HP LaserJet 4100 Service Manual Page 178
- Page / 336
- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
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176 Removing and replacing parts EN
Paper-feed guide assembly
1 To remove the paper-feed guide assembly:
a Remove the rear right side cover (page 138).
b Remove the control panel (page 139).
c Remove the top cover (page 141).
d Remove the left side cover (page 143).
e Remove the front right side cover (page 144).
f Remove the rear cover/rear output bin (page 145).
g Remove the fuser assembly (page 149).
h Remove tray 1 (page 146).
i Remove the tray 1 pickup assembly (page 161).
j Remove the right side toner cartridge guide (page 164).
k Remove the registration assembly (page 165).
l Remove the formatter assembly (page 151).
m Remove the printer drive assembly (page 169).
n Separate the engine module from the paper-feed module (page 171).
o Remove the engine controller board (page 173).
2 Remove the plastic main gear cable guide by releasing the three tabs.
3 Loosen the plastic formatter ribbon cable guide.
4 Disconnect the paper-sensor cable.
5 Remove the two self-tapping screws.
6 Carefully remove the paper-feed guide assembly.
Note The engine controller board grounding spring might interfere with removal.
- Service Manual _____________ 3
- Contents 5
- 4 Printer maintenance 6
- 5 Theory of operation 6
- 7 Troubleshooting 8
- 8 Parts and diagrams 8
- 10 Figures EN 12
- Printer description 15
- Printer features 16
- Product compatibility matrix 20
- Identification 22
- Site requirements 23
- Installation requirements 24
- Environmental requirements 26
- Print media specifications 27
- Types of print media to avoid 31
- Weight equivalence table 32
- Adhesive labels 33
- Overhead transparencies 34
- Envelopes 35
- Envelope specifications 36
- Card stock and heavy paper 37
- Safety information 38
- Laser safety 39
- Regulatory information 39
- 38 Printer description EN 40
- Service approach 41
- Parts and supplies 42
- Printer documentation 43
- Exchange program 44
- Consumables 44
- World Wide Web 44
- Toner cartridge information 46
- Warranty statement 47
- 46 Service approach EN 48
- Printer operation 49
- 48 Printer operation EN 50
- Using the control panel 51
- Control panel keys 52
- Settings and defaults 53
- Control panel menus 54
- Quick copy jobs menu 55
- Private/stored jobs menu 56
- Information menu 57
- Paper-handling menu 59
- Printing menu 62
- Print quality menu 65
- Configuration menu 68
- I/O menu 71
- EIO menu (networked printers) 72
- Resets menu 75
- Service mode 76
- Service menu 77
- Testing the printer 80
- Resetting the printer 81
- System configuration 82
- Printer maintenance 83
- Using the auto-cleaning page 86
- Cleaning spilled toner 87
- PERFORM PRINTER MAINTENANCE 88
- Expected life of components 89
- 88 Printer maintenance EN 90
- Theory of operation 91
- Power supply system 93
- Toner-cartridge detection 96
- Engine controller system 97
- 96 Theory of operation EN 98
- 98 Theory of operation EN 100
- 100 Theory of operation EN 102
- Laser/scanner drive 103
- Engine test print 103
- 102 Theory of operation EN 104
- Figure 17. Main motor control 104
- Formatter system 106
- EconoMode 107
- Input/output 107
- Printer memory 108
- DIMM slots 108
- PJL overview 109
- Control panel 109
- Image formation system 110
- Toner cartridge 111
- Photosensitive 112
- Aluminum 112
- Conditioning the drum 113
- Writing the image 114
- Developing the image 115
- Transferring the image 116
- Variable fusing temperature 118
- Paper feed system 119
- 118 Theory of operation EN 120
- Figure 29. Paper path 121
- Clutches and sensors 122
- Printing from tray 1 122
- Printing from tray 2 124
- Pickup and feeding 127
- 126 Theory of operation EN 128
- Figure 36. Paper feed pickup 128
- Envelope feeder 129
- Duplexer 129
- Other controls 131
- Basic sequence of operation 132
- Figure 38. Timing diagram 133
- 132 Theory of operation EN 134
- Removing and replacing parts 135
- Required tools 138
- Removing covers 140
- Control panel board 142
- Top cover 143
- Left side cover 145
- Front right side cover 146
- Rear cover/rear output bin 147
- Removing internal assemblies 151
- Firmware DIMM 152
- Formatter assembly 153
- Output delivery assembly 154
- Laser/scanner 156
- Cartridge memory 157
- Main motor 160
- Transfer roller 161
- Tray 1 pickup roller 162
- Tray 1 pickup assembly 163
- Registration assembly 167
- Paper feed assembly 169
- Delivery drive assembly 172
- Engine controller board 175
- Adjusting the top margin 177
- Paper-feed guide assembly 178
- Removing tray assemblies 179
- Troubleshooting 185
- Troubleshooting process 186
- Troubleshooting flowchart 187
- 186 Troubleshooting EN 188
- Preliminary operating checks 189
- Power on 190
- Engine test 192
- Event log 193
- Print the event log 194
- Display the event log 194
- Interpret the event log 194
- Printer messages 195
- Information pages 224
- Embedded Web server 226
- Embedded Web server page sets 226
- Home page set 227
- Configuration page 228
- Image quality 229
- Check the toner cartridge 230
- Image defects 232
- Repetitive defect ruler 245
- Image system troubleshooting 246
- Reference diagrams 248
- 248 Troubleshooting EN 250
- 250 Troubleshooting EN 252
- Paper path 254
- Motors and fans 259
- Connectors 260
- 260 Troubleshooting EN 262
- Figure 112. Location of PCAs 263
- Solenoids and clutch 268
- 268 Troubleshooting EN 270
- Parts and diagrams 271
- Ordering parts 272
- Ordering consumables 272
- Accessories and supplies 273
- Illustrations and parts lists 276
- Firmware DIMM kit 278
- 278 Parts and diagrams EN 280
- 280 Parts and diagrams EN 282
- 282 Parts and diagrams EN 284
- 284 Parts and diagrams EN 286
- 286 Parts and diagrams EN 288
- 292 Parts and diagrams EN 294
- 298 Parts and diagrams EN 300
- 300 Parts and diagrams EN 302
- 304 Parts and diagrams EN 306
- Alphabetical parts list 308
- Numerical parts list 315
- 320 Parts and diagrams EN 322
- EN Index 321 323
- Numerics 323
- 322 Index EN 324
- EN Index 323 325
- 324 Index EN 326
- EN Index 325 327
- 326 Index EN 328
- EN Index 327 329
- 328 Index EN 330
- EN Index 329 331
- 330 Index EN 332
- EN Index 331 333
- 332 Index EN 334
- *C8049 * 336
- *C * 336
- 8049-90920 336
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