Samsung ML-1665 Service Manual - Page 74

Horizontal Black Band, Description

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Alignment and Troubleshooting 3) Horizontal Black Band Description : D ark 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 = 62.9mm Developing Roller = 35.1mm Charging Roller = 26.7mm Supply Roller = 47mm Transfer Roller = 39.2mm Pressure Roller = 75.4mm Fusing 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 4-26 Samsung Electronics

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Alignment and Troubleshooting
Service Manual
4-26
Samsung Electronics
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 = 62.9mm
Developing Roller = 35.1mm
Charging Roller = 26.7m
m
Supply Roller = 47mm
Transfer Roller = 39.2mm
Pressure Roller = 75.4mm
Fusing Roller = 77.5mm