HL-5350DN

Odpowiedzi na często zadawane pytania i rozwiązywanie problemów

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 a label stuck on the OPC drum surface.

Clean the drum unit as follows:

Put the print sample in front of the drum unit, and find the exact position of the poor print.
Turn the drum unit gear by hand while looking at the surface of the OPC drum (1).
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 glue on the surface comes off.

DO NOT clean the surface of the photosensitive drum with a sharp object.

If the problem still occurs even after you have cleaned the drum unit, the drum unit may be damaged. Put in a new drum unit. To see how to replace the drum unit, click here.

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