HP LaserJet Enterprise 500 Maintenance Manual - Page 68

Troubleshooting Other Symptoms, Power Stacker, Table 3. General Symptom List

Page 68 highlights

Chapter 4 Troubleshooting Other Symptoms Table 3. General Symptom List Symptom Solution Power Stacker Printer does not detect presence of power stacker 1. Check that the power stacker is enabled under the Printer Control menu. (Refer to the Setup Guide.) If the power stacker enable/disable option does not appear in the menu, go to the next step. 2. Open the rear cabinet door. Check that the ON/OFF indicator lamp is lit. If the ON/OFF indicator is not lit, go to step 3. If the ON/OFF indicator is lit, press the ON LINE key and check that the ON LINE indicator lights. If the ON LINE indicator comes on, the stacker is detected by the printer. If the ON LINE indicator does not come on, go to step 4. 3. a) Power off the printer. b) Unfasten the cable clamp holding the stacker control panel cables. c) Disconnect the stacker power cable from the back of the stacker control panel. (See Figure 59, page 307.) d) Locate pin 1 of connector P106. (See the cable assembly drawing in Appendix A.) e) Power on the printer. f) At connector P106 check for +48 volts DC between pins 1 and 2 and +5 volts DC between pins 3 and 4. If the voltages are correct, replace the stacker control panel. If the voltages are not correct, power off the printer, remove the paper path, and disconnect the stacker power cable from the CMX controller board. (See Figure 64, page 312.) Check the continuity of the stacker power cable between P105 and P106. If the cable fails the continuity test, replace it. If the cable is OK, replace the CMX controller board. 4. Power off the printer. Remove the paper path. Disconnect stacker cables from the CMX controller board, stacker assembly, and the stacker control panel (see Figure 59, page 307). Check cables for cuts, breaks, or damaged pins. Check continuity of cables. (See Appendix A.) Replace any cable that is damaged or fails continuity test. Reconnect all stacker cables to the CMX controller board, stacker, and stacker control panel. 5. Power on the printer. Check that the ON LINE indicator lights on the stacker control panel. If the ON LINE indicator does not light, replace the stacker control panel. 6. Power on the printer. Check that the ON LINE indicator lights on the stacker control panel. If the ON LINE indicator does not light, replace the CMX controller board. 68

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
  • 104
  • 105
  • 106
  • 107
  • 108
  • 109
  • 110
  • 111
  • 112
  • 113
  • 114
  • 115
  • 116
  • 117
  • 118
  • 119
  • 120
  • 121
  • 122
  • 123
  • 124
  • 125
  • 126
  • 127
  • 128
  • 129
  • 130
  • 131
  • 132
  • 133
  • 134
  • 135
  • 136
  • 137
  • 138
  • 139
  • 140
  • 141
  • 142
  • 143
  • 144
  • 145
  • 146
  • 147
  • 148
  • 149
  • 150
  • 151
  • 152
  • 153
  • 154
  • 155
  • 156
  • 157
  • 158
  • 159
  • 160
  • 161
  • 162
  • 163
  • 164
  • 165
  • 166
  • 167
  • 168
  • 169
  • 170
  • 171
  • 172
  • 173
  • 174
  • 175
  • 176
  • 177
  • 178
  • 179
  • 180
  • 181
  • 182
  • 183
  • 184
  • 185
  • 186
  • 187
  • 188
  • 189
  • 190
  • 191
  • 192
  • 193
  • 194
  • 195
  • 196
  • 197
  • 198
  • 199
  • 200
  • 201
  • 202
  • 203
  • 204
  • 205
  • 206
  • 207
  • 208
  • 209
  • 210
  • 211
  • 212
  • 213
  • 214
  • 215
  • 216
  • 217
  • 218
  • 219
  • 220
  • 221
  • 222
  • 223
  • 224
  • 225
  • 226
  • 227
  • 228
  • 229
  • 230
  • 231
  • 232
  • 233
  • 234
  • 235
  • 236
  • 237
  • 238
  • 239
  • 240
  • 241
  • 242
  • 243
  • 244
  • 245
  • 246
  • 247
  • 248
  • 249
  • 250
  • 251
  • 252
  • 253
  • 254
  • 255
  • 256
  • 257
  • 258
  • 259
  • 260
  • 261
  • 262
  • 263
  • 264
  • 265
  • 266
  • 267
  • 268
  • 269
  • 270
  • 271
  • 272
  • 273
  • 274
  • 275
  • 276
  • 277
  • 278
  • 279
  • 280
  • 281
  • 282
  • 283
  • 284
  • 285
  • 286
  • 287
  • 288
  • 289
  • 290
  • 291
  • 292
  • 293
  • 294
  • 295
  • 296
  • 297
  • 298
  • 299
  • 300
  • 301
  • 302
  • 303
  • 304
  • 305
  • 306
  • 307
  • 308
  • 309
  • 310
  • 311
  • 312
  • 313
  • 314
  • 315
  • 316
  • 317
  • 318
  • 319
  • 320
  • 321
  • 322
  • 323
  • 324
  • 325
  • 326
  • 327
  • 328
  • 329
  • 330
  • 331
  • 332
  • 333
  • 334
  • 335
  • 336
  • 337
  • 338
  • 339
  • 340
  • 341
  • 342
  • 343
  • 344
  • 345
  • 346
  • 347
  • 348
  • 349
  • 350
  • 351
  • 352
  • 353
  • 354
  • 355
  • 356

68
Chapter
4
Troubleshooting Other Symptoms
Power Stacker
Printer does not detect presence
of power stacker
1.
Check that the power stacker is enabled under the Printer
Control menu. (Refer to the
Setup Guide.)
If the power stacker
enable/disable option does not appear in the menu, go to the
next step.
2.
Open the rear cabinet door. Check that the ON/OFF indicator
lamp is lit. If the ON/OFF indicator is not lit, go to step 3. If the
ON/OFF indicator is lit, press the ON LINE key and check that
the ON LINE indicator lights. If the ON LINE indicator comes on,
the stacker is detected by the printer. If the ON LINE indicator
does not come on, go to step 4.
3.
a) Power off the printer.
b) Unfasten the cable clamp holding the stacker control panel
cables.
c) Disconnect the stacker power cable from the back of the
stacker control panel. (See Figure 59, page 307.)
d) Locate pin 1 of connector P106. (See the cable assembly
drawing in Appendix A.)
e) Power on the printer.
f) At connector P106 check for +48 volts DC between pins 1 and
2 and +5 volts DC between pins 3 and 4. If the voltages are
correct, replace the stacker control panel. If the voltages are not
correct, power off the printer, remove the paper path, and
disconnect the stacker power cable from the CMX controller
board. (See Figure 64, page 312.) Check the continuity of the
stacker power cable between P105 and P106. If the cable fails
the continuity test, replace it. If the cable is OK, replace the CMX
controller board.
4.
Power off the printer. Remove the paper path. Disconnect
stacker cables from the CMX controller board, stacker assembly,
and the stacker control panel (see Figure 59, page 307). Check
cables for cuts, breaks, or damaged pins. Check continuity of
cables. (See Appendix A.) Replace any cable that is damaged or
fails continuity test. Reconnect all stacker cables to the CMX
controller board, stacker, and stacker control panel.
5.
Power on the printer. Check that the ON LINE indicator lights on
the stacker control panel. If the ON LINE indicator does not light,
replace the stacker control panel.
6.
Power on the printer. Check that the ON LINE indicator lights on
the stacker control panel. If the ON LINE indicator does not light,
replace the CMX controller board.
Table 3. General Symptom List
Symptom
Solution