Brother MFC-9970CDW Cleaning the corona wires

l Push the drum unit in until it stops.

m Close the front cover of the machine.

Note

After you replace a toner cartridge, DO NOT turn off the machine's power switch or open the front cover until the LCD clears the Please Wait message and returns to Ready mode.

Cleaning the corona wires

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

a Press the front cover release button and then open the front cover.

74