Issue
The following are probable causes when the message <1G CHECK TONER> appears in the display on the control panel. Follow the described instructions.
Cause and Solution
Cause:
The toner cartridge has reached the end of its life, or there is a possibility that a toner cartridge whose life has once reached the end is installed.
Remedy 1:
Check if there is any problem with the toner cartridge.
Remedy 2:
If <9F CHECK TONER> appears and there is a problem with the print quality even after applying the Remedy 1, remove the toner cartridge and replace it with a new one.
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