Tray Lift - Ricoh B156 Service Manual

2.6 TRAY LIFT

[A]
[E]
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When the paper feed tray is put in the machine, the tray switch on the back turns
on and the tray lift motor [B] starts. The base plate lift shaft [C] is coupled to the lift
motor at the shaft [D], so the base plate [A] of the tray is lifted. After a short while,
the top of the paper stack contacts the pickup roller and lifts it up. Then the motor
stops lifting the plate when the upper limit sensor actuator enters the sensor (☛
2.2).
When paper in the tray is used up, the pick-up roller is gradually lowered, and the
actuator leaves the upper limit sensor [F]. When this happens, the lift motor begins
turning again. The tray will then be lifted until the actuator enters the upper limit
sensor again).
When the tray is removed from the copier, the coupling between the lift motor [B]
and base plate lift shaft [C] is broken and the base plate goes into a controlled free
fall (using a damper [E] to slow the fall and prevent damage).
SM
CÓPIA NÃO CONTROLADA
[F]
13
CÓPIA NÃO CONTROLADA
[B]
[D]
[C]
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TRAY LIFT
B457