Remaining Paper Detection Control - Develop ineo+ 6500 Service Manual

Theory of Operation Ver1.0 Sep.2006
15.3.4

Remaining paper detection control

• Remaining amount of papers in the tray is detected by the paper near empty sensor /1 (PS32), /2 (PS38), /
3 (PS44) [2].
• As the papers get lower, the actuator [6] on the front side of the tray is gradually rotated.
• The PS32, PS38 and PS44 turn on and off each time the slits [3], [4] and [5] of the actuator passes through.
• The main body control section counts the number of on/off's of the PS32, PS38 and PS44 to detect the
amount of remaining paper in four levels.
Slit count
0
1
2
3
[1] Rotation direction when lift plate goes up
[2] PS32, PS38, PS44
[3] Slit
Remaining amount of paper
100 to 75%
75 to 50%
50 to 25%
25 to 0%
[4]
[5]
[6]
15. PAPER FEED SECTION
Remaining amount Indication on
the touch panel
4 lit
3 lit
2 lit
1 lit
[2]
[6] [5]
Slit
Slit
Actuator
[1]
[3]
[4]
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