COPYRIGHT
©
2000 CANON INC. 2000 2000 2000 2000 CANON iR5000/iR6000 REV.0 JULY 2000
CHAPTER 7 EXTERNALS AND CONTROLS
7-4 P
2.2 Operation
2.2.1 Controlling the Speed
Some of the fans used in the machine are controlled to two different speeds (F07-202-01),
switched over by changing the voltage by the work of the voltage switching circuit of each
fan.
F07-202-01
2.2.2 Sequence of Operations
F07-202-02
Voltage switching
circuit
CPU
DC controller PCB
Fan
24V or 12V
Clock signal
Full speed
signal
24V 12V
Half speed
signal
Control panel switch ON
Main
power switch ON
Control panel
switch OFF
Feed fan
(FM1)
DC power supply
(FM6)
Duplexing feeding fan
(FM8)
Heat discharge fan
(FM3)
Primary charging
cooling fan (FM2)
De-curling fan (FM5)
Controller cooling fan
(FM4)
Hard disk fan (FM7)
Warm-up
Printer unit
Initial
multiple
rotation
Standby Printing
Low
power
mode
Door openJam
After
printing
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15 min
15 min
15 min
15 min
15 min
15 min
: full speed.
:
half speed.
15 min
15 min
15 min
15 min
15 min
15 min
15 min
15 min
15 min
15 min
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