Xerox Phaser 3140

Phaser 3140/3155/3160 Printer Service Manual 10-13
Wiring
Denotes a Photo Sensor.
Denotes an LED.
Denotes a Safety Interlock Switch.
Denotes an On-Off Switch (single-pole, single-
throw switch).
Denotes an On-Off Switch (Temperature -
normally close).
Denotes an NPN Photo-transistor.
I/L +24 VDC Denotes DC voltage when the Interlock Switch
in MCU Board turns On.
+5 VDC
+3.3 VDC
Denotes DC voltage.
SG Denotes signal ground.
AG Denotes analog ground.
RTN Denotes return.
Symbol Description
Optic Sensor
LED
Safety Interlock Switch
On Off Switch
Temperature Switch
NPN Phototransistor
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