Brother DCP-L8400CDN Basic User's Manual page 136

Examples of poor print quality
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
Ghost
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
Poor fixing
Curled or wavy
128
Recommendation
 Check the machine's environment. Conditions such as low
humidity and low temperatures may cause this print quality
problem
(see Product Safety Guide).
 Make sure the media type setting in the driver matches the
type of paper you are using (see Acceptable paper and other
print media on page 30).
 Make sure the two grey levers inside the back cover are in
the up position.
 Put in a new drum unit (see Replacing the drum unit
on page 59).
 Make sure the two grey levers inside the back cover are in
the up position.
 Make sure the media type setting in the driver matches the
type of paper you are using (see Acceptable paper and other
print media on page 30).
 Choose Improve Toner Fixing mode in the printer driver
(see Software and Network User's Guide).
If this selection does not provide enough improvement,
change the printer driver setting in Media Type to a thick
setting. If you are printing an envelope, choose Env. Thick
in the media type setting.
 Choose Reduce Paper Curl mode in the printer driver
(see Software and Network User's Guide).
If the problem is not solved, choose Plain Paper in the
media type setting.
If you are printing an envelope, choose Env. Thin in the
media type setting.
 If you do not use the machine often, the paper may have
been in the paper tray too long. Turn over the stack of paper
in the paper tray. Also, fan the paper stack and then rotate
the paper 180 in the paper tray.
Store the paper where it will not be exposed to high

temperatures and high humidity.
 Open the back cover (face-up output tray) to let the printed
paper exit onto the face-up output tray.