Canon IMAGERUNNER 2530, Руководство по обслуживанию

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Technology > Original Exposure System > Controls > Detecting the Size of Originals
Technology > Original Exposure System > Controls > Detecting the Size of Originals
Detecting the Size of Originals
Overview
The original size is identified by the combination of presence and absence of output levels of
the reflection type sensors as summarized in the tables below.
- Absence of paper: The light reflected from the reflection type sensor changes when the
copyboard cover is open/close.
- Presence of paper: The light reflected from the reflection type sensor does not change when
the copyboard cover is open/close.
This machine is provided with the following sensors. Locations of the sensors are shown
below.
- Vertical scan direction: Reflection type photo sensors (2 locations for AB; 1 location for Inch)
- Horizontal scan direction: Reflection type photo sensors (2 locations for AB; 2 locations for
Inch)
■
●
B5
A4R
A4
STMT-R
LTR-R
LTR 11"
×
17"
LGL
B5R
Index plate
Original sensor 3
指標板
B4
A3
AB-Configration
Inch-Configration
Original sensor 2B
Upper left corner
of original
Upper left corner
of original
V
er
tical scan direction
V
er
tical scan direction
Horizontal scan direction
Horizontal scan direction
Original sensor 0
Original sensor 1
Original sensor 2A
Original sensor 3
Original sensor 0
F-2-17 F-2-17