FAQs & Troubleshooting
The toner cartridge or the drum unit and toner cartridge assembly is not installed correctly.
Pull out the drum unit. Take out the toner cartridge, and then put it back into the drum unit following the steps below:
To avoid print quality problems, DO NOT touch the shaded parts shown in the illustrations.
Make sure that you put in the toner cartridge properly or it may separate from the drum unit.
Close the front cover of the machine.
After putting back the toner cartridge, DO NOT turn off the machine's power switch or open the front cover until the LCD or LED shows Ready.