HP LaserJet 1022 Series Service Manual

HP LaserJet 1022, 1022n, 1022nw. Guide … HP LaserJet 1022nw … To perform service … Use the procedure in this section to select the correct type of media for the print job. An incorrect media type setting might cause image-quality problems.

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HP LaserJet 1022, 1022n, 1022nw Service Manual
Removal and replacement
Removal and replacement strategy…58
Required tools …58
Before performing service…58
Print cartridge …59
Parts removal order …60
User-replaceable parts …61
Replacing the pickup roller …61
Replacing the separation pad …64
Replacing the main input tray (paper-pickup tray assembly) …66
Replacing the output-bin extension (delivery-tray assembly) …67
Covers…68
Right-side cover…68
Left-side cover…70
Rear panel and top-cover assembly…70
Front cover…75
Internal assemblies…77
Transfer-roller assembly…77
Engine-power assembly…80
Fuser (fixing) assembly…82
Paper-pickup assembly…84
Engine control unit (ECU) assembly…85
Laser/scanner assembly…89
Troubleshooting
Basic troubleshooting…92
Basic troubleshooting…92
Reset the factory default settings (cold reset)…94
Control-panel pages…94
Control-panel lights…95
Control-panel light patterns…95
Jams…97
Clearing jams…97
Typical media jam locations…97
Removing a jammed page…98
Print-quality troubleshooting…100
Print-cartridge problems…100
Checking the print cartridge…100
To redistribute toner in the print cartridge…100
Solving print-quality problems…100
Solving paper-feed problems…111
Functional checks…113
Half self-test functional check…113
To perform a half self-test check…113
To perform other checks…113
Drum-rotation functional check …114
High-voltage-contacts check…115
To check the print-cartridge contacts …115
To check the printer high-voltage contacts …116
Troubleshooting tools…117
Repetitive-image-defect ruler…117
Circuit diagram …118
Solenoid, sensors, switches, and motor…119

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