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Service Manual
Adjustment and Troubleshooting
4-28
3) Horizontal Black Bands
Description: Dark or blurry horizontal stripes occur in the printing periodically
(These may occurs at regular intervals down the page.)
1) Charge roller = 37.7 mm
2) Supply roller = 37 mm
3) Develop roller = 35.3 mm
4) Transfer roller = 45.3 mm
1. Clean the right Gear that has
relatively small tooth gap on the
OPC.
2. If the problem persists replace the
toner cartridge.
Clean all HV terminals on the cartridge
and on the set frame. Ensure all toner
or paper dust particles are removed.
1. Bad contacts on the toner
cartridge high voltage terminals.
2. The rollers in the toner
cartridge may be contaminated.
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Digital Printer
Digital Printer
Digital Printer
Digital Printer