Canon iR8500 Servise Manual page 89

2.7.3 Sequence of Operations (fans)
Some fans of the machine operate in relation to the state of the printer unit, while some
operate in relation to the state of the scanning lamp; the sequence of each is shown in F02-
207-02 and F02-207-03.
The scanner cooling fan and the power supply cooling fan operate in relation to the states
of both the printer unit and the scanning lamp; however, the priority will be on the control
mechanism which has the higher speed.
When error occure or open the door, any fan keep going.
• Fans Operating in Relation to the State of the Printer Unit
Warm-
State of printer unit
Primary charging
assembly fan (FM1)
Fixing heat discharge
fan (FM2)
Scanner cooling fan
(FM3)
Laser driver cooling fan
(FM5)
De-curling fan
(FM6)
Feeding fan
(FM7)
Drum fan
(FM8)
Pre-transfer charging
fan (FM10)
Power supply cooling
fan 1/2 (FM11,FM12)
Separation fan (FM13)
Laser scanner
cooling fan (FM14)
Developing fan
(FM15)
System fan (FM16)
Delivery adhesion-
proofing fan (FM17)
COPYRIGHT© 2001 CANON INC.
Main power switch ON
Initial
multiple
Standby
up
rotation
2000 2000 2000 2000
CHAPTER 2 NEW FUNCTIONS
After C,
standby
Copying Printing
(others)
F02-207-02
CANON iR8500 REV.0 MAR. 2001
After C,
After
standby Pre-
(H/Hor29; copying
heating
upper)
May be switched to full speed
15 min.
: full speed
Jam
: half speed
2-55