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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