Remaining Paper Detection Control - Konica Minolta Bizhub 501 Service Manual

Theory of Operation Ver.1.0 May. 2008
4.2.2

Remaining paper detection control

As paper in the tray gets reduced, the lift plate goes up gradually. The actuator [1] provided on the rear side of
LU rotates in interlock with the up/down operation of the lift plate. The actuator is provided with the remaining
paper sensors /1 (PS154) [3] and /2 (PS151) [2] and the remaining paper is detected by the combination of the
ON/OFF of these sensors. And the no paper detection in the tray is made by the paper empty sensor (PS153)
[5].
Remaining paper quantity
Full quantity
Medium quantity
Small quantity
[5]
[1] Actuator
[2] Remaining paper sensor /2 (PS151)
[3] Remaining paper sensor /1 (PS154)
PS151 PS154
OFF ON
ON ON
ON OFF
[3]
[2]
[4] Direction of rotation when the tray goes up
[5] Paper empty sensor (PS153)
4. PAPER FEED SECTION
[4]
[1]
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