3H3
1-4-7
(2) Self diagnostic codes
*The option equipment.
Code
Contents
Remarks
Causes
Check procedures/corrective measures
C8010
Paper conveying motor problem
• The LOCK signal of the paper convey-
ing motor is detected for more than
500 ms while the paper conveying
motor is operating.
However, the first 1 s after the paper
conveying motor is turned on is
excluded from detection.
Loose connection
of the paper con-
veying motor con-
nector.
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
remedy or replace the cable.
Defective paper
conveying motor.
Replace the paper conveying motor and
check for correct operation.
Defective finisher
main PWB.
Replace the finisher main PWB and check
for correct operation.
C8020
Punch motor* problem
• The LOCK signal of the punch motor is
detected for more than 500 ms while
the punch motor is operating.
However, the first 1 s after the punch
motor is turned on is excluded from
detection.
Loose connection
of the punch motor
connector.
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
remedy or replace the cable.
Defective punch
motor.
Replace the punch motor and check for cor-
rect operation.
Defective finisher
main PWB.
Replace the finisher main PWB and check
for correct operation.
C8030
Upper paper conveying belt problem
• During initialization, the intermediate
tray upper sliding plate is not detected
in the home position within 3 s after
the belt returns to the home position.
JAM87 is indicated the first time this
problem occurs. If the problem reoc-
curs after initialization when the front
cover is opened and closed, the prob-
lem is in the upper paper conveying
belt.
• When the intermediate tray upper slid-
ing plate is operated from the home
position, the upper paper conveying
belt home position sensor does not
turn off within 1 s.
Phase shift of the
upper paper con-
veying belt.
Correct the phase of the upper paper con-
veying belt and check for correct operation.
Malfunction of the
upper paper con-
veying belt motor.
Replace the upper paper conveying belt
motor and check for correct operation.
Malfunction of the
upper paper con-
veying belt home
position sensor.
Replace the upper paper conveying belt
home position sensor and check for correct
operation.
Loose connection
of the upper paper
conveying belt
home position sen-
sor connector.
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
remedy or replace the cable.
Incorrect insertion
of the intermediate
tray.
Check whether the intermediate tray
catches are damaged.
Defective finisher
main PWB.
Replace the finisher main PWB and check
for correct operation.
Y1043
71-8
Service Manual
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