2WA/2NJ/2RK
7-483
F041: Communication error between the main PWB and the scanner engine
The communication between the main PWB and the engine PWB (Scanner) is faulty.
F050: Engine main program error
The engine program cannot start up.
Step Check description Assumed cause Measures Reference
1 Resetting the main power The communication
between the controller and
the scanner is faulty.
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.
2 Checking the connection The connector or the FFC
is not properly connected.
The wire or the FFC is
faulty.
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
Wiring dia-
gram
3 Replacing the main PWB The main PWB is faulty. Replace the main PWB. Detaching
and Reat-
taching the
main PWB
4 Replacing the engine PWB The engine PWB is faulty. Replace the engine PWB. Detaching
and Reat-
taching the
engine
PWB
Step Check description Assumed cause Measures Reference
1 Firmware upgrade The firmware is not the lat-
est version.
Upgrade the engine firmware
to the latest version
Firmware
Update
2 Resetting the main power The print engine ROM
checksum is faulty.
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.
3 Checking the EEPROM The EEPROM is not prop-
erly attached.
Reattach the EEPROM.
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