Samsung CLP-670N, Service Manual

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Alignment & Troubleshooting
Service Manual
4-61
Samsung Electronics
Contamination on the front of the page
Cause and Check Point Solution
Toner leakage due to improperly sealed toner cartridge. Replace the toner cartridge.
Poor OPC cleaning.
Replace the toner cartridge.
Rollers and drum are dirty or defective.
Identify the roller which may cause the problem by
comparing the period of the contamination on images
with the size of rollers. Clean any dirt from the roller or
replace the dirty roller or part.
Description The front page of the printed page is stained.
Horizontal Bands
Cause and Check Point Solution
The developing roller, OPC drum or other rollers in the
toner cartridge may be contaminated or deformed.
Replace the toner cartridge.
Contamination of the Gap-Ring - regular intervals
38.9mm Clean the gap ring, or replace it. Or replace the 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.
Description
Dark or white horizontal stripes appear in the page.
(These may occur at regular intervals down the page.) Vertical Black Line and Ban d
Vertical White Line
Contamination on back of pag e Dark image or Black
Blank Page Poor fusing
Horizontal Bands
Uneven Density
Vertical Black Line and Ban d
Vertical White Line
Contamination on back of pag e Dark image or Black
Blank Page Poor fusing
Horizontal Bands
Uneven Density