Lexmark Optra SC 1275 Manual de usuario

5040-001

Lexmark Optra™ SC 1275

Lexmark and Lexmark with diamond

design are trademarks of Lexmark

International, Inc., registered in the

United States and/or other countries.

• Table of Contents

• Index

• Safety and Notices

• Trademarks

• Start Diagnostics

• Manuals Menu

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.

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.

iii Service Manual

Contents

NoticesandSafetyInformation..........................viii

LaserNotice....................................... viii

LaserAdvisoryLabel..............................ix

Class 1 Laser Statement Label ......................ix

GeneralInformation ..................................1-1

Maintenance Approach ............................. 1-1

Tools ........................................... 1-1

Abbreviations..................................... 1-2

Paper Feed Operation .............................. 1-2

Drum Cartridge Toner Full Detection. ............... 1-6

SynchronizingRollers........................... 1-7

Paper Type Detection . . . ........................ 1-8

Development.................................... 1-10

TonerEmpty/TonerCartridgeDetection........... 1-10

AIDCSensorandEraseLamp ................... 1-11

DiagnosticInformation ................................2-1

Start............................................ 2-1

InitialCheck................................... 2-1

OperatorErrorMessageTable.................... 2-2

StatusMessages............................... 2-2

Line1StatusMessages......................... 2-3

Line2Messages.............................. 2-10

Supplies Status Messages ...................... 2-11

Attendance Messages. . . ....................... 2-11

ServiceErrorMessageTable.................... 2-26

SymptomTable............................... 2-29

ServiceChecks.................................. 2-33

FuserServiceCheck........................... 2-33

DevelopingMotorServiceCheck................. 2-34

TransportMotorServiceCheck................... 2-34

ImageTransferBeltServiceCheck................ 2-35

Paper Jam Service Check....................... 2-35

TonerCartridgeRackServiceCheck.............. 2-38

Printhead Cooling Fan Service Check.............. 2-39

Power Supply Cooling Fan Motor Service Check ..... 2-39

SuctionFanMotorServiceCheck................. 2-39

ACPowerServiceCheck....................... 2-40

MarksonPaperServiceCheck................... 2-41

Image Quality Troubleshooting ................... 2-42

SensorServiceCheck.......................... 2-47

Diagnostic Aids. .................................. 2-48

BasicPrinterPaperPassageTest................. 2-48

OperatorMenuDisabled........................ 2-48

Diagnostic Mode............................... 2-48

Diagnostic Menu Group ......................... 2-48

SettingPrinterRegistration ...................... 2-50

PrintTests................................... 2-50

Quality Pages................................. 2-51

CleanEngineTest............................. 2-51

LCDHardwareTest............................ 2-51

ButtonTest................................... 2-51

DRAMMemoryTest............................ 2-51

ROMMemoryTest............................. 2-52

ParallelWrapTest............................. 2-53

SerialWrapTests.............................. 2-54

Input Tray Sensor Test. ......................... 2-55

SizeSensingSensorTest....................... 2-55

BaseSensorTest.............................. 2-56

QuickDiskCheck.............................. 2-57

DISKTest/Clean............................... 2-57

FlashTest.................................... 2-58

Setting the Page Count ......................... 2-58

Viewing the Permanent Page Count ............... 2-58

ViewingtheErrorLog........................... 2-58

ClearingtheErrorLog.......................... 2-59

ExitingDiagnosticMode......................... 2-59

PrintQualityTestPage ......................... 2-60

PrintQualityTestPage ......................... 2-61

RepairInformation ....................................3-1

PrecautionsforDisassemblyandCleaning........... 3-1

Instructions for Handling the PWBs with MOS ICs...... 3-1

Precautions for Handling the Drum Cartridge . ........ 3-2

Partsnottobetouched.......................... 3-2

Precautions for Handling the Laser Equipment ........ 3-3

Adjustment Procedures . . . .......................... 3-3

RegistrationAdjustment.......................... 3-3

RackLeverSolenoidAdjustment................... 3-5

RemovalProcedures ............................... 3-5

OuterCoverRemovals........................... 3-5

ImageTransferRollerRemoval.................... 3-6

DrumCartridgeRemoval......................... 3-6

v Service Manual

Waste Toner Bottle Removal...................... 3-7

ImageTransferBeltRemoval..................... 3-7

FuserRemoval................................ 3-8

OilCoatingRollerRemoval....................... 3-9

HeaterLampRemoval.......................... 3-10

Printhead Removal ............................ 3-11

Paper Exit Removal............................ 3-12

High Voltage (HV1) / Sub High Voltage Board (PWB-F)

Removal .................................... 3-12

ShieldPlateRemoval.......................... 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

TonerCartridgeRackRemoval................... 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

SuctionAssemblyRemoval...................... 3-25

SuctionFanMotorRemoval..................... 3-27

Locations ...........................................4-1

PartsofthePrinter................................. 4-1

PartsofthePrinter.............................. 4-2

PrintingProcess ............................... 4-6

SwitchesandSensors........................... 4-7

GearsandRollers............................. 4-10

Electrical Components. . . ....................... 4-12

Connectors . . ................................ 4-18

PrintedCircuitBoards.......................... 4-19

PartsCatalog ........................................5-1

HowtoUseThisPartsCatalog....................... 5-1

Housing.......................................5-2

Frames1......................................5-6

Frames2.....................................5-10

Drive........................................5-14

Paper Take-Up 1...............................5-18

Paper Take-Up 2...............................5-22

ImageTransferBelt.............................5-24

ImageTransferBelt.............................5-26

TransferRoller.................................5-28

Paper Transport ................................5-32

Rack.........................................5-34

Fuser1.......................................5-38

Fuser2.......................................5-40

Fuser/Exit.....................................5-42

Exit..........................................5-44

ElectricalParts.................................5-46

SecondCassette(Tray1) ........................5-50

ThirdCassette(Tray2) ..........................5-54

Paper Tray . ...................................5-56

ControllerCard.................................5-58

Index................................................X1

vii Service Manual

Notices and Safety Information viii

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, pro-

gram, 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 else-

where 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.

ix Service Manual

Laser Advisory Label

Label is inside printerl

Class 1 Laser Statement Label

Label is on back of printer.

Notices and Safety Information x

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.

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