Initial print quality check ..................................................................................................................................61
Gray background check ....................................................................................................................................61
Horizontal voids check ......................................................................................................................................62
Print irregularities check...................................................................................................................................63
Blank pages check.............................................................................................................................................64
Solid black pages check.....................................................................................................................................65
Shadow images check .......................................................................................................................................66
Skewed print check...........................................................................................................................................67
Streaked horizontal lines check ........................................................................................................................68
Streaked vertical lines check.............................................................................................................................70
Toner specks check ...........................................................................................................................................70
Vertical voids check ..........................................................................................................................................71
Toner fog or background shading check...........................................................................................................72
Toner smear check............................................................................................................................................74
Paper jams...............................................................................................................................................74
Avoiding jams....................................................................................................................................................74
Understanding jam messages and locations.....................................................................................................77
200–201 paper jams .........................................................................................................................................80
[x]‑page jam, lift front cover to remove cartridge. [200] .............................................................................80
200–201 paper jam messages ......................................................................................................................83
Sensor (input) static jam service check ........................................................................................................85
Sensor (input) early arriving jam service check............................................................................................85
Sensor (input) never‑ or late‑arriving jam service check .............................................................................86
Sensor (input) late-leaving or did-not-clear jam service check ....................................................................88
Main drive motor control jam service check................................................................................................90
Printhead motor control jam service check .................................................................................................90
Fuser drive motor control jam service check ...............................................................................................91
Sensor (input) miscellaneous jam 1 service check .......................................................................................92
Sensor (input) miscellaneous jam 2 service check .......................................................................................92
Sensor (input) miscellaneous jam 3 service check .......................................................................................93
202 paper jams ................................................................................................................................................. 93
[x]‑page jam, open upper rear door. [202] .................................................................................................. 93
202 paper jam messages ..............................................................................................................................94
Sensor (fuser exit) static jam service check..................................................................................................95
Sensor (fuser exit) late-leaving jam service check........................................................................................96
Sensor (fuser exit) late-arriving jam service check.......................................................................................97
Sensor (narrow media) late arriving jam service check................................................................................98
Sensor (narrow media) static jam service check ..........................................................................................99
Sensor (fuser exit) miscellaneous jam service check....................................................................................99
Fuser ID chip control jam service check .....................................................................................................100
203 paper jams ............................................................................................................................................... 100
[x]‑page jam, remove standard bin jam. [203]...........................................................................................100
203 paper jam messages ............................................................................................................................101
Upper redrive motor control jam service check.........................................................................................101
23y paper jams ...............................................................................................................................................102
7463
Table of contents
4