Kyocera TASKalfa 7002i Service Manual page 1236

Step Check description
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
C1900: Paper Feeder EEPROM error
Condition: When outputting Event Log after turning the main power off and on while
disconnecting the connector of the cable from the side multi feeder, this service call
error is not recorded. (It is caused by the paper feeder.)
(For the internal count)
The writing data and the reading data mismatch 3 times continuously when writing.
Step Check description
1 Firmware upgrade
2 Checking the connection
3 Replacing the PF main
PWB
Assumed cause
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.
7-376
Measures
Replace the engine PWB.
If this service call error is
recorded on Event Log after
finishing the previous steps,
perform the field measures
for [C1900: Paper feeder
EEPROM error] or [C1800:
Large capacity feeder
EEPROM 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
engine
PWB
Reference
Firmware
Update
Wiring dia-
gram
Detaching
and reat-
taching the
PF main
PWB
(Paper
feeder)