Canon ImageRunner iR8500 Series Service Manual page 826

Chapter 16
Code
E740
E744
E745
E746
E748
E800
E804
E805
E820
16-30
Cause
0001 There is a DDI-P communication error.
There is an error on the Ethernet board.
0002 The MAC address is illegal.
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.
There is a fault on the TokenRing board.
0001 An attempt at PCI initialization has failed.
0002 The MAC address is faulty.
0003 There is an error in the acquisition/setting of
board information.
0004 There is a connection error.
0005 Other Errors
The accessories board is of the wrong type.
0003 At startup, a board for a different model has
been detected.
Mismatch in controller board and SDRAM size
1001 There is a mismatch between the control board
and the SDRAM.
There is an error in the auto power-off circuit.
0000 An open circuit is detected in the auto power-
off circuit for 3 sec or more.
There is an error in the system fan/the power supply cooling fan (1 and 2).
0000 The lock signal is detected for 5 sec or more
although the power supply cooling fan (1 and
2) is being driven.
0004 The reading of the ambient temperature of the
main controller is 80 degrees or higher.
The rotation of the fixing assembly heat discharging fan and separation heat discharging fan is faulty.
0001 The lock signal is detected for 5 sec or more
although the fixing assembly heat discharging
fan is being driven.
0002 The lock signal is detected for 5 sec or more
although the separation heat discharging fan is
being driven.
The rotation of the drum fan is faulty.
Remedy
- Check the connection with the printer.
- Check the power supply of the printer (to see if
initialization takes place at startup).
- Replace the DC controller or the main controller PCB.
- Replace the 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.
- Disconnect and then connect the TokenRing board.
- Replace the TokenRing board.
- Replace the TokenRing board.
- Replace the TokenRing board.
- Check the connection the cable.
- Replace the cable.
- Check the power source of the MAU.
- Replace the MAU.
- Replace the TokenRing board.
- Replace the UFR board of the correct type (model).
- Check the correct combination between main
controller PCB and SDRAM.
- Turn on the power once again.
- Check if the connector (J505) of theDC controller PCB
is mounted properly.
- Check if the connector (J1719) of the relay PCB is
mounted properly.
- Replace the relay PCB.
- Replace the DC controller PCB.
- Check if there is no foreign material in the rotation
assembly of the power supply cooling fan (1 and 2) fan.
- Check if the connector (J505) of the DC controller
PCB is mounted properly.
- Replace the power supply cooling fan (1/2).
- Replace the DC controller PCB.
- Check if there is no foreign material in the rotation
assembly of the system fan.
- Check if the connector (J1028) of the main controller
PCB is mounted properly.
- Replace the sysytem fan.
- Replace the main controller PCB.
Caution
In the case of a fault in the system fan, the data will be
indicated in the form of an alarm (0008040004;
ALARM-2).
- Check if there is no foreign material in the rotation
assembly of the fixing assembly heat discharging fan.
- Check if the connector (J503) of the DC controller
PCB is mounted properly.
- Replace the fixing assembly heat discharging fan.
- Replace the DC controller PCB.
- Check if there is no foreign material in the rotation
assembly of the separation heat discharging fan.
- Replace the separation heat discharging fan.