Paper End Detection - Ricoh G147 Service Manual

When the paper tray is set in the machine, the pick-up roller [9] lowers. When the top sheet
of paper reaches the proper height for paper feed, the paper pushes up the pick-up roller,
and the actuator [10] on the pick-up roller supporter activates the paper height sensor [11] to
stop the tray lift motor.
After several paper feed cycles, the paper level gradually lowers and the paper height
sensor is de-activated. The tray lift motor turns on again until this sensor is activated again.
When the paper tray is removed from the machine, the tray lift motor coupling gear
disengages the pin on the lift arm shaft, and the tray bottom plate then drops under its own
weight.

6.9.5 PAPER END DETECTION

If there is paper in the paper tray, the paper end feeler [A] is raised by the paper stack, and
the paper end sensor [B] is deactivates.
When the paper tray runs out of paper, the paper end feeler drops into the cutout [C] in the
tray bottom plate and the paper end sensor is activated.
SM 6-39 G147