Ricoh D3EV Посібник з польового обслуговування - Сторінка 35
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Mechanisms
Tray Lift
When the tray lift switch is pressed, the lift motor [A] switches on and pushes the lift plate [B] against
the bottom of the feed tray until the top of the stack is at the correct feed position.
If there is paper in the bypass tray when the main machine has just been switched on, the lift motor will
turn on and lift the stack to the feed position.
As paper is fed, the pick-up roller [C] lowers until it activates the lift sensor which switches on the lift
motor again to raise the stack to the feed level again.
As the bottom plate shaft rotates and raises the bottom plate, the actuator [D] lowers and activates
paper height sensor 1 [E] and then paper height sensor 2 [F] as the bottom plate continues to rise. With
the tray full, the actuator remains upright and deactivates neither paper height sensor. During
continuous feed, the actuator rotates downward through three positions, deactivating the first sensor,
then both sensors, then only the second sensor.
These states are used to report the amount of paper on the operation panel.
SN1
OFF
OFF
ON
OFF
ON
ON
OFF
ON
After the last sheet feeds, the paper end sensor [G] below the feed tray detects that the tray is empty.
When you re-load the tray with paper, be sure to press the tray lift button to raise the bottom of the tray
so the stack is at the correct feed position.
SN2
100% (Full)
90%
50%
10%
2.Detailed Descriptions
Paper Remaining Status
31