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Machine Design ＞ Electric parts (Optional unit)
[CONFIDENTIAL]
1PF PWB
Controls electrical components in the bulk paper feeder and
communications with the printer.
2 PF tray top position sensor
This sensor, when the top of the paper stack in the paper tray has reached
the top most position, ready for feeding paper through the bulk paper feeder
output slot.
3 PF paper feed sensor
This sensor monitors the presence of paper at the bulk paper feeder output
slot.
4 PF tray bottom position sensor
This sensor, when stepped on by the paper tray as the paper tray descends.
5 PF cover switch
This switch reports CPU as to whether the tray cover is closed or open.
6 PF lift motor
This is a DC servo motor to raise or descends the paper tray.
7 PF paper feed motor
Drive the paper feed roller to pull paper out from the paper tray and feed it to
the printer.
8 PF interface conector
+24V and +5V power is suppled from the printer and sends/receives the
control signal of the priner engine PWB and PF main PWB.
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