Machine As Supplied With Power - Canon iR4570 Series Service Manual

Chapter 10
When the machine is in sleep mode 1, its control panel remains off, and the polygon motor (M1) will not rotate even
when any of the control panel keys is pressed. In this mode, the machine is provided with power as in standby mode.
2-2. Sleep 3
When the machine is in sleep mode 3, only 3 VB is available. The machine will move to standby mode from sleep 3
in response to any of the following:
- print job
- press on the control panel power switch
- incoming fax
The following shows the sections of the machine that are provided with power in sleep 3:
Main controller PCB
SDRAM
CPU
Image
processing
block
Scanner unit
powered in sleep 3
not powered in sleep 3
F-10-11
3. AC Off Mode
When the machine is in AC off mode, its power swish is off. All its power supplies and its heater control mechanism
are off.

10.4.5.2 Machine as Supplied with Power

iR2270 / iR2870 / iR3570 / iR4570 / iR3530
- Standby Mode, Sleep Mode, AC Off Mode
10-18
Control panel
power switch
LAN
controller
block
Fax
reception
detector
Hard disk drive
Printer unit
0006-6167