CHAPTER 3 MAIN CONTROLLER
3-5
COPYRIGHT
©
2001 CANON INC. 2000 2000 2000 2000 CANON iR8500/7200 REV.1 AUG. 2001
1.3.2 Start-Up Sequence
When the main power switch is turned on, the CPU on the main controller PCB executes
the self-diagnosis program stored in the boot ROM.
The program is used to check the condition of the SDARM and the hard disk; if an error
is found, the fact will be indicated on the control panel in the form of an error code.
F03-103-02
E601-0000, 0001
Indicates an error in the image transfer data.
E602-0001, 0002
Indicates a write/read error.
Self-
diagnosis
program
Boot
program
Boot ROM
CPU
SD RAM
System
area
Image data
area
Main controller PCB
HDD
Access to the program during executing
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