In handle C
Turn off the printer.
Pull out tray 4, and then pull out tray 3.
Pull out handle C, and then open the inner cover.
Open the roller kit cover.
Remove the tray roller kit.
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.
Apply water to a soft, lint-free cloth, and then wipe the pick rollers.
Insert the roller kit until it clicks into place.
Close the roller kit cover.
Close the inner cover, and then insert handle C.
Insert trays 3 and 4.
Turn on the printer.