There is a common error we see where we get a message that states drum error. Here are the steps to . A new drum can be set or replaced by opening the machine and taking the cartridge center out.
After you take out the cartridge center, you will see the drum and toner cartridge. The toner cartridge is attached to the drum using a blue tab. Simply press the blue tab and lift the cartridge out.
Put the new drum in place, and replace your initial toner cartridge. Could you wait until the toner cartridge clicks, then slide the blue tab over twice to clean the corona wire.
In this multi-functional machine, you will need to click the button titled "Replace Drum" to reset the drum count. Once you do that, you will receive a message saying, "Insert the whole unit back in.