Lexmark MX721 User Manual page 180

Maintaining the printer
5
Remove the packing material.
6
Insert the new imaging unit.
7
Insert the toner cartridge.
8
Close the door.
Replacing the fuser
Note: For printers with hot roll fuser, see
1
Open door C.
CAUTION—HOT SURFACE: The inside of the printer might be hot. To reduce the risk of injury from a
hot component, allow the surface to cool before touching it.
Warning—Potential Damage: To prevent damage from electrostatic discharge, touch any exposed metal
frame of the printer before accessing or touching interior areas of the printer.
"Replacing the hot roll fuser" on page 183.
180