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

No Waste Toner

Short Paper

No Belt Unit

Cover is Open

Calibrate or Calibration Failed or Calibration.

Print Unable XX

Replace Fuser

Registration or Registration failed.

Cartridge Error

Replace PF Kit xx

Toner Error

Fuser Error or Self-Diagnostic

Jam Manual Feed

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

Size Mismatch

No Toner

Log Access Error

Drums End Soon/ Drum End Soon(X)

Drum Error (Drum!)

Replace Belt unit

Replace WT (waste toner) Box

Jam Rear

Jam Inside

Jam Tray 1

Replace Drum

Replace Toner

Out of Memory

Small Paper

No Paper

Belt End Soon

WT Box End Soon

Drum Stop