Brother MFC-9330CDW - Manual (Page 151)

Troubleshooting
137
B
Colored spots at 3.7 in. (94 mm)
 If the problem is not solved after printing a few blank pages,
foreign material, such as glue from a label, may be stuck on
the drum surface. Clean the drum unit (see Advanced User's
Guide: Cleaning the drum unit).
 Identify the color causing the problem and install a new drum
unit (see Replacing the drum units on page 86).
To identify the color of the drum unit, visit us at
http://solutions.brother.com/ to view our FAQs and
troubleshooting tips.
Colored spots at 0.9 in. (24 mm)
 Identify the color causing the problem and put in a new toner
cartridge (see Replacing the toner cartridges on page 76).
To identify the color of the toner cartridge, visit us at
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 color causing the problem and put in a new toner
cartridge (see Replacing the toner cartridges on page 76).
To identify the color of the toner cartridge, visit us at
http://solutions.brother.com/ to view our FAQs and
troubleshooting tips.
 Identify the color causing the problem and install a new drum
unit (see Replacing the drum units on page 86).
To identify the color of the drum unit, visit us at
http://solutions.brother.com/ to view our FAQs and
troubleshooting tips.
Examples of poor print quality Recommendation
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
3.7 in.
(94 mm)
3.7 in.
(94 mm)
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. 0.9 in.
(24 mm)
0.9 in.
(24 mm)
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.