Troubleshooting
155
B
Coloured spots at 30 mm
Identify the colour causing the problem and put in a new toner
cartridge (see Replacing the toner cartridges on page 76).
To identify the colour of the toner cartridge, visit
http://solutions.brother.com/ to view our FAQs and
troubleshooting tips.
Toner scatter or toner stain
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 76).
To identify the colour of the toner cartridge, visit
http://solutions.brother.com/ to view our FAQs and
troubleshooting tips.
Put in a new drum unit (see Replacing the drum unit
on page 81).
The colour of your printouts is not
what you expected
To improve the colour density, calibrate the colours using first
the Touchscreen and then the printer driver (see Colour
Calibration on page 116).
To adjust the print position of colours for sharper edges,
perform the colour registration using the Touchscreen
(see Colour Registration on page 117).
Adjust the copy density and contrast if you are copying
(see Advanced User's Guide).
Make sure Toner Save mode is off in the Touchscreen or the
printer driver (see Software and Network User's Guide).
If the print quality is poor, clear the Improve Gray Color
check box in the printer driver (see Software and Network
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 and Network User's Guide).
Identify the colour causing the problem and put in a new toner
cartridge (see Replacing the toner cartridges on page 76).
To identify the colour of the toner cartridge, visit
http://solutions.brother.com/
to view our FAQs and
troubleshooting tips.
Put in a new drum unit (see Replacing the drum unit
on page 81).
Examples of poor print quality Recommendation
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
30 mm
30 mm
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
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