HP DJ T770 T1200 Service Manual.pdf

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HP Designjet T770 & T1200 printer series
Service manual (v.3, 2009-10-21)
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© 2009 Hewlett-Packard Development
Company, L.P.
Table of contents
1 Troubleshooting
Using the Front Panel ........................................................................................................................... 2
General Troubleshooting ...................................................................................................................... 3
The Media Basket was damaged during printer setup ......................................................................... 5
Print quality troubleshooting ................................................................................................................. 6
Ink Supplies Troubleshooting ............................................................................................................. 31
Connectivity troubleshooting .............................................................................................................. 46
2 System Error Codes
Introduction ......................................................................................................................................... 52
Printer logs ......................................................................................................................................... 52
What to do if the Front Panel is blank ................................................................................................ 53
Continuable and Non-Continuable Error Codes ................................................................................. 54
System Error Code Brief Descriptions ................................................................................................ 54
System Error Codes—Full Descriptions ............................................................................................. 56
Appendix A: How to troubleshoot SE 79:04 ....................................................................................... 73
Appendix B: Updating firmware in diagnostics boot mode ................................................................. 84
Appendix C: Obtaining the printer log and the diagnostics package .................................................. 85
3 Diagnostics Menu
Introduction ......................................................................................................................................... 88
Diagnostic Tests and Utilities ............................................................................................................. 88
4 Service Menu
Introduction ....................................................................................................................................... 122
Service Utilities ................................................................................................................................. 122
Service Calibrations ......................................................................................................................... 138
5 Parts and Diagrams
Printer Support ................................................................................................................................. 153
Center Covers (Front) ...................................................................................................................... 155
Roll Covers ....................................................................................................................................... 157
Center Covers (Rear) ....................................................................................................................... 159
Right Cover ...................................................................................................................................... 161
Left Cover ......................................................................................................................................... 163
Right Hand Assemblies .................................................................................................................... 165
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Left Hand Assemblies ...................................................................................................................... 167
Carriage Assembly ........................................................................................................................... 169
Scan-Axis Assemblies ...................................................................................................................... 171
Paper Path Assemblies (Front) ........................................................................................................ 173
Paper Path Assemblies (Rear) ......................................................................................................... 175
Roll Supports .................................................................................................................................... 177
Tool Kits ........................................................................................................................................... 179
Miscellaneous Parts ......................................................................................................................... 180
6 Removal and Installation
Introduction ....................................................................................................................................... 184
Service Calibration Guide to Removal and Installation .................................................................... 185
Belt Assembly ................................................................................................................................... 188
Bin Assembly .................................................................................................................................... 188
Bi-stable Springs (T1200 only) ......................................................................................................... 190
Bumpers, Left and Right ................................................................................................................... 196
Cable Harness .................................................................................................................................. 199
Carriage and Cutter Assembly ......................................................................................................... 205
Carriage Bushing, Rear .................................................................................................................... 213
Carriage Cover and Carriage Latch ................................................................................................. 215
Carriage Rail Oiler ............................................................................................................................ 219
Carriage PCA ................................................................................................................................... 220
Cleanout ........................................................................................................................................... 225
Converger ......................................................................................................................................... 226
Cover, Front ..................................................................................................................................... 228
Cover, Left ........................................................................................................................................ 229
Cover, Rear ...................................................................................................................................... 233
Cover, Right ..................................................................................................................................... 234
Cover, Top ........................................................................................................................................ 237
Cutter Assembly ............................................................................................................................... 240
Drop Detector ................................................................................................................................... 243
EE Box ............................................................................................................................................. 244
Electronics Module Main PCA and PSU .......................................................................................... 247
Encoder Disk and Encoder Sensor .................................................................................................. 250
Encoder Strip .................................................................................................................................... 252
Encoder Strip, spring and attachment nut ........................................................................................ 253
Formatter .......................................................................................................................................... 255
Freewheel Assembly ........................................................................................................................ 256
Front Panel ....................................................................................................................................... 258
Front Trim, Left ................................................................................................................................. 260
Front Trim, Right .............................................................................................................................. 262
Full Bleed Foam ............................................................................................................................... 263
Hard Disk Drive ................................................................................................................................ 264
Ink Cartridge Door, Left .................................................................................................................... 265
Ink Cartridge Door, Right .................................................................................................................. 266
Ink Supply Station, Left .................................................................................................................... 268
Ink Supply Tubes .............................................................................................................................. 272
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Ink Supply Tubes Support Rail ......................................................................................................... 279
Line Sensor ...................................................................................................................................... 280
Media Advance Drive ....................................................................................................................... 286
Media Lever ...................................................................................................................................... 292
Media Lever Position Sensor ........................................................................................................... 293
Media Output Assembly ................................................................................................................... 295
Out-of-paper Sensor ......................................................................................................................... 296
Panel, Left ........................................................................................................................................ 299
Pen to Paper Space (PPS) Solenoid ................................................................................................ 300
Pinch Arm Assembly ........................................................................................................................ 302
Pinchwheel Assembly ...................................................................................................................... 304
Print Zone Overdrive ........................................................................................................................ 312
PSU .................................................................................................................................................. 317
Real-time Clock Battery .................................................................................................................... 318
Roll Cover Bumpers, Lower ............................................................................................................. 318
Roll Cover Bumpers, Upper ............................................................................................................. 321
Roll Cover, Lower (T1200 only) ........................................................................................................ 324
Roll Cover, Upper ............................................................................................................................. 327
Roll Guide, Left ................................................................................................................................. 328
Roll Guide, Right .............................................................................................................................. 329
Roll Support, Lower Left (T1200 only) .............................................................................................. 330
Roll Support, Lower Right (T1200 only) ........................................................................................... 331
Roll Support Sensor, Lower Left (T1200 only) ................................................................................. 333
Roll Support Sensor, Upper Left ...................................................................................................... 333
Roll Support, Upper Left ................................................................................................................... 334
Roll Support, Upper Right ................................................................................................................ 336
Scan-axis Motor ............................................................................................................................... 337
Service Station ................................................................................................................................. 341
Single Sheet Sensor ......................................................................................................................... 345
Spindle ............................................................................................................................................. 346
Spittoon, Left .................................................................................................................................... 347
Starwheel Assembly ......................................................................................................................... 348
Starwheel Lifter, Left ........................................................................................................................ 350
Starwheel Lifter, Right ...................................................................................................................... 351
Starwheel Motor ............................................................................................................................... 354
Trailing Cable ................................................................................................................................... 356
Wall Spacers .................................................................................................................................... 363
Window ............................................................................................................................................. 365
Window Position Sensor .................................................................................................................. 368
7 Preventive Maintenance
Preventive Maintenance ................................................................................................................... 371
Preventive Maintenance Kits ............................................................................................................ 376
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