134 white streaks or bands down the page – Brother MFC-9120CN User Manual

Page 150

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134

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 156.)

Clean all four drum units. (See Cleaning the drum unit on page 159.)

Identify the missing color and put in a new toner cartridge. (See
Replacing a Toner cartridge on page 168.)
To identify the color of the toner cartridge, visit us at
http://solutions.brother.com/ to view our FAQs and troubleshooting
tips.

Colored streaks or bands down
the page

Clean all four corona wires (one for each color) inside the drum unit
by sliding the green tab. (See Cleaning the corona wires
on page 157.)

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

Clean the scanner glass and scanner glass strip. (See Cleaning the
scanner on page 155.)

Replace the toner cartridge that matches the color of the streak or
band. (See Replacing a Toner cartridge on page 168.)
To identify the color of the toner cartridge, 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 174.)
To identify the color of the drum unit, 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 156.)

Examples of poor print
quality

Recommendation

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

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This manual is related to the following products:

MFC-9320CW

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