Lexmark E330 Service Manual - Page 96

Black

Get Lexmark E330 PDF manuals and user guides View all Lexmark E330 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 96 highlights

4505 Black page Note: Incorrect laser exposure or incorrect charging of the photoconductor causes an all black page. Always verify the same results from a different print cartridge assembly and developer before proceeding. FRU Toner electrodes (not a FRU) LVPS/HVPS board Controller card Action Check the electrodes below the print cartridge assembly for contamination or damage. Correct as necessary. Check continuity between the cable connections on the contact tips below the print cartridge assembly. • If continuity fails, call the next level of service. With the printer off, disconnect the LVPS/HVPS cable from J7 on the controller card. Turn the printer on and verify +24 V dc on pin 8 of the cable. Verify ground on pin 7. • If the voltage is incorrect, replace LVPS/HVPS board. • If voltage is correct and the toner electrodes are good, replace the controller card. 2-68 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
2-68
Service Manual
4505
Black page
Note:
Incorrect laser exposure or incorrect charging of the
photoconductor causes an all black page. Always verify the
same results from a different print cartridge assembly and
developer before proceeding.
FRU
Action
Toner electrodes (not a FRU)
Check the electrodes below the print
cartridge assembly for
contamination or damage. Correct
as necessary.
Check continuity between the cable
connections on the contact tips
below the print cartridge assembly.
•
If continuity fails, call the next level
of service.
LVPS/HVPS board
Controller card
With the printer off, disconnect the
LVPS/HVPS cable from J7 on the
controller card.
Turn the printer on and verify
+24 V dc on pin 8 of the cable.
Verify ground on pin 7.
•
If the voltage is incorrect, replace
LVPS/HVPS board.
•
If voltage is correct and the toner
electrodes are good, replace the
controller card.