Component Layout
SM 11 D331
Paper Tray
Unit PB3030
D331
Motors
M1 Paper Feed Drives all rollers. 1
M2 Upper Lift Lifts the upper tray bottom plate. 3
M3 Lower Lift Lifts the lower tray bottom plate. 18
Sensors
S1 Upper Lift
Detects when the paper in the upper tray is at
the correct feed height.
2
S2 Lower Lift
Detects when the paper in the lower tray is at
the correct feed height.
20
S3 Upper Paper End
Informs the copier/printer when the upper tray
runs out of paper.
16
S4 Lower Paper End
Informs the copier/printer when the lower tray
runs out of paper.
15
S5
Vertical
Transport
Detects misfeeds. 13
S6
Upper Paper
Height 1
Detects the amount of paper in the upper tray. 6
S7
Upper Paper
Height 2
Detects the amount of paper in the upper tray. 5
S8
Lower Paper
Height 1
Detects the amount of paper in the lower tray. 12
S9
Lower Paper
Height 2
Detects the amount of paper in the lower tray. 11
S10
Upper Paper
Size
Determines what paper size is in the upper tray. 21
S11 Lower Paper Determines what paper size is in the lower tray. 19
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