Kyocera FS-C8520MFP Service Manual page 236

Problem
(22)
The message
requesting paper to
be loaded is shown
when paper is
present on the cas-
sette.
(23)
The message
requesting paper to
be loaded is shown
when paper is
present on the MP
tray.
(24)
The size of paper
on the cassette is
not displayed cor-
rectly.
(25)
A paper jam in the
paper feed, paper
conveying or eject
section is indi-
cated when the
main power switch
is turned on.
(26)
A message indicat-
ing cover open is
displayed when the
front cover or right
cover is closed.
Causes
1. Defective connector
cable or poor con-
tact in the connector.
2. Deformed actuator of
the paper sensor.
3. Defective paper sen-
sor.
4. Defective PWB.
1. Defective connector
cable or poor con-
tact in the connector.
2. Deformed actuator of
the MP paper sensor.
3. Defective MP paper
sensor.
4. Defective PWB.
1. Defective connector
cable or poor con-
tact in the connector.
2. Defective cassette
size switch.
3. Defective PWB.
1. A piece of paper torn
from paper is caught
around registration
sensor, duplex sen-
sor , feed sensor or
eject sensor.
2. Defective sensor.
1. Deformed actuator of
the interlock switch.
2. Defective interlock
switch.
Check procedures/corrective measures
Reinsert the connector. Also check for continuity within the
connector cable. If none, replace the cable.
Paper sensor and engine connect PWB (YC15)
Engine connect PWB to engine PWB (YC9)
Check visually and replace if necessary.
Replace the cassette PWB.
Replace the engine PWB or engine connect PWB and
check for correct operation (see page 1-5-32).
Reinsert the connector. Also check for continuity within the
connector cable. If none, replace the cable.
MP paper sensor and engine PWB (YC28)
Check visually and replace if necessary.
Replace the MP paper sensor.
Replace the engine PWB and check for correct operation
(see page 1-5-32).
Reinsert the connector. Also check for continuity within the
connector cable. If none, replace the cable.
Paper size width switch and engine PWB (YC14)
Paper size length switch and engine PWB (YC14)
Replace the paper size width switch or paper size length
switch.
Replace the engine PWB and check for correct operation
(see page 1-5-32).
Check visually and remove it, if any.
Replace the registration sensor, duplex sensor, feed sensor
or eject sensor.
Check visually and replace if necessary.
Replace the interlock switch.
1-4-48
2MY/2MZ