HL-5040
 |
FAQs & Troubleshooting |
Vertical black lines appear on the printout.
Please check the following points:
-
Clean the primary corona wire of the drum unit. 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.
- The toner cartridge may be damaged. Put in a new toner cartridge. To see how to replace the toner cartridge, click here.
- The drum unit may be damaged. Put in a new drum unit. To see how to replace the drum unit, click here.
- If you still cannot resolve the issue after taking countermeasures listed above, please call Brother Customer Service. Click here to go to "Contact us" page.
Content Feedback
To help us improve our support, please provide your feedback below.
