Power Supply - Canon imageRUNNER 1750 Series Service Manual

2
Technical Explanation > External Auxiliary System > Controls > Power supply
WUP STBY
Delivery Cooling
Fan (Rear) (FM1)
Delivery Cooling
Fan (Center) (FM2)
Delivery Cooling
Fan (Front) (FM3)
Power Supply Cooling
Fan (FM4)
Heat Exhaust
Fan (Front) (FM5)
Heat Exhaust
Fan (Rear) (FM6)
Delivery Cooling
Fan (Front) (FM7)
Developing Cooling
Fan (Rear) (FM8)
: Full-speed
*1: Fan speed is switched between half speed and full speed depending on the fixing
temperature.
Fan is driven at 1/2-speed only at 1-sided print with imageRUNNER 1730.
In other cases than the above, it is driven at Full-speed.
*2: At the time of jam/error, the driving state right before jam/error is continued.
*3: Upper (gray) band: sequence at 1-sided, lower (black) band: sequence at 2-sided print
*4: Fan is not driven at 1-sided print.
It is driven at full speed from the 2nd side at 2-sided print.
2 Technical Explanation > External Auxiliary System > Controls > Power supply
JAM
INI PTINT LSTR STBY
/ERROR
: 1/2-speed

■ Power supply

● Internal power supply
*1
+5VC
USB HUB Kit
+24VU
Interlock
+24VR
*2
Switch (PS1)
*3
Environment
SW
*4
F-2-105
Drum Heater
Option
+24VR
ADF/Reader
+3.3V
Controller PCB
Control Panel
+24VR
+24VR
Power Supply PCB
+5VR
Main SW
+5VC
+3.3V
Main Controller PCB
+3.3V
+5VC
+24VR
Low-Voltage
Power Supply
Circuit
DC Controller PCB
+5VR
+5VR
+5VCircuit
+3.3VCircuit
+24VU
+24VCircuit
+24VR
+24VR
Fixing Heater
Staple Finisher
+3.3V
HVT PCB
+24VU
2-73
CIS
FAX Unit
+3.3V
Regulator
Laser Scanner
Unit
+3.3V
Regulator
Cassette 1
Cassette
Cassette
Cassette
F-2-106
2-73