Kyocera AD-63 Service Manual page 220

Problem
(6) Check if the duplex feed pulley, upper
Paper jams. duplex feed roller or lower duplex feed roller
is deformed.
(7) Check if the developing unit is extremely
Toner drops on the pa- dirty.
per conveying path.
(8) Check if the pulleys, rollers and gears oper-
Abnormal noise is ate smoothly.
heard.
Check if the following electromagnetic
clutches are installed correctly: upper/lower
paper feed clutches, feed clutches 1/2/3,
bypass paper feed clutch and bypass feed
clutch.
Causes/check procedures Corrective measures
Check visually and replace the pulley or
roller if deformed.
Clean the developing unit.
Grease the bearings and gears.
Correct.
2FD/2FF/2FG
1-5-55