Electrostatic discharge
.....................................................................................................
80
User-replaceable parts
.....................................................................................................
80
Required tools
...................................................................................................................
80
Before performing service
.......................................................................................................
81
Pre-service procedures
....................................................................................................
81
Parts removal order
..........................................................................................................
81
Covers
......................................................................................................................................
82
Left-side cover
...................................................................................................................
82
Right-side cover
.................................................................................................................
84
Back cover
.........................................................................................................................
86
Duplexer tray
.....................................................................................................................
89
Top cover
...........................................................................................................................
90
Control panel
............................................................................................................................
93
Formatter
..................................................................................................................................
95
Laser/scanner
...........................................................................................................................
96
Memory-tag-reader assembly
..................................................................................................
97
Duplex-drive PCA
.....................................................................................................................
99
Fuser
......................................................................................................................................
101
Fan
...................................................................................................................................
101
Duplex-drive gears/face-down gears
...............................................................................
103
Duplex solenoid (SL3) (HP LaserJet 1320 Series printers only)
.....................................
106
Fuser
................................................................................................................................
107
Interlock assembly
.................................................................................................................
117
ECU
........................................................................................................................................
119
Main motor
.............................................................................................................................
127
Pickup and feed assemblies
..................................................................................................
129
Transfer roller
..................................................................................................................
129
Registration assembly
.....................................................................................................
130
Main gear assembly/tray 2 pickup solenoid
...........................................................................
131
Print-cartridge door
................................................................................................................
135
Wireless communications card
..............................................................................................
137
7 Troubleshooting
Chapter contents
....................................................................................................................
139
Basic troubleshooting
.............................................................................................................
141
Paper-handling problems
......................................................................................................
144
Paper jam
.......................................................................................................................
144
Print is skewed (crooked)
...............................................................................................
144
More than one sheet of media feeds through the printer at one time
............................
144
Printer does not pull media from the media input tray
...................................................
145
Printer curled the media
.................................................................................................
145
Printed media does not exit to the correct path
..............................................................
145
Print job is extremely slow
..............................................................................................
145
Paper-path troubleshooting
....................................................................................................
146
Solving print paper-feed problems
..................................................................................
146
Printed page is different than what appeared on screen
......................................................
148
Garbled, incorrect, or incomplete text
............................................................................
148
Missing graphics or text, or blank pages
........................................................................
148
Page format is different than on another printer
.............................................................
149
Graphics quality
..............................................................................................................
149
Status light patterns
..............................................................................................................
150
Fatal error secondary messages
...........................................................................................
156
Accessory error secondary messages
...................................................................................
159
Troubleshooting postscript (PS) errors
.................................................................................
160
Image troubleshooting
............................................................................................................
161
ENWW
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