Preventing Overheating Of The Scanner Motor - Canon ImageRunner iR8500 Series Service Manual

Chapter 5
Related Service Mode
COPIER>ADJUST>ADJ-XY>ADJ-S
(scanner home position adjustment)

5.3.1.3 Preventing Overheating of the Scanner Motor

iR105i/iR105+ / iR9070
The machine is provided with a scanner motor cooling fan to prevent overheating of the scanner motor.
[1]
[2]
The scanner motor cooling fan is driven in fixed reading mode under the following conditions to cool the scanner motor:
Operating mode
In stream reading mode and standby
Between 60 % and 68.9 % reduction and fixed reading
Other than above in fixed reading
5-12
[1]
[2]
Scanner motor cooling fan
Scanner motor
Use it to adjust the home position (standard
white plate read position) by entering a setting.
If the standard white plate is soiled, use this
mode to avoid reading the soiled area.
Vertical
HP sensor
size plate
Copyboard glass
Standard white plate
Lower setting Higher setting
Setting range: 0 to 4
F-5-16
T-5-9
T-5-10
Fan rotation control
Stop
Full speed
Half speed
0006-9523