2KJ/2KH
1-4-23
C7800
Broken external thermistor wire
The thermistor output value is 0.5 V or
less.
Poor contact in the
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 cassette PWB and check for
correct operation.
C7810
Short-circuited external thermistor
wire
The thermistor output value is 4.5 V or
more.
Poor contact in the
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 cassette PWB and check for
correct operation.
C8170
Built-in finisher front side registration
motor problem
When the front-side registration home-
position sensor is turned on during initial-
ization, the sensor did not turn on while it
has moved by 106 pulses.
When the front-side registration home-
position sensor is turned off during initial-
ization, the sensor did not turn on in 3 s.
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.
Defective front side
registration motor.
Replace front side registration motor.
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.
Defective front side
registration home
position sensor.
Replace the front side registration home
position sensor.
Defective finisher
control PWB.
Replace the finisher control PWB and check
for correct operation.
C8180
Built-in finisher rear side registration
motor problem
When the rear-side registration home-
position sensor is turned on during initial-
ization, the sensor did not turn on while it
has moved by 106 pulses.
When the rear-side registration home-
position sensor is turned off during initial-
ization, the sensor did not turn on in 3 s.
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.
Defective rear side
registration motor.
Replace rear side registration motor.
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.
Defective rear side
registration home
position sensor.
Replace the rear side registration home
position sensor.
Defective finisher
control PWB.
Replace the finisher control PWB and check
for correct operation.
Code
Contents
Remarks
Causes
Check procedures/corrective measures
Summary of Contents for TASKalfa 181
Page 1: ...SERVICE MANUAL Published in October 2009 842KJ112 2KJSM062 Rev 2 TASKalfa 181 TASKalfa 221 ...
Page 4: ...This page is intentionally left blank ...
Page 10: ...This page is intentionally left blank ...
Page 14: ...2KJ 2KH This page is intentionally left blank ...
Page 114: ...2KJ 2KH 1 3 74 This page is intentionally left blank ...
Page 152: ...2KJ 2KH 1 4 38 This page is intentionally left blank ...
Page 292: ...INSTALLATION GUIDE FOR PAPER FEEDER ...
Page 306: ...INSTALLATION GUIDE FOR DUPLEX UNIT ...
Page 315: ...INSTALLATION GUIDE FOR BUILT IN FINISHER ...
Page 327: ...INSTALLATION GUIDE FOR JOB SEPARATOR ...
Page 336: ...INSTALLATION GUIDE FOR FAX System R ...
Page 351: ...INSTALLATION GUIDE FOR Scan System F B ...
Page 354: ......
Page 355: ......