Canon LBP-1210 Service Manual page 100

CHAPTER 2
5. Low-voltage Power Supply Circuit
a. Outline
Inlet
Low-voltage power
Power switch
(SW101)
Fuse
(FU101)
Noise
filter
Fuse
(FU102)
Rectification
circuit
Transformer
Control IC
(IC501)
Overvoltage/
overcurrent
detection circuit
This circuit converts AC power, input from the power inlet, into DC power and supplies it to each
load.
2 - 14
Engine Controller PCB
supply circuit
Noise
filter
(IC201)
(T501)
+24V
power
supply
circuit
+5V
power
supply
circuit
+3.3V
power
supply
circuit
Figure 2-2-5
Relay
Triac
(RL101)
Fixing heater
safety circuit
High-voltage
power supply
circuit
DOSNS
CPU
Door switch
(SW301)
+24U
Fan motor
drive circuit
Main motor
drive IC
(IC401)
+24V
+5V
Sensor
+3.3V
ACN
Fixing heater
ACH
Air intake fan
Main motor
Solenoid
Interface controller
PCB
Intermediate PCB
Laser/scanner
unit
Sensors