4. Alignment and Troubleshooting
7)
Horizontal Bands
•
Description : Dark or white horizontal stripes appear in the page. (These may occur at regular intervals down the
page.)
Cause and Check Point
Solution
The developing roller, OPC drum or other rollers in the
toner cartridge may be contaminated or deformed.
Replace the corresponding toner cartridge.
Bad contacts of HV terminals of the toner cartridge with
high voltage terminals from printer set.
Clean all HV terminals in the cartridge and on the set
frame. Ensure all toner or paper dust, particles are
removed.
NOTE
Roller Period for Horizontal Problem
Roller Description
Band Period (mm)
Defective part
Pressure Roller
69.08 mm
Fuser Unit
Charge roller
26.7 mm
OPC drum
75.4 mm
Developing roller
27.5 mm
Supply roller
37 mm
Toner Cartridge
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