COPYRIGHT
©
2002 CANON INC. 2000 CANON iR1600/iR2000 REV.1 JAN. 2002
6-7
CHAPTER 6 PICKUP/FEDING SYSTEM
2.1.4 Detecting the Size of Paper in the Cassette
The size of paper inside the cassette is detected by the DC controller PCB in relation to
the position of the paper size lever of the cassette set by the user.
When the cassette is fitted to the machine, the paper size lever pushes the paper size
switch (SW105) found inside the machine, enabling the machine to detect the presence/ab-
sence of a cassette and the size of paper inside it.
The paper size switches are arranged as follows, and the combination of push switches
pressed by the paper size lever is used to detect the size of paper.
F06-201-06
T06-201-01
PSSN 1
PSSN 2
PSSN 3
PSSN 4
A3 A4 A4R A5 B4 B5 B5R LGL 11x17 LTRR U1*STMT U2* U3*
LTR
*
: push switch is pressed.
: push switch is not pressed.
: not used.
(SW105)
PSSN1
PSSN2PSSN3
PSSN4
A4 A5 B5 LGL LTR STMT U2
A4R B4 B5R 11x17 LTRR U1 U3A3
Paper size switch
Paper size lever