Samsung CLP-670N, Руководство по обслуживанию

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Alignment & Troubleshooting
Service Manual
4-58
Samsung Electronics
Vertical White Line
Cause and Check Point Solution
Check if the LSU window or internal lenses of LSU is
contaminated.
Clean the LSU window with recommended
cleaner(IPA). Clean the window with a clean cotton
swab. If dirt is inside the LSU, replace the LSU.
Check if there are scratches on the circumference of
the OPC drum.
Replace the toner cartridge.
Check if there are scratches on the circumference of
the developing roller.
Replace the toner cartridge.
Foreign objects inside the toner cartridge. Replace the toner cartridge.
Check if there are vertical scratches on the transfer
unit.
Replace the PTB unit.
Description White vertical voids in the image.
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