Table of contents
Product information.....................................................................................2
Edition notice...............................................................................................2
Notices and safety information..................................................................15
Laser notices............................................................................................................................................15
Safety information...................................................................................................................................18
Preface.......................................................................................................23
Service manual conventions....................................................................................................................23
Change history.........................................................................................................................................23
General information...................................................................................27
Media guidelines.....................................................................................................................................27
Paper guidelines ............................................................................................................................................... 27
Using recycled paper and other office papers ..................................................................................................29
Using specialty media ....................................................................................................................................... 30
Supported paper sizes, types, and weights ......................................................................................................32
Data security notice.................................................................................................................................34
Tools required for service........................................................................................................................35
Diagnostic information...............................................................................37
Troubleshooting overview.......................................................................................................................37
Performing the initial troubleshooting check ...................................................................................................37
Power‑on Reset (POR) sequence ......................................................................................................................38
Using Safe Mode...............................................................................................................................................38
Fixing print quality issues........................................................................................................................39
Initial print quality check ..................................................................................................................................39
Gray background or toner fog check ................................................................................................................40
Repeating defects check ...................................................................................................................................41
Blank pages check............................................................................................................................................. 41
Solid black pages check.....................................................................................................................................42
Shadow images check .......................................................................................................................................42
Skewed print check........................................................................................................................................... 43
Streaked horizontal or vertical lines check .......................................................................................................45
Toner smear check............................................................................................................................................46
Toner specks check ...........................................................................................................................................47
Paper jams...............................................................................................................................................47
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Table of contents
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