Brother MFC-9140CDN Basic User's Manual page 164

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
154
Recommendation

Check the machine's environment. Conditions such as low
humidity and low temperatures may cause this print quality
problem
(see Product Safety Guide: Choose a safe location for your
product).

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 29).

Make sure the two grey levers inside the back cover are in
the up position (1). Pull up the two grey levers until they stop.

Identify the colour causing the problem and install a new
drum unit (see Replacing the drum units on page 83).
To identify the colour of the drum unit, visit us at
http://solutions.brother.com/ to view our FAQs and
troubleshooting tips.
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