Identifying The Paper Size - Canon NP6317 Service Manual

CHAPTER 5 PICK-UP/FEEDING SYSTEM
C.

Identifying the Paper Size

The presence/absence of a cassette in the cassette holder and the size thereof are identified by
four switches (CST1 through CST4) provided in the cassette holder. Based on the combinations of
the switches which have been actuated, the microprocessor recognizes the presence/absence of a
cassette as shown in Tables 5-101 and 5-102 and, at the same time, determines where to reverse the
scanner and how to control the blank shutter.
0: SW is OFF
1: SW is ON
NO cassette
A4
A3
A4R
A5R
Universal
In case of the universal cassette (U), the cassette size is selected by service mode No. 23 ac-
cording to Table 5-102:
5-4
cst1
0
1
1
1
1
0
Table 5-101
Service 23
0
1
2
3
4
5
6
Table 5-102
COPYRIGHT © 1999 CANON INC.
cst2 cst3
0 0
0 0
1 0
1 1
1 1
1 1
Size
B4
B5
B5R
LETTER
LETTER R
LEGAL
STMT R
CANON NP6317 REV.0 APR. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
cst4
0
0
0
0
1
1