HL-1250
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FAQs & Troubleshooting |
Vertical black lines appear on the printout.
![](/g/b/img/faqend/faq00000006_016/sg/en/90024/Black_lines.gif)
Please check the following points:
- Clean the primary corona wire of the drum unit. To see how to clean the corona wire, click here.
- Make sure the primary corona wire cleaner is at the Home posision(▲).
- 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.
- Make sure that a torn piece of paper is not inside the pinter covering the scanner window.
- The fixing unit may be smudged. Contact to the Customer Support.
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