HP LaserJet Enterprise 500 Maintenance Manual - Page 76

Troubleshooting Other Symptoms, Printer Operation, Table 3. General Symptom List

Page 76 highlights

Chapter 4 Troubleshooting Other Symptoms Symptom Downloads consistently fail Flash SIMM won't copy Table 3. General Symptom List Solution Printer Operation NOTE: Most download problems are detected by software during the procedure and communicated by LCD messages. If downloads fail consistently with no messages or with erratic messages, suspect a hardware failure. 1. Power off the printer. Remove the paper path or pedestal top cover. Check the I/O cable connections from the host to the printer. Check the parallel cable connection at J112 on the CMX controller board. Inspect all cables for damaged, bent, broken, or burnt pins. Replace any damaged cables. Reconnect all I/O cables; make sure all connections are clean and tight. 2. Remove the flash SIMMs. Inspect the flash SIMM sockets on the CMX controller board. If any socket pins are bent or damaged, replace the CMX controller board. 3. Check that customer has the right size SIMMs for the emulation. (See page 166) Install SIMMs that support the emulation software. 4. Power up the printer. Download the emulation (page 129). If the download fails, activate the Boot Diagnostics Menu (page 87) and run MISC UTILITIES / RUN MEMORY TESTS. If memory fails test, replace the DRAM. If memory tests OK, replace the flash SIMM(s). 5. Power up the printer. Download the emulation (page 129). If the download fails, replace the CMX controller board. 1. Power off the printer. Remove the flash SIMMs. Inspect the flash SIMM sockets on the CMX controller board. If any SIMM socket pins are bent or damaged, replace the CMX controller board. 2. Make sure the blank SIMM is the same size as the SIMM to be copied. Install the SIMMs, making sure they are fully and correctly seated. Power on the printer. From the Boot Diagnostics menu, select and run MISC UTILITIES / COPY FLASH SIMMS. (See page 87.) If the DESTINATION NOT DETECTED message appears, the blank SIMM is not a type supported by the boot code on the original SIMM. If SOURCE LARGER THAN DESTINATION appears, the blank SIMM is not large enough to contain the code on the original SIMM. If the SIMM does not copy or the ERROR WRITING TO FLASH message appears, replace the blank SIMM. 3. Power on the printer. From the Boot Diagnostics menu, select and run MISC UTILITIES / COPY FLASH SIMMS. If the new SIMM does not copy, replace the CMX controller board. 76

  • 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

76
Chapter
4
Troubleshooting Other Symptoms
Printer Operation
Downloads consistently fail
NOTE:
Most download problems are detected by software during
the procedure and communicated by LCD messages. If
downloads fail consistently with no messages or with erratic
messages, suspect a hardware failure.
1.
Power off the printer. Remove the paper path or pedestal top
cover. Check the I/O cable connections from the host to the
printer. Check the parallel cable connection at J112 on the CMX
controller board. Inspect all cables for damaged, bent, broken, or
burnt pins. Replace any damaged cables. Reconnect all I/O
cables; make sure all connections are clean and tight.
2.
Remove the flash SIMMs. Inspect the flash SIMM sockets on the
CMX controller board. If any socket pins are bent or damaged,
replace the CMX controller board.
3.
Check that customer has the right size SIMMs for the emulation.
(See page 166) Install SIMMs that support the emulation
software.
4.
Power up the printer. Download the emulation (page 129). If the
download fails, activate the Boot Diagnostics Menu (page 87)
and run MISC UTILITIES / RUN MEMORY TESTS. If memory
fails test, replace the DRAM. If memory tests OK, replace the
flash SIMM(s).
5.
Power up the printer. Download the emulation (page 129). If the
download fails, replace the CMX controller board.
Flash SIMM won’t copy
1.
Power off the printer. Remove the flash SIMMs. Inspect the flash
SIMM sockets on the CMX controller board. If any SIMM socket
pins are bent or damaged, replace the CMX controller board.
2.
Make sure the blank SIMM is the same size as the SIMM to be
copied. Install the SIMMs, making sure they are fully and
correctly seated. Power on the printer. From the Boot Diagnostics
menu, select and run MISC UTILITIES / COPY FLASH SIMMS.
(See page 87.) If the DESTINATION NOT DETECTED message
appears, the blank SIMM is not a type supported by the boot
code on the original SIMM. If SOURCE LARGER THAN
DESTINATION appears, the blank SIMM is not large enough to
contain the code on the original SIMM. If the SIMM does not copy
or the ERROR WRITING TO FLASH message appears, replace
the blank SIMM.
3.
Power on the printer. From the Boot Diagnostics menu, select
and run MISC UTILITIES / COPY FLASH SIMMS. If the new
SIMM does not copy, replace the CMX controller board.
Table 3. General Symptom List
Symptom
Solution