Paper Lift/Remaining Paper Detection - Toshiba e-STUDIO4500c Service Manual

PAPER FEED

Paper Lift/Remaining Paper Detection

The machine detects when the tray 1 has been placed in the machine by
monitoring the tray set signal through the connector.
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When the machine detects that the tray is in the machine, the right tray paper
sensor [1] (under the tray) checks immediately whether there is paper in the right
tandem tray.
NOTE: This immediate detection saves time. If sensor [1] was not present and the
tray was empty, the bottom plate would have to lift until the 1st tray lift paper end
sensor (at the top of the tray) detected that there was no paper.
The lift operation begins as soon as paper is detected:
Tray 1 Lift motor [2]
Slots at the ends of the tray support rods [7], [8]
The tray goes up until both of the following occur:
The paper pushes up the pick-up roller and the lift sensor is activated
The paper end sensor at the top of the tray is deactivated.
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9
5
8
Coupling gear [3]
6-116
6
4
1
B132D946.WMF
Pin [4] on the lift shaft [5]
Tray bottom plate [9].
August 2006
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3
Wires [6]