Service manual

PAPER HEIGHT DETECTION
SM 2-9 B358
Detailed
Descriptions
2.6 PAPER HEIGHT DETECTION
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B358D506.WMF
The amount of paper in the tray is
detected by the combination of two paper
height sensors [A] and [B].
When the amount of paper decreases, the
bottom plate pressure lever [C] moves up
and the actuator [D] which is mounted on
the same drive shaft as the pressure lever
rotates.
The following combination of sensor
signals is sent to the printer controller.
Amount of
Paper
Paper Height
Sensor [A]
Paper Height
Sensor [B]
Full OFF ON
Near Full ON ON
Near End 1 ON OFF
Near End 2 OFF OFF
[A]
[B]
[C]
[D]