Shut-Down Sequence; Overview; Overview (W/ Hdd); Flow Of Operation - Canon iR3570 Service Manual

Chapter 4
- While the Boot Program Is Being Run
Image memory (SDRAM)
System area Image data
CPU
Boot
Self-diagnosis
program program
BootROM
Main controller PCB
: access to the program during execution.
: flow of the system program.
F-4-14

4.4 Shut-Down Sequence

4.4.1 Overview

iR2270 / iR2870 / iR3570 / iR4570 / / iR2270N / / iR2870N / / iR3570N / / iR4570N /
If the main power switch is turned off while the machine is accessing its HDD, damage can well occur on the HDD. To avoid such damage, the machine is provided
with a shut-down sequence.

4.4.2 Overview (w/ HDD)

iR2230 / / iR3530 /
If the main power switch is turned off while the machine is accessing its HDD, damage can well occur on the HDD. To avoid such damage, the machine is provided
with a shut-down sequence.

4.4.3 Flow of Operation

iR2270 / iR2870 / iR3570 / iR4570 / / iR2270N / / iR2870N / / iR3570N / / iR4570N /
The following diagram shows the flow of shut-down operation:
Moves to the shut-down sequence.
Press on the control panel
power switch (3 sec or more)
Indicates the job being executed, and informs the
HDD
user that it will start the shut-down sequence.
protection check mode
Cancels any job on wait in print mode.
HDD
Cancels any job on wait in print mode.
protection execution mode
Cancels any job being executed in fax mode.
Main power switch off
F-4-15

4.4.4 Flow of Operation (w/ HDD)

iR2230 / / iR3530 /
The following diagram shows the flow of shut-down operation:
4-12
area
System
software
HDD
0006-8356
0008-8064
0006-8379
0008-8065