Tray Lift - Ricoh B230 Service Manual

Tray Lift

2.4 TRAY LIFT
When the paper feed tray is pushed in the machine, the tray switch on the back turns on
and the tray lift motor [A] starts. The base plate lift shaft [B] is coupled to the lift motor at
the shaft [C], so the base plate [D] of the tray is lifted. After a short while, the top of the
paper stack contacts the pick-up roller and lifts it up. Then the motor stops lifting the plate
when the upper limit sensor actuator enters the sensor ( "Electrical Component
Layout").
When paper in the tray is used up, the pick-up roller is gradually lowered, and the actuator
leaves the lift sensor [E]. 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 [A] and base
plate lift shaft [B] is broken and the base plate goes into a controlled free fall (using a
damper to slow the fall and prevent damage).
SM 17 B801