80
Black lines down the page
Printed pages have toner
stains down the page
Clean the corona wire inside the drum unit by sliding the blue tab. Be
sure to return the blue tab to the home position (a). (See Cleaning the
corona wire on page 96.)
The toner cartridge may be damaged. Put in a new toner cartridge.
(See Replacing a toner cartridge on page 101.)
The drum unit may be damaged. Put in a new drum unit. (See
Replacing the drum unit on page 103.)
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).
Poor fixing
Open the back cover and make sure that the two blue levers on the
left and right hand sides are in the up position.
Choose Improve Toner Fixing mode in the printer driver. (See Other
Print Options (for Windows
®
) or Print Settings (for Macintosh
®
) in the
Software User’s Guide on the CD-ROM.)
If this selection does not provide enough improvement, choose
Thicker Paper in Media Type settings.
Examples of poor print
quality
Recommendation
ABCDEFGH
abcdefghijk
ABCD
abcde
01234
ABCDEFGH
abcdefghijk
ABCD
abcde
01234
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