FLAT BED IMAGE SCANNING SECTION
THEORY OF OPERATION
GR3770 3 - 6
4. FLAT BED ORIGINAL SET CONFIRMING SYSTEM
The flat bed original detection sensor serves to confirm that an original has been set on the stage glass.
Stage cover
Image scanner home
position sensor
Stage cover sensor
Flat bed original detection sensor
Open the stage cover.
(Stage cover sensor is turned OFF.)
Image scanner moves to the original detecting
position.
Set an original and close the stage cover.
(Stage cover sensor turned ON.)
Flat bed original detection sensor confirms that an original is held.
Image scanner returns to the home position.
Original detecting position is 120mm away
from the home position in scanning direction.
Optical axis of the stage cover sensor is cut off.
When an original has been set,
panel display changes into "Master making"
and the thermal head is lowered.
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