Fatal error secondary messages
.......................................................................................................
147
Accessory error secondary messages
..............................................................................................
150
Media problemsolving
........................................................................................................................
151
Printed page is different from what appeared on screen
..................................................................
153
Garbled, incorrect, or incomplete text
...............................................................................
153
Missing graphics or text, or blank pages
..........................................................................
153
Page format is different from another HP LaserJet printer
...............................................
154
Graphics quality
................................................................................................................
154
Image problem solving
......................................................................................................................
155
Light print or faded
............................................................................................................
155
Toner specks
....................................................................................................................
155
Dropouts
...........................................................................................................................
155
Vertical lines
......................................................................................................................
156
Gray background
..............................................................................................................
156
Toner smear
......................................................................................................................
156
Loose toner
.......................................................................................................................
157
Vertical repetitive defects
..................................................................................................
157
Misformed characters
.......................................................................................................
157
Page skew
........................................................................................................................
158
Curl or wave
......................................................................................................................
158
Wrinkles or creases
..........................................................................................................
158
Toner scatter outline
.........................................................................................................
159
Clear jams
..........................................................................................................................................
160
Print-cartridge area
...........................................................................................................
160
Input trays
.........................................................................................................................
162
Output bin
.........................................................................................................................
165
Straight-through output path
.............................................................................................
166
Automatic two-sided printing path
....................................................................................
167
Diagnostic resources
.........................................................................................................................
172
Engine test
........................................................................................................................
172
Continuous self-test
..........................................................................................................
172
Half self-test functional check
...........................................................................................
173
Drum rotation functional check
........................................................................................
173
Heating element check
.....................................................................................................
173
High-voltage contacts check
.............................................................................................
174
Checking the print cartridge contacts
............................................................
174
Checking the high-voltage connector assembly
.............................................
175
Network-setup problemsolving
..........................................................................................................
176
Reset the printer
................................................................................................................................
177
NVRAM initialization
.........................................................................................................
177
Super NVRAM initialization
...............................................................................................
177
Network reset
....................................................................................................................
178
Cold reset
..........................................................................................................................
178
Troubleshooting tools and reference diagrams
.................................................................................
179
Repetitive image defects
..................................................................................................
179
General timing chart
.........................................................................................................
180
Circuit diagram
..................................................................................................................
181
Solenoids
..........................................................................................................................
183
Switches and sensors
.......................................................................................................
184
Rollers and pads
...............................................................................................................
185
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ENWW