Kyocera KM-2560 - Page 159

2H0/2HZ-1
1-4-27
C7400 Developing unit connector insertion
problem
Absence of the developing unit is
detected.
Developing unit
connector inserted
incorrectly.
Reinsert the developing unit connector if
necessary.
Defective develop-
ing unit connector.
Replace the developing unit.
C7410 Drum unit connector insertion prob-
lem
Absence of the drum unit is detected.
Drum unit connec-
tor inserted incor-
rectly.
Reinsert the drum unit connector if neces-
sary.
Defective drum unit
connector.
Replace the drum unit.
C7800 Broken external thermistor wire
The thermistor output value is 4.5 V or
more.
Poor contact in the
connector termi-
nals.
Check the connection of connector YC1 on
the engine PWB and the continuity across
the connector terminals. Repair or replace if
necessary.
Defective humidity
sensor.
Replace the humidity sensor.
C8030 Tray upper limit detection problem
(optional document finisher)
When the tray elevation motor raises a
tray, the ON status of the tray upper limit
sensor is detected.
The tray upper limit
sensor/push paper
sensor/surface
view sensor con-
nector makes poor
contact.
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
remedy or replace the cable.
Defective tray
upper limit sensor/
push paper sensor/
surface view sen-
sor.
Replace the sensor.
Defective finisher
main PWB.
Replace the finisher main PWB and check
for correct operation.
C8140 Tray elevation motor problem
(optional document finisher)
When the tray elevation motor is driving,
the ON status of the tray lower limit sen-
sor or surface view sensor cannot be
detected even if 10 s passed.
The tray elevation
motor connector
makes poor con-
tact.
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
remedy or replace the cable.
The tray elevation
motor malfunc-
tions.
Replace the tray elevation motor.
The tray lower limit
sensor/push paper
sensor/surface
view sensor con-
nector makes poor
contact.
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
remedy or replace the cable.
Defective tray
lower limit sensor/
push paper sensor/
surface view sen-
sor.
Replace the sensor.
Defective finisher
main PWB.
Replace the finisher main PWB and check
for correct operation.
Code Contents
Remarks
Causes Check procedures/corrective measures