Brother International HL-2170W Users Manual - English - Page 101

Black Spots at 75 mm, Clean the drum unit as follows

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Troubleshooting Examples of poor print quality 75 mm (2.95 in.) 75 mm (2.95 in.) Recommendation „ 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: 6 a Put the print sample in front of the drum unit, and find the exact position of the poor print. White Spots on black text and graphics at 75 mm (2.95 in.) intervals 6 75 mm (2.95 in.) 75 mm (2.95 in.) b Turn the drum unit gear by hand while looking at the surface of the OPC drum (1). 1 Black Spots at 75 mm (2.95 in.) intervals c When you have found the mark on the drum that matches the print sample, wipe the surface of the OPC drum with a dry cotton swab until the dust or glue on the surface comes off. CAUTION DO NOT 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 69. 93

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Troubleshooting
93
6
White Spots on black text
and graphics at 75 mm
(2.95 in.) intervals
Black Spots at 75 mm
(2.95 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:
6
a
Put the print sample in front of the drum unit, and find the exact position of
the poor print.
b
Turn the drum unit gear by hand while looking at the surface of the OPC
drum (1).
c
When you have found the mark on the drum that matches the print sample,
wipe the surface of the OPC drum with a dry cotton swab until the dust or
glue on the surface comes off.
CAUTION
DO NOT 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 69.
Examples of poor print
quality
Recommendation
75 mm
(2.95 in.)
75 mm
(2.95 in.)
75 mm
(2.95 in.)
75 mm
(2.95 in.)
1