Lexmark MS71 Series, Service Manual

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Table of contents
Product information..................................................................................... 2
Edition notice............................................................................................... 2
Notices and safety information.................................................................. 17
Laser notices............................................................................................................................................ 17
Safety....................................................................................................................................................... 20
Preface....................................................................................................... 25
Service manual conventions.................................................................................................................... 25
General information................................................................................... 27
Printer configurations............................................................................................................................. 28
Paper guidelines...................................................................................................................................... 30
Paper characteristics......................................................................................................................................... 30
Selecting paper ................................................................................................................................................. 31
Selecting preprinted forms and letterhead ...................................................................................................... 31
Using recycled paper and other office papers.................................................................................................. 31
Storing paper .................................................................................................................................................... 33
Data security notice................................................................................................................................. 33
Tools required for service........................................................................................................................ 33
Diagnostic information............................................................................... 35
Troubleshooting overview....................................................................................................................... 35
Performing the initial troubleshooting check ................................................................................................... 35
Error code number key ..................................................................................................................................... 36
Power
‑
on Reset (POR) sequence............................................................................................................. 36
Using Safe Mode..................................................................................................................................... 37
Fixing print quality issues........................................................................................................................ 37
Initial print quality check .................................................................................................................................. 38
Gray background on prints ............................................................................................................................... 38
Printer is printing blank pages .......................................................................................................................... 39
Printer is printing solid black pages .................................................................................................................. 40
Repeating defects ............................................................................................................................................. 41
Shadow images appear on prints ..................................................................................................................... 41
Skewed print..................................................................................................................................................... 42
Streaked horizontal lines appear on prints....................................................................................................... 43
Streaked vertical lines appear on prints ........................................................................................................... 45
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Table of contents
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