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Operations Lower Feeder Unit Theory of Operation
2-6
II Composition/Operation
3.1.5 Paper supply level detection control
• There is a window in the front cover of the cassette for indicating the paper supply level.
• When the Paper Lift Plate goes up, a red lever appears in the window. The lower the level
of the paper stack in the tray, the more red that is visible.
3.1.6 Paper empty condition detection control
• The paper empty message is displayed on the panel when the Empty Sensor Actuator
unblocks the Lower Feeder Paper Empty Sensor (PC1 PF).
• No mechanism is provided for detecting a paper near empty condition. The paper supply
level indicator serves this purpose.
Lever
4138to2117c0
4138to2118c0
Paper Lift Plate
Lever Indicator
indicating the
paper supply
level
When paper
is loaded
A paper empty
condition
4138to2119c0
Lower Feeder Paper
Empty Sensor (PC1 PF)
A paper empty
condition
When paper
is loaded
Paper
Paper Lift Plate
Actuator
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