Brother MFC-9140CDN User Manual page 159

Examples of poor print quality
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
Toner scatter or toner stain
The colour of your printouts is not
what you expected
Recommendation

Check the machine's environment. Conditions such as high
humidity and high temperatures may cause this print quality
problem.

Identify the colour causing the problem and put in a new
toner cartridge (see Replacing the toner cartridges
on page 74).
To identify the colour of the toner cartridge, visit us at
http://solutions.brother.com/ to view our FAQs and
troubleshooting tips.

Identify the colour causing the problem and install a new
drum unit (see Replacing the drum units on page 81).
To identify the colour of the drum unit, visit us at
http://solutions.brother.com/ to view our FAQs and
troubleshooting tips.

To improve the colour density, calibrate the colours using
first the Touchscreen and then the printer driver (see
Calibration on page 109).

To adjust the print position of colours for sharper edges,
perform an automatic colour registration using the
Touchscreen (see Auto Registration on page 110).

Adjust the copy density and contrast if you are copying
(see Advanced User's Guide: Adjusting Density and
Contrast).

Make sure Toner Save mode is off in the Touchscreen or the
printer driver (see Software User's Guide).

If the print quality is poor, clear the Improve Gray Color
check box in the printer driver (see Software User's Guide).

If the print quality of the black portion is not what you
expected, select the Enhance Black Printing check box in
the printer driver (see Software User's Guide).

Identify the colour causing the problem and put in a new
toner cartridge (see Replacing the toner cartridges
on page 74).
To identify the colour of the toner cartridge, visit us at
http://solutions.brother.com/ to view our FAQs and
troubleshooting tips.

Identify the colour causing the problem and install a new
drum unit (see Replacing the drum units on page 81).
To identify the colour of the drum unit, visit us at
http://solutions.brother.com/ to view our FAQs and
troubleshooting tips.
Troubleshooting
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