Epson LQ-510 - Page 47

REV.-A
PRINCIPLES OF OPERATION
Home-Position Sensor (HP Sensor)
Figures 2-5 and 2-6 show the home-position sensor. The sensor switch is ON when the carriage is at the
home position.
Home position
+ ON + LOW
Other positions
+ OFF + HIGH
The reference position for the carriage drive is determined by this sensor.
Home-Position Sensor
shaft
Figure 2-5. Home-Position Sensor Mechanism
Figure 2-6. Home-Position Sensor Circuit
LQ-510
2-5