Brother HL-2070N User Manual page 83

Examples of poor print
quality
75 mm
(3.0 in.)
75 mm
(3.0 in.)
White Spots on black text and
graphics at 75 mm
(3.0 in.) intervals
75 mm
(3.0 in.)
75 mm
(3.0 in.)
Black Spots at 75 mm
(3.0 in.) intervals
Recommendation
■
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.
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.
Note
Do not try to clean the surface of the photosensitive drum with a sharp object.
■
The drum unit may be damaged. Put in a new drum unit. See Replacing the drum
unit on page 5-8.
Troubleshooting
6
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