2RV/2RW/2RX/2RY/3RA-3
7-90
(3) System Error (Fxxxx) Outline
(3-1) System Error code list
(3-2) Content of System Error (Fxxxx) Outline
F000: Communication error between the main unit and CPU
The panel cannot be detected since the CPU communication between the main/engine PWB and the opera-
tion panel PWB is unavailable.
Error code Contents
F000 Communication error between the main unit and CPU
F010 Program read error
F020 RAM read / write error
F040 Communication error between the main unit and CPU (Communication error between
the controller and the print engine)
F050 Engine main program error
Step Check description Assumed cause Measures Reference
1 Resetting the main power The controller does not
activate properly.
Turn off the power switch and
unplug the power cord. After
5s passes, reconnect the
power cord and turn on the
power switch.
2 Checking the connection The connector is not prop-
erly connected or the wire
is faulty.
Clean the terminal of the fol-
lowing wire connectors and
reconnect the connectors. If
there is no continuity, replace
the wire.
• TSI model: Operation panel
PWB (YC6) - Main/engine
PWB (YC507)
• LCD model: Operation
panel PWB (YC2) - Main/
engine PWB (YC507)
3 Checking the expansion
memory
The expansion memory is
not properly connected.
Clean the expansion mem-
ory and reconnect it to the
main/engine PWB
4 Executing U021 The backup RAM data is
faulty.
Execute U021 to initialize the
backup RAM data.
5 Replacing the main/engine
PWB
The main/engine PWB is
faulty.
Replace the main/engine
PWB.
6 Replacing the operation
panel PWB
The operation panel PWB
is faulty.
Replace the operation panel
PWB.