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Lexmark OptraTM SC 1275
5040-001
· Table of Contents · Start Diagnostics · Safety and Notices · Trademarks · Index
Lexmark and Lexmark with diamond design are trademarks of Lexmark International, Inc., registered in the United States and/or other countries.
First Edition (January 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. 1997. 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. . . . . . . . . . . . . . . . . . . . . . . . . . viii Laser Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii Laser Advisory Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix Class 1 Laser Statement Label . . . . . . . . . . . . . . . . . . . . . . ix General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Maintenance Approach . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 Paper Feed Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 Drum Cartridge Toner Full Detection. . . . . . . . . . . . . . . . 1-6 Synchronizing Rollers . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7 Paper Type Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8 Development . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10 Toner Empty / Toner Cartridge Detection . . . . . . . . . . . 1-10 AIDC Sensor and Erase Lamp . . . . . . . . . . . . . . . . . . . 1-11 Diagnostic Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 Initial Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 Operator Error Message Table . . . . . . . . . . . . . . . . . . . . 2-2 Status Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 Line 1 Status Messages . . . . . . . . . . . . . . . . . . . . . . . . . 2-3 Line 2 Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10 Supplies Status Messages . . . . . . . . . . . . . . . . . . . . . . 2-11 Attendance Messages . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11 Service Error Message Table . . . . . . . . . . . . . . . . . . . . 2-26 Symptom Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-29 Service Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-33 Fuser Service Check . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-33 Developing Motor Service Check . . . . . . . . . . . . . . . . . 2-34 Transport Motor Service Check. . . . . . . . . . . . . . . . . . . 2-34 Image Transfer Belt Service Check. . . . . . . . . . . . . . . . 2-35 Paper Jam Service Check . . . . . . . . . . . . . . . . . . . . . . . 2-35 Toner Cartridge Rack Service Check . . . . . . . . . . . . . . 2-38 Printhead Cooling Fan Service Check. . . . . . . . . . . . . . 2-39 Power Supply Cooling Fan Motor Service Check . . . . . 2-39 Suction Fan Motor Service Check . . . . . . . . . . . . . . . . . 2-39 AC Power Service Check . . . . . . . . . . . . . . . . . . . . . . . 2-40 Marks on Paper Service Check . . . . . . . . . . . . . . . . . . . 2-41 Image Quality Troubleshooting . . . . . . . . . . . . . . . . . . . 2-42
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Sensor Service Check . . . . . . . . . . . . . . . . . . . . . . . . . . 2-47 Diagnostic Aids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-48 Basic Printer Paper Passage Test . . . . . . . . . . . . . . . . . 2-48 Operator Menu Disabled . . . . . . . . . . . . . . . . . . . . . . . . 2-48 Diagnostic Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-48 Diagnostic Menu Group . . . . . . . . . . . . . . . . . . . . . . . . . 2-48 Setting Printer Registration . . . . . . . . . . . . . . . . . . . . . . 2-50 Print Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-50 Quality Pages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-51 Clean Engine Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-51 LCD Hardware Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-51 Button Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-51 DRAM Memory Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-51 ROM Memory Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-52 Parallel Wrap Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-53 Serial Wrap Tests. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-54 Input Tray Sensor Test. . . . . . . . . . . . . . . . . . . . . . . . . . 2-55 Size Sensing Sensor Test . . . . . . . . . . . . . . . . . . . . . . . 2-55 Base Sensor Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-56 Quick Disk Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-57 DISK Test/Clean. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-57 Flash Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-58 Setting the Page Count . . . . . . . . . . . . . . . . . . . . . . . . . 2-58 Viewing the Permanent Page Count . . . . . . . . . . . . . . . 2-58 Viewing the Error Log. . . . . . . . . . . . . . . . . . . . . . . . . . . 2-58 Clearing the Error Log . . . . . . . . . . . . . . . . . . . . . . . . . . 2-59 Exiting Diagnostic Mode. . . . . . . . . . . . . . . . . . . . . . . . . 2-59 Print Quality Test Page . . . . . . . . . . . . . . . . . . . . . . . . . 2-60 Print Quality Test Page . . . . . . . . . . . . . . . . . . . . . . . . . 2-61 Repair Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1 Precautions for Disassembly and Cleaning . . . . . . . . . . . 3-1 Instructions for Handling the PWBs with MOS ICs. . . . . . 3-1 Precautions for Handling the Drum Cartridge . . . . . . . . . 3-2 Parts not to be touched . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 Precautions for Handling the Laser Equipment . . . . . . . . 3-3 Adjustment Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3 Registration Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3 Rack Lever Solenoid Adjustment . . . . . . . . . . . . . . . . . . . 3-5 Removal Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5 Outer Cover Removals. . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5 Image Transfer Roller Removal . . . . . . . . . . . . . . . . . . . . 3-6 Drum Cartridge Removal . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
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Waste Toner Bottle Removal. . . . . . . . . . . . . . . . . . . . . . 3-7 Image Transfer Belt Removal . . . . . . . . . . . . . . . . . . . . . 3-7 Fuser Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8 Oil Coating Roller Removal . . . . . . . . . . . . . . . . . . . . . . . 3-9 Heater Lamp Removal. . . . . . . . . . . . . . . . . . . . . . . . . . 3-10 Printhead Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11 Paper Exit Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12 High Voltage (HV1) / Sub High Voltage Board (PWB-F) Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12 Shield Plate Removal . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13 Power Supply Removal . . . . . . . . . . . . . . . . . . . . . . . . . 3-13 Mechanical Control Board Removal . . . . . . . . . . . . . . . 3-14 Power Supply Frame Removal . . . . . . . . . . . . . . . . . . . 3-14 Printhead Frame Removal. . . . . . . . . . . . . . . . . . . . . . . 3-15 Toner Empty / Toner Cartridge Detecting Board (PWB-B) Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16 Toner Cartridge Rack Removal . . . . . . . . . . . . . . . . . . . 3-16 Mechanical Controller Board Frame Removal. . . . . . . . 3-19 Paper Size/Cassette Detecting Board (PWB-E) Removal 3-19 Paper Take-Up Removal . . . . . . . . . . . . . . . . . . . . . . . . 3-19 Suction Assembly Removal. . . . . . . . . . . . . . . . . . . . . . 3-25 Suction Fan Motor Removal . . . . . . . . . . . . . . . . . . . . . 3-27 Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 Parts of the Printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 Parts of the Printer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 Printing Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6 Switches and Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7 Gears and Rollers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10 Electrical Components. . . . . . . . . . . . . . . . . . . . . . . . . . 4-12 Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-18 Printed Circuit Boards . . . . . . . . . . . . . . . . . . . . . . . . . . 4-19 Parts Catalog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1 How to Use This Parts Catalog . . . . . . . . . . . . . . . . . . . . . . . 5-1 Housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 Frames 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6 Frames 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10 Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14 Paper Take-Up 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-18 Paper Take-Up 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-22 Image Transfer Belt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-24 Image Transfer Belt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-26 Transfer Roller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-28
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Paper Transport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-32 Rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-34 Fuser 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-38 Fuser 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-40 Fuser/Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-42 Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-44 Electrical Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-46 Second Cassette (Tray 1) . . . . . . . . . . . . . . . . . . . . . . . .5-50 Third Cassette (Tray 2) . . . . . . . . . . . . . . . . . . . . . . . . . .5-54 Paper Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-56 Controller Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-58 Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . X1
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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 viii
Laser Advisory Label
Label is inside printerl
Class 1 Laser Statement Label
Label is on back of printer.
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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 .
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 x
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 xi 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 xii
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.
Notices and Safety Information xiv
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 xvi
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.
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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.
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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.
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Notices and Safety Information xviii
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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.
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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 xx
xxi 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:
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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 CSU DRAM EEPROM EP ESD FRU HVPS LAN LASER LCD LED LVPS NVRAM OEM PICS PIXEL POR POST PQET RIP ROS SRAM UPR VAC VDC Application-Specific Integrated Circuit Customer Setup Dynamic Random Access Memory Electrically Erasable Programmable ReadOnly Memory Electrophotographic Process Electrostatic Discharge Field Replaceable Unit High Voltage Power Supply Local Area Network Light Amplification by Stimulated Emission of Radiation Liquid Crystal Display Light-Emitting Diode Low Voltage Power Supply Nonvolatile Random Access Memory Original Equipment Manufacturer Problem Isolation Charts Picture Element Power-On Reset Power-On Self Test Print Quality Enhancement Technology Raster Image Processor Read-Only Storage Static Random Access Memory Used Parts Replacement Volts alternating current Volts direct current
Paper Feed Operation · ·
Paper can be fed into the printer from the Multi-Purpose Tray (150 sheets) or from the Second Cassette Tray (Tray 1, 250 sheets). The Optional Third Cassette Unit (Tray 2 option, 250 sheets) adds another feeding method. Its structure is the same as that of the Second Cassette Tray.)
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Multi Purpose Tray When the paper take-up solenoid 1 (SL3) energizes, the transport motor (M2) drives the paper take-up roller via the paper take-up clutch. The paper take-up roller rotates one revolution. At the same time, the depressing cam rotates and releases the paper lift-up plate to feed the top sheet of paper. The paper is transported to the synchronizing roller section by the transport rollers. The transport rolls are mounted free on the shaft of the paper takeup roller and rotate independently of the paper take-up roller. The transport rolls rotate as the transport roller rotates. The fixed separating pad separates paper and prevents multiple paper feeds. The paper empty sensor 1 (PC5) detects paper in the multi-purpose tray.
General Information 1-3
Second Cassette (Tray 1) When paper take-up solenoid 2 (SL7) energizes it rotates the paper take-up roller which feeds the top sheet of paper. Paper empty sensor 2 (PC11) detects paper in the second cassette. Paper near empty sensor 1 (PC10) detects when the number of sheets of paper in the tray becomes less than 50. The combination of switches S1 and S2 on the 2nd paper size/cassette detecting board (PWB-E) detect the presence of the cassette and the size of paper in the cassette.
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Third Cassette Unit (Tray 2 Option) The third cassette is constructed in the same way as the second cassette.
General Information 1-5
Drum Cartridge Toner Full Detection
The drum cartridge toner full board (PWB-D1), on top of the image transfer belt assembly, determines when the PC drum waste toner box is full. Waste toner full is detected by an LED (LED1) and a photo-sensor (PT1) on the PWB-D1. Light from the LED (LED1) passes through the LED passing window, is reflected by a mirror in the drum cartridge, and then received by the photo sensor (PT1). The amount of this light determines whether the drum cartridge is nearly full or full.
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Synchronizing Rollers
The synchronizing rollers adjust any skewed paper transported from the paper take-up/feed section. The rollers match the leading edge of the image on the image transfer belt with the leading edge of the paper. The paper synchronizing sensor (PC1) detects when the leading edge of paper has reached the synchronizing rollers.
General Information 1-7
Paper Type Detection
The overhead projection (OHP) sheet detect board (PWB-D2), consisting of an LED (LED1) and a photo sensor (PT1), determines whether transparencies or plain paper is being fed through the machine.
When plain paper is feeding, the light from the LED reflects off the surface of the paper, and strikes PT1.
1-8
When a sheet of OHP transparencies is feeding, the light from the LED passes through and PT1 receives no light.
General Information 1-9
Development
Toner Empty / Toner Cartridge Detection
Toner Empty Detection Light from the toner empty detection LED (LED1) on the toner empty/toner cartridge detecting board (PWB-B) is reflected by a mirror in the toner cartridge and received by photo sensor (PT1). The amount of light received by the photo sensor determines whether the toner is empty or nearly empty.
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Toner Cartridge Detection Light from the toner cartridge detection LED (LED2) on the toner empty/toner cartridge detecting board (PWB-B) is reflected by the toner cartridge surface to the photo sensor (PT1). The toner cartridge is detected during warm up.
AIDC Sensor and Erase Lamp
Automatic Image Density Control (AIDC) The AIDC sensor detects the image density of the AIDC mark formed by toner on the PC Drum to determine proper charging bias and developing bias. The sensor is located on the AIDC/erase lamp board (PWB-C) on top of the image transfer belt. AIDC detection is accomplished with one LED (LED1) and two photo sensors (PT1, PT2).
General Information 1-11
AIDC detection is done for each Color Toner Cartridge after the developing rack position initializes.
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Erase Lamp Nineteen LEDs are placed in a row on the AIDC/Erase Lamp Board (PWB-C). Following developing, the surface of the PC Drum is exposed to light from these LEDs to neutralize negative the charge on the areas to which no toner has been attracted.
General Information 1-13
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2. Diagnostic Information
The diagnostic information in this chapter leads you to the failing part. Before you replace an entire assembly, determine if just the defective part is available in the parts catalog. Some diagnostic procedures indicate the parts catalog location of the part to be checked by including the assembly number and reference number in parenthesis. Some part numbers are also included. Use the error code tables, symptom table, service checks and the diagnostic aids chapter to determine the symptom and repair the failure. After you complete the repair, perform the appropriate tests to verify the repair. If an error is displayed, locate it in the following Operator Error Message Table, or the Service Error Message Table and take the appropriate action. If an error message appears while you are working on the machine, go to the error message table and take the indicated action. Use the Locations chapter to find connector, board, and pin information. The sequence given in the service check is connector, board, and pin. The board uses only a letter for an identifier. For example, connector CN8A-3; CN8 = connector, A = board, -3 = the pin.
Start
Initial Check
Before you start troubleshooting, check the following: Installation Environment
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The power supply line voltage is plus or minus 10% of the rated line voltage. The machine is securely installed on a level surface in a wellventilated place. The room temperature is between 10 and 32°C (50 and 90°F) and the relative humidity between 20 and 80%. Avoid sites generating ammonia gas, high temperature or high humidity (near water faucets, kettles, humidifiers), cold spaces, near open flames, and dusty areas.
Diagnostic Information 2-1
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Avoid sites exposed to direct sunlight.
Print Paper Checks Be sure the recommended paper for this printer is being used. Check the paper for dampness. Make a trial print with paper from a newly opened package, and check the result.
Operator Error Message Table
The operator panel messages are divided into three groups: Status, Attendance, and Service. Status messages give information about the current state of the printer. Attendance messages indicate printer errors that the operator must resolve. Service messages indicate printer problems that require servicing. Printer status is shown on the first line of the display. Additional information about printer status may be displayed on the second line of the display.
Status Messages
Line 1 on the display provides information about the printer, as shown in the following table. A long message requires line 2 to provide additional information about printer status.
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Line 1 Status Messages
Status Message Ready Action The printer is ready to receive and process data. · Press