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Quick Disk Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Disk Test/Clean . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Flash Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Disabling Download Emulations . . . . . . . . . . . . . . . . . . . 3-4
Error Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Viewing the Error Log . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Clearing the Error Log . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Hardware Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
LCD Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Button Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
DRAM Memory Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
ROM Memory Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
Parallel Wrap Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
Serial Wrap Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
Input Tray Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
Input Tray Feed Test . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
Input Tray Sensor Test . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
Base Sensor Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
Print Registration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
Printer Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
Setting the Page Count . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
Viewing the Permanent Page Count . . . . . . . . . . . . . . . 3-13
Setting Configuration ID . . . . . . . . . . . . . . . . . . . . . . . . 3-13
Print Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14
Print Quality Test Pages . . . . . . . . . . . . . . . . . . . . . . . . 3-14
Printing Menu Settings Page . . . . . . . . . . . . . . . . . . . . . 3-15
Paper Jams - Base Printer . . . . . . . . . . . . . . . . . . . . . . 3-16
Paper Jams - Options . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16
Repair Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Precautions for Disassembly and Cleaning. . . . . . . . . . . 4-1
Instructions for Handling the PWBs with MOS ICs . . . . . 4-1
Precautions for Handling the Drum Cartridge . . . . . . . . . 4-2
Parts not to be touched . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Precautions for Handling the Laser Equipment . . . . . . . . 4-3
iv Service Manual
Removal Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4 Control Board Removal . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4 Cover Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5 Cover-Open Switch Removal . . . . . . . . . . . . . . . . . . . . . . 4-7 Engine Board Removal . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8 Engine Fan Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9 Exit Paper Feed Roller Assembly Removal . . . . . . . . . . 4-10 Fuser Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11 High Voltage Power Supply Board and Interconnect Board Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12 Main Motor Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14 Multi-Function Feeder Board Removal. . . . . . . . . . . . . . 4-16 Paper Feed Motor Removal . . . . . . . . . . . . . . . . . . . . . . 4-17 Paper Feed Roller Removal . . . . . . . . . . . . . . . . . . . . . . 4-18 Pick-up Motor Removal . . . . . . . . . . . . . . . . . . . . . . . . . 4-22 Pick-up Roller Removal . . . . . . . . . . . . . . . . . . . . . . . . . 4-23 Power Supply Board Removal . . . . . . . . . . . . . . . . . . . . 4-25 Print Density Board Removal . . . . . . . . . . . . . . . . . . . . . 4-26 Printhead Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-27 Printhead Erase LED Assembly Removal . . . . . . . . . . . 4-27 Process Fan Removal . . . . . . . . . . . . . . . . . . . . . . . . . . 4-28 Separator Assembly Removal . . . . . . . . . . . . . . . . . . . . 4-30 Stacker Full Sensor Board Removal . . . . . . . . . . . . . . . 4-31 Transfer Corona Removal . . . . . . . . . . . . . . . . . . . . . . . 4-32
Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1
Front and Right Side of Printer. . . . . . . . . . . . . . . . . . . . . 5-1 Rear and Left Side of Printer . . . . . . . . . . . . . . . . . . . . . . 5-2 Interior of Printer with Upper Door Open . . . . . . . . . . . . . 5-3 Optional Multi-Function Feeder and Paper Feeder . . . . . 5-4 Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5 EP Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6 Engine Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7 Control Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8 Power Supply Board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9 Interconnect Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10
Parts Catalog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1
How to Use This Parts Catalog. . . . . . . . . . . . . . . . . . . . . . . . 6-1 Upper Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-2 Covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-4 Electronics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-6 Frame, Left Side. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-10 Frame, Right Side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-12
Contents v
Input Paper Feed. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-14
Printhead and Paper Feed Redrive . . . . . . . . . . . . . . . . . 6-16
Exit Paper Feed Frame . . . . . . . . . . . . . . . . . . . . . . . . . . 6-18
Fuser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-20
Paper Tray, 250 Sheet . . . . . . . . . . . . . . . . . . . . . . . . . . 6-22
Optional 450 Sheet Second Paper Tray . . . . . . . . . . . . . 6-24
Optional 450 Sheet Second Paper Drawer (2) . . . . . . . . 6-26
Optional 450 Sheet Second Paper Drawer (2) . . . . . . . . 6-28
Optional Multi-Function Feeder . . . . . . . . . . . . . . . . . . . . 6-30
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x-1
vi Service Manual
Notices and Safety Information
References in this publication to products, programs, or services do not imply that the manufacturer intends to make these available in all countries in which it operates. Any reference to a product, program, or service is not intended to state or imply that only that product, program, or service may be used. Any functionally equivalent product, program, or service that does not infringe any existing intellectual property rights may be used instead. Evaluation and verification of operation in conjunction with other products, programs, or services, except those expressly designated by the manufacturer, are the user’s responsibility.
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.
Notices and Safety Information vii
Laser Advisory Label
Label is inside printerl
Class 1 Laser Statement Label
Label is on back of printer.
viii Service Manual
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 .
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.
Notices and Safety Information ix
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.
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
x Service Manual
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.
Notices and Safety Information xi
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.
xii Service Manual
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.
Notices and Safety Information xiii
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.
Japanese Laser Notice
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Chinese Laser Notice
Korean Laser Notice
Notices and Safety Information xv
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.
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.
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•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.
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.
Notices and Safety Information xvii
• Existe mayor riesgo de descarga eléctrica y de daños personales durante el desmontaje y la reparación de la máquina. El personal cualificado debe ser consciente de este peligro y tomar las precauciones necesarias.
Informações de Segurança
•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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Notices and Safety Information xix
xx Service Manual
1. General Information
Maintenance Approach
The diagnostic information in this manual leads you to the correct field replaceable unit (FRU) or part. Use the error code charts, symptom index, and service checks to determine the symptom and repair the failure.
After you complete the repair, perform tests as needed to verify the repair.
Tools
The removal and adjustment procedures described in this manual require the following tools and equipment:
•Magnetic tip Phillips screwdrivers, large and small
•Flat-blade screwdriver
•Analog volt ohmmeter (a digital volt ohmmeter may also be used)
•Needle nose pliers
When you make voltage readings, always use frame ground unless another ground is specified.
General Information 1-1
Abbreviations
ASIC |
Application-Specific Integrated Circuit |
CSU |
Customer Setup |
DRAM |
Dynamic Random Access Memory |
EEPROM |
Electrically Erasable Programmable Read- |
|
Only Memory |
EP |
Electrophotographic Process |
ESD |
Electrostatic Discharge |
FRU |
Field Replaceable Unit |
HVPS |
High Voltage Power Supply |
LAN |
Local Area Network |
LASER |
Light Amplification by Stimulated Emission |
|
of Radiation |
LCD |
Liquid Crystal Display |
LED |
Light-Emitting Diode |
LVPS |
Low Voltage Power Supply |
NVRAM |
Nonvolatile Random Access Memory |
OEM |
Original Equipment Manufacturer |
PICS |
Problem Isolation Charts |
PIXEL |
Picture Element |
POR |
Power-On Reset |
POST |
Power-On Self Test |
PQET |
Print Quality Enhancement Technology |
RIP |
Raster Image Processor |
ROS |
Read-Only Storage |
SRAM |
Static Random Access Memory |
UPR |
Used Parts Replacement |
VAC |
Volts alternating current |
VDC |
Volts direct current |
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Mechanical Operation
This printer uses three motors to feed paper.
The pick-up motor drives the pick-up roller in the printer or in the multi-function feeder. The rotating direction of the motor determines which roller will be selected.
The paper feed motor drives the paper feed roller.
The main motor drives the fuser, the paper exit roller, and the redrive roller.
General Information 1-3
System Diagram
The central processing unit (CPU) in the main controller controls the entire printer and the data received from the interconnect.
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Printer Operation
1.When the printer receives a printing command, the main motor starts to rotate to initialize the print unit (including the photoconductive drum, developer, cleaning roller, and toner agitator) and to warm up the fuser. The motor in the printhead also starts to rotate to initialize the printhead.
2.The pick-up motor rotates counterclockwise to pick up paper from the paper tray. To print using the multi-function feeder, the host sends a paper select command. When receiving it, the pick-up motor rotates clockwise to drive the pick-up roller of the multi-function feeder. The paper feed motor starts to rotate to turn the paper feed roller.
3.The pick-up motor stops turning when the bottom edge of the paper exits the pick roller. The paper feed motor and the main motor continue to rotate the paper feeder roller, print unit, fuser, exit roller, and redrive roller until the paper passes through.
4.When the mechanism controller detects the bottom edge of the paper by the paper exit sensor, it stops both motors. The printer then waits for the next command.
Paper Feed Drive Mechanism
The main motor and the gear train are mounted on the metal frame.
The power of the pick-up motor gear is distributed to the pick-up roller of the paper tray or that of the multi-function feeder. Selection is determined by the rotating direction of the motor.
The power of the paper feed motor is distributed to the paperfeed roller.
Operation:
1.When the pick-up motor rotates counterclockwise, the power is transmitted to the pick-up roller of the paper tray through the center gear of the epicyclic gear train.
2.When the pick-up motor rotates clockwise, the power is transmitted to the pick-up roller of the multi-function feeder through the circumference gear of the epicyclic gear train.
3.When the paper feed motor rotates counterclockwise, the power
General Information 1-5
is transmitted to the paper feed roller.
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Process Drive Mechanism
The power of the main motor is distributed to the print unit, the fuser, and the paper eject roller. The power of the motor is transmitted to the print unit through gears A, B, C, and D, and to the hot roll of the fuser through gears A,B,C,E, and F.
Print Unit
The print unit consists of a photoconductive drum (OPC drum), precharger assembly, developer assembly, recycle screw, and toner agitator.
General Information 1-7
Gear A receives power from the process drive assembly, transmitting the power to the photoconductive drum gear, the magnet roll (gear B), the toner agitator (gear C), the recycle screw, and gear D.
Fuser
The fuser consists of the hot roll assembly, and the backup roller. The hot roll has a halogen lamp, hot roll, temperature sensor, thermal fuse, and supporting parts. The back-up roller rotates with the hot roll.
Paper Ejection
Paper is ejected either through the rear stacker or the upper exit bin. When the stacker is folded down, paper exits the rear of the printer and rests on the rear stacker. When the stacker is in an upward position, it guides paper through the redrive roller which forces the paper
1-8
to the upper exit bin. Roller gears receive power from the hot roll gear.
General Information 1-9
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