LEXMARK C91x Service Manual
Lexmark C91x
• Table of Contents
• Start Diagnostics
• Safety and Notices
• Trademarks
5055-xxx
•Index
Lexmark and Lexmark with diamond
design are trademarks of Lexmark
International, Inc., registered in the
United States and/or other countries.
5055-xxx
Edition: June 2004
The following paragraph does not apply to any country where such provisions are
inconsiste nt with local law: LEXMARK INTERNATIONAL, INC. PROVIDES THIS
PUBLICATION “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPR E SS O R
IMPLIED, INCLUDING, BUT NOT LI MITED 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.
Comments may be addressed to Lexmark International, Inc., Department D22A/032-2,
740 West New Circle Road, Lexington, Kentucky 40550, U.S.A or electronically mailed
(e-mail) to ServiceInfoAndTraining@Lexmark.com. Lexmark may use or distribute any of
the information you supply in any way it believes appropriate without incurring any
obligation to you. You can purchase additional copies of publications related to this
product by calling 1-800-553-9727. In other countries, contact your point of purchase.
Lexmark and Lexmark with diamond design are trademarks of Lexmark International,
Inc., registered in the United States and/or other countries.
ImageQuick, Optra Forms, and PrintCryption are trademarks of Lexmark International,
Inc.
PCL® is a registered trademark of the Hewlett-Packard Company.
PostScript® is a registered trademark of Adobe Systems Incorporated.
Other trademarks are the property of their respective owners.
© 2003, 2004 Lexmark International, Inc.
All rights reserved.
UNITED STATES GOVERNMENT RIGHTS
This software and any accompanying documentation provided under this agreement are
commercial computer software and documentation developed exclusively at private
expense.
P/N 12G9292
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Contents
Safety information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvi
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-xvi
General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Resolution. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Model differences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Technical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Toner darkness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Color correction settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Physical specifications and weight . . . . . . . . . . . . . . . . . . . . . 1-3
Print speed and performance . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Time to first print . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Processor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Duty cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Printer memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Resident fonts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
Paper and media specifications . . . . . . . . . . . . . . . . . . . . . . . 1-8
Input and output configurations. . . . . . . . . . . . . . . . . . . . . . . . 1-8
Media size supported . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
Input media types and weights . . . . . . . . . . . . . . . . . . . . . . . 1-15
Output media types and weights. . . . . . . . . . . . . . . . . . . . . . 1-16
Input capacity by media and source . . . . . . . . . . . . . . . . . . . 1-18
Output capacity by media and source. . . . . . . . . . . . . . . . . . 1-19
Media guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20
Print area. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21
Options and features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22
Connectivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-23
Standard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-23
Optional internal local connections . . . . . . . . . . . . . . . . . . . . 1-23
Network connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24
Data streams. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25
Operating systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25
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Power and electrical specifications . . . . . . . . . . . . . . . . . . . .1-26
Power requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-26
Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-26
Operating clearances. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-27
Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-27
Printer temperature and humidity. . . . . . . . . . . . . . . . . . . . . .1-27
Maintenance approach . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-29
Standard inspection and cleaning procedure. . . . . . . . . . . . .1-29
Return parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-30
Service recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . .1-30
Tools. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-31
Serial number, configuration ID, and part number . . . . . . . . .1-32
Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-33
Diagnostic information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1
Adjustments and procedures following parts replacement. . . .2-1
Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3
Initial check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3
Printer messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4
Service error message tables. . . . . . . . . . . . . . . . . . . . . . . . . .2-4
Attendance messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-34
Maintenance analysis procedures (MAPS) . . . . . . . . . . . . . .2-54
Symptom table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-63
Service checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-68
Drive 1 DC motor service check. . . . . . . . . . . . . . . . . . . . . . .2-68
Drive 2 stepper motor service check . . . . . . . . . . . . . . . . . . .2-68
Duplex unit service check. . . . . . . . . . . . . . . . . . . . . . . . . . . .2-69
Expansion paper feed service check . . . . . . . . . . . . . . . . . . .2-69
Face down stacker full service check. . . . . . . . . . . . . . . . . . .2-70
High-capacity feeder (HCF) service check. . . . . . . . . . . . . . .2-70
Finisher service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-71
Marks on paper service check . . . . . . . . . . . . . . . . . . . . . . . .2-72
Operator panel service check. . . . . . . . . . . . . . . . . . . . . . . . .2-73
Paper carrying service check . . . . . . . . . . . . . . . . . . . . . . . . .2-74
Paper exit, face up service check. . . . . . . . . . . . . . . . . . . . . .2-82
Paper skew service check . . . . . . . . . . . . . . . . . . . . . . . . . . .2-83
Paper tray missing service check. . . . . . . . . . . . . . . . . . . . . .2-83
Photodeveloper missing service check . . . . . . . . . . . . . . . . .2-84
Power supply service check . . . . . . . . . . . . . . . . . . . . . . . . .2-85
210 Staple jam service check. . . . . . . . . . . . . . . . . . . . . . . . .2-86
Transfer belt up/down service check . . . . . . . . . . . . . . . . . . .2-87
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Image quality troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . 2-88
Print quality problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-88
Options service check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-98
Diagnostic aids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Power-On Self Test sequence . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Using the operator panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Operator panel buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Printing the menu settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Operator menu disabled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Menu overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Diagnostic Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
Adjustment example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
Print tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
Hardware tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
High-capacity feeder tests. . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18
Finisher tests. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20
Device tests. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-23
Diagnostics - printer setup . . . . . . . . . . . . . . . . . . . . . . . . . . 3-26
Defaults. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-26
Viewing and resetting the drum counters . . . . . . . . . . . . . . . 3-28
Diagnostics - error log. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-31
Theory of operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-33
Processes and configuration. . . . . . . . . . . . . . . . . . . . . . . . . 3-33
Electrophotography process . . . . . . . . . . . . . . . . . . . . . . . . . 3-33
Development unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-34
Transfer unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-34
Cleaning unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-35
Paper feeding / fusing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-35
Drive system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-36
Paper feeding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-37
Cassette paper feeder. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-37
Multipurpose feeding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-38
Registration unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-38
Separation unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-39
Fuser unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-40
Delivery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-41
Belt unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-42
Belt up/down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-43
Expansion paper feeder . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-43
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Duplex unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-44
Paper weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-45
Clearing paper jams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-46
High-capacity feeder (HCF) . . . . . . . . . . . . . . . . . . . . . . . . . .3-52
Maintenance Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-60
Finisher. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-61
Finisher installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-73
Attaching the docking plate and guide rail . . . . . . . . . . . . . . .3-73
Combining the finisher and stand. . . . . . . . . . . . . . . . . . . . . .3-75
Attaching the bins. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-79
Aligning the finisher and printer . . . . . . . . . . . . . . . . . . . . . . .3-80
Adjusting the wheels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-88
Attaching the cables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-90
Hole punch adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-94
Repair information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1
Service precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1
Handling printed circuit boards. . . . . . . . . . . . . . . . . . . . . . . . .4-1
Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3
High-capacity paper feed timing belt adjustment . . . . . . . . . . .4-3
Removals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-4
Cover, top removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-4
Cover, front removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-5
Cover, front left removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-5
Cover, rear removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-6
Cover, solenoid removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-6
Cover, left side removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-7
Cover, right side removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-8
Cover, RIP board removal . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-9
Tray, paper exit removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-10
Belt up/down clutch removal . . . . . . . . . . . . . . . . . . . . . . . . .4-10
Belt up/down detection sensor removal . . . . . . . . . . . . . . . . .4-11
Cassette guide removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-12
Connector, duplex unit removal . . . . . . . . . . . . . . . . . . . . . . .4-13
Separation fingers removal . . . . . . . . . . . . . . . . . . . . . . . . . .4-14
Sensor cleaner removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-14
Drive gear unit sensor assembly removal . . . . . . . . . . . . . . .4-15
Drive motor assembly removal. . . . . . . . . . . . . . . . . . . . . . . .4-16
Electronic box removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-17
Fanning pad removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-19
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Front cover open switch actuator removal . . . . . . . . . . . . . . 4-20
Fuser removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-21
High voltage power supply board (HVU) removal. . . . . . . . . 4-23
LED printhead removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-24
Eraser removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-27
Lock handle assembly removal. . . . . . . . . . . . . . . . . . . . . . . 4-28
Main drive unit removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-29
Main unit fan removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-32
Motor drive board removal . . . . . . . . . . . . . . . . . . . . . . . . . . 4-33
Multipurpose feeder paper present sensor removal . . . . . . . 4-33
Multipurpose feeder tray removal . . . . . . . . . . . . . . . . . . . . . 4-34
Operator panel removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-34
Paper carrying frame removal. . . . . . . . . . . . . . . . . . . . . . . . 4-35
Paper carrying roller removal . . . . . . . . . . . . . . . . . . . . . . . . 4-36
Paper feed frame removal. . . . . . . . . . . . . . . . . . . . . . . . . . . 4-37
Paper feed roller removal . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-38
Paper pres ent sensor removal . . . . . . . . . . . . . . . . . . . . . . . 4-38
Paper remaining sensor removal . . . . . . . . . . . . . . . . . . . . . 4-39
Paper size sensor board assembly removal. . . . . . . . . . . . . 4-39
Power supply 1 removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-40
Power supply 2 removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-41
Power switch removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-42
Printer controller removal . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-43
Printhead controller board removal. . . . . . . . . . . . . . . . . . . . 4-44
Registration sensor removal . . . . . . . . . . . . . . . . . . . . . . . . . 4-48
Right slide rail removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-49
RIP box removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-49
Sensor board removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-50
Stay arm removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-51
Sub-frame removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-52
Sub frame F1, sub frame F2 removal . . . . . . . . . . . . . . . . . . 4-53
Top unit removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-55
Transfer belt removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-56
Turn guide cover sensor removal . . . . . . . . . . . . . . . . . . . . . 4-65
Upper fan removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-66
Options removals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-67
Expansion paper feeder removal . . . . . . . . . . . . . . . . . . . . . 4-67
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Duplex removals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-75
Duplex unit separation removal . . . . . . . . . . . . . . . . . . . . . . .4-75
Duplex unit removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-76
Duplex timing belt removal. . . . . . . . . . . . . . . . . . . . . . . . . . .4-76
Duplex pressure roller and solenoid removal. . . . . . . . . . . . .4-77
Duplex feed roller and solenoid removal . . . . . . . . . . . . . . . .4-78
Duplex side fence motor assembly/side fence removal . . . . .4-79
Duplex paper carrying motor removal . . . . . . . . . . . . . . . . . .4-80
High-capacity feeder (HCF) removals . . . . . . . . . . . . . . . . . .4-81
HCF covers removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-81
HCF call roller, paper feed roller, reverse roller removal . . . .4-82
HCF pickup solenoid removal . . . . . . . . . . . . . . . . . . . . . . . .4-83
HCF tray motor removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-86
HCF paper level sensor removal . . . . . . . . . . . . . . . . . . . . . .4-87
HCF power supply removal . . . . . . . . . . . . . . . . . . . . . . . . . .4-88
Finisher removals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-89
External covers removals. . . . . . . . . . . . . . . . . . . . . . . . . . . .4-89
Finisher control board removal. . . . . . . . . . . . . . . . . . . . . . . .4-90
Elevator motor removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-91
Feed motor assembly removal. . . . . . . . . . . . . . . . . . . . . . . .4-91
Hole punch removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-92
Inverter paper exit discharge brus h rem ova l . . . . . . . . . . . . .4-93
Inverter paper exit roller removal . . . . . . . . . . . . . . . . . . . . . .4-93
Jogging unit removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-95
Path select gate removal . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-96
Patting roller removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-97
Power supply removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-99
Registration roller removal . . . . . . . . . . . . . . . . . . . . . . . . . .4-100
Registration roller clutch removal. . . . . . . . . . . . . . . . . . . . .4-101
Stack area discharge brush removal . . . . . . . . . . . . . . . . . .4-102
Staple unit removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-102
Straight paper exit discharge brush removal . . . . . . . . . . . .4-103
Straight paper exit roller removal . . . . . . . . . . . . . . . . . . . . .4-103
Timing belts 1 and 2 removal . . . . . . . . . . . . . . . . . . . . . . . .4-105
Tractor belt removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-106
Tractor drive motor assembl y remov al. . . . . . . . . . . . . . . . .4-108
viii Service Manual
5055-xxx
Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Covers diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Major parts diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Sensor and switch locations . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Component locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
Printer controller board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
Printer controller board connectors. . . . . . . . . . . . . . . . . . . . . 5-9
Printhead controller board. . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12
RIP board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13
Power source unit 1 board . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14
Power source unit 2 board . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14
High voltage power supply board . . . . . . . . . . . . . . . . . . . . . 5-15
Sensor board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-15
Expansion paper feeder controller board . . . . . . . . . . . . . . . 5-16
Duplex unit controller board . . . . . . . . . . . . . . . . . . . . . . . . . 5-16
Motor drive board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-16
Size sensor board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-17
High-capacity feeder (HCF) . . . . . . . . . . . . . . . . . . . . . . . . . 5-18
High-capacity paper feed configuration. . . . . . . . . . . . . . . . . 5-18
Electrical parts layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-19
Driving parts layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-20
Finisher locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-21
Preventive maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Maintenance kit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Periodic maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Lubricants and cleaners . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Parts catalog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
How to use this parts catalog . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
Assembly 1: Covers 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2
Assembly 2: Covers 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4
Assembly 3: Covers 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6
Assembly 4: Covers 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8
Assembly 5: Covers 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-10
Assembly 6: Upper unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-12
Assembly 7: Base 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-16
Assembly 8: Base 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-18
Assembly 9: Base 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-20
ix
5055-xxx
Assembly 10: Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-22
Assembly 11: Rip board. . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-26
Assembly 12: Fuse r unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-28
Assembly 13: Cassette. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-30
Assembly 14: Expansion feeder 1 . . . . . . . . . . . . . . . . . . . . .7-32
Assembly 15: Expansion feeder 2 . . . . . . . . . . . . . . . . . . . . .7-34
Assembly 16: Duplex unit 1 . . . . . . . . . . . . . . . . . . . . . . . . . .7-38
Assembly 17: Duplex unit 2 . . . . . . . . . . . . . . . . . . . . . . . . . .7-40
Assembly 18: High-capacity feeder 1. . . . . . . . . . . . . . . . . . .7-42
Assembly 19: High-capacity feeder 2. . . . . . . . . . . . . . . . . . .7-44
Assembly 20: High-capacity feeder 3. . . . . . . . . . . . . . . . . . .7-46
Assembly 21: High-capacity feeder 4. . . . . . . . . . . . . . . . . . .7-48
Assembly 22: High-capacity feeder 5. . . . . . . . . . . . . . . . . . .7-50
Assembly 23: High-capacity feeder 6. . . . . . . . . . . . . . . . . . .7-52
Assembly 24: Finisher covers . . . . . . . . . . . . . . . . . . . . . . . .7-54
Assembly 25: Finisher frame . . . . . . . . . . . . . . . . . . . . . . . . .7-56
Assembly 26: Finisher feed 1. . . . . . . . . . . . . . . . . . . . . . . . .7-58
Assembly 27: Finisher feed 2 . . . . . . . . . . . . . . . . . . . . . . . .7-62
Assembly 28: Finisher elevator . . . . . . . . . . . . . . . . . . . . . . .7-64
Assembly 29: Finisher electronics . . . . . . . . . . . . . . . . . . . . .7-66
Assembly 30: Finisher docking 1 . . . . . . . . . . . . . . . . . . . . . .7-68
Assembly 31: Finisher docking 2 . . . . . . . . . . . . . . . . . . . . . .7-70
Assembly 32: Miscellaneous/options . . . . . . . . . . . . . . . . . . .7-72
Assembly 33: Finisher parts packet
P/N 56P9480 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-81
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-1
Part number index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-9
x Service Manual
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
necessar y pr ec autions.
• CAUTION: When you see this symbol, there is a
danger from hazardous voltage in the area of the
product where you are working. Unplug the product
before you begin, or use caution if the product must
receive power in order to perform the task.
Consignes de sécurité
5055-xxx
• 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.
• ATTENTION : Ce symbole indique la présence
d'une tension dangereuse dans la partie du produit
sur laquelle vous travaillez. Débranchez le produit
avant de commencer ou faites preuve de vigilance si
l'exécution de la tâche exige que le produit reste sous
tension.
Safety information xi
5055-xxx
Norme di sicurezza
• La sicurezza d el 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: Questo simbolo indica la presenza
di tensione pericolosa nell'area del prodotto.
Scollegare il prodotto prima di iniziare o usare
cautela se il prodotto deve essere alimentato per
eseguire l'intervento.
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 V orsichtsmaßnahmen
treffen.
• ACHTUNG: Dieses Symbol weist auf eine
gefährliche elektrische Spannung hin, die in diesem
Bereich des Produkts auftreten kann. Ziehen Sie vor
den Arbeiten am Gerät den Netzstecker des Geräts,
bzw. arbeiten Sie mit großer Vorsicht, wenn das
Produkt für die Ausführung der Arbeiten an den
Strom angeschlossen sein muß.
xii Service Manual
Pautas de Seguridad
• La seguridad de este producto se basa en pruebas y
aprobaciones del dise ño 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: este símbolo indica que el voltaje
de la parte del equipo con la que está trabajando es
peligroso. Antes de empezar, desenchufe el equipo
o tenga cuidado si, para trabajar con él, debe
conectarlo.
Informações de Segurança
5055-xxx
• 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 profissio nai s 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.
• CUIDADO: Quando vir este símbolo, existe a
possível pr esença de uma potencial tensão perigosa
na zona do produto em que está a trabalhar. Antes
de começar, desligue o produto da tomada eléctrica
ou seja cuidadoso caso o produto tenha de estar
ligado à corrente eléctrica para realizar a tarefa
necessária.
Safety information xiii
5055-xxx
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.
• El risc de xoc elèctric i de danys personals pot augmentar
durant el procés de desmuntatge i de se rv e i d’aquest producte.
El personal professional ha d’estar-ne assabentat i prendre
les mesures convenients.
• PRECAUCIÓ: aquest símbol indica que el voltatge
de la part de l'equip amb la qual esteu treballant és
perillós. Abans de començar, desendolleu l'equip
o extremeu les precaucions si, per treballar amb
l'equip, l'heu de connectar.
xiv Service Manual
5055-xxx
Safety information xv
5055-xxx
Preface
This manual contains maintenance procedures for service
personnel. It is divided into the following chapters:
1. General information contains a general description of the
printer and the maintenance approach used to repair it. Special
tools and test equipment are listed, as well as general
environmental and safety instructions.
2. Diagnostic information contains an error indicator table,
symptom tables, and service checks used to isolate failing field
replaceable units (FRUs).
3. Diagnostic aids contains tests and checks used to locate or
repeat symptoms of printer problems.
4. Repair information provides instructions for making printer
adjustments and removing and installing FRUs.
5. Connector locations uses illustrations to identify the connector
locations and test points on the printer.
6. Preventive maintenance contains the lubrication specifications
and recommendations to prevent problems.
7. Parts catalog contains illustrations and part numbers for
individual FRUs.
Definitions
Note: A note provides additional information.
Warning: A warning identifies something that might damage the
product hardware or software.
CAUTION: A caution identifies something that might cause a
servicer harm.
CAUTION: When you see this symbol, there is a
danger from hazardous voltage in the area of the
product where you are working. Unplug the product
before you begin, or use caution if the product must
receive power in order to perform the task.
xvi Service Manual
5055-xxx
1. General information
Overview
The Lexmark™ C91x printers are high-speed, wide-format color
LED Electrophotographic color printers with superior print quality for
high-volume printing.
Resolution
• 600 x 600 dpi
• 2400 image quality
Model differences
C912
5055-230
28/29 ppm engine X X X X X
USB/parallel X X
USB/Ethernet X X X
Memory (MB) 256 256 128 64 64
Options available
550-sheet drawer X X X
Duplex X X
Hard disk X X
Staple and punch
finisher w/stand
Printer cabinet X X
XX
C912
5055-210
C912
5055-200
C910
5055-01N
5055-010
C910
General information 1-1
5055-xxx
Technical specifications
Toner darkness
Toner darkness settings offer four user-selectable settings to
balance print darkness and toner savings. The higher the setting,
the darker the print. The toner darkness default setting is 4.
The toner darkness setting is available through the operator panel
under the Print Quality menu.
Color correction settings
There are four color correction settings to provide flexibility in
choosing the type of color correction to be applied when printing a
file.
• Auto (default)—provides ease of use with no color science
knowledge required
• Vivid—adjusts CMYK components, with the result being colors
that are more saturated
• Off—no color correction is implemented from RGB or CMYK
applications
• CMYK—provides the application's color correction instead of
the printer's algorithms
Black and White Lock—(in configuration menu) allows printer and
network administrators to lock the printer in a mode that will only
print black. This feature cannot be overridden with any other menu
or driver selection.
1-2 Service Manual
5055-xxx
Physical specifications and weight
Description Height Width Depth Weight
Printers
Lexmark C91x
Lexmark C91xn
1
2,4
20.2 in.
(512 mm)
25.2 in.
(641 mm)
27.4 in.
(695 mm)
27.4 in.
(695 mm)
25.8 in.
(655 mm)
25.8 in.
(655 mm)
177 lb
(80.5 kg)
217.8 lb
(99.0 kg)
Lexmark C91xdn 25.2 in.
(641 mm)
Lexmark C91xfn
3
40.5 in.
(1028 mm)
Fully configured
4
40.5 in.
(1028 mm)
27.4 in.
(695 mm)
46.9 in.
(1191 mm)
60.0 in.
(1520 mm)
25.8 in.
(655 mm)
25.8 in.
(655 mm)
25.8 in.
(655 mm)
230.8 lb
(104.9 kg)
336.4 lb
(152.9 kg)
443.3 lb
(201.5 kg)
Options
Duplex unit 4.7 in.
(120 mm)
550-Sheet drawer 5.1 in.
(129 mm)
High-capacity f ee der,
3000-sheet
Staple Punch finisher,
1100-sheet
25.0 in.
(635 mm)
41.7 in.
(1060 mm)
27.4 in.
(695 mm)
27.4 in.
(695 mm)
14.2 in.
(360 mm)
19.5 in.
(495 mm)
13.8 in.
(350 mm)
25.8 in.
(655 mm)
20.7 in.
(525 mm)
20.5 in.
(520 mm)
13.0 lb
(5.9 kg)
40.8 lb
(18.5 kg)
50.0 lb
(22.6 kg)
56.9 lb
(25.9 kg)
(with stand)
Furniture
Printer cabinet 20.4 in.
(517 mm)
Printer base 10.2 in.
(260 mm)
1
Base model with standard 550-sheet input tray.
2
Network model is network-ready printer with standard 550-sheet input tray plus one
optional 550-sheet drawer.
3
Finisher model is a duplex model printer with 1100-sheet punch finisher and printer
cabinet.
4
Fully configured models include base printer with four standard 550-sheet input
trays, 3000-sheet feeder, 1100-sheet staple punch finisher, duplex unit, and printer
base.
26.6 in.
(675 mm)
26.6 in.
(675 mm)
23.6 in.
(598 mm)
23.6 in.
(547 mm)
57.5 lb
(26.0 kg)
33.0 lb
(15.0 kg)
General information 1-3
5055-xxx
Print speed and performance
Standard and
heavy media
tray
Simplex printing on letter-size media (pages per minute)
Letter—8.5 in. x 11 in. 28 28 28
Ledger 16 N/A 16
Legal—8.5 in. x 14 in. 19 N/A 19
A3 16 N/A 16
A4—3.4 in. x 11.7 in. 29 29 29
A5/Executive N/A N/A 38
B4 18 N/A 18
B5 N/A N/A 32
Transparencies 22 N/A 22
Card stock N/A N/A 11
Envelopes N/A N/A 11
Paper labels 22 N/A 22
Duplex printing on letter-size media (sides per minute)
High-capacity
feeder
Multipurpose
feeder
1
1,2,3,4
Letter—8.5 in. x 11 in. 19 19 19
Ledger 11 N/A 11
Legal—8.5 in. x 14 in. 12 N/A 12
A3 11 N/A 11
A4—3.4 in. x 11.7 in. 19 19 19
A5/Executive N/A N/A 20
1-4 Service Manual
5055-xxx
B4 12 N/A 12
B5 N/A N/A 19
1
Folio and statement paper support from multipurpose feeder only.
2
Speeds.
3
When printing from the multipurpose feeder: Simplex—the first three pages print a
“legal” speed with the balance printing at the speed consistent with the actual media
size. Duplex—all pages print at “legal” speed.
4
Average duple x print performance measured under the following conditions: Simplex
text document from the printer’s integrated tray to the printer’s standard output bin,
with a job stream sufficiently long for the printer system to enter the maximum
duplex print performance page sequence (2,4,6,1,3,5...) The first two sides (2 and 4)
are not included in the performance computation since they “seed” the printer
system’s paper path to achieve the maximum duplex print performance.
Performance
The Lexmark C91x printers support the speeds listed above.
Performance depends on:
• Interface to the host (USB, serial, parallel, network)
• Host system and application
• Page complexity and content
• Certain printer options installed or selected
• Printer memory
• Media size and type
Time to first print
Time to first print is 15 seconds.
Processor
• 400 MHz (C910)
• 600 MHz (C912)
Duty cycle
• Maximum duty cycle–100,000 pages
• True continuous duty cycle–10,000 pages
• Lifetime maximum duty cycle–600,000 pages
General information 1-5
5055-xxx
Printer memory
Memory configuration
DRAM memory Standard Maximum
Lexmark C910(n) 64MB 512MB
Lexmark C910dn 128MB 512MB
Lexmark C912(n) 128MB 512MB
Lexmark C912(dn) 256MB 512MB
Available memory options
Optional 64MB, 128MB and 256MB SDRAM DIMMs are available
from Lexmark.
Flash memory options
Optional 4MB, 8MM and 16MB DIMMs are available from Lexmark.
Memory and expansion slots
• Memory slots for extra flash or DRAM
– Two for Lexmark C910(n) and Lexmark C912(n)
– One for Lexmark C910(dn) and Lexmark C912(dn)
• One expansion slot for optional interface cards
• One optional firmware expansion slots (application solution
firmware card)
• One on-board hard disk interface (for optional hard disk)
SDRAM and flash memory options are interchangeable within any of
the memory slots available on the system board. However, only one
flash memory Maintenance Approach option will be recognized. If
multiple flash memory options are installed, the system will
recognize the largest one.
1-6 Service Manual
5055-xxx
Resident fonts
Emulation Scalable Fonts Bitmapped fonts
PCL 6 84 2
PostScript 3 156 0
For a listing of specific fonts, visit www.lexmark.com.
There are 83 symbol sets in the PCL 6 emulation to support all the
languages that use these characters.
Not all symbol sets are supported by all fonts. Refer to the Technical
Reference or use the printer operator panel to find which symbol
sets are supported by each font.
Support for the euro currency character is included in all applicable
fonts for both PostScript and PCL emulations. Twelve PCL symbol
sets support the euro character, including all seven Windows symbol
sets.
Additional fonts can be downloaded to the printer RAM, optional
Flash DIMM or hard disk. PCL emulation supports both scalable and
bitmapped downloadable fonts. PostScript emulation supports only
downloadable scalable fonts. Font cards and font cartridges are not
supported.
General information 1-7
5055-xxx
Paper and media specifications
Capacity may vary and is subject to media specifications and printer
operating environment. Capacities listed are based on plain paper
at 75 g/m
Input and output configurations
2
.
Sources and
capacities
Input sources
Number of standard
sources
Optional input dra w ers 3 2 2
High-capacity feeder 1 1 1
Maximum number of
input sources
Input capacities (sheets)
Standard
Primary tray 550 550 550
Second tray N/A 550 550
Multipurpose tray 100 100 100
Total standard
capacity
Optional
500-sheet drawer 550 550 550
Heavy media tray
High-capacity feeder
Lexmark
C91x
233
666
650 1,200 1,200
1
2
Yes Yes Yes
3,000 3,000 3,000
Lexmark
C91xn
Lexmark
C91xdn
Maximum additional
drawers
1-8 Service Manual
322
5055-xxx
Sources and
capacities
Maximum input
Lexmark
C91x
Lexmark
C91xn
2,300 2,300 2,300
Lexmark
C91xdn
capacity (without
high-capacity feeder)
Maximum input
5,300 5,300 5,300
capacity and
high-capacity feeder
Output destination
Number (standard) 1 1 1
Output capacities sheets
Standard output bin 550 550 550
Face-up bin 100 100 100
Optional
Finisher
3,4
Maximum output
1,000 1,000 1,000
1,650 1,650 1,650
capacity
Other
Duplex unit Yes Yes Standard
1
The heavy media tray is supported only as Tray 1 (top).
2
A maximum of one high-capacity input drawer is supported on any model.
3
A maximum of one finisher is supported on any model.
4
The finisher requires installation of the 2 x 550-sheet drawer with the base or printer
cabinet.
General information 1-9
5055-xxx
Media size supported
Input
A4—8.27” x 11.7 in.
(210 mm x 297 mm)
A5—5.83” x 8.27 in.
(148 mm x 210 mm
JIS-B5—7.17 in.x 10.23 in.
(182 mm x 257mm)
JIS-B4—4.34 in. x 10.1 in.
(364 mm x 252 mm)
Letter—8.5 in. x 11 in.
(216 mm x 279 mm)
Legal—8.5 in. x 14 in.
(216 mm x 256 mm)
Executive—7.25 in. x 10.5 in.
(184 mm x 267 mm)
Tabloid—11 in. x 17 in.
(279.4 mm x 431.8 mm)
12 in. x 18 in.
(305 mm x 457 mm)
Lexmark C912 only
500-sheet input
XXXXX
XX XX
XXXXX
XX XX
XX XX
XX XX
multipurpose feeder
XXX
XX
XX
High-capacity feeder
Duplex
Heavy media tray
A3—11.69 in. x 16.54” in.
(297 mm x 420 mm)
1-10 Service Manual
XX XX
5055-xxx
Universal
1,2
Banner 11.69 x 36 in.
(297.2 x 914.4 mm)
Lexmark C912 only
2.75 x 5 in. to 8.5 x 14 in.
(69.85 x 127 mm to 229 x
355.6 mm)
5.83 x 7.17 in. to 8.5 x 14 in.
(148 x 182 mm to 215.9 x
355.6 mm)
7 ¾ Envelope—3.875 in. x
7.5 in. (98 mm x 191 mm)
9 Envelope—3.875 in. x 8.9 in.
(98 mm x 225.4 mm)
10 Envelope—4.125 in. x
9.5 in. (105 mm x 241 mm)
DL Envelope—4.33 in. x
8.66 in. (110 mm x 220 mm)
C4 Envelope —9 in. x 12. 75 in.
(229 mm x 324 mm)
500-sheet input
multipurpose feeder
High-capacity feeder
Duplex
Heavy media tray
X
X
X
3
X
3
X
X
X
X
X
X
C5 Envelope—6.38 in. x
9.01 in. (162 mm x 229 mm)
B5 Envelope—6.93 in. x
9.84 in. (176 mm x 250 mm)
4
Other Envelope
—
11.69 in. x 11.69 in.
(297 mm to 297 mm)
X
X
X
General information 1-11
5055-xxx
500-sheet input
multipurpose feeder
High-capacity feeder
Duplex
Heavy media tray
Media type
Paper XXXXX
Card stock X
Transparencies X
5
X
Envelopes X
Glossy paper X X
Paper labels X
6
7
XX
8
X
Output
A4—8.27 in. x 11.7 in.
(210 mm x 297 mm)
Standard output
XXXX
Bin 1
Finisher Bin 1
Finisher Bin 2
A5—5.83 in. x 8.27 in.
(148 mm x 210 mm
JIS-B5—7.17 in. x 10.23 in.
(182 mm x 257mm)
JIS-B4—14.34 in. x 10.1 in.
(364 mm x 252 mm)
Letter—8.5 in. x 11 in.
(216 mm x 279 mm)
1-12 Service Manual
XXX
XX
XXX
XXXX
5055-xxx
Legal—8.5 in. x 14 in.
(216 mm x 256 mm)
Executive—7.25 in. x 10.5 in.
(184 mm x 267 mm)
Tabloid—11 in. x 17 in.
(279.4 mm x 431.8 mm)
12 in. x 18 in.
(305 mm x 457 mm)
Lexmark C912 only
A3—11.69 in. x 16.54 in.
(297 mm x 420 mm)
Universal
Banner 11.69 x 36 in.
(297.2 x 914.4 mm)
Lexmark C912 only
2.75 x 5 in. to 8.5 x 14 in.
(69.85 x 127 mm to 229 x 355.6 mm)
5.83 x 7.17 in. to 8.5 x 14 in.
(148 x 182 mm to 215.9 x 355.6 mm)
1,2
Standard output
XXX
XXX
XXX
XXX
XXX
X
Bin 1
X
X
Finisher Bin 1
X
X
Finisher Bin 2
7 ¾ Envelope—3.875 in. x 7.5 in.
(98 mm x 191 mm)
9 Envelope—3.875 in. x 8.9 in.
(98 mm x 225.4 mm)
10 Envelope—4.125 in. x 9.5 in.
(105 mm x 241 mm)
DL Envelope—4.33 in. x 8.66 in.
(110 mm x 220 mm)
C4 Envelope—9 in. x 12.75 in.
(229 mm x 324 mm)
X
X
X
X
XX
General information 1-13
5055-xxx
Standard output
C5 Envelope—6.38 in. x 9.01 in.
Bin 1
Finisher Bin 1
XX
(162 mm x 229 mm)
B5 Envelope—6.93 in. x 9.84 in.
XX
(176 mm x 250 mm)
Other Envelope
—11.69 in. x 11.6 9 in .
XX
4
(297 mm to 297 mm)
Media type
Paper X X X X
Card stock XXX
Transparencies X X
Envelopes X X
Glossy paper X X X X
Paper labels X
1
When Universal is selected, the page is formatted for 8.5 x 14 in. (215.9 x 355.6
mm) unless the size is specified in the software application.
2
Narrow media should be loaded with the length in the feed direction (portrait).
3
A5 paper 5.83 x 8.27 in. (148 x 210 mm) is the smallest size the printer can duplex.
4
When Other Envelope is selected, the page is formatted for 8.5 x 14 in. (215.9 x
355.6 mm) unless the size is specified in the software application.
5
Maximum stack of 50 sheets; if more input is required, use Heavy Media Tray.
6
Manual feed (one sheet at a time) only; if more input is required, use Heavy Media
Tray.
7
Maximum st ack of 30 sheets; if more input is required, use Heavy Media Tray.
8
Refer to Cardstock & Label Guide for media guidelines.
X
Finisher Bin 2
1-14 Service Manual
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