HP LaserJet 1018 - Page 7

Replacing the pickup roller ................................................................................................. 57
Replacing the separation pad ............................................................................................. 60
Replacing the main input tray (paper-pickup tray assembly) ............................................. 62
Replacing the output-bin extension (delivery-tray assembly) ............................................. 63
Covers ................................................................................................................................................. 64
Right-side cover .................................................................................................................. 64
Left-side cover .................................................................................................................... 66
Rear panel and top-cover assembly ................................................................................... 66
Front cover .......................................................................................................................... 71
Internal assemblies .............................................................................................................................. 73
Transfer-roller assembly ..................................................................................................... 73
Engine-power assembly ..................................................................................................... 75
Fuser (fixing) assembly ....................................................................................................... 77
Paper-pickup assembly ...................................................................................................... 79
Engine control unit (ECU) assembly ................................................................................... 80
Laser/scanner assembly ..................................................................................................... 84
6 Troubleshooting
Basic troubleshooting .......................................................................................................................... 86
Troubleshooting checklist ................................................................................................... 86
Control-panel lights .............................................................................................................................. 88
Status-light patterns ............................................................................................................ 88
Jams .................................................................................................................................................... 90
Clearing jams ...................................................................................................................... 90
Typical media jam locations ............................................................................... 90
Removing a jammed page ................................................................................. 90
Print-quality troubleshooting ................................................................................................................ 93
Print-cartridge problems ..................................................................................................... 93
Checking the print cartridge ............................................................................... 93
To redistribute toner in the print cartridge ......................................... 93
Solving print-quality problems ............................................................................................. 93
Solving paper-feed problems ............................................................................................................ 105
Functional checks .............................................................................................................................. 107
Half self-test functional check ........................................................................................... 107
To perform a half self-test check ...................................................................... 107
To perform other checks .................................................................................. 107
Drum-rotation functional check ........................................................................................ 109
High-voltage-contacts check ............................................................................................. 110
To check the print-cartridge contacts ............................................................. 110
To check the printer high-voltage contacts ..................................................... 111
Troubleshooting tools ........................................................................................................................ 112
Repetitive-image-defect ruler ............................................................................................ 112
Circuit diagram .................................................................................................................. 113
Solenoid, sensors, switches, and motor ............................................................................................ 114
7 Parts and diagrams
Ordering parts and supplies .............................................................................................................. 116
Parts .................................................................................................................................. 116
Related documentation and software ............................................................................... 116
Parts that wear ................................................................................................................. 116
ENWW v
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