Canon ImageRunner iR8500 Series Service Manual page 543

- Fans Operating in Keeping with the State of the Scanning Lamp
Stcanning lamp
Optical cooling fan
(FM3)
Stream reading fan
(FM4)
Inverter cooling fan
(FM9)
Power supply cooling fan
1/2 (FM11, FM12)
11.3.7 Sequence of Fan Operation
/ iR8070
The machine's fans may be either ones operating in conjunction with the state of the printer unit or ones operating in conjunction with the state of the
scanning lamp, as shown in figure.
The scanner cooling fan and the power supply fan operate in relation to the states of both printer unit and the scanning lamp; they are, however, controlled
to the higher speed.
When a fan error occurs or the door is opened, the state which the fan was in prior to the error will be used.
- Fans Opening in Keeping with the State of the Printer Unit
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)
- Fans Operating in Keeping with the State of the Scanning Lamp
Stcanning lamp
Optical cooling fan
(FM3)
Stream reading fan
(FM4)
Inverter cooling fan
(FM9)
Power supply cooling fan
1/2 (FM11, FM12)
Main power switch ON
Lamp ON Lamp OFF Standby
F-11-8
Main power switch ON
Initial
Warm-
multiple
Standby Copying
up
rotation
F-11-9
Main power switch ON
Lamp ON Lamp OFF Standby
F-11-10
Jam Pre-heat Scanner ONScanner OFF
: Full speed
After C,
After C,
After
standby
standby
Printing
(H/Hor29; copying
(others)
upper)
May be switched to full speed
15 min.
: full speed
Jam Pre-heat Scanner ONScanner OFF
: Full speed
Chapter 11
: Half speed
Pre-
Jam
heating
: half speed
: Half speed
0008-8983
11-13