Lexmark X500n Service Manual - Page 102

White line I service check, White line II service check

Page 102 highlights

7100-XXX White line I service check Vertical white line appears in a specific color area when print quality test print is run. Problem area 1 Test print 2 Toner cartridge Action Print the maintenance page. See "Printing the maintenance and configuration pages" on page 3-3. White line appears on specific color. • Developer roller of specific toner cartridge is dirty. Remove foreign particle adhering to specific toner cartridge developer roller. • Developer roller surface is damaged. Replace problem toner cartridge. White line II service check Vertical white line appears from leading edge to trailing edge of printed image. Problem area 1 Laser unit assembly (printhead) 2 Toner cartridge Action Dust-proof glass of laser unit is smeared with toner or foreign particles. Clean glass: • Remove toner cartridges and photodeveloper cartridge. See "Photodeveloper cartridge removal" on page 4-8. • Open dust-proof glass cover. • Clean glass. There are foreign particles adhering to laser beam opening of printhead. Clean laser beam opening. Foreign particles mixed in toner cartridge. Replace faulty cartridge. 2-64 Service Manual

  • 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

2-64
Service Manual
7100-XXX
White line I service check
Vertical white line appears in a specific color area when print quality test print is run.
White line II service check
Vertical white line appears from leading edge to trailing edge of printed image.
Problem area
Action
1
Test print
Print the maintenance page. See
“Printing the maintenance
and configuration pages” on page 3-3
. White line appears
on specific color.
2
Toner cartridge
Developer roller of specific toner cartridge is dirty. Remove
foreign particle adhering to specific toner cartridge
developer roller.
Developer roller surface is damaged. Replace problem
toner cartridge.
Problem area
Action
1
Laser unit assembly (printhead)
Dust-proof glass of laser unit is smeared with toner or foreign
particles. Clean glass:
Remove toner cartridges and photodeveloper cartridge.
See
“Photodeveloper cartridge removal” on page 4-8
.
Open dust-proof glass cover.
Clean glass.
There are foreign particles adhering to laser beam opening of
printhead. Clean laser beam opening.
2
Toner cartridge
Foreign particles mixed in toner cartridge. Replace faulty
cartridge.