Lexmark MX6500E Manuale utente

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Multifunzionali
Tipo
Manuale utente

Questo manuale è adatto anche per

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.
© 2013 Lexmark International, Inc.
All rights reserved.
P/N 12G0476
4036
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 ESDsensitive 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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8
Notices and safety information
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 batea 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
10
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
제품은 원래 설계및특정 구성에 대한 테스 결과로 안정 성이 입증된 것입니다. 따라 무허가 교체부품
사용하는 에는 제조업체에서 안전에 대한 책임을 지지 않습니다.
제품에 관한 유지 보수 설명 서는 전문 서비스 기술자 용으로 작성된 것이므로, 전문가는 사용할
습니다.
제품을 해체하거나 정비할 경우, 기전 받거나 처를 입을 위험이 커집니다. 전문 서비스
기술자는 사실 숙지하고, 필요한 예방조치를 취하도록 하십시오.
주의부상 위험
제품에 들어 있는 리튬 배터리는 교체할 없습니다. 리튬 배터리를 잘못 교체하면 폭발 위험
있습니다. 리튬 배터리를 재충전하거나, 분해하거나, 태우지 마십시오. 제조업체의 지침과 지역
규정에 따라 리튬 배터리를 폐기하십시오.
安全信息
品的安全性以原来设计和特定品的测试结果和认证为。万一使用经许可的替部件,制造商
安全性负责
品的维护信息专业使用,并不打算其他人使用。
品在拆卸、,遭受电击或人的危性会增高,专业员对这点必有所了触,并采
取必要的防措施。
当心一可能的
品中的锂电池不可更。如果不正确换锂电池,可能会有爆炸危。不要再 、拆解或
烧锂电池。弃旧的锂电时应按照制造商的指当地法规进理。
4036
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 preremoval procedures in the Repair information chapter.
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Preface
13
4036
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 A4size documents into the ADF facedown, long edge first.
Load legal and A3size 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
Needlenose pliers
Diagonal side cutters
Spring hook
Feeler gauges
Analog or digital multimeter
Flashlight (optional)
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General information
16
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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