Toshiba e-studio281c - Process of Detection of Original Size

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SCANNER
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6.7.2 Process of detection of original size
1) When the equipment is in the original size detection mode, carriage-1 is set at its home position.
2) When the platen cover is opened, the sensors receive the light reflected from the original and if one
of the matrix conditions shown in 4) for original sizes are met, the size of the original is instantly
detected.
3) The output signal from each sensor is input to CPU on the scanning section control PC board to
determine the size of the original.
Fig. 6-15
Sensor detection points
SLG board
APS-C
APS-3
APS-2
APS-R
Scanner
CPU
VDD VDD
GND GNDSLG board
APS-C
APS-2
APS-3
APS-1
APS-R
Scanner
CPU
Reflection type
photosensor
Reflection type
photosensor
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A4 Series
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