Dell 1815dn Service Manual - Page 119

Fault, Signs, Cause, Check, Solution, White Black spot, Recycled product, Never use usual alcohol.

Get Dell 1815dn - All-in-one Laser Printer PDF manuals and user guides
UPC - 000061100008
View all Dell 1815dn manuals
Add to My Manuals
Save this manual to your list of manuals

Page 119 highlights

Troubleshooting Fault White Black spot Signs Cause & Check Solution • Light or dark black 1. If light or dark periodical black dots on the image dots occur, this is because the occur periodically. developer rollers are contami - nated with foreign substance • White spots occur or paper particles. in the image period- (1) 37.7 mm interval : Charged ically. roller (2) 75.5 mm interval : OPC cycle 2. If white spots occur in a black image at intervals of 75mm, or black spots occur elsewhere, the OPC drum is damaged or foreign substance is stuck to the surface. 1. In case of 1 above Run OPC Cleaning Mode Print 4-5 times repeatedly to remove. Especially check foreign sub stance on the OPC surface, then remove them with a clean gauze moistened with IP A(Isopropyl Alcohol) not to damage OPC if necessary. Never use usual alcohol. 2. In case of 2 If they are not disappeared by running OPC Cleaning Mode Print 4-5 times. : at intervals of 37.7 mm Replace the developer. : at intervals of 75.5 mm Remove foreign substance. : Broken image Replace the developer accord ing to carelessness. 3. If a black and white or graphic image is partially broken at irregular intervals, the transfer roller's life has been expired or the transfer voltage is abnor mal. 3. In case of 3 Exchange the transfer roller because the life of the transfer roller in use has been expired. (Check the transfer voltage and readjust if different.) Recycled product • Poor appearance of the developer. • Unclean and rough printouts. • Bad background in the image. 1. Poor appearance of the developer. (1) Check the damage to label and whether different materials are used. (2) Check the appearance of parts of the developer, such as frame, hopper. 1. In case of 1 (1)If there is an evidence of disassembling the developer. (2)If materials other than normal parts of the developer are added or substituted. 2. Unclean and rough printouts. (1) Check whether foreign sub stance or toner are stuck to the terminal (contact point) of the developer. (2) Check whether the state of the terminal assembly is normal. 2. In case of 2 If there are any abnormals in connection with the situation of 1. (1) It occurs when the developer is recycled over 2 times. (2) If toner nearly being expired are collected to use, it is judged as the recycled developer. 7-26 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
Service Manual
Troubleshooting
7-26
Fault
Signs
Cause
&
Check
Solution
White Black spot
Recycled product
• Light or dark black
dots on the image
occur periodically.
• White spots occur
in the image period-
ically.
• Poor appearance of
the developer.
• Unclean and rough
printouts.
• Bad background in
the image.
1. If light or dark periodical black
dots occur, this is because the
developer rollers are contami
-
nated with foreign substance
or paper particles.
(1) 37.7 mm interval : Charged
roller
(2) 75.5 mm interval : OPC cycle
2. If white spots occur in a black
image at intervals of 75mm, or
black spots occur elsewhere,
the OPC drum is damaged or
foreign substance is stuck to
the surface.
3. If a black and white or graphic
image is partially broken at
irregular intervals, the transfer
roller's life has been expired or
the transfer voltage is abnor
-
mal.
1. Poor appearance of the devel-
oper.
(1) Check the damage to label
and whether dif ferent mate-
rials are used.
(2) Check the appearance of
parts of the developer, such
as frame, hopper.
2. Unclean and rough printouts.
(1) Check whether foreign sub -
stance or toner are stuck to
the terminal (contact point)
of the developer.
(2) Check whether the state of
the terminal assembly is
normal.
1. In case of 1 above -
Run OPC Cleaning Mode Print
4-5 times repeatedly to remove.
Especially check foreign sub
-
stance on the OPC surface, then
remove them with a clean gauze
moistened with IP
A(Isopropyl
Alcohol) not to damage OPC if
necessary.
Never use usual alcohol.
2. In case of 2
If they are not disappeared by
running OPC Cleaning Mode
Print 4-5 times.
:
at intervals of 37.7 mm -
Replace the developer.
: at intervals of 75.5 mm -
Remove foreign substance.
: Broken image -
Replace the developer accord
-
ing to carelessness.
3. In case of 3 -
Exchange the transfer roller
because the life of
the transfer
roller in use has been expired.
(Check the transfer voltage and
readjust if different.)
1. In case of 1 -
(1)If there is an evidence of disas-
sembling the developer.
(2)If materials other than normal
parts of the developer are
added or substituted.
2. In case of 2 -
If there are any abnormals in
connection with the situation of 1.
(1) It occurs when the developer
is recycled over 2 times.
(2) If toner nearly being expired
are collected to use, it is
judged as the recycled devel -
oper.