Canon NP6330 Service Manual page 258

I. FANS
As many as five fans are used in the copier. See Table 7-101 for the orientation and
the function of each fan and the filters used, and see Figure 7-101 for when each of the
fans turn on.
No.
Scanner cooling fan
FM1
Exhaust fan 1/
FM2/
FM3 Exhaust fan 2
Feeding fan
FM4
Power supply PCB
FM5
cooling fan
COPYRIGHT © 1997 CANON INC.
FM1
FM2
FM4
FM5
Figure 7-101
Name
Orientation
Blowing
Blowing
Drawing
Blowing
Table 7-101
CANON NP6330 REV.0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 7 CONTROLS AND EXTERNALS
FM3
Filter Function
Air • Cools the scanner.
• Exhausts ozone generated
by charging assemblies
Ozone
through a filter.
• Exhausts air drawn by the
feeding fan.
• Keeps copy paper against
the feeding belt.
• Exhausts ozone generated
by charging assemblies to
the outside of the copier.
• Cools the DC power supply
PCB
7-1