Lexmark MS825 Service Manual

Table of contents
Product information......................................................................................2
Edition notice.................................................................................................2
Notices, conventions, and safety information.........................................21
Laser notice......................................................................................................................................................... 21
Conventions........................................................................................................................................................22
Safety information............................................................................................................................................. 23
Change history............................................................................................27
Change history...................................................................................................................................................27
General information.................................................................................... 31
Printer model configurations........................................................................................................................... 31
Paper support.....................................................................................................................................................32
Supported paper sizes............................................................................................................................................... 32
Supported paper types.............................................................................................................................................. 35
Supported paper weights ..........................................................................................................................................37
Tools required for service................................................................................................................................39
Diagnostics and troubleshooting..............................................................41
Troubleshooting precautions.......................................................................................................................... 41
Troubleshooting overview...............................................................................................................................43
Performing the initial troubleshooting check....................................................................................................... 43
Using Safe Mode ......................................................................................................................................................... 43
Fixing print quality issues................................................................................................................................ 44
Initial print quality check............................................................................................................................................ 44
Gray background on prints check........................................................................................................................... 45
Printer is printing blank pages check......................................................................................................................47
Print is too dark check................................................................................................................................................50
Print is too light check................................................................................................................................................52
Paper curl check.......................................................................................................................................................... 54
Folded or wrinkled paper check .............................................................................................................................56
Printer is printing solid black pages check........................................................................................................... 57
Repeating defects appear on prints check .......................................................................................................... 59
Skewed print check ....................................................................................................................................................60
Streaked vertical lines appear on prints check ...................................................................................................62
Horizontal light bands check.................................................................................................................................... 64
4064
Table of contents
3

Lexmark MS825 Specifications

General

Brand	Lexmark
Model	MS825
Category	Printer
Language	English