Improving The Print Quality - Brother MFC-9125CN User Manual

Other
Difficulties
The machine will not turn on.

Improving the print quality

If you have a print quality problem, print a test page first (Menu, 4, 2, 3). If the printout looks good,
the problem is probably not the machine. Check the interface cable connections or try printing a
different document. If the printout or test page printed from the machine has a quality problem,
check the following steps first. And then, if you still have a print quality problem, check the chart
below and follow the recommendation.
a
Check that you use the paper that meets our specifications. (See Acceptable paper and other
print media on page 18.)
Note
To get the best print quality, we suggest using the recommended paper. (See Acceptable
paper and other print media on page 18.)
b
Check that the drum units and toner cartridges are installed correctly.
Examples of poor print
quality
White lines, bands or ribbing
across the page
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
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Suggestions
Adverse conditions on the power connection (such as lightning or a power surge)
may have triggered the machine's internal safety mechanisms. Turn the machine
off and unplug the power cord. Wait for ten minutes, then plug in the power cord
and turn the machine on.
If the problem is not solved, turn off the machine. Plug the power cord into a
different known working outlet and turn on the machine.
Recommendation
 Put in a new drum unit. (See Replacing the drum units on page 178.)
You may only need to replace one drum unit to solve the print
problem. To identify which drum needs to be replaced, please visit us
at http://solutions.brother.com/ to view our FAQs and troubleshooting
tips.
C