Hewlett-Packard 1200 - LaserJet B/W Laser Printer Service Manual
Download Service manual of HP 1200 All in One Printer, Fax Machine for Free or View it Online on All-Guides.com.
Brand: HP
Category: All in One Printer , Fax Machine , Printer
Type: Service manual for HP 1200
Pages: 208 (7.84 Mb)
EN
Chapter contents 129
6
Troubleshooting
Chapter contents
Basic troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Control panel light messages . . . . . . . . . . . . . . . . . . . 132
Fatal error secondary messages . . . . . . . . . . . . . . . . 135
Checking the toner cartridge . . . . . . . . . . . . . . . . . . . 137
Solving image-quality problems . . . . . . . . . . . . . . . . . 138
Solving paper-feed problems . . . . . . . . . . . . . . . . . . . . . . . . 146
Solving print paper-feed problems . . . . . . . . . . . . . . . 146
Solving copying and scanning paper-feed problems . 148
Functional checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
Engine test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
Half self-test functional check. . . . . . . . . . . . . . . . . . . 150
Drum rotation functional check. . . . . . . . . . . . . . . . . . 151
Heating element check. . . . . . . . . . . . . . . . . . . . . . . . 152
High-voltage power supply check. . . . . . . . . . . . . . . . 153
Paper path check . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
Service mode functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
NVRAM initialization/cold reset . . . . . . . . . . . . . . . . . 156
PJL software commands . . . . . . . . . . . . . . . . . . . . . . 156
Troubleshooting tools. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
Internal reports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
Repetitive image defect ruler . . . . . . . . . . . . . . . . . . . 161
Main wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
Locations of connectors . . . . . . . . . . . . . . . . . . . . . . . 164
Locations of LEDs, jumpers, and switches. . . . . . . . . 165