The fusing unit becomes very hot. When installing a new fusing unit, turn off the printer and wait at least an hour. before replacing the old fusing unit. Not allowing the unit to cool may result in burns.
Slowly open the printer's front cover (A) by pulling the left and right side levers.
Unlock the fusing unit by lowering the fixing levers on both sides.
Pull out the fusing unit.
Prepare a new fusing unit.
Align the new fusing unit with the left and right rails.
Push the fusing unit carefully in, until it stops. Then, pull up the fixing lever.
Close the front cover (A).