Tray Lift - Ricoh B202 Service Manual

TRAY LIFT

2.4 TRAY LIFT
[F]
[E]
[G]
[A]
[C]
[D]
B600D103.WMF
[B]
When the paper feed tray is put in the machine, the tray sensor on the back face
turns on and the tray lift motor [A] starts. The base plate lift shaft [B] is coupled to
the lift motor at shaft [C], so the base plate of the tray is lifted. After a short while,
the top of the paper stack contacts the pick-up roller and lifts it up.
When this occurs, the actuator enters the upper limit sensor, the sensor turns off
and the lift motor stops. When paper in the tray is used up, the pick-up roller is
gradually lowered, and the actuator leaves the upper limit sensor (turning the
sensor on). When this happens, the lift motor begins turning again. The tray will
then be lifted until the actuator enters the upper limit sensor (turning the sensor off
again).
When the tray is removed from the printer, the coupling between the lift motor and
base plate lift shaft is broken and the base plate goes into a controlled free fall
(using a damper [D] to slow the fall and prevent damage).
B600 14 SM