HL-3070CW

FAQs & Troubleshooting

FAQs & Troubleshooting

Clean the corona wire

If you have print quality problems, clean the corona wire as follows:


  1. Turn off the printer power switch.

    Turn off Printer


  2. Fully open the top cover by lifting up on the handle (1).

    Open Top Cover


  3. Take out the drum unit and toner cartridge assembly.

    Remove Toner 1


    • We recommend that you place the drum unit and toner cartridge assembly on a clean, flat surface with a sheet of disposable paper or cloth underneath it in case you accidentally spill or scatter toner.
    • To prevent damage to the printer from static electricity, DO NOT touch the electrodes shown in the illustration.

      Do Not Touch

  4. Clean the primary corona wire inside the drum unit by gently sliding the green tab from left to right and right to left several times.

    Be sure to return the tab to the home position (Tab) (1). If you do not, printed pages may have a vertical stripe.



    Clean Corona Wire


  5. Slide the drum unit and toner cartridge assembly into the printer. Make sure that you match the toner cartridge color to the same color label on the printer.

    C- Cyan, M- magenta, Y- Yellow, K- Black

    Reset Toner


  6. Repeat steps 3 to 5  to clean each of the remaining corona wires.

  7. Close the top cover of the printer.

    Close Top Cover


  8. Turn the printer power switch back on.

If your question was not answered, have you checked other FAQs?

Have you checked the manuals?

If you need further assistance, please contact Brother customer service:

Related Models

HL-3040CN, HL-3070CW

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