Remaining Paper Detection - Ricoh B230 Training Program

In the right tray (paper feed side), three height sensors measure the height of the
stack, and an end sensor detects when all the paper is used.
When the quantity of remaining paper in the tray decreases, the base plate goes
up and the paper height sensors detect the actuator.
When the right tray is empty, the stack in the left tray is moved across, to the right
tray.
There are also two height sensors and an end sensor in the left tray (paper
storage side).
When there is no paper in the left tray and in the right tray, paper end is detected.
See below for details on how these sensors detect the quantity of remaining paper.
Right Tray
Amount of paper
100%
70%
30%
10%
Paper End
Left Tray
Amount of paper
100%
70%
30%
Paper End

Remaining Paper Detection

Paper Storage Side
Paper Height
Sensor 5
Paper Height
Sensor 4
Paper End
Sensor 2
Paper end is detected when none of these sensors detects an
actuator.
Paper Height Sensor
1 2 3
OFF OFF OFF
OFF OFF ON
OFF ON -
ON - -
- - -
Paper Height
Sensor
4 5
OFF OFF
ON OFF
ON ON
ON ON
Paper Feed Side
Paper End
Sensor 1
Paper Height
Sensor 1
Paper Height
Sensor 2
View of
the LCT,
from the
Paper Height
front,
Sensor 3
towards
the rear.
Paper End
Sensor
ON
ON
ON
ON
OFF
Paper End Display No. of
Sensor
OFF
OFF
OFF
ON
222
Display No. of
Line
4
3
2
1
0
Line
4
3
2
0
222