Understanding display messages
Install Toner Cartridge
Prepare new cartridge
A toner cartridge is not installed.
The toner cartridge you have installed is not for your machine.
Small amount of toner is left in the indicated cartridge. The
estimated cartridge life of toner is close.
Install a toner cartridge.
Install a Dell-genuine toner cartridge, designed for your machine.
Prepare a new cartridge for a replacement. You may temporarily
increase the printing quality by redistributing the toner (see
"Redistributing toner" on page 65).