Shut-Down Sequence; Overview; Flow Of Operation; Image Processing - Canon iR5055 Series Service Manual

Chapter 4

4.4 Shut-Down Sequence

4.4.1 Overview

iR5065 / iR 5055 / iR5075 / iR5075N / iR5065N / iR5055N
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 Flow of Operation

iR5065 / iR 5055 / iR5075 / iR5075N / iR5065N / iR5055N
The following diagram shows the flow of shut-down operation:

4.5 Image Processing

4.5.1 Overview of the Image Flow

iR5065 / iR 5055 / iR5075 / iR5075N / iR5065N / iR5055N
The following shows the flow of images in relation to the machine's functions:
4-6
- While the Boot Program Is Being Run
Image memory (SDRAM)
System area
CPU
Self-diagnosis
program
BootROM
Main controller PCB
: access to the program during execution.
: flow of the system program.
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
Image data
area
Boot
program
F-4-8
F-4-9
System
software
HDD
0015-4360
0015-4361
0015-4362