Kyocera TASKalfa 7002i Service Manual page 998

Step Check description
17 Checking the drive parts
18 Checking the connection
19 Replacing the PF main
PWB
20 Replacing the engine PWB The engine PWB is faulty.
J1305/J1306/1307: Middle sensor non-arrival jam
Object: Side multi feeder + Paper feeder, or Side multi feeder + Large capacity feeder
The middle sensor does not turn on after PF conveying sensor 3 turns on or off during paper feed from cas-
sette 5-7.
Step Check description
1 Checking the paper path
2 (When paper skews)
Checking the feed pulley
Assumed cause
The drive from the PF feed
motor is not properly trans-
mitted.
The connector is not prop-
erly connected or the wire
is faulty.
The PF main PWB is
faulty.
Assumed cause
The paper is caught with a
piece of paper, etc.
Conveying capability of the
feed pulley is not enough.
7-138
Measures
Check if the PF feed motor is
smoothly rotates manually.
Then, clean and reattach the
drive parts if necessary. If not
repaired, replace them.
Clean the terminal of the fol-
lowing wire connectors and
reinsert the connectors.
Replace the wire when it has
no continuity.• Middle sensor
- Feed PWB• Vertical convey-
ing motor - Feed PWB• PF
feed clutch 1, 2 - PF main
PWB• PF feed motor - PF
main PWB• Feed PWB -
Engine PWB• PF main PWB -
Engine PWB
Replace the PF main PWB.
Replace the engine PWB.
Measures
A piece of paper or the for-
eign objects are adhered on
the conveying path, or if the
parts such as the guide or
the actuator has burrs,
remove them.
Clean the feed pulley sur-
face. If it is worn down,
replace it.
2WA/2NJ/2RK
Reference
Wiring dia-
gram
Detaching
and reat-
taching the
PF main
PWB
Detaching
and Reat-
taching the
engine
PWB
Reference
Detaching
and reat-
taching the
pickup pul-
ley, feed
pulley and
retard pul-
ley