Dell 1815dn Service Manual - Page 91
Abnormal Image Printing and Defective Roller, OPC Drum, Charge Roller, Supply Roller
UPC - 000061100008
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6.8 Abnormal Image Printing and Defective Roller If abnormal image prints periodically, check the parts shown below. Alignment & Adjustments 2 6 34 1 7 5 1 OPC Drum 2 Charge Roller 3 Supply Roller 4 Developing Roller 5 Transfer Roller 6 Heat Roller 7 Pressure Roller No Roller Abnormal image period Kind of abnormal image 1 OPC Drum 75.5mm White spot, Block spot 2 Charge Roller 37.7mm Black spot 3 Supply Roller 44.9mm Horizontal density band 4 Develop Roller 35.2mm Horizontal density band 5 Transfer Roller 47.1mm Black side contamination/transfer fault 6 Heat Roller 77.8mm Black spot and fuser ghost 7 Pressure Roller 75.4mm Black side contamination Service Manual 6-21
Alignment & Adjustments
Service Manual
6-21
6.8 Abnormal Image Printing and Defective Roller
If abnormal image prints periodically, check the parts shown below.
No
Roller
Abnormal image period
Kind of abnormal image
1
OPC Drum
75.5mm
White spot, Block spot
2
Charge Roller
37.7mm
Black spot
3
Supply Roller
44.9mm
Horizontal density band
4
Develop Roller
35.2mm
Horizontal density band
5
Transfer Roller
47.1mm
Black side contamination/transfer fault
6
Heat Roller
77.8mm
Black spot and fuser ghost
7
Pressure Roller
75.4mm
Black side contamination
1
2
3
4
OPC Drum
Charge Roller
Supply Roller
Developing Roller
5
6
7
Transfer Roller
Heat Roller
Pressure Roller
1
2
3
4
5
6
7