Ricoh B234 - Paper Lift;Remaining Paper Detection: Tray

PAPER FEED
B234/B235/B236/D101/D102/D103 6-124 SM
Paper Lift/Remaining Paper Detection: Tray 1
The machine detects when the 1st tray has been placed in the machine by
monitoring the tray set signal through the connector.
When the machine detects the 1st paper tray, the right 1st tray paper sensor [N]
(under the tray) checks whether there is paper in the right tandem tray. When
paper is detected, the tray lift motor [A] rotates and the coupling gear [B] on the
tray lift motor engages the pin [C] of the lift shaft [D].
The tray wires [E] are fixed in the slots [F] at the ends of the tray support rods [G,
H]. When the tray lift motor rotates clockwise, the tray support rods and the tray
bottom plate [I] rise. The tray rises until stack pushes up the pick-up roller until the
tray lift sensor de-activates and switches off the tray lift motor.
As the actuator [K] on the right support rod [G] rises, it de-activates each of the 4
paper height sensors [J] to trigger 5 levels of paper remaining alerts on the
operation panel.
Paper Height Sensor Remaining Paper Comment
None 100% Bottom position, no sensors de-activated.
1 75%
2 50%
3 25%
4 Near End
Each sensor de-activates as the actuator rises.
Paper Out
Detected by the paper sensor [N] below the stack
when the last sheet feeds.
When the tray is removed, the coupling gear [B] separates from pin [C], so the tray
bottom plate descends. The tray descends until the actuator activates the lower
limit sensor [L]. The damper [M] provides resistance so the tray bottom plate
descends slowly.
B234D967.WMF
[E]
[A]
[B]
[N]
[C]
[L] [G]
[I]
[D]
[M]
[H]
[F]
[K]
[J]
[E]
[L]