Theory of Operation Ver. 2.0 Aug. 2007
5.2.3
Tray position detection mechanism
• The tray moves up or down according to the amount of paper fed onto it.
• If the elevator top face detection sensor is activated when a sheet of paper is fed onto the
tray, the elevator tray is temporarily lowered until the elevator top face detection sensor is
deactivated and then the tray is raised to a level, at which the elevator tray.
• Elevator top face detection sensor is activated again. This is done when each time a
sheet of paper is fed onto the tray to keep the same height at all times for the elevator top
face detection sensor of the paper on the tray.
Elevator top face
detection sensor (PS12)
5. Operations
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