Star Micronics LC-4511 Technical Manual page 33

(3) Paper end Detector
The paper end Detector is located in the paper chute unit. The A/D converter in the CPU detects the presence or
absence of paper.
(4) Release lever switch
Detecting
signal
V +5V
Ref
R1
+5V
R2
AN
C1
CPU
Fig. 2-10 Paper end detector circuit
+5V
R1
Fig. 2-11 Release lever switch circuit
Control Method
Output
(V)
0
5
– 29 –
THEORY OF OPERATION
Paper
R3
R2
Leaf switch
Release
Lever SW
Tractor
Friction