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Troubleshooting
135
B
Colored streaks or bands down the
page
Wipe the windows of all four LED heads with a dry lint free
soft cloth (see Advanced User's Guide: Cleaning the LED
heads).
Wipe the scanner glass strip with a dry lint free soft cloth
(see Advanced User's Guide: Cleaning the scanner).
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 82).
Make sure the green tab of the corona wire is at the home
position (a)(1).
Replace the toner cartridge that matches the color of the
streak or band (see Replacing the toner cartridges
on page 76).
To identify the color of the toner cartridge, visit us at
http://solutions.brother.com/
to view our FAQs and
troubleshooting tips.
The drum unit may be damaged. Install a new drum unit (see
Replacing the drum units on page 86.)
To identify the color of the drum unit, visit us at
http://solutions.brother.com/
to view our FAQs and
troubleshooting tips.
Examples of poor print quality Recommendation
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