Ricoh FT4215, Руководство по обучению обслуживанию, Страница: 147 / 208

The home position switch [E]
informs the CPU when all the bins
are lowered.
To move the bins up, the bin drive
motor turns clockwise (as viewed
from the front). A timing belt [F]
turns the transfer wheels.
The transfer wheels have two
slots in them 180 degrees apart.
As the transfer wheels turn, these
slots engage the bins and lift them
up. Each time the transfer wheels
turn 180 degrees, they raise one
bin.
To move the bins down, the CPU
reverses the bin drive motor and
the above processes reverses.
The CPU monitors the position of
the bins through pulses generated
by the wheel switch and the
actuator cam [J]. The actuator
cam has two flat sides that are
180 degrees apart and is mounted
behind the rear transfer wheel. A
pulse is generated each time one
of the lobes of the actuator cam
passes the wheel switch.
[B]
[J]
[C]
OFF
ON
OFF
STM 4-9 FT4220/4222