Energy-Saving Function; Power Supply State - Canon iR3245 Series Service Manual

10.4.5 Energy-Saving Function

10.4.5.1 Overview
iR3225 / iR3225N / iR3235 / iR3235N / iR3245 / iR3245N
1. Standby mode
The mode during operations or when an operation is ready to start. All power supplies are provided.
2. Sleep mode
2-1. Sleep 1
The state that the light of the control panel is turned off and the laser scanner motor (M1) does not rotate by pushing the control panel key. The power supply state
is the same as for standby mode.
2-2. Sleep 3
Only 3 VB for the all-night power supply PCB is being provided.
When either of the following jobs occurs, sleep 3 mode is turned into standby mode.
- Print job
- Holding down the control panel power switch
- Receiving FAX
The diagram below shows the range that current is applied to at sleep 3 mode.
Scanner assembly
3. AC off mode
The state that the main power switch is turned off. All power supplies and heater control are turned off.

10.4.5.2 Power Supply State

iR3225 / iR3225N / iR3235 / iR3235N / iR3245 / iR3245N
Reader part
DC controller PCB
Main controller PCB
Main controller PCB
SDRAM CPU
Image processing
assembly
Printer assembly
Non-all night
Non-all night
Non-all night
Non-all night
Non-all night
Non-all night
Non-all night
All night
Non-all night
Fax Non-all night
Control panel
LAN
power switch
controller
assembly
Detection of FAX
received
Hard disk drive
Current being applied at sleep 3 mode
Current not being applied at sleep 3 mode
F-10-9
T-10-14
Standby mode
12VA2 ON
24VU2 ON
5V ON
12V ON
24VU1 ON
24VU2 ON
3VA ON
3VB ON
12V ON
12V ON
Sleep mode
AC off mode
1 3
ON OFF OFF
ON OFF OFF
ON OFF OFF
ON OFF OFF
ON OFF OFF
ON OFF OFF
ON OFF OFF
ON ON OFF
ON OFF OFF
ON OFF OFF
Chapter 10
0019-0039
0019-0040
10-11