Canon iR2270 Series, Service Manual

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Chapter 10
10-10
F-10-5
10.4.1.2 Route of Power Inside the Printer Unit
0008-8136
/ iR3530
The machine's power is supplied by the printer power supply PCB. The DC power to accessories is supplied by the
accessories power supply PCB.
The functions of the individual power supply PCBs are as follows, shown together with the distribution of power:
T-10-7
All-night power
supply PCB Generates and supplies all-night power (3
VB).
Name Description Remarks
Printer power supply
PCB generates DC power (24 V, 13 V). supplies
DC power to controller PCB, cassette
pedestal
Name Description Remarks
Printer power supply block
To Finisher-Q3/Q4
To Finisher-Q3/Q4
(by way of Cassette
Feeding Unit-Y2)
Side Paper Deck-Q1
To Buffer Path-E1
To Buffer Path-E1
To Finisher-S1
To Finisher-S1
Heater switch
SW5
Cassette heater(H4)
Deck heater(H7)
Cassette pedestal(H1C)
Reader heater(H6)
Leakage breaker
ELCB2
Main switch
SW1
Heater
switch PCB
Pickup
heater
mounting
kit
Reader heater(H5)
AC driver PCB
Accessories
power
supply PCB
All-night
power
supply PCB
Printer
power
supply PCB
Fixing main heater(H1)
Fixing sub heater(H2)
Thermal switch(TP1)
Controller power supply PCB
13V
A
2
24VU2
24VU1
24VU2
13VA1
13VA2
13VB
T
o
Cassette F
eeding Unit-Y2
T
o
3-W
a
y
Unit-A1
T
o
3-W
a
y
Unit-A1
3VB
3VB
Controller
PCB
Printer
unit
DADF
-N1
Super G3 Fax
Board-Q1
F
ront co
v
e
r
open/close s
witch
SW2
DC controller PCB
3V
A
5V
A
13V
A
1
2
4VU2
24VU1 24VU1
HVT
High-voltage
power supply PCB
24VA
13VA2 13VA2
24VU1: non-all night 13VA1: non-all night 5VA: non-all night
3VA: non-all night
3VB: all night
13VA2: non-all night
13VB: non-all night 24VU2: non-all night
24VA: non-all night
13V
A
2
24VU2
24VU2
13V
A
24VU2 13V
A
1
3V
A
5V
A
13VB
3VB