Epson TM-J8000 Spezifikationen PDF herunterladen (Seite 50)

2-24 Outline of Operation Rev. A

Confidential

A spring within the microswitch holds the lever so that it juts out into the paper path. When roll

paper moves along the path, it presses the lever back out of the path, causing the microswitch

contact to open. When paper runs out, the spring pulls the lever back into position, closing the

contact on the microswitch.

Figure 2-35 Roll paper detector mechanism

Roll paper nearend detector mechanism

This mechanism consists of a nearend detector lever and a microswitch. The mechanism is

mounted on the side of the roll paper guide ("Paper guide, roll paper"), and serves to detect the

amount of paper remaining on the roll.

A spring inside of the microswitch presses the lever against the side of the paper roll. As long as

there is sufficient paper on the roll, the lever keeps the microswitch contact closed. As paper

runs out, the edge of the lever moves into the paper core. In this state, the microswitch contact is

open and detects paper-out.

Figure 2-36 Roll paper nearend detector mechanism

plate, paper guide

roll paper detector

(micro switch)

roll paper

lever position (no paper)

detection lever

lever position (paper is present)

paper guide, roll paper

microswitch

paper guide, roll paper

roll paper

nearend detector lever

(nearend detection position)

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Epson TM-J8000 Spezifikationen Seite 50