J7900 Df Paddle Jam - Kyocera TASKalfa 7002i Service Manual

Step Check description
5 Checking the drive parts
6 Checking the MB main
PWB
7 Checking the DF main
PWB
J7900: DF paddle jam
Object: 4000-sheet finisher
The DF paddle sensor does not turn on when passing 1s after the DF paddle motor starts up.
Step Check description
1 Removing the paper
2 Checking the DF paddle
sensor
3 Checking the DF paddle
motor
Assumed cause
The drive from the MB
conveying motor is not
properly transmitted.
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.
Assumed cause
The paper is jammed in
the DF paddle.
The DF paddle sensor
does not properly operate.
The DF paddle motor does
not properly operate.
7-301
Measures
Check if the MB conveying
motor smoothly rotates man-
ually. Then, clean and reat-
tach the drive parts if
necessary. If not repaired,
replace them.
Reconnect all the connector
to the MB 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 DF sta-
ple relay 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.
Measures
Remove the jammed paper
from the DF paddle.
Turn the DF paddle sensor on
and off manually and check
the indication at U241 [Fin-
isher] > [Lead Paddle]. If the
DF paddle sensor does not
properly operate, clean and
reattach it and reinsert the
connector. If not repaired,
replace it.
Execute U240 [Motor] >
[Beat]. If the DF paddle motor
does not properly operate,
reattach it and reinsert the
connector. If not repaired,
replace it.
2WA/2NJ/2RK
Reference
Detaching
and reat-
taching the
DF main
PWB
Reference
Executing
U241
Executing
U240