Brother MFC-9450CDN User Manual page 130

Examples of poor print
quality
White lines or ribbing down the
page on duplex print
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
Note
Position B is only for duplex
printing with recycled paper
when the temperature and
humidity are low.
120
Recommendation
Choose Thin Paper mode in the printer driver and re-send the print
job.
If the problem is not solved after printing a few pages, follow these
steps:
a
Open the back cover.
b
Pull down the two grey levers, one on the left-hand side and one
on the right-hand side, to position B as shown in the illustration
below.
c
Close the back cover.
d
Choose Plain Paper mode in the printer driver and re-send the
print job.
e
If the problem is not solved after printing a few pages, choose
Thin Paper mode in the printer driver and re-send the print job.
Note
When you have finished printing, open the back cover and reset the
two grey levers back to the original position.
Use thicker paper than you are now using.