Canon F-1, Service Manual

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Technology > Controls > DADF > Original Size Detection
Technology > Controls > DADF > Original Size Detection
● Original Size Identification
Normal Mode
a. AB type
(Unit: mm)
Original width
volume
(VR)
AB/Inch
identification
sensor (SR7)
LTR-R/LGL
identification
sensor (SR8)
Post-
separation
sensor
(PCB3)
Measurement
value in feed
direction
Detected size
width > 289
- ON *1 ON *1 - A3
- OFF OFF - A4
289 =/> width >
272
- ON *1 ON *1 - A3/K8 *2
- OFF OFF - A4/K16
*2
272 =/> width >
247
- ON *1 ON *1 - B4
- OFF OFF - B5
247=/> width > 200
- - - length =/> 222 A4-R
- - - length < 222 A5
200=/> width > 172 - - - length < 193 B5-R
172=/> width >
138.5
- - - length =/> 253 A4-R
- - - length < 253 A5-R
138.5=/> width - - - - B6-R
*1: OR identification
*2: K-paper is detected when K-paper is supported.
T-2-17
b. Inch type
(Unit: mm)
Original width
volume (VR)
AB/Inch
identification
sensor (SR7)
LTR-R/LGL
identification
sensor (SR8)
Post-
separation
sensor
(PCB3)
Measurement
value in feed
direction
Detected size
width > 289
- ON * ON * - LDR
- OFF OFF - LTR
289 =/> width >
272
- ON * ON * - LDR
- OFF OFF - LTR
272 =/> width >
247
- ON * ON * - LDR
- OFF OFF - LTR
247=/> width >
200
- ON * - length =/> 282 * LGL
- OFF - length =/> 209 LTR-R
- OFF - length < 209 STMT
200=/> width >
172
- ON * - length =/> 282 * LGL
- OFF - length =/> 209 LTR-R
- OFF - length < 209 STMT
172 =/> width - - - - STMT-R
*: OR identification
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