Dell 1135N Service Manual - Page 104

Horizontal Black Band

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Alignment and Troubleshooting 3) Horizontal Black Band Description : Dark or blurry horizontal stripes occur in the printing periodically. (They may not occur periodically.) 1. Bad contacts of the voltage terminals to developer. Clean each voltage terminal of the Charge, Supply, Develop and Transfer roller.(remove the toner particles and paper particles) 2. The rollers of developer may be stained. OPC Drum : 75.5mm Developing Roller : 35.2mm Charging Roller : 26.7mm Supply Roller : 47.5mm Transfer Roller : 47mm Pressure Roller : 75.4mm Heat Roller : 77.5mm 1. Clean the right Gear that has relatively small gap of the teeth in the OPC. 2. If the malfunction persists, replace the developer. Service Manual 4-31

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Alignment and Troubleshooting
4-31
Service Manual
3) Horizontal Black Band
Description :
Dark or blurry horizontal stripes occur in the printing periodically.
(They may not occur periodically.)
2. The rollers of
developer may be stained.
1. Bad contacts of the voltage
terminals to developer.
Clean each voltage terminal of the
Charge, Supply, Develop and
Transfer roller.(remove the toner
particles and paper particles)
1. Clean the right Gear that has
relatively small gap of the teeth
in the OPC.
2. If the malfunction persists,
replace the developer.
OPC Drum : 75.5mm
Developing Roller : 35.2mm
Charging Roller : 26.7mm
Supply Roller : 47.5mm
Transfer Roller : 47mm
Pressure Roller : 75.4mm
Heat Roller : 77.5mm