Power Supply; Power Supply Block Diagram - Canon iPF6100 Service Manual

Chapter 2

2.4.6 Power Supply

2.4.6.1 Power supply block diagram

Operation panel Main controller PCB
POWER ON
The power supply converts AC voltages ranging from 100 V to 240 V from the AC inlet to DC voltages for
driving the ICs, motor, and others.
The voltage generator circuits include the +26 V generation circuit for driving motors, fans, and sensors and a
+21.5 V generator circuit for driving sensors, heads, logic circuits, and others.
When the power is turned off, +26 V and +21.5 V are reduced to about 12 V and 9 V respectively (power save
mode).
Power ON/OFF operation is controlled by the main controller PCB.
2-60
DC power supply
control circuit
+5V/+3.3V
generation circuit

Power supply

+26V
generation circuit
Transformer
+21.5V
generation circuit
F-2-43
0013-4333
AC inlet
100V to 240V
Noize filter circuit
Rectifying circuit