Lexmark MX6500E Manuale utente

Lexmark 6500e and MX6500e

Machine Type 4036-310, -311

Service Manual

• Start diagnostics

• Maintenance

• Safety and notices

• Index

July 22, 2013 www.lexmark.com

P/N 12G0476

Product information

Product name:

Lexmark 6500e/MX6500e

Machine type:

4036

Model(s):

310, 311

Edition notice

July 22, 2013

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.

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 right 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.

Trademarks

Lexmark and Lexmark with diamond design are trademarks of Lexmark International, Inc., registered in the United States and/or other

countries.

PCL® is a registered trademark of the Hewlett-Packard Company.

All other trademarks are the property of their respective owners.

P/N 12G0476

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Table of contents

Product information.....................................................................................2

Edition notice...............................................................................................2

Notices and safety information....................................................................9

Safety information.....................................................................................................................................9

Preface.......................................................................................................13

Service manual conventions....................................................................................................................13

Change history.........................................................................................................................................13

General information...................................................................................15

Overview.................................................................................................................................................15

Understanding the ADF and scanner glass..............................................................................................15

Tools required for service........................................................................................................................16

Diagnostic information...............................................................................17

Power-On Self Test (POST) sequence......................................................................................................18

Symptom tables.......................................................................................................................................18

Error codes and messages.......................................................................................................................18

Paper jam error codes.............................................................................................................................19

Frequent paper jam, multifeed, or skew.................................................................................................20

False multifeed........................................................................................................................................21

The power does not come on..................................................................................................................22

ADF cover open.......................................................................................................................................23

ADF paper present..................................................................................................................................23

Image blank or distorted (ADF—back side of scanned page)..................................................................24

Image blank or distorted (ADF—front side of scanned page).................................................................25

Strange sound generated (ADF)..............................................................................................................26

Flatbed cover open..................................................................................................................................26

Image blank or distorted (flatbed)..........................................................................................................27

Strange sound generated (flatbed).........................................................................................................28

Flatbed scanner home position...............................................................................................................28

Voided line in scanned image (ADF or flatbed).......................................................................................29

900.xx system software error..................................................................................................................29

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Service menus............................................................................................35

Understanding the control panel and menus.........................................................................................35

Understanding the home screen ...................................................................................................................... 35

Using the touch-screen buttons..............................................................................................................36

Understanding the scanner control panel...............................................................................................39

Power On Reset (POR) sequence............................................................................................................40

Administrative menus.............................................................................................................................40

Accessing the service menus...................................................................................................................41

Configuration menu................................................................................................................................42

USB Scan to Local..............................................................................................................................................42

Print Quality Pages............................................................................................................................................ 42

Reports ............................................................................................................................................................. 42

SIZE SENSING ....................................................................................................................................................43

Panel Menus .....................................................................................................................................................43

PPDS Emulation ................................................................................................................................................ 43

Factory Defaults................................................................................................................................................43

Energy Conserve ...............................................................................................................................................43

Fax Low Power Support ....................................................................................................................................43

Min Copy Memory ............................................................................................................................................43

NumPad Job Assist............................................................................................................................................ 44

Format Fax Storage...........................................................................................................................................44

Fax Storage Location.........................................................................................................................................44

ADF Edge Erase .................................................................................................................................................44

FB Edge Erase....................................................................................................................................................44

Scanner Manual Registration............................................................................................................................ 44

Disable Scanner ................................................................................................................................................ 45

Paper prompts ..................................................................................................................................................45

Envelope prompts............................................................................................................................................. 45

Action for prompts............................................................................................................................................45

Jobs On Disk......................................................................................................................................................45

Disk Encryption .................................................................................................................................................45

Erase All Information on Disk............................................................................................................................45

Font Sharpening................................................................................................................................................46

Require Standby................................................................................................................................................46

UI Automation ..................................................................................................................................................46

Key Repeat Initial Delay .................................................................................................................................... 46

Key Repeat Rate................................................................................................................................................ 46

Clear Custom Status..........................................................................................................................................46

USB Speed......................................................................................................................................................... 46

USB PnP ............................................................................................................................................................46

Automatically Display Error Screens.................................................................................................................47

Exit Config Menu...............................................................................................................................................47

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Diagnostics mode menu..........................................................................................................................47

SCANNER CALIBRATION ....................................................................................................................................47

PRINT TESTS ......................................................................................................................................................47

HARDWARE TESTS ............................................................................................................................................48

DEVICE TESTS ....................................................................................................................................................51

Input Tray Tests ................................................................................................................................................51

PRINTER SETUP ................................................................................................................................................. 51

REPORTS ...........................................................................................................................................................53

EVENT LOG........................................................................................................................................................53

SCANNER TESTS ................................................................................................................................................ 53

EXIT DIAGNOSTICS ............................................................................................................................................ 54

Adjustments............................................................................................................................................55

Calibrating the scanner.....................................................................................................................................55

Calibrating the multifeed sensor ...................................................................................................................... 58

Repair information.....................................................................................59

Removal precautions...............................................................................................................................59

Handling ESD‑sensitive parts ............................................................................................................................ 59

Service guidelines .............................................................................................................................................59

Removal procedures...............................................................................................................................60

ADF and scanner removals......................................................................................................................60

Pick roller removal ............................................................................................................................................ 60

Separator pad removal .....................................................................................................................................65

Front control panel cover removal ................................................................................................................... 66

Left side control panel cover removal ..............................................................................................................67

Right side control panel cover removal ............................................................................................................69

User interface controller card (UICC) access cover removal ............................................................................ 71

Control panel assembly removal ......................................................................................................................72

UICC card removal ............................................................................................................................................74

Touch screen removal.......................................................................................................................................75

Main control panel cover with key buttons removal........................................................................................77

Control panel speaker removal.........................................................................................................................77

Flatbed document cover cushion removal .......................................................................................................79

Complete flatbed document cover removal.....................................................................................................81

Controller cage fans removal............................................................................................................................83

ADF top cover removal .....................................................................................................................................85

ADF latch handle removal.................................................................................................................................87

ADF output bin removal....................................................................................................................................88

Upper ADF scanner module removal................................................................................................................89

ADF entry idle roller removal............................................................................................................................91

Multifeed sensor removal.................................................................................................................................92

ADF paper present sensor removal .................................................................................................................. 98

ADF front and rear entry guides removal .........................................................................................................99

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Flatbed cover removal ....................................................................................................................................100

Flatbed scanner module removal ................................................................................................................... 103

Flatbed home position sensor removal .......................................................................................................... 106

Controller board removal ............................................................................................................................... 109

CPU cooling fan removal.................................................................................................................................112

Flatbed scanner cables removal ..................................................................................................................... 113

Power supply removal ....................................................................................................................................117

Engine board removal..................................................................................................................................... 120

Complete ADF scanner assembly removal......................................................................................................122

Power supply cooling fan removal.................................................................................................................. 126

ADF feed roller drive belts removal ................................................................................................................128

Lower ADF scanner module removal..............................................................................................................131

Feed roller motor removal.............................................................................................................................. 135

Pick roller motor removal ...............................................................................................................................136

Media sensor removal .................................................................................................................................... 138

Paper jam sensor removal .............................................................................................................................. 140

Feed rollers removal ....................................................................................................................................... 142

ADF cover open sensor removal ..................................................................................................................... 148

Connector locations.................................................................................153

Scanner mechanism overview and locations........................................................................................153

External view ..................................................................................................................................................153

Card reader view.............................................................................................................................................154

Cable locations................................................................................................................................................154

ADF Paper path ............................................................................................................................................... 155

Connections...........................................................................................................................................156

Scanner controller board connectors .............................................................................................................156

Engine board connectors ................................................................................................................................ 166

Power supply board connectors ..................................................................................................................... 170

Maintenance............................................................................................171

Safety inspection guide.........................................................................................................................171

Scheduled maintenance........................................................................................................................171

Preventive maintenance.......................................................................................................................171

Lubrication specification.......................................................................................................................172

Parts catalog............................................................................................174

Legend...................................................................................................................................................174

Assembly 1: Covers................................................................................................................................175

Assembly 2: Control panel and flatbed.................................................................................................177

Assembly 3: Automatic document feeder (ADF)...................................................................................179

Assembly 4: Electronics.........................................................................................................................181

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Appendix A: Acronyms.............................................................................183

Acronyms...............................................................................................................................................183

Index........................................................................................................184

Part number index...................................................................................187

Part name index.......................................................................................191

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Notices and safety information

Safety information

• The safety of this product is based on testing and approvals of the original design and specific components. The

manufacturer is not responsible for safety in the event of use of unauthorized 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.

CAUTION—POTENTIAL INJURY

The lithium battery in this product is not intended to be replaced. There is a danger of explosion if a lithium

battery is incorrectly replaced. Do not recharge, disassemble, or incinerate a lithium battery. Discard used

lithium batteries according to the manufacturer's instructions and local regulations.

Consignes de sécurité

• La sécurité de ce produit repose sur des tests et des agréations portant sur sa conception d'origine et sur des

composants particuliers. Le fabricant n'assume aucune responsabilité concernant la sécurité en cas d'utilisation de

pièces de rechange non agréées.

• 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.

AVERTISSEMENT—RISQUE DE BLESSURE

La batterie lithium de ce produit n'est pas destinée à être remplacée. Il existe un risque d'explosion si une

batterie lithium est placée de façon incorrecte. Ne rechargez pas, ne démontez pas et n’incinérez pas une

batterie lithium. Mettez les batteries lithium usagées au rebut selon les instructions du fabricant et les

réglementations locales.

Norme di sicurezza

• La sicurezza del prodotto si basa sui test e sull'approvazione del progetto originale e dei componenti specifici. Il

produttore non è responsabile per la sicurezza in caso di sostituzione non autorizzata delle parti.

• 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.

ATTENZIONE — PERICOLO DI LESIONI

La batteria al litio presente del prodotto non deve essere sostituita. In caso di sostituzione errata della

batteria al litio, potrebbe verificarsi un'esplosione. Non ricaricare, smontare o bruciare batterie al litio.

Smaltire le batterie al litio usate seguendo le istruzioni del produttore e le norme locali.

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Notices and safety information

9

Sicherheitshinweise

• Die Sicherheit dieses Produkts basiert auf Tests und Zulassungen des ursprünglichen Modells und bestimmter

Bauteile. Bei Verwendung nicht genehmigter Ersatzteile wird vom Hersteller keine Verantwortung oder Haftung

für die Sicherheit 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.

VORSICHT - VERLETZUNGSGEFAHR

Die Lithiumbatterie in diesem Produkt darf nicht ausgetauscht werden. Wird eine Lithiumbatterie nicht

ordnungsgemäß ausgetauscht, besteht Explosionsgefahr. Lithiumbatterien dürfen auf keinen Fall wieder

aufgeladen, auseinander genommen oder verbrannt werden. Befolgen Sie zum Entsorgen verbrauchter

Lithiumbatterien die Anweisungen des Herstellers und die örtlichen Bestimmungen.

Pautas de Seguridad

• La seguridad de este producto se basa en pruebas y aprobaciones del diseño original y componentes específicos.

El fabricante no es responsable de la seguridad en caso de uso de piezas de repuesto no autorizadas.

• 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.

PRECAUCIÓN: POSIBLES DAÑOS PERSONALES

La batería de litio de este producto no debe reemplazarse. Existe riesgo de explosión si se sustituye

incorrectamente una batería de litio. No recargue, desmonte ni incinere una batería de litio. Deseche las

baterías de litio según las instrucciones del fabricante y las normativas locales.

Informações de Segurança

• A segurança deste produto baseia-se em testes e aprovações do modelo original e de componentes específicos. O

fabricante não é responsável pela segunrança, no caso de uso de peças de substituição não autorizadas.

• 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.

ATENÇÃO — RISCO DE FERIMENTO

A bateria de lítio neste produto não deve ser substituída. Existe o risco de explosão se uma bateria de lítio

for substituída incorretamente. Não recarregue, desmonte ou incinere uma bateria de lítio. Descarte as

baterias de lítio usadas de acordo com as instruções do fabricante e regulamentos locais.

Informació de Seguretat

• La seguretat d'aquest producte es basa en l'avaluació i aprovació del disseny original i els components específics.

El fabricant no es fa responsable de les qüestions de seguretat si s'utilitzen peces de recanvi no autoritzades.

• La informació pel manteniment d’aquest producte està orientada exclusivament a professionals i no està destinada

a ningú que no ho sigui.

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Notices and safety information

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• 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.

ATENCIÓ

La bateria de liti d'aquest producte no ha estat dissenyada perquè es substitueixi. Hi ha perill d’explosió si

no es substitueix correctament la bateria de liti. No recarregueu, desmunteu o incinereu una bateria de

liti. Desfeu-vos de les bateries de liti usades d’acord amb les instruccions del fabricant i les regulacions

locals.

안전 사항

• 본 제품은 원래 설계및특정 구성에 대한 테스트 결과로 안정 성이 입증된 것입니다. 따라서 무허가 교체부품

을 사용하는 경 우 에는 제조업체에서 안전에 대한 책임을 지지 않습니다.

• 본 제품에 관한 유지 보수 설명 서는 전문 서비스 기술자 용으로 작성된 것이므로, 비 전문가는 사용할 수 없

습니다.

• 본 제품을 해체하거나 정비할 경우, 전 기전 인 충 경 을 받거나 상 처를 입을 위험이 커집니다. 전문 서비스

기술자는 이 사실을 숙지하고, 필요한 예방조치를 취하도록 하십시오.

주의—부상 위험

이 제품에 들어 있는 리튬 배터리는 교체할 수 없습니다. 리튬 배터리를 잘못 교체하면 폭발할 위험

이 있습니다. 리튬 배터리를 재충전하거나, 분해하거나, 태우지 마십시오. 제조업체의 지침과 지역

규정에 따라 다 쓴 리튬 배터리를 폐기하십시오.

安全信息

• 本产品的安全性以原来设计和特定产品的测试结果和认证为基础。万一使用来经许可的替换部件，制造商

不对安全性负责。

• 本产品的维护信息仅供专业服务人员使用，并不打算证其他人使用。

• 本产品在拆卸、维修时，遭受电击或人员受伤的危险性会增高，专业服务人员对这点必须有所了触，并采

取必要的预防措施。

当心一可能的伤害

：

本产品中的锂电池不可更换。如果不正确更换锂电池，可能会有爆炸危险。不要再充电、拆解或

焚烧锂电池。丢弃旧的锂电池时应按照制造商的指导及当地法规进行处理。

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Notices and safety information

11

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12

Preface

This manual contains maintenance procedures for service personnel.

It is divided into the following chapters:

• General information contains a general description of the printer. Special tools and test equipment are discussed.

• Diagnostic information contains diagnostic aids you can use to isolate failing field replaceable units. These

diagnostic aids include error code tables, symptom tables, and service checks.

• Service menus contains descriptions of the printer interface, the user and service menus, and the basic theory of

printer operation.

• Repair information provides instructions for making printer adjustments and removing and installing FRUs.

• Component locations uses illustrations to identify the connector locations.

• Maintenance contains the lubrication specifications and recommendations to prevent problems.

• Parts catalog contains illustrations and part numbers for individual FRUs.

Service manual conventions

Note: A note provides additional information.

Warning—Potential Damage: A warning identifies something that might damage the product hardware or software.

This service manual uses several different types of caution statements:

CAUTION—POTENTIAL INJURY: A caution identifies something that might cause the service technician harm.

CAUTION—SHOCK HAZARD: This type of caution indicates a danger from hazardous voltage in the area of the

product where you are working. Unplug the product before you start working, or use caution if the product

must receive power to perform the task.

CAUTION—HOT SURFACE: This type of caution indicates a hot surface.

CAUTION—TIPPING HAZARD: This type of caution indicates a tipping hazard.

Change history

July 22, 2013

• Fixed pre‑removal procedures in the Repair information chapter.

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Preface

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14

General information

Overview

The Lexmark

TM

6500e/MX6500e option is a multifunction solution that offers integrated print, copy, fax, and network-

scanning capabilities for large workgroups. The Lexmark 6500e/MX6500e option enables a user to make quick copies,

to change the settings on the touch screen to perform specific copy jobs, to send faxes to multiple fax destinations at

the same time, to scan documents to send to an e-mail address, computer, a USB flash memory drive, or FTP destination,

and to scan documents and send them to another printer (PDF by way of FTP). When the printer is converted into a

multifunction device, all printer messages will appear on the Lexmark 6500e/MX6500e option touch screen.

Understanding the ADF and scanner glass

Automatic Document Feeder (ADF) Scanner glass

Use the ADF for multiple pages, including duplex pages.

Note: You may also load business cards into the ADF.

Use the scanner glass for single pages or book pages, small items

(such as business cards, postcards, or photos), transparencies,

photo paper, or thin media such as magazine clippings.

Using the ADF

• Load letter‑ and A4‑size documents into the ADF facedown, long edge first.

• Load legal‑ and A3‑size documents into the ADF facedown, short edge first.

• Load up to 100 sheets of plain paper in the ADF input tray.

• Load up to 30 sheets of A3‑, tabloid, or 11 x 17 in. size plain paper.

• Scan sizes from 50.8 x 76.2 mm (2 x 3 in.) to 299.7 x 431.8 mm (11.8 x 17 in.).

• Scan documents with different paper sizes (letter and legal).

• Scan media weights of 52–120 g/m

2

(12–34 lb).

• Do not load postcards, photos, small items, transparencies, photo paper, or thin media (such as magazine clippings)

into the ADF. Place these items on the scanner glass.

Using the scanner glass

• Place a document facedown on the scanner glass in the lower left corner.

• Scan or copy documents up to 114 mm x 140 mm (4.5 x 5.5 in.) to 216 x 356 mm (8.5 x 11 in.).

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General information

15

• Copy books with the book spine on the lower right corner of the scanner glass.

Tools required for service

Flat-head screwdrivers, various sizes

#1 Phillips screwdriver, magnetic

#2 Phillips screwdriver, magnetic

#2 Phillips screwdriver, magnetic short-blade

Torx screwdrivers

Needle‑nose pliers

Diagonal side cutters

Spring hook

Feeler gauges

Analog or digital multimeter

Flashlight (optional)

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General information

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Diagnostic information

• “Power-On Self Test (POST) sequence” on page 18

• “Symptom tables” on page 18

• “Error codes and messages” on page 18

• “Paper jam error codes” on page 19

• “Frequent paper jam, multifeed, or skew” on page 20

• “False multifeed” on page 21

• “The power does not come on” on page 22

• “ADF cover open” on page 23

• “ADF paper present” on page 23

• “Image blank or distorted (ADF—back side of scanned page)” on page 24

• “Image blank or distorted (ADF—front side of scanned page)” on page 25

• “Strange sound generated (ADF)” on page 26

• “Flatbed cover open” on page 26

• “Image blank or distorted (flatbed)” on page 27

• “Strange sound generated (flatbed)” on page 28

• “Flatbed scanner home position” on page 28

• “Voided line in scanned image (ADF or flatbed)” on page 29

• “900.xx system software error” on page 29

CAUTION—SHOCK HAZARD: Remove the power cord from the electrical outlet before you connect or

disconnect any cable or electronic card or assembly for personal safety and to prevent damage to the printer.

Disconnect any connections between the printer and PCs/peripherals.

This chapter describes two methods to solve the operational problems. The first relies on the scanner internal

diagnostics to report error codes. The second uses troubleshooting techniques to isolate the problem. In many cases,

the internal error codes will help you to locate the source of the problem quickly. If no error codes are reported, or if

the error codes do not locate the source of the problem, refer to the Symptom Tables.

• If you have an error message or user message, check the following:

– “Error codes and messages” on page 18

– “Paper jam error codes” on page 19

– “900.xx system software error” on page 29

• Does the POR stop? Check the “Power-On Self Test (POST) sequence” on page 18.

• Do you have a symptom, rather than an error message? Check the “Symptom tables” on page 18.

• Additional information can be found at the following locations:

– “Understanding the home screen” on page 35

– “Accessing the service menus” on page 41

Note: There may be scanner error messages that are not contained in this service manual. Call your next level of

support for assistance.

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Diagnostic information

17

Power-On Self Test (POST) sequence

When you turn the printer and scanner on, it performs a Power-On Self Test. Check for correct POST functioning by

observing the following:

1 The printer LED (green light) turns on.

2 The control panel turns on.

3 The control panel displays counting the memory.

4 The control panel displays a progression bar with the Lexmark splash logo.

5 You can hear the scanner doing a scanner calibration.

6 You can hear the printer starting up. It takes the printer longer to start up from a cold start rather than from a warm

start.

Symptom tables

The tables in this section provide detailed troubleshooting information.

Frequent paper jam, multifeed, or skew See “Frequent paper jam, multifeed, or skew” on page 20.

False multifeed See “False multifeed” on page 21.

The power does not come on, or communication lost See “The power does not come on” on page 22.

Voided line in scanned image (ADF or flatbed) See “Voided line in scanned image (ADF or flatbed)” on page

29.

Image blank or distorted (flatbed) See “Image blank or distorted (flatbed)” on page 27.

Image blank or distorted (ADF—front side of scanned

page)

See “Image blank or distorted (ADF—front side of scanned page)”

on page 25.

Image blank or distorted (ADF—back side of scanned

page)

See “Image blank or distorted (ADF—back side of scanned page)”

on page 24.

Strange sound generated (ADF) See “Strange sound generated (ADF)” on page 26.

Strange sound generated (flatbed) See “Strange sound generated (flatbed)” on page 28.

Error codes and messages

Note: For information on error codes 910-999, refer to the printer’s service manual.

Error code Description Action

840.01 The scanner has been manually

disabled.

Enter the configuration menu to re-enable the

scanner.

840.02 The scanner has automatically

been disabled by the controller.

Enter the configuration menu to re-enable the

scanner.

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Diagnostic information

18

Error code Description Action

841.XX The scanner image ASIC has failed.

1 Check all connections on the scanner engine

board.

2 Replace the scanner engine board assembly

if problem remains. See “Engine board

removal” on page 120.

3 Replace the controller board. See “Controller

board removal” on page 109.

842.XX The controller board has lost

communication with the scanner

engine board.

1 Check all connections on the scanner engine

board.

2 Replace the scanner engine board assembly

if problem remains. See “Engine board

removal” on page 120.

3 Replace the controller board. See “Controller

board removal” on page 109.

843.XX The scanner carriage home position

detection failed.

1 Turn the machine off/on.

2 See the home position service check.

845.02 Lower scanner module cable has

failed.

Replace the lower scanner module cable.

845.03 Upper scanner module cable has

failed.

Replace the upper scanner module cable.

900.00-900.99

(except for 900.05)

An unrecoverable controller board

software error occurred while an

unknown process was running.

See “900.xx system software error” on page

29.

955.XX The Code ROM or NAND flash failed

the Cyclic Redundancy Check (CRC),

or the NAND experienced an

uncorrectable multibit failure.

Replace the controller board. See “Controller

board removal” on page 109.

Paper jam error codes

Note: For information on error codes 200-279, refer to the printer’s service manual.

Error code Description Action

280.06 Paper is missing from the ADF input

tray when the scanner expected to

see it.

See “ADF paper present” on page 23.

282.05 Paper reached the media sensor

but is late leaving or does not clear

it within the specified time.

See “Frequent paper jam, multifeed, or skew” on

page 20.

283.01 Paper remains on the media sensor

during the warm-up sequence or at

POR.

See “Frequent paper jam, multifeed, or skew” on

page 20.

283.03 Paper does not reach or is late

arriving at the media sensor within

the specified time.

See “Frequent paper jam, multifeed, or skew” on

page 20.

4036

Diagnostic information

19

Error code Description Action

290.02 The ADF cover was opened while

the ADF was operating.

See “ADF cover open” on page 23.

292.01 This is caused by the flatbed

scanner module being locked

during POR.

See “Flatbed scanner home position” on

page 28.

295.20 The multifeed sensor detected

more than one page in the ADF

paper path at a time.

See “False multifeed” on page 21.

Frequent paper jam, multifeed, or skew

Action Yes No

Step 1

Is the paper correctly set in the tray?

Go to step 2. Properly position the

paper in the ADF.

Step 2

Is the specified paper used?

Go to step 3. Use the correct media.

Step 3

Is there a foreign object or paper debris in the ADF paper path?

Clear the debris. Also

check the media sensor

and mirror for paper

dust and debris.

Go to step 4.

Step 4

Is the separator pad dirty, damaged, or worn?

Clean the separator

pad. Replace if the

problem remains. See

“Separator pad

removal” on page

65.

Go to step 5.

Step 5

Is the pick roller dirty, damaged, or worn?

Clean pick roller.

Replace if the problem

remains. See “Pick

roller removal” on

page 60.

Go to step 6.

Step 6

Are the feed rollers dirty, damaged, or worn?

Clean feed rollers.

Replace if the problem

remains. See “Feed

rollers removal” on

page 142.

Go to step 7.

4036

Diagnostic information

20

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