2KR/2KS
1-4-39
C8170
Side registration motor 1 problem
(optional 3000-sheet document fin-
isher)
When operation returned to a home
position is performed at the time of initial
operation and a home position is not
detected even if 3 s passed.
Jam 88 is indicated.
Poor contact in the
connector termi-
nals.
Check the connection of connector YC2 on
the inner tray PWB and the connector on
side registration motor 1, and the continuity
across the connector terminals. Repair or
replace if necessary.
Defective side reg-
istration motor 1.
Replace side registration motor 1.
Defective PWB.
Replace the inner tray PWB or finisher main
PWB and check for correct operation.
Finisher front side registration motor
problem (optional built-in finisher)
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
Side registration motor 2 problem
(optional 3000-sheet document fin-
isher)
When operation returned to a home
position is performed at the time of initial
operation and a home position is not
detected even if 3 s passed.
Jam 88 is indicated.
Poor contact in the
connector termi-
nals.
Check the connection of connector YC8 on
the inner tray PWB and the connector of
side registration motor 2, and the continuity
across the connector terminals. Repair or
replace if necessary.
Defective side reg-
istration motor 2.
Replace side registration motor 2.
Defective PWB.
Replace the inner tray PWB or finisher main
PWB and check for correct operation.
Finisher rear side registration motor
problem (optional built-in finisher)
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 420i
Page 1: ...SERVICE MANUAL Published in May 2010 842KS113 2KSSM063 Rev 3 TASKalfa 420i TASKalfa 520i ...
Page 4: ...This page is intentionally left blank ...
Page 10: ...This page is intentionally left blank ...
Page 14: ...2KR 2KS This page is intentionally left blank ...
Page 224: ...2KR 2KS 1 4 66 This page is intentionally left blank ...
Page 328: ...2KR 2KS 2 3 30 This page is intentionally left blank ...
Page 371: ...INSTALLATION GUIDE FOR PAPER FEEDER ...
Page 381: ...INSTALLATION GUIDE FOR 3000 SHEETS PAPER FEEDER ...
Page 436: ...INSTALLATION GUIDE FOR CENTER FOLDING UNIT ...
Page 450: ...INSTALLATION GUIDE FOR MAILBOX ...
Page 458: ...INSTALLATION GUIDE FOR HOLE PUNCH UNIT ...
Page 470: ...INSTALLATION GUIDE FOR BUILT IN FINISHER ...
Page 483: ...INSTALLATION GUIDE FOR JOB SEPARATOR ...
Page 491: ...INSTALLATION GUIDE FOR FAX System ...
Page 507: ......
Page 508: ......