Lexmark MX721 User Manual page 196

Maintaining the printer
7
Insert the ADF pick roller cover until it clicks into place.
8
Close the door.
9
Turn on the printer.
Replacing the ADF feed roller
1
Turn off the printer.
2
Open door D.
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.
196