Ricoh D131 Service Manual page 1351

Tray Movement Mechanism
A4, LT.
Five sensors and one switch control the operation of the upper tray lift motor [A].
Upper Tray Raising and Lowering
Sensors, Switch
Operation Mode
[C]
Standby
(Non-Staple OFF
Mode)
Straight Through
Shift
Standby
ON
(Staple Mode)
Tray Full
SM
Action
[D] [F] [G]
Stops the lift motor at the standby
position when the actuator of the upper
feeler deactivates sensor [C] (when it is
OFF between sensors [C] and [D]).
Note: Sensor [F] and switch [G] are used
as backup if sensor [C] fails or if the
upper tray is not attached.
ON Non-staple mode operation: During
operation, tray lift is controlled only by
sensor [F]. When the actuator leaves
ON
sensor [F], the tray lowers until the
actuator reactivates sensor [F].
Standby: The upper tray stops and waits
for the paper output when the actuator
activates sensor [C]. [D] is not used for
staple mode
Staple Mode Operation:
45
The upper tray lowers the prescribed
distance immediately after the stack
exits.
The upper tray rises until the
actuator activates sensor [C] and
stops the tray lift motor (and the tray)
to wait for the next set.
Sensor [F] and switch [G] are used
as backup if sensor [C] fails.
B804/B805/D373/D374/D612