To turn the printer off, press the Power button. Cut the printer's power. Wait till the printer has completely cooled down before replacing the fusing unit to prevent harm.
Step 1: Open the top cover.
Step 2: To replace the fuser unit from the printer, unscrew the two large screws in the manner indicated.
Step 3: Holding these handles on either side, extract the fusing unit from the printer.
Step 4: From the fusing unit, take out the oil bottle and the Fuser Cleaner.
Step 5: Connect the printer's new Fusing Unit. Make sure the Fusing Unit is fully inserted into the printer.
Step 6: With the two long screws, fasten the fusing unit.
Step 7: Set the SET position here on Fusing Unit Pressure Release Levers.
Step 8: Lock the Oil Bottle Lock Levers as well as the Fuser Cleaner Lock Levers after inserting the Fuser Cleaner as well as the Oil Bottle into a newer fusing unit.
Step 9: Plug the printer into the AC outlet after closing the Top Cover.
Step 10: Pressing the Power button will start the printer.
Step 11: To take the printer Off Line, press any of the Menu buttons (+, -, Set, or Back).
Step 12: Until "RESET MENU" displays, press + or -.
Step 13: To advance to the following menu level, press Set. Then, press + or - until "PARTS LIFE" appears.
Step 14: Once "FUSER UNIT" appears, hit Set and + simultaneously.
Step 15: After pressing Set, press Go. The condition of the printer is now READY.
I hope now you've all the necessary information regarding how to replace the fuser unit. You must carefully go through the information mentioned above in order to get a better understanding.