Epson Stylus Pro 9000 - Print Engine - Paper Feed Sensors

EPSON Stylus Pro 9000
Technical Overview 29
PAPER FEED SENSORS
The printer relies on the following sensors for paper feeding:
 Front Paper Sensor
This optical sensor is attached to the back side of the Lower Paper Guide,
and detects the front edge (top or leading edge) of the paper.
 Rear Paper Sensor
This optical sensor is attached to the back side of the Lower Paper Guide,
and detects the rear edge (bottom or trailing edge) of the paper.
 Paper Release Lever Position Sensor
The Paper Release Lever is located on the right side of the printer, and the
sensor attaches to the bottom of the lever, inside the right-side frame. This
sensor’s signal is ON when the lever is in down, which allows the printer to
print.
Figure 2-10. Paper Feed Sensors
Rear Paper
Sensor
Paper Thickness
Sensor
Paper Release
Lever
Front Paper
Sensor
Paper Release Lever
Position Sensor