Brother DCP-9010CN User Manual

Page 57

Troubleshooting and routine maintenance

White streaks or bands down
the page

Wipe the windows of all four LED heads with a dry lint free soft cloth.
(See Cleaning the LED heads on page 68.)

Clean all four drum units. (See Cleaning the drum unit on page 70.)

Identify the missing colour and put in a new toner cartridge. (See
Replacing a Toner cartridge on page 79.)
You may only need to replace one toner cartridge to solve the print
problem. To identify which toner cartridge needs to be replaced,
please visit us at http://solutions.brother.com/ to view our FAQs and
troubleshooting tips.

Coloured streaks or bands
down the page

Clean all four corona wires (one for each colour) inside the drum unit
by sliding the green tab. (See Cleaning the corona wires on page 69.)

Make sure the corona wire cleaners are at their home positions (a).

Clean the scanner glass and scanner glass strip. (See Cleaning the
scanner glass on page 67.)

Replace the toner cartridge that matches the colour of the streak or
band. (See Replacing a Toner cartridge on page 79.)
You may only need to replace one toner cartridge to solve the print
problem. To identify which toner cartridge needs to be replaced,
please visit us at http://solutions.brother.com/ to view our FAQs and
troubleshooting tips.

Put in a new drum unit. (See Replacing the drum units on page 86.)
You may only need to replace one drum unit to solve the print
problem. To identify which drum needs to be replaced, please visit us
at http://solutions.brother.com/ to view our FAQs and troubleshooting
tips.

Vertical streaks in a light
background

Wipe the windows of all four LED heads with a dry lint free soft cloth.
(See Cleaning the LED heads on page 68.)

Examples of poor print
quality

Recommendation

ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.