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

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

Replace Supplies

Check the Remaining Part Life

Replace the Belt Unit

Replace the Waste Toner Box

Replace the Toner Cartridge

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

Check the remaining ink or toner level (Linux)

Replace Drum

Reset the Drum Counter

Replace PF Kit xx

Replace Laser

Replace Fuser

Reset the Belt Unit Counter

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