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CHAPTER 2 OPERATIONS
CHAPTER 2 OPERATIONS
When the self-diagnosis program ends normally, the boot program stored in the ROM
When the self-diagnosis program ends normally, the boot program stored in the ROM
starts up, reading the system program from the hard disk to write it in the system area of the
starts up, reading the system program from the hard disk to write it in the system area of the
SRAM.
SRAM.
When writing is done, the system program in the main memory starts up to initialize each
When writing is done, the system program in the main memory starts up to initialize each
part, at the end of which the control panel shows the Control screen and the Start key
part, at the end of which the control panel shows the Control screen and the Start key
changes from red to green, indicating that the host machine is ready to accept a job.
changes from red to green, indicating that the host machine is ready to accept a job.
The system program of the host machine consists of multiple modules, and those needed
The system program of the host machine consists of multiple modules, and those needed
for particular processing are called into the system area of the main memory for use.
for particular processing are called into the system area of the main memory for use.
2-4
2-4
COPYRIGHT © 2000 CANON INC. 2000 2000 2000 2000
COPYRIGHT © 2000 CANON INC.
Main memory (DIMM)
Main memory (DIMM)
System
System
area
area
CPU
CPU
Self-
Self-
diagnostic
diagnostic
program
program
ROM
ROM
Main controller PCB
Main controller PCB
Access to the program at time of execution
Access to the program at time of execution
Flow of the system program
Flow of the system program
F02-201-03
F02-201-03
2000 2000 2000
Image data
Image data
are
are
Boot
Boot
program
program
2000 CANON NW Multi-PDL P. kit-A1 REV.0 SEPT. 2000 PRINTED IN USA
CANON NW Multi-PDL P. kit-A1 REV.0 SEPT. 2000 PRINTED IN USA
Hard disk drive
Hard disk drive
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