PRINCIPLES OF OPERATION
REV.-A
2.1.2.1 Sensors
The printer mechanism is equipped with the following sensors:
Paper-End (PE) Sensor
Home-Position (HP) Sensor
Thermal Sensor (for sensing printhead temperature)
Platen Gap (PG) Sensor
Friction/Tractor Sensor
Paper-End Sensor (PE Sensor)
Figures 2-3 and 2-4 show the paper-end sensor. This sensor switch is ON when no paper is in place (e.g.,
when the paper supply has run out).
Paper out
+
ON
-,
LOW
Paper present
+
OFF
-,
HIGH
Paper out
Figure 2-3. Paper-End Sensor Mechanism
Figure 2-4. Paper-End Sensor Circuit
2-4
LQ-510
To Next Page
Loading...
