User Manual

Table Of Contents

Troubleshooting

154

White streaks or bands down the

page

 Wipe the windows of LED head with a dry lint free soft cloth. (See Cleaning

the LED head on page 129.)

 Make sure that foreign material such as a torn piece of paper, sticky note or

dust is not inside the machine and around the drum unit and toner cartridge.

 Clean the drum unit. (See Large spots on the printed pages in Cleaning the

drum unit on page 133.)

 Identify the missing colour and put in a new toner cartridge. (See Replacing

the toner cartridges on page 104.)

To identify the colour of the toner cartridge, 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 130.)

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

 Replace the toner cartridge that matches the colour of the streak or band.

(See Replacing the toner cartridges on page 104.)

To identify the colour 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 112.)

To identify the colour 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 LED head with a dry lint free soft cloth. (See Cleaning

the LED head on page 129.)

Examples of poor print quality Recommendation

ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.