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2.2.6 Paper Detection Mechanism (See Figure 2-15.)
(1) Cut sheet detection
When the sheet is inserted, point A is pushed backward and the paper near end lever
B rotates counterclockwise (CCW).
At this time, the rear sensor lever rotates counterclockwise (CCW) and pulls out of the
rear and top paper end sensor to detect that the sheet is inserted.
The procedure for the paper end is the reverse, that is, detection occurs when the paper
end sensor is blocked.
(2) Rear feed detection
When the sheet is fed from the push tractor, the point B is pushed to the front side and
the paper near end lever A rotates clockwise (CW). At this time, the rear sensor lever
rotates counterclockwise (CCW), and pulls out of the rear and top paper end sensor to
detect that the sheet is provided.
The procedure for the paper end is the reverse, that is, detection occurs when the rear
sensor lever interrupts the sensor.
(3) Bottom feed detection
When the sheet is fed from the bottom, the point C rotates clockwise (CW). When the
bottom sensor lever rotates clockwise (CW), it pulls out of the bottom paper end sensor
to detect that the sheet is inserted.
The procedure for the paper end is the reverse, that is, detection occurs when the bottom
sensor lever interrupts the sensor.
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