When it is almost time to replace a Toner Cartridge, an advanced warning message appears. Prepare a Toner Cartridge for replacement based on the maintenance contract.
When it is time to replace a Toner Cartridge, a replacement prompt message appears. Replace it based on the maintenance contract. You can tap [Start Guidance] to display the replacement procedure on the screen and check it.
Do not replace a Toner Cartridge of a color that is not displayed.
When it is time to replace a Toner Cartridge of a color other than black, printing can be forcibly continued using black. Tap [Continue], and then select a desired print job.
Replacing a Toner Cartridge (Here)