Canon imageCLASS LBP6780dn - Fan Control; Low-Voltage Power Supply; Outline

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Technology > Controller System > Low-voltage Power Supply > Outline
Technology > Controller System > Low-voltage Power Supply > Outline
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Fan control
The printer has one fan for preventing a temperature rising inside the printer.
Arrangement of fan motor and the specications are shown below.
Sub fan
Main fan
Description Cooling area Type Speed
Main Fan FM1 inside the printer intake Full
Sub Fan FM2 inside the printer intake Full
F-2-21
T-2-5
Low-voltage Power Supply
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Outline
The low-voltage power supply converts AC power from the power receptacle into DC power
to cover the DC loads.
Block diagram of the Low Voltage Power Supply is shown below.
REM24
+3.3V
+5V
+24V
Fuse(FU1002)
Fuse(FU1001)
+24R
/FDOORSNS
+24U
+3.3V
Protection
circuit
Low-voltage power supply
Fixing control
circuit
+24V generation
circuit
+3.3V generation
circuit
+5V generation
circuit
DC controller
Fixing unit
Noise filter
Door switch
(SW501)
Engine controller
Power switch
(SW240)
Noise filter
Power switch
control circuit
High-voltage
power supply
F-2-22