Replacing periodic maintenance parts

The periodic maintenance parts will need to be replaced regularly to maintain the print quality. The parts listed below will have to be replaced after printing approximately 25,000 pages for PF Kit MP and 100,000 pages for PF Kit 1, Fuser and Laser. Please call your Brother Call Center when the following messages appear on the LCD.
LCD message
Description
Replace PF KitMP
Replace paper feeding kit for MP tray.
Replace PF Kit1
Replace paper feeding kit for Tray 1.
Replace Fuser
Replace fuser unit.
Replace Laser
Replace laser unit.