August 2006 PAPER FEED
6-117
Detailed
Descriptions
Paper remaining: The amount of paper remaining in the tray is detected by which
combination of the three paper height sensors [1] , , are actuated by the
actuator on the left rail as the bottom plate rises.
• W ith the actuator below paper height sensor (the bottom sensor), no sensor is
actuated and the display indicates the tray is full.
• W hen the actuator passes paper height sensor , the display indicates 50% of
the paper supply remaining.
• W hen the actuator passes paper height sensor (the middle sensor), the
display indicates 30% of the paper supply remaining.
• W hen the actuator passes paper height sensor (the top sensor), the display
does not change. This prevents the signal from returning to the off state, which
would indicate 100% of the paper remaining (the same state as when the
actuator is below the paper height sensor ).
Paper near-end: Detected when the actuator [2] on the right rail activates the
paper near end sensor [3]. When the actuator passes this sensor, the display
indicates 10% of the paper supply remaining.
Paper end: After the last sheet feeds, the right tray paper sensor [4] below the
bottom of the tray actuates and signals paper end. When paper runs out in the right
tray, the stack must be moved across from the left tray. To do that, the tray must
first be lowered. The tray lift motor [5] reverses until actuator [2] activates the right
tray down sensor [6].
When removing the tray manually, if paper is still present, the tray lowers under its
own weight as follows:
• Coupling [7] separates from pin [8] Î Tray bottom plate [9] moves down.
• Damper [10] lets the tray bottom plate drop slowly.
B132D947.WMF
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