Canon F-1, Service Manual

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Technology > Controls > DADF > Original Size Detection
Technology > Controls > DADF > Original Size Detection
Mix of different configuration mode
a. AB Type
(Unit: mm)
Original width
volume
Original
size
sensor 1
(SR17)
Original
size
sensor 2
(SR18)
Original
size
sensor 3
(SR19)
Original
size
sensor 4
(SR20)
Post-
separation
sensor
(PCB3)
Measurement
value in feed
direction
Detected
size
width > 272
ON - - - ON - A3
ON - - - OFF - A4
OFF ON - - ON - B4
OFF ON - - OFF - B5
- OFF - ON ON length =/> 222 A4-R
- OFF - ON OFF length < 222 A5
- - - OFF - - B5-R
272 =/> width
> 247
ON - - - ON - B4
ON - - - OFF - B5
OFF - ON - - length =/> 222 A4-R
OFF - ON - - length < 222 A5
- - OFF ON - - B5-R
- - - OFF - - A5-R
247 =/> width
> 200
- ON - - ON length =/> 222 A4-R
- ON - - OFF length < 222 A5
- OFF ON - - length =/> 193 B5-R
- OFF OFF - - length > 200 A5-R
- OFF OFF - - length =/< 200 B6-R
200 =/> width
> 172
- - ON - - length =/> 193 B5-R
- - OFF - - length > 200 A5-R
- OFF OFF - - length =/< 200 B6-R
172=/> width
- - ON - - - A4-R
- - OFF - - - B6-R
T-2-23
b. Inch Type
(Unit: mm)
Original width
volume
Original
size
sensor 1
(SR17)
Original
size
sensor 2
(SR18)
Original
size
sensor 3
(SR19)
Original
size
sensor 4
(SR20)
Post-
separation
sensor
(PCB3)
Measurement
value in feed
direction
Detected
size
width > 272
- ON - - ON - LDR
- ON - - OFF - LTR
- OFF ON - ON - LGL
- OFF ON - OFF length =/> 209 LTR-R
- OFF ON - OFF length < 209 STMT
247 =/> width
> 200
- ON - - ON - LGL
- ON - - OFF length =/> 209 LTR-R
- ON - - OFF length < 209 STMT
- OFF - - OFF - STMT-R
172=/> width - - - - - - STMT-R
T-2-24