Overview (Ir2022/Ir2022N/Ir2018/Ir2018N); Overview (Ir2030I/Ir2030/Ir2025I/Ir2025/Ir2022K/Ir2022I/Ir2018I); Fan Control - Canon iR2030 Series Service Manual

Chapter 9
This machine is provided with a fan to cool the fixing unit.

9.2.2 Overview (iR2030i/iR2030/iR2025i/iR2025/iR2022K/iR2022i/iR2018i)

iR2022i / iR2025 / iR2030 / iR2018i
This machine is provided with a fan to cool the fixing unit.

9.2.3 Fan Control

iR2022i / iR2025 / iR2030 / iR2018 / iR2022 / iR2018i
The fan motor control circuit is shown below.
Switching between full-speed rotation and half-speed rotation is controlled as described below.
1) Full-speed control
When the CPU on the DC controller outputs a fan full speed signal (FAN_FULL), the fan drive voltage switching circuit supplies a +24 V fan drive voltage to turn
the heat exhaust fan at the full speed.
2) Half-speed control
9-2
FM1
FM1
DC Controller PCB
CPU
FAN FULL
Fan drive
voltage
FAN HALF
switching circuit
F-9-3
F-9-4
+24V
J219
FANDRV
3
GND
2
FAN_LOCK
1
F-9-5
FM1
0017-5481
0017-5482