Dell 3100cn Color Laser Printer - Manual (Page 145)

· Magenta Toner
· Black Toner
Error NNN-NNN relates to printer problems.
Ready to Print
091-402
Drum Cartridge
Replace Soon Drum life warning.
The drum cartridge needs to be replaced.
Replace the drum cartridge.
See " Replacing the Drum Cartridges "
Ready to Print
193-700
non-DELL Toner
Installed The printer is in the custom toner mode. When some of the toner cartridges reach the end of
their lives, you cannot continue printing.