Canon DADF-H1 Service Manual page 42

T02-203-04 summarizes the relationships among each document length sensor signal, the
document width, and the results of initial document size detection.
*1: The ON area of the A4R/LTRR identification sensor is 197 mm or more but less than
214 mm.
Document width
w (mm)
(Document width
detection variable
resistor)
148 w < 171
172 w < 199
200 w < 246
247 w < 268
269 w < 288
289 w < 297
COPYRIGHT © 2001 CANON INC.
A4R/
LTRR*1
identifica-
tion sen-
Tray sen-
sor sor 1
–
OFF
ON
–
– OFF
ON
–
ON
OFF
ON
–
OFF
OFF
ON
–
–
OFF
ON
–
–
OFF
ON
–
–
OFF
ON
–
T02-203-03
2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001
CHAPTER 2 OUTLINE OF OPERATION
Tray sen-
sor 2 Mixed
OFF A5R
OFF
ON
OFF B6
B5R
OFF
ON
A5
OFF
A4R
OFF
ON
STMT
OFF
LTRR
OFF
ON LGL
B5
OFF
–
ON B4
LTR
OFF
11" x 17"
–
ON 11" x 17"
A4
OFF
– A3
ON A3
Detected size
AB sys- inch
tem system
A5R
B6
B5R
A5
A4R
STMT
LTRR
LGL
B5
B4 LTR
11" x 17"
11" x 17"
A4
A3
A3
2-21