Solution
Is the toner cartridge out of toner?
Check the toner level.
For details on the procedures for checking the toner level, see the "e-Manual" (HTML manual) in the CD-ROM supplied with the machine.
Is the toner cartridge installed properly?
Make sure that the toner cartridge is properly installed. For instructions on how to install the toner cartridge, see the "e-Manual" (HTML manual) in the CD-ROM supplied with the machine.
Have you removed the plastic seal from the toner cartridge?
Make sure that the plastic seals are removed from the toner cartridge. For instructions on how to install the cartridge, see the "e-Manual" (HTML manual) in the CD-ROM supplied with the machine.