Ricoh Aficio FT4027, Service Manual

Page: 631 / 685

6. BIN DRIVE MECHANISM
The bin drive mechanism moves the bins up and down to receive copies. The
main components in this mechanism are the bin drive motor [A], the two
helical wheels [B], the wheel sensor [C], and the bins themselves [D]. There
are four pins on each bin. Two of them fit in the slots in the helical wheels.
Another pin fits into the slot [E] in the front side frame, and the last pin fits in
the guide rail [F]. The pins slide up and down in these slots.
Two timing belts transmit drive from the bin drive motor to the helical wheels.
When the motor rotates clockwise, the bins lift (black arrow) and when it
rotates counterclockwise, the bins lower (white arrow). The wheel sensor
actuator on the front helical wheel has a slot which detects when the helical
wheel has rotated 360 degrees.
When the bins are advanced, the helical wheels rotate once (360 degrees)
for each step.
As the pitch of the spiral on the helical wheel is greater when bins are at the
staple and paper exit area than when bins are elsewhere, the amount of bin
shift is greater when bins are at the staple and paper exit area. This leaves
enough space to staple [G] and stack paper [H] and reduces the total
machine height.
[A]
[B]
[C]
[D]
[E]
[F]
A664D509.wmf
15
45
30
40
15
40
15
[H]
[G]
A664D510.wmf
20-
Bin Sor
ter
St
apler ST30
(A664)
BIN DRIVE MECHANISM
SM 3-13 A207/A208/A211