Operation Manual

Troubleshooting

199

Coloured lines across the page

 Identify the colour causing the problem and replace the toner cartridge that

matches the colour of the line (see Replacing the toner cartridges

on page 127).

To identify the colour 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 133).

White spots or hollow print

 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 163).

 Install a new drum unit (see Replacing the drum unit on page 133).

Blank page or some colours are

missing

 Identify the colour causing the problem and put in a new toner cartridge

(see Replacing the toner cartridges on page 128). To identify the colour 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 133).

Coloured spots at 94mm

 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 163).

 Install a new drum unit (see Replacing the drum unit on page 133).

Examples of poor print quality Recommendation

ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.

94 mm