Kyocera TASKalfa 7002i Service Manual page 1232

Step Check description
3 Replacing the PF main
PWB
4 Replacing the engine PWB The engine PWB is faulty.
5 (When the paper feeder or
the large capacity feeder is
installed) Field measures
for the service call error
caused by the enhance-
ment unit
C1800: Paper Feeder communication error
Condition: When turning the main power off and on while disconnecting the
connector of the cable from the side multi feeder, this service call error does not
reappear. (It is caused by the paper feeder.)
The communication error was detected 10 times continuously.
Step Check description
1 Firmware upgrade
2 Checking the connection
3 Replacing the PF main
PWB
Assumed cause
The PF main PWB is
faulty.
It is caused by the
enhancement unit.
Assumed cause
The firmware is not the lat-
est version.
The connector is not prop-
erly connected. Or, the
wire is faulty.
The PF main PWB is
faulty.
7-372
Measures
Replace the PF main PWB.
Replace the engine PWB.
If this service call error reap-
pears after finishing the previ-
ous steps, perform the field
measures for [C1800: Paper
feeder communication error]
or [C1800: Large capacity
feeder communication error].
Measures
Upgrade the engine firmware
and the paper feeder firm-
ware to the latest version.
Clean the terminal of the fol-
lowing wire connectors and
reconnect the connectors. If
there is no continuity, replace
the wire. • PF main PWB
(Paper feeder) - PF main
PWB (Side multi feeder) • PF
main PWB (Side multi feeder)
- Engine PWB
Replace the PF main PWB.
(Paper feeder)
2WA/2NJ/2RK
Reference
Detaching
and reat-
taching the
PF main
PWB
Detaching
and reat-
taching the
engine
PWB
Reference
Firmware
Update
Wiring dia-
gram
Detaching
and reat-
taching the
PF main
PWB
(Paper
feeder)