Sensors - Epson L-1000 Technical Manual

PRINCIPLES OF OPERATION

2.1.2.1 Sensors

The printer mechanism is equipped with the following sensors:
Paper-End (PE) Sensor
Home-Position (HP) Sensor
Thermal Sensor (Printhead Temperature)
Paper-End Sensor (PE Sensor)
Figure 2-3 shows the paper-end sensor. This sensor switch is ON when paper runs out.
Paper-out state - ON + LOW level
Paper present - OFF - HIGH level
Home-Position Sensor (HP Sensor)
Figure 2-4 shows the home-position sensor. This sensor switch is ON when the carriage is at the home position.
Home position - ON + LOW level
Other position - OFF + HIGH level
The reference position for the carriage driver is determined by this sensor.
2-4
Figure 2-3. Paper-End Sensor
Figure 2-4. Home-Position Sensor
REV.-A
LQ-500/ L-1000