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Troubleshooting and routine maintenance
53
B
Black toner marks across the
page
Make sure that you use paper that meets our specifications. (See
Acceptable paper and other print media on page 12.)
If you use label sheets for laser machines, the glue from the sheets
may sometimes stick to the OPC drum surface. Clean the drum unit.
(See Cleaning the drum unit on page 68.)
Do not use paper that has clips or staples because they will scratch
the surface of the drum.
If the unpacked drum unit is in direct sunlight or room light, the unit
may be damaged.
The toner cartridge may be damaged. Put in a new toner cartridge.
(See Replacing a toner cartridge on page 70.)
The drum unit may be damaged. Put in a new drum unit. (See
Replacing the drum unit on page 74.)
Line across the page
Clean the laser scanner window and the primary corona wire inside
the drum unit. (See Cleaning the laser scanner window on page 64
and Cleaning the corona wire on page 66.)
The drum unit may be damaged. Put in a new drum unit. (See
Replacing the drum unit on page 74.)
Black lines down the page
Printed pages have toner
stains down the page
Clean the primary corona wire inside the drum unit by sliding the
green tab. Be sure to return the green tab to the home position (a).
(See Cleaning the corona wire on page 66.)
The toner cartridge may be damaged. Put in a new toner cartridge.
(See Replacing a toner cartridge on page 70.)
The drum unit may be damaged. Put in a new drum unit. (See
Replacing the drum unit on page 74.)
The fuser unit may be smudged. Call Brother Customer Service at
1-877-BROTHER (1-877-276-8437) (in USA) or 1-877-BROTHER (in
Canada).
Examples of poor print
quality
Recommendation
ABCDEFGH
abcdefghijk
ABCD
abcde
01234
ABCDEFGH
abcdefghijk
ABCD
abcde
01234
ABCDEFGH
abcdefghijk
ABCD
abcde
01234
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