Brother HL-L8350CDW User Manual page 201

Troubleshooting
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.
Colored lines across the page
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
White spots or hollow print
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
Blank page or some colors are
missing
3.7 in.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
(94 mm) ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
3.7 in.
(94 mm)
Colored spots at 3.7 in. (94mm)
Recommendation
 Identify the color causing the problem and replace the toner cartridge that
matches the color of the line (see Replacing the toner cartridges
on page 122).
To identify the color of the toner cartridge, visit http://solutions.brother.com/
to view our FAQs and troubleshooting tips.
 Install a new drum unit (see Replacing the drum unit on page 128).
 Make sure that the media type setting in the printer driver matches the type
of paper you are using (see Acceptable paper and other print media
on page 2).
 Check the machine's environment. Conditions such as high humidity can
cause hollow print (See the Product Safety Guide).
 If the problem is not solved after printing a few pages, the drum may have
foreign material, such as glue from a label, stuck on the drum surface. Clean
the drum unit (see Cleaning the drum unit on page 157).
 Install a new drum unit (see Replacing the drum unit on page 128).
 Identify the color causing the problem and put in a new toner cartridge
(see Replacing the toner cartridges on page 123). To identify the color of the
toner cartridge, visit http://solutions.brother.com/ to view our FAQs and
troubleshooting tips.
 Install a new drum unit (see Replacing the drum unit on page 128).
 If the problem is not solved after printing a few pages, the drum may have
foreign material, such as glue from a label, stuck on the drum surface. Clean
the drum unit (see Cleaning the drum unit on page 157).
 Install a new drum unit (see Replacing the drum unit on page 128).
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