Canon DADF-AA1, Руководство по обслуживанию

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Chapter 3
3-8
F-3-8
3.3 Document Detection
3.3.1 Outline
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This machine detects a document using either of the two methods depending on the print mode.
- Normal print mode (other than mixed size print mode and banner paper mode)
- Mixed size print mode and banner paper mode
a. Normal print mode (other than mixed size print mode and banner paper mode)
In the normal print mode, the following four document detection functions are used:
Function Description Sensor used (symbol)
Document presence/
absence detection Detects whether there is a document on the
document pickup tray. Document set sensor (SR5)
Last document detection Detects whether the document being picked up is
the last one. Last document detection sensor
(SR7)
Initial document size
detection
- Longitudinal direction Detects the length of the document placed on the
document pickup tray. Document length sensor 1/2
(SR9/SR8)
- Lateral direction Detects the width of the document placed on the
document pickup tray. Document width sensor 1/2 (PS2/
PS1)
Start of reading of reverse side
of second document sheet
End of reading of reverse side
of second document sheet
Stop after feeding the second
document sheet to reversal position
Removal of idle reversal registration
loop of second document sheet and
release of re-pickup/delivery roller
Pressurization of second document
sheet delivery roller
Completion of delivery of second
document sheet and end of job