Kyocera FS-6525MFP - Page 178

2MW/2MX
1-4-16
7810 Short-circuited external
thermistor wire
The thermistor output value is
3 V or more.
Defective connec-
tor cable or poor
contact in the con-
nector.
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
Temperature sensor and engine PWB
(YC21)
Defective tempera-
ture sensor.
Replace the temperature sensor.
7900 Drum unit EEPROM error
No response is issued from
the device in reading/writing
for 5 ms or more and this
problem is repeated five times
successively.
Mismatch of reading data from
two locations occurs eight
times successively.
Mismatch between writing
data and reading data occurs
eight times successively.
Defective connec-
tor cable or poor
contact in the con-
nector.
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
Drum unit and engine PWB (YC15)
Defective drum
unit.
Replace the drum unit (see 1-5-19).
7910 Developer unit EEPROM
error
No response is issued from
the device in reading/writing
for 5 ms or more and this
problem is repeated five times
successively.
Mismatch of reading data from
two locations occurs eight
times successively.
Mismatch between writing
data and reading data occurs
eight times successively.
Defective connec-
tor cable or poor
contact in the con-
nector.
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
Developer unit and engine PWB (YC12
Defective devel-
oper unit.
Replace the developer unit (see 1-5-16).
8030 Tray upper limit detection
problem (document fin-
isher)
When the tray elevation motor
raises a tray, the ON status of
the tray upper limit sensor is
detected.
Defective connec-
tor cable or poor
contact in the con-
nector.
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
Tray upper limit sensor and DF main PWB
(CN5)
Paper surface sensor 1/2 and DF main PWB
(CN6)
Defective tray
upper limit sensor,
paper surface sen-
sor 1/2.
Replace the sensor.
Defective DF main
PWB.
Replace the DF main PWB and check for
correct operation.
Code Contents Causes
Check procedures/
corrective measures