Kyocera TASKalfa 7002i Service Manual page 970

Step Check description
3 Checking the paper
4 Checking the registration
sensor
5 Checking duplex motor 2
6 Checking the drive parts
7 Checking the connection
8 Replacing the relay PWB
9 Replacing the feed PWB
10 Replacing the engine PWB The engine PWB is faulty.
Assumed cause
Paper curled or waved by
moisture absorption.
The registration sensor
does not operate properly.
Duplex motor 2 does not
properly operate.
The drive from duplex
motor 2 is not properly
transmitted.
The connector is not prop-
erly connected or the wire
is faulty.
The relay PWB is faulty.
The feed PWB is faulty.
7-110
Measures
Fix or replace paper. If it is
difficult to replace, relocate
the leading edge with the
trailing edge of the paper to
feed or turn over the paper,
and reinstall it.
Turn the registration sensor
on and off manually and
check the indication at U031
[Regist]. If the registration
sensor does not properly
operate, clean and reattach it
and reinsert the connector. If
not repaired, replace it.
Execute U030 [DU2]. If
duplex motor 2 does not
properly operate, reattach it
and reinsert the connector. If
not repaired, replace it.
Reattach the drive parts of
the duplex motor 2. If not
repaired, replace the parts
faulty in operation.
Clean the terminal of the fol-
lowing wire connectors and
reinsert the connectors.
Replace the wire when it has
no continuity.• Registration
sensor - Feed PWB• Duplex
motor 2 - Relay PWB• Relay
PWB - Feed PWB• Feed
PWB - Engine PWB
Replace the relay PWB.
Replace the feed PWB.
Replace the engine PWB.
2WA/2NJ/2RK
Reference
Executing
U031
U030 Exe-
cution
Wiring dia-
gram
Detaching
and Reat-
taching the
engine
PWB