COPYRIGHT © 2001 CANON INC.
2000 2000 2000 2000
CANON SUPER G3FAX BOARD-J1 REV.0 JUNE 2001
CHAPTER 3 TROUBLESHOOTING
3-1
REF.
If an error code is indicated in the presence of an error, see the descriptions
on error code in Chapter 6; to find out how to generate a service error code,
see 1.1.1 “Generating Service Error Code” in Chapter 6.
1 Points to Note for Troubleshooting
Take note of the following when troubleshooting the Board:
1.1 When Turning Off the Main Power
The Board stores image control data and image data on the hard disk. If reception is com-
plete, the received images will be retained after the main power is turned off. On the other
hand, transmission images will be lost when the main power is tuned off. (In response, a
memory clear list will be generated.)
1.2 Points to Note When Changing Service Mode Settings
If you ever change service mode settings, be sure to turn off and then on the main power.
The settings made in service mode are stored on the host’s hard disk. The settings related to
the Board are loaded from the hard disk to the G3 fax control PCB, requiring that that main
power be turned off and then on again whenever a change has been made.
1.3 Points to Note When Accessing the DC Controller PCB
If you have to access the DC controller PCB, as for replacing the DIMM, you will have to
remove the G3 FAX Board [1]. To facilitate the work, detach the connector cover [2] shown
in the figure, and disconnect the connector found on the G3 fax control PCB before detach-
ing the G3 FAX Board. (This way, you will have to remove fewer screws as compared with
disconnecting the connector on the controller side.)
F03-103-01
[2]
[1]
