Replace the drum unit.

What is the difference between the toner cartridge and the drum unit?

I just replaced the toner cartridge and the LCD continues to display the message "Toner Low" / "Replace Toner" / "Toner Life End" or the Toner LED is still on or flashing.

I still receive the error message "Change Drum Soon" after I replace the drum unit with a new one.

Replace the toner cartridge

I recently installed the starter or a new toner cartridge and I don't think I got the full yield from the toner.

Can I buy any MICR toner?