Paper End Sensor Circuit; Release Lever Position Sensor Circuit - Epson LX-300 Service Manual

Operating Principles

2.3.4 Paper End Sensor Circuit

This
printer has a
(HIGH or LOW) from the connector switch and recognizs a paper end. The comector switch is
closed (LOW) when there is no paper on the platen and is open (HIGH) when paper is present.
SYSTEM IC
(ICI)
Figure 2-15. Paper

2.3.5 Release Lever Position Sensor Circuit

This printer has
a
HIGH or LOW signal from the comector switch to indicate whether the paper is fed using friction
feed or push tractor feed. Thecomector switch is closed (LOW) when friction feed is selected and
is open ~HIGH) when push tractor feed is selected.
SYSTEM IC
(lCl)
Figure 2-16. Release Lever Position Sensor Circuit Diagram
2-14
t
4
End Sensor Circuit Diagram
58
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LX-300 Service Mhnual
PE Sensor
Release Sensor