Epson EPL-N4000 - Page 97

EPSON EPL-N4000/EPL-N4000+ Chapter 2 Operating Principles
Rev.B 83

Re
g
istration Sensor
Monitors paper travel out of the paper tray.

No Paper Sensor 1
Monitors the paper level in Feeder 1. When the Lift Motor raise the
Bottom Plate, the Plate raises the paper stack, the stack pushes the
No Paper Actuator up and away from the No Paper Sensor. The
Sensor sends a
paper present
si
g
nal to the MCU PWB. When the
last sheet of paper is fed out of the Paper Tray, the No Paper
Actuator drops throu
g
h a cutout in the Bottom Plate. The Actuator
then blocks the Sensor, and the Sensor sends a no paper si
g
nal to
the MCU PWB.
Figure 2-41. No Paper Sensor
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Level 1 Sensor
Monitors whether or not Tray 1 is installed. Installin
g
the Tray
pushes the Link Stopper out, which in turn lowers the Feed Roll and
moves the Level 1 Sensor Actuator tab away from the Sensor
window.
Figure 2-42. Level 1 Sensor
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MSI Size Sensor
Monitors the size of paper that is loaded in the MSI.
sr1495