Kyocera TASKalfa 7002i Service Manual page 1156

J7600: BF staple jam
Object: 4000-sheet finisher with the folding unit
The BF staple home position cannot be detected after activating the BF staple motor. Or the motor lock-up
was detected during the BF staple motor operation.
Step Check description
1 Checking the staple
2 Checking the BF staple
motor
3 Checking the BF main
PWB
4 Checking the DF main
PWB
Assumed cause
Check if the upper BF reg-
istration guide shifts manu-
ally, and reattach it if it
does not smoothly shift.
The BF staple motor does
not properly operate.
The connector is not prop-
erly connected or the wire
or PBW is faulty.
The connector is not prop-
erly connected or the wire
or PBW is faulty.
7-296
Measures
Check if the lower BF regis-
tration guide shifts manually,
and reattach it if it does not
smoothly shift.
Execute U240 [Booklet] >
[Staple]. If the BF staple
motor does not properly oper-
ate, reattach the BF staple
unit and reinsert the connec-
tor. If not repaired, replace it.
Reconnect all the connector
to the BF main PWB. Then,
fix or replace the wires if they
are pinched by other part or if
they have any damage.
When the issue is not
resolved, replace the BF
main PWB.
Reconnect all the connector
to the DF main PWB. Then,
fix or replace the wires if they
are pinched by the other part
or if they have any damage.
When the issue is not
resolved, replace the DF
main PWB.
2WA/2NJ/2RK
Reference
Executing
U240
Detaching
and reat-
taching the
DF main
PWB