Brother DCP-8025D Bedienungsanleitung PDF herunterladen (Seite 243)

14 - 15 TROUBLESHOOTING AND ROUTINE MAINTENANCE

White Spots on black text

and graphics at 94 mm

intervals

Black Spots at 94 mm

intervals

If the problem is not solved after printing a few pages, the drum unit may

have glue from label stock on the OPC drum surface.

Clean the drum unit as follows:

1 Position the print sample in front of the drum unit, and find the exact

position of the poor print.

2 Turn the drum unit gear by hand while looking at the surface of the

OPC drum.

Caution

Be careful not to touch the photosensitive drum with your fingers.

3 When you have located 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.

Caution

Do not try to clean the surface of the photosensitive drum with a sharp

object, such as a ball-point pen, and so on.

The drum unit may be damaged. Put in a new drum unit. (See Replacing

the drum unit

on page 14-29.)

Examples of poor print

quality

Recommendation

94 mm

Photosensitive drum

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Brother DCP-8025D Bedienungsanleitung Seite 243