COPYRIGHT © 2001 CANON INC.
2000 2000 2000 2000
CANON iR5000i/iR6000i REV.0 JUNE 2001
CHAPTER 2 MAIN CONTROLLER
2-6 S
When the self-diagnosis program ends normally, the boot program also stored in the boot
ROM starts to read the system software from the hard disk to write it to the system area of
the SDRAM.
The machine’s system software consists of multiple modules, and the appropriate modules
needed at a specific time are called into the system area of the SDRAM for execution.
F02-103-03
Self-diagnostic
program
Boot
program
Boot ROM
CPU
SD RAM
System
area
Image
data area
Main controller PCB
Hard disk drive
(HDD)
:
Access to the program at execution.
: Flow of the system program.