MFC-9420CN
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FAQs & Troubleshooting |
![](/g/b/img/product/mfc9420cn_all.jpg)
MFC-9420CN
Date: 10/05/2013 ID: faq00000213_007
White streaks or bands appears down the page.
![](/g/b/img/faqend/faq00000213_007/in/en/91874/27_pq_03.gif)
Please check the following points:
- Clean the laser glass.
To see how to clean the inside of the machine, click here.
- Identify the missing color and replace that toner cartridge.
To see how to replace the toner cartridge, click here.
- The toner has probably reached the end of its life. However, when you see a white vertical line on the toner roller, try the following procedure.
- Cut a sheet approx. 1.97 in. x 1.97 in. (50 mm x 50 mm) out of a transparency film.
- Insert the film about 2.54 in. (10 mm) into the gap between the toner roller and the blade.
- Slide the film and pull it out as shown below.
![](/g/b/img/faqend/faq00000213_007/in/en/91873/27_109.gif)
MFC-9420CN
If you need further assistance, please contact Brother customer service:
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