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B. Identifying the Size of Paper on the Multifeeder
The width of copy paper is identified by a variable resistor (VR1) which operates in
response to the location of the slide guide, which is adjusted by the user to suit the size
of paper.
The identified width of copy paper is used for blank exposure control.
The length of paper when the multifeeder is used is identified by the period of time
during which the registration sensor (PS6) remains on.
The data collected in such a way is used to control the length of blank exposure,
activation of the registration roller, and high voltage.
Reference:
The maximum length of paper is 432 mm (LDG size); paper longer than this will
lead to a jam.
Figure 5-402
COPYRIGHT
©
1997 CANON INC. CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 5 PICK-UP/FEEDING SYSTEM
5-8
Slide guide (Front)
Multifeeder tray
Slide guide (rear)
DC controller PCB
Variable resistor (VR1)
Multifeeder paper
width detection
(MFPWD)