HP LaserJet Enterprise 500 Maintenance Manual - Page 4

Adjustment Procedures, Replacement Procedures, and Illustrated Parts Lists

Page 4 highlights

Table of Contents Soft vs. Hard Reset 93 The Power On Sequence 94 CMX Controller Board Handshake Sequences 94 DC Software Initialization and Power Up 98 5 Adjustment Procedures 99 Introduction 99 List of Adjustments 99 Preparing the Printer for Maintenance 100 Returning the Printer to Normal Operation 101 Belt, Paper Feed Timing, Adjustment 102 Belt, Platen Open, Adjustment 104 Paper Drive Motor Pulley Alignment 106 Paper Scale Alignment 108 Platen Gap Adjustment 110 Platen Open Motor Pulley Alignment 112 Ribbon Guide Alignment 114 Splined Shaft Skew Adjustment 116 Paper Out Adjustment 117 Hammer Phasing Adjustment 121 Set Shuttle Speed 123 6 Replacement Procedures and Illustrated Parts Lists 125 Organization of This Chapter 125 Section I: Replacement Procedures 126 List of Removal/Installation Procedures 126 Belt, Paper Feed Timing 128 Belt, Platen Open 129 Circuit Breaker 130 Connector Shells 131 Connector Stiffening Clips 133 Control Panel Assembly, Cabinet Models 135 Control Panel Assembly, Pedestal Models 136 Controller Board (CMX 137 Cover Assembly, Hammer Bank / Ribbon Mask 139 Cover Assembly, Shuttle 141 Cover Assembly, Top, Pedestal Models 142 Dashpot 143 Ethernet Interface Assembly 144 10/100Base-T LEDs and DIP Switches 145 Fan Assembly, Cabinet Exhaust 147

  • 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

Table of Contents
Soft vs. Hard Reset
..............................................................................
93
The Power On Sequence
....................................................................
94
CMX Controller Board Handshake Sequences
.............................
94
DC Software Initialization and Power Up
......................................
98
5
Adjustment Procedures
......................................
99
Introduction
..........................................................................................
99
List of Adjustments
........................................................................
99
Preparing the Printer for Maintenance
...............................................
100
Returning the Printer to Normal Operation
........................................
101
Belt, Paper Feed Timing, Adjustment
................................................
102
Belt, Platen Open, Adjustment
...........................................................
104
Paper Drive Motor Pulley Alignment
..................................................
106
Paper Scale Alignment
......................................................................
108
Platen Gap Adjustment
......................................................................
110
Platen Open Motor Pulley Alignment
.................................................
112
Ribbon Guide Alignment
....................................................................
114
Splined Shaft Skew Adjustment
.........................................................
116
Paper Out Adjustment
.......................................................................
117
Hammer Phasing Adjustment
............................................................
121
Set Shuttle Speed
..............................................................................
123
6
Replacement Procedures
and Illustrated Parts Lists
......................................
125
Organization of This Chapter
.............................................................
125
Section I: Replacement Procedures
..................................................
126
List of Removal/Installation Procedures
......................................
126
Belt, Paper Feed Timing
.............................................................
128
Belt, Platen Open
........................................................................
129
Circuit Breaker
............................................................................
130
Connector Shells
.........................................................................
131
Connector Stiffening Clips
...........................................................
133
Control Panel Assembly, Cabinet Models
...................................
135
Control Panel Assembly, Pedestal Models
.................................
136
Controller Board (CMX)
...............................................................
137
Cover Assembly, Hammer Bank / Ribbon Mask
.........................
139
Cover Assembly, Shuttle
.............................................................
141
Cover Assembly, Top, Pedestal Models
.....................................
142
Dashpot
.......................................................................................
143
Ethernet Interface Assembly
.......................................................
144
10/100Base-T LEDs and DIP Switches
......................................
145
Fan Assembly, Cabinet Exhaust
.................................................
147