Ricoh FT5233 Service Manual page 765

12 February 1992 BIN DRIVE MECHANISM
[A]
[D]
[B]
[C]
[E]
The transfer wheels have two slots in them 180 degrees apart. As the
transfer wheels turn, these slots engage the pins of the bins and lift them up.
Each time the transfer wheels turn 180 degrees, they raise one bin.
The CPU counts the bins using the wheel sensor. A cylindrical actuator on
the front transfer wheel turns the wheel sensor on and off. This actuator has
two notches that are 180 degrees apart. The wheel sensor turns on each
time one of the slots passes through the sensor.
To move the bins down, the CPU reverses the bin drive motor and the above
process reverses.
The home position sensor [A] is located at the lower rear end of the sorter.
When all the bins are lowered, the lift bar [B] presses down on the actuator
[C], actuating the sensor. The CPU checks the sensor whenever the power is
turned on. At this time, if the bins are not in the home position, the home
position sensor is deactuated the CPU will return the sorter bins to the home
position.
The mounting position is about 18.5 degrees off between the front transfer
wheel [D], and the rear transfer wheel [E]. Therefore, the front and rear of the
bins do not rise simultaneously thus avoiding unusual noises and also
reducing load.
9