Mixed Width Document Size Detection - Canon DADF-AV1 Service Manual

Document width detection
More than OFF
288.2

Mixed width document size detection

In case that mixed width and length documents are set, 3 types of paper detections such as maximum width, other than maximum
width and length are performed.
The maximum width is detected by the Document width sensor 1/2/3(SR13/SR14/SR15) in the same way of initial document size
detection.
Width other than maximum width is detected by the Different width sensor 1/2/3/4 (SR9/SR10/SR11/SR12).
Document length is detected by ON state on the Read sensor (SR2) and OFF state on the Registration sensor (SR1). Each
document size is determined by the combination of the ON/OFF states on these sensors.
SR2
Same series mixed width document combination
Same series of size (AB configuration)
A4
A3 A
B4 -
A4R -
B5R -
11 × 17 -
LGL -
LTRR -
STMT -
Different series mixed width document combination
AB configuration Mixed
Maximum size Width (mm)
ON OFF
SR15
SR12
B5 A5
- -
A -
- A
- -
- -
- -
- -
- -
B4
257
Document length detec-
tion
ON ON
OFF ON
ON OFF
OFF OFF
SR14
SR11
SR10
SR9
SR1
Same series of size (Inch configuration)
B6 LTR
- -
- -
- -
A -
- A
- -
- -
- -
Different series of size
B5 A4R A5
210
25
2. Technical Explanation
Detected size
A3 11 × 17 A3
- 11 × 17 A3
- 11 × 17 A3
A4 LTR A4
SR13
LGL LTRR
- -
- -
- -
- -
- -
- A
A -
A A
B5R B6
182
A3
A3
A3
A4
STMT
-
-
-
-
-
A
A
-
A5R
148.5