Follow the steps below to clear the message:

• The corona wire(s) on the drum unit needs to be cleaned. Clean the corona wire(s) in the drum unit.

  Click here to see how to clean the corona wire(s).

   

• The drum unit or the toner cartridge(s) and the drum unit assembly is not installed correctly. Remove the drum unit, remove the toner cartridge(s) from the drum unit, and put the toner cartridge(s) back into the drum unit. Reinstall the drum unit in the machine.

  • Click here to see how to reinstall the toner cartridge(s).

  • Click here to see how to reinstall the drum unit.

   

• If the issue still continues, the drum unit is at the end of its life. Replace the drum unit with a new one.

  Click here to see how to replace the drum unit.