Canon iR C3380 series, Service Manual

Page: 330 / 610

Chapter 10
10-4
10.3.2 2-Speed Control
0013-8660
/ / / / iR C3380i / iR C3380 / iR C2880i / iR C2880
Among the fans mounted to the machine, the delivery adhesive fan and the power supply fan 2 execute 2-speed control. Switching of the rotation speed is executed
by switching the voltage by the voltage switching PCB of the fan.
F-10-4
10.3.3 Sequence of Operations
0013-8661
/ / / / iR C3380i / iR C3380 / iR C2880i / iR C2880
F-10-5
*1: Depending on the environment (paper size and temperature), switch ON/OFF.
*2: Depending on the environment (paper size), switch full speed/half speed.
*3: Depending on the environment (paper size and simplexing or duplexing mode), switch ON/OFF.
10.4 Power Supply
10.4.1 Power Supply
10.4.1.1 Route of Power Supply Inside the Printer
0013-8663
/ / / / iR C3380i / iR C3380 / iR C2880i / iR C2880
The machine's DC power is supplied by the printer power supply PCB.
T-10-4
Name Description Remarks
Printer power supply PCB Generate DC power (24V and 13V systems)
Supply DC power to the controller power supply PCB
Accessories power supply PCB Generate DC power (24V system)
Supply DC power to the buffer path, the finisher, the side finisher, the
cassette pedestal, and the side paper deck
Main switch Switch ON/OFF the AC power to the AC driver PCB
Interlock switch (DC) Switch ON/OFF the 24VUI to the DC driver PCB
Leakage breaker Block the power supply at abnormal state
Heater PCB Switch ON/OF the power supply to the cassette heater, the reader heater,
and the deck heater. Option for 100V/230V
High voltage power supply PCB Generate various high voltages
AC driver PCB Supply AC power to the printer power supply PCB and the accessories
power supply PCB. Fixing drive.
Controller power supply PCB Supply DC power to the reader unit, the accessories power supply PCB, the
No.2/No.3 delivery assembly, the Fax board, the main controller PCB, the
DC driver PCB, the cassette pedestal, and the side paper deck
All-night power supply PCB Generate and supply the all-night power (3VB)
CPU
24V/ 3V/ 0V
24V 13V
Fan
DC controller PCB DC driver PCB
Voltage
switching circuit
Drive signal
Half-speed
signal
Initial multiple
rotation
One-sided Two-sided
Last
rotation
Jam error
Reader
operation
Half speed Switching the normal speed/half speed
Power supply fan 2
Fixing exhaust fan
(front)
Fixing exhaust fan
(rear)
Process cartridge
(front)
Power supply fan
Controller fan
Warm-up
Standby Sleep Low-power
Edge cooling fan
(front) (*1)
Edge cooling fan
(rear) (*1)
Process cartridge
(rear)
Delivery contact fan
Secondary transfer heat
exhaust fan
Print
l speed