I just replaced the toner cartridge and the LCD continues to display the message "Toner Life End" or "Replace Toner".

I still receive the error message "Replace DrumX" or "Drum End SoonX" after I replace the drum unit with a new one.

I print mainly black and white documents. How can I stop the life of my color toner cartridges from decreasing when I print?

Replace Drum

What is the difference between the toner cartridge and the drum unit?

Replace Fuser

Replace PF Kit xx

Replace Belt

Replace WT (waste toner) Box

Replace Toner