Canon imageRUNNER 2270 Service Manual page 447

Chapter 10
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
Image
processing
block
Scanner unit
powered in sleep 3
not powered in sleep 3
F-10-8
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.
10-18
LAN
controller
CPU
block
Printer unit
Control panel
power switch
Fax
reception
detector
Hard disk drive