Start-Up Sequence - Canon iR2200 Service Manual

1.3.2 Start-Up Sequence

When the main power switch is tuned on, the CPU on the main controller CPU executes
the self-diagnostic program stored in the boot ROM.
The self-diagnostic program checks the condition of the SDRAM and the HDD; upon de-
tection of a fault, it will indicate the fact in the control panel in the form of an error
code.
E601-0000, 0001
Indicates the presence of an error in image transfer information.
E602-0001, 0002
Indicates the presence of an error in write/read operation.
COPYRIGHT © 2001 CANON INC.
SDRAM
Image data
System
area
CPU
Self-diagnostic
program
Boot ROM
Main controller PCB
access to the program during execution
F02-103-02
2000 2000 2000 2000 CANON iR2200/iR2800/iR3300 REV.0 MAR. 2001
CHAPTER 2 MAIN CONTROLLER
area
Boot
program
HDD
2-5 S