Kyocera FS-C8520MFP Service Manual page 238

Problem
(31)
DP paper feed
clutch does not
operate.
(32)
DP registration
clutch does not
operate.
(33)
An original jams
when the main
power switch is
turned on.
(34)
A message indicat-
ing cover open is
displayed when the
DP top cover is
closed.
Causes
1. Defective connector
cable or poor con-
tact in the connector.
2. Defective clutch.
3. Defective PWB.
1. Defective connector
cable or poor con-
tact in the connector.
2. Defective clutch.
3. Defective PWB.
1. A piece of paper torn
from an original is
caught around the
DP paper feed sen-
sor, DP registration
sensor or DP timing
sensor.
2. Defective sensor.
1. Defective connector
cable or poor con-
tact in the connector.
2. Defective DP open/
close sensor.
Check procedures/corrective measures
Reinsert the connector. Also check for continuity within the
connector cable. If none, replace the cable.
DP paper feed clutch and DP main PWB (YC8)
DP main PWB (YC1) and engine PWB (YC18)
Replace the DP paper feed clutch.
Replace the DP main PWB or engine PWB and check for
correct operation (see page 1-5-29,1-5-32).
Reinsert the connector. Also check for continuity within the
connector cable. If none, replace the cable.
DP registration clutch and DP main PWB (YC8)
DP main PWB (YC1) and engine PWB (YC18)
Replace the DP registration clutch.
Replace the DP main PWB or engine PWB and check for
correct operation (see page 1-5-29,1-5-32).
Check visually and remove it, if any.
Replace the DP paper feed sensor, DP registration sensor
or DP timing sensor.
Reinsert the connector. Also check for continuity within the
connector cable. If none, replace the cable.
DP open/close sensor and DP main PWB (YC5)
DP main PWB (YC1) and engine PWB (YC18)
Replace the DP open/close sensor.
1-4-50
2MY/2MZ