HP LaserJet M1120 MFP Series Service Manual

Product information......Page 17
Quick access to product information......Page 18
Product comparison......Page 19
Product features......Page 20
Back view......Page 21
Serial number and model number location......Page 22
Easy installation for Windows......Page 23
Macintosh software......Page 24
Other Windows components and utilities......Page 25
HP Director......Page 26
Macintosh......Page 27
Supported paper and print media sizes......Page 28
Supported paper types and tray capacity......Page 29
Installation......Page 31
Operating environment......Page 32
Minimum system requirements......Page 33
What was in the box......Page 34
Priority input tray......Page 35
Tray 1......Page 36
Install the print cartridge......Page 37
Maintenance......Page 39
Store supplies......Page 40
Print cartridge......Page 41
HP policy on non-HP supplies......Page 42
HP fraud hotline......Page 43
Clean the lid backing......Page 44
Clean the paper path......Page 45
Embedded Web server......Page 46
Features......Page 47
Operational theory......Page 49
Sequence of operation for the base unit......Page 50
Scanner functions......Page 52
Scanner operation......Page 53
Internal components (base unit)......Page 54
Engine control system......Page 55
Laser/scanner system......Page 57
Pickup/feed/delivery system......Page 58
Image-formation system......Page 59
Removal and replacement......Page 63
Removal and replacement warnings, cautions, notes, and tips......Page 64
Before performing service......Page 65
After performing service......Page 66
Test 2 (copy-quality test)......Page 67
Parts removal order......Page 68
Link assemblies and scanner support-frame spring......Page 69
Scanner lid......Page 72
Control-panel overlay......Page 73
Control-panel assembly......Page 74
Scanner assembly......Page 76
Print cartridge......Page 81
Separation pad......Page 82
Pickup roller......Page 83
Scanner cushions......Page 86
Media input tray......Page 87
Transfer roller......Page 89
Side covers......Page 90
Print-cartridge door......Page 92
Rear cover and fuser cover......Page 93
Front cover......Page 95
Formatter......Page 97
Power supply......Page 98
Scanner support frame......Page 102
Laser/scanner assembly......Page 105
Main motor......Page 109
Fuser......Page 112
Paper-pickup assembly......Page 116
Drive-gear assembly and drive belt......Page 119
Problem solve......Page 121
Problem-solving checklist......Page 122
Alert and warning message tables......Page 124
Critical error message-tables......Page 125
Causes of jams......Page 127
Clear jams from the input-tray areas......Page 128
Clear jams from the output bin......Page 131
Clear jams from the print-cartridge area......Page 132
Avoid repeated jams......Page 133
Change print-quality settings for all future jobs......Page 134
Print-quality checklist......Page 135
General print-quality issues......Page 136
Solve scanned-image problems......Page 140
Solve scan-quality problems......Page 142
Image problems......Page 143
Media-handling problems......Page 144
Performance problems......Page 146
Drum rotation test......Page 147
Perform other checks......Page 148
Check the print-cartridge contacts......Page 149
Check the high-voltage connector assembly......Page 150
Secondary service menu......Page 151
Menu map......Page 153
Archive print......Page 154
Repetitive image defects......Page 156
Interface ports......Page 157
Formatter connectors......Page 158
ECU connectors......Page 159
Solenoid and motor......Page 160
Rollers......Page 161
Sensors......Page 162
Major components......Page 163
PCAs (base unit)......Page 164
Circuit diagram......Page 165
Firmware updates......Page 166
Parts......Page 167
Cable and interface accessories......Page 168
Whole-unit replacement......Page 169
Control-panel overlays......Page 173
Supplementry documentation and support......Page 176
Parts lists and diagrams......Page 178
Types of screws......Page 179
Scanner assemblies......Page 180
Assemblies......Page 182
External covers and panels......Page 184
Internal components (1 of 3)......Page 186
Internal components (2 of 3)......Page 188
Internal components (3 of 3)......Page 190
Alphabetical parts list......Page 192
Numerical parts list......Page 194
Hewlett-Packard limited warranty statement......Page 197
Customer self repair warranty service......Page 198
Print cartridge limited warranty statement......Page 199
Extended warranty......Page 200
Specifications......Page 201
Power consumption......Page 202
Acoustic emissions......Page 203
Regulatory information......Page 205
Paper use......Page 206
Shipping......Page 207
For more information......Page 208
Declaration of conformity......Page 210
EMI statement (Korea)......Page 211
Substances table (China)......Page 212
Index......Page 215