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2DA/2DB
1-5-24
C7810
Short-circuited external temperature
thermistor
The input voltage is 4.5 V or more.
Poor contact in the
humidity sensor
connector termi-
nals.
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
remedy or replace the cable.
Defective humidity
sensor.
Replace the drawer PCB and check for cor-
rect operation.
C8170
Finisher*
1
front side registration
motor problem
If the front side registration home posi-
tion sensor is on in initialization, the sen-
sor does not turn off within 570 ms of
starting initialization.
If the front side registration home posi-
tion sensor is off in initialization, the sen-
sor does not turn on within 3180 ms of
starting initialization.
The front side reg-
istration motor con-
nector makes poor
contact.
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
remedy or replace the cable.
The front side reg-
istration motor mal-
functions.
Replace the front side registration motor and
check for correct operation.
The front side reg-
istration home
position sensor
connector makes
poor contact.
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
remedy or replace the cable.
The front side reg-
istration home
position sensor
malfunctions.
Replace the front side registration home
position sensor and check for correct opera-
tion.
Defective finisher
main PCB.
Replace the finisher main PCB and check
for correct operation.
C8180
Finisher*
1
rear side registration motor
problem
If the rear side registration home position
sensor is on in initialization, the sensor
does not turn off within 570 ms of starting
initialization.
If the rear side registration home position
sensor is off in initialization, the sensor
does not turn on within 2880 ms of start-
ing initialization.
The rear side reg-
istration motor con-
nector makes poor
contact.
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
remedy or replace the cable.
The rear side reg-
istration motor mal-
functions.
Replace the rear side registration motor and
check for correct operation.
The rear side reg-
istration home
position sensor
connector makes
poor contact.
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
remedy or replace the cable.
The rear side reg-
istration home
position sensor
malfunctions.
Replace the rear side registration home
position sensor and check for correct opera-
tion.
Defective finisher
main PCB.
Replace the finisher main PCB and check
for correct operation.
*1: Optional. *2: Optional for 16 ppm model. Standard for 20 ppm model.
Code
Contents
Remarks
Causes
Check procedures/corrective measures
Содержание KM-1650
Страница 1: ...SERVICE MANUAL Published in June 05 2DA70763 Revision 3 KM 1650 2050 ...
Страница 4: ...This page is intentionally left blank ...
Страница 10: ...This page is intentionally left blank ...
Страница 248: ...2DA 2DB 1 2 3 2 Figure 2 3 2 Power source PCB silk screen diagram 220 240 V AC 120 V AC ...
Страница 265: ...2DA 2DB 1 2 3 19 Figure 2 3 10 Operation unit PCB silk screen diagram ...
Страница 280: ......