HL-4050CDN
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FAQs & Troubleshooting |
Colored streaks or bands down the page.
![](/g/b/img/faqend/faq00000006_020/th/en/6683/cldstrk1.gif)
Please check the following points:
-
Identify the missing color and put in a new toner cartridge.
To see how to Replace a toner cartridge, click here. -
Clean all four corona wires (one for each color) inside the drum unit by sliding the green tab.
To see how to clean the corona, click here. -
Make sure the corona wire cleaners are at their home positions.
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Put in a new drum unit.
To see how to replace the drum unit, click here.
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