Kyocera TASKalfa 7002i Service Manual page 1343

F041: Communication error between the main PWB and the scanner engine
The communication between the main PWB and the engine PWB (Scanner) is faulty.
Step Check description
1 Resetting the main power
2 Checking the connection
3 Replacing the main PWB
4 Replacing the engine PWB The engine PWB is faulty.
F050: Engine main program error
The engine program cannot start up.
Step Check description
1 Firmware upgrade
2 Resetting the main power
3 Checking the EEPROM
Assumed cause
The communication
between the controller and
the scanner is faulty.
The connector or the FFC
is not properly connected.
The wire or the FFC is
faulty.
The main PWB is faulty.
Assumed cause
The firmware is not the lat-
est version.
The print engine ROM
checksum is faulty.
The EEPROM is not prop-
erly attached.
7-483
Measures
Remove the original and
check the sensor. Next, turn
off the power switch and main
switch. Then, turn on the
main switch and power
switch when passing 5 sec-
onds.
Reconnect the following wire
connectors, and clean and
reconnect the FFC. If there is
no continuity, replace the
wire. If the FFC terminal sec-
tion is deformed or FFC is
broken, replace the FFC. •
Main PWB - Engine PWB
Replace the main PWB.
Replace the engine PWB.
Measures
Upgrade the engine firmware
to the latest version
Remove the original and
check the sensor. Next, turn
off the power switch and main
switch. Then, turn on the
main switch and power
switch when passing 5 sec-
onds.
Reattach the EEPROM.
2WA/2NJ/2RK
Reference
Wiring dia-
gram
Detaching
and Reat-
taching the
main PWB
Detaching
and Reat-
taching the
engine
PWB
Reference
Firmware
Update