Canon iR4570 Series Service Manual page 697

Code Cause
0000 At startup, communication with
the printer fails.
0001 There is a DDI-P communication
error.
E740 There is an error on the Ether board.
0002 The MAC address is illegal.
E743 There is an error in the DDI communication.
0000 An SCI error has occurred. The
received data is faulty. A
reception timeout condition has
occurred. An SEQ timeout error
has occurred.
E744 There is an error in the language file/boot ROM.
0001 The version of the language file
on the HDD and that of the
bootable do not match.
0002 The size of the language file on
the HDD is too large.
0003 There is no language file on the
HDD indicated by config.txt for
a switchover.
0004 An attempt to switchover to a
language on the HDD fails.
1000 The boot ROM that is mounted is
of the wrong type.
Remedy
1. Check the connector used to
connect to the printer.
2. Check the power supply of the
printer (to see if initialization takes
place at startup).
3. Replace the DC controller or the
main board.
1. Check the connection with the
printer.
2. Check the power supply of the
printer (to see if initialization takes
place at startup).
3. Replace the DC controller or the
main board.
Replace the LAN card.
Disconnect and then connect the
flexible cable used to connect the
reader unit and the printer unit.
Replace the following as
necessary: flexible cable, reader
controller PCB, main controller
PCB.
Download a language file of the
correct version.
Download a language file of the
correct version.
Download a language file of the
correct version.
Download a language file of the
correct version.
Replace the boot ROM with one of
the model in question.