HL-2150N
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FAQs & Troubleshooting |
Vertical black lines appear on the printout or printed pages have toner stains down the page.
![](/g/b/img/faqend/faq00000006_023/hk/en/11917/blcline006.gif)
Please check the following points:
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Clean the corona wire inside the drum unit by sliding the green tab.
To see how to clean the corona wire of the drum unit, click here. -
Make sure the primary corona wire cleaner is at the home position.
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The drum unit may be damaged. Put in a new drum unit.
To see how to replace the drum unit, click here. -
The toner cartridge may be damaged. Put in a new toner cartridge.
To see how to replace the toner cartridge, click here.
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