HP P3010 User Manual Page 124
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- Table of contents
- TROUBLESHOOTING
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Engine control unit (ECU)
WARNING! ESD sensitive component.
1. Before proceeding, remove the following components:
●
DIMM cover. See
DIMM cover and DIMM on page 57.
●
Formatter cover and formatter PCA. See
Formatter cover and formatter PCA on page 60.
●
Rear-door assembly. See
Rear-door assembly on page 62.
●
Left cover. See
Left cover on page 66.
●
Top-right cover. See
Top-right cover on page 73.
●
Control panel. See
Control panel on page 74.
●
Front-right and right-side cover assembly. See
Front-right and right-side cover assembly
on page 76.
●
Lower-right cover and bracket. See
Lower-right cover and bracket on page 80.
●
Top cover. See
Top cover on page 84.
●
Power switch assembly. See
Power-switch assembly on page 96.
TIP: Removing the power-switch assembly makes it easier to disconnect the connectors at
the front of the ECU.
2. Disconnect two connectors (callout 1).
Figure 2-98 Remove the ECU (1 of 9)
1
110 Chapter 2 Removal and replacement ENWW
- Service Manual 1
- Table of contents 7
- 1 Theory of operation 15
- Basic operation 16
- Sequence of operation 17
- Formatter-control system 18
- PJL overview 19
- Control panel 19
- Engine-control system 20
- Figure 1-3 Motors 21
- ENWW Engine-control system 7 21
- Figure 1-4 Fans 22
- ENWW Engine-control system 9 23
- Table 1-6 Switches (product) 24
- ENWW Engine-control system 11 25
- Figure 1-9 Sensors 26
- ENWW Engine-control system 13 27
- DC controller operations 28
- ENWW Engine-control system 15 29
- Fuser-control circuit 30
- Fuser failure detection 31
- Fuser temperature control 32
- Fuser protective function 33
- Low-voltage power supply 34
- High-voltage power supply 36
- Formatter 37
- Laser/scanner system 38
- Laser failure detection 39
- Image-formation system 40
- Image formation process 41
- Latent-image formation stage 42
- Developing stage 43
- Transfer stage 44
- Toner detection 46
- Paper trays 47
- Photo sensors and switches 48
- Solenoids and clutches 50
- Tray 1 or Tray 2 52
- Paper pickup and feed 53
- Jam detection 54
- Additional tray 55
- 2 Removal and replacement 59
- Electrostatic discharge 60
- Required tools 60
- Types of screws 61
- Service approach 62
- ENWW Service approach 49 63
- Parts removal order 64
- ENWW Service approach 51 65
- Print cartridge 66
- Sub cover 69
- EIO disk 70
- DIMM cover and DIMM 71
- Rear-door assembly 76
- Left cover 80
- Right-rear cover 82
- 4. Remove the Tray 1 cover 84
- Cartridge-door assembly 85
- Top-right cover 87
- Lower-right cover and bracket 94
- Top cover 98
- Main assemblies 100
- Transfer roller 106
- USB port PCA 108
- Power-switch assembly 110
- Registration assembly 116
- Duplex media-feed assembly 118
- Laser/scanner 121
- Engine control unit (ECU) 124
- Fuser motor 131
- Sub fan and fan duct 132
- 3 Solve problems 141
- Solve problems checklist 142
- Menu map 144
- Troubleshooting process 145
- Power subsystem 146
- Tools for troubleshooting 147
- Engine diagnostics 148
- Fuser test page 149
- Sensor test (interactive) 151
- Print/stop test 171
- Component tests 172
- Table 3-6 Components test 173
- Diagrams 174
- Item Description 175
- 1 Pickup roller 175
- 2 Feed roller 175
- 3 Separation pad 175
- Plug/jack locations 176
- Location of connectors 177
- Locations of major components 179
- 2 High-voltage power supply 182
- General timing charts 183
- General circuit diagram 184
- Cleaning page 186
- Configuration page 186
- Repetitive image-defect ruler 187
- Control-panel menus 188
- Retrieve job menu 189
- Information menu 190
- Paper handling menu 191
- Manage supplies menu 191
- Configure device menu 192
- Diagnostics menu 208
- Service menu 210
- Control-panel message types 211
- Control-panel messages 211
- 59.30 and 59.40 errors 218
- 59.50 and 59.60 errors 218
- Event-log messages 229
- HP LaserJet P 3015 Printers 230
- Clear jams 233
- Jam locations 234
- ENWW Clear jams 221 235
- ENWW Clear jams 223 237
- 5. Remove any jammed paper 238
- 7. Close the cartridge door 239
- ENWW Clear jams 225 239
- Clear jams from the duplexer 240
- 7. Remove any jammed paper 242
- 9. Close the rear door 242
- 11. Remove any jammed paper 243
- ENWW Clear jams 229 243
- 13. Close the cartridge door 244
- 4. Close the rear door 246
- 6. Remove any jammed paper 247
- 8. Close the cartridge door 247
- ENWW Clear jams 233 247
- 3. Remove any jammed paper 249
- 5. Close the cartridge door 249
- ENWW Clear jams 235 249
- Jam causes and solutions 250
- ENWW Clear jams 237 251
- ENWW Clear jams 239 253
- Avoid repeated jams 254
- Change jam recovery 255
- Solve paper-handling problems 256
- Output is curled or wrinkled 259
- Solve image-quality problems 261
- Perform the following test 262
- Clean the product 268
- Solve performance problems 271
- Solve connectivity problems 272
- Service mode functions 273
- Product resets 274
- Product cold reset 276
- Product updates 277
- 4 Parts and diagrams 281
- Supplies part numbers 282
- Accessories part numbers 283
- Assembly locations 286
- ENWW Assembly locations 273 287
- Figure 4-3 Covers 288
- ENWW Covers 275 289
- Internal assemblies (1 of 6) 290
- Internal assemblies (2 of 6) 292
- Internal assemblies (3 of 6) 294
- Internal assemblies (4 of 6) 296
- Internal assemblies (5 of 6) 298
- Internal assemblies (6 of 6) 300
- Input devices 302
- ENWW Input devices 289 303
- Alphabetical parts list 304
- Numerical parts list 307
- ENWW Numerical parts list 295 309
- A Service and support 311
- End User License Agreement 314
- Customer support 317
- Repack the product 318
- Service information form 319
- B Specifications 321
- Physical specifications 322
- Electrical specifications 322
- Acoustic specifications 322
- Environmental specifications 323
- C Regulatory information 325
- FCC regulations 326
- United States and Puerto Rico 328
- Non-U.S. returns 328
- Material restrictions 329
- European Union 329
- Chemical substances 329
- For more information 330
- Declaration of conformity 331
- Safety statements 332
- Laser statement for Finland 333
- Substances Table (China) 334
- 326 Index ENWW 340
- *CE524-90909* 342
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