HL-5250DN
常见问题解答与故障排除 |
HL-5250DN
日期: 2013-05-10 ID: faq00000216_005
White spots on black text and graphics or black spots appear at 94 mm (3.7 in.) intervals.
If the problem is not solved after printing a few pages, the drum unit may have glue from the label stuck on the OPC drum surface.
Clean the drum unit as follows:
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Put the print sample in front of the drum unit, and find the exact position of the poor print.
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Turn the drum unit gear by hand while looking at the surface of the OPC drum (1).
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When you have found the mark on the drum that matches the print sample, wipe the surface of the OPC drum with a cotton swab until the dust or paper powder on the surface comes off.
DO NOT clean the surface of the photosensitive drum with a sharp object.
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