Table of contents
Product information.....................................................................................2
Edition notice...............................................................................................2
Laser notices............................................................................................................................................11
Safety information...................................................................................................................................14
Preface.......................................................................................................19
Service manual conventions....................................................................................................................19
Change history.........................................................................................................................................19
General information...................................................................................23
Media guidelines.....................................................................................................................................23
Paper guidelines ...............................................................................................................................................23
Using specialty media .......................................................................................................................................26
Data security notice.................................................................................................................................32
Tools required for service........................................................................................................................33
Troubleshooting overview.......................................................................................................................35
Power-on Reset (POR) sequence ......................................................................................................................36
Using Safe Mode...............................................................................................................................................36
Fixing print quality issues........................................................................................................................37
Initial print quality check ..................................................................................................................................38
Toner smear check............................................................................................................................................38
Background or toner fog check.........................................................................................................................39
Blank pages check.............................................................................................................................................41
Blurred or fuzzy print check..............................................................................................................................42
Half-color page check .......................................................................................................................................42
Horizontal banding check .................................................................................................................................43
Horizontal line check ........................................................................................................................................43
Missing image at edge check ............................................................................................................................43
Toner specks check ...........................................................................................................................................44
Narrow vertical line check ................................................................................................................................44
Random marks check........................................................................................................................................44
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