Star Micronics TUP482-24 - Manual (Page 6)

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2. CONSTRUCTION
2.1 Configuration
The unit printer mechanism is constructed of the following components:
2.2 Principle of Operation
2.2.1 Drive and paper feed
The rotation of the stepping motor is transmitted to the gear, which turns the platen. The rota-
tion of the platen generates friction between it, the thermal paper and the thermal head, there-
fore causing the paper to be fed.
2.2.2 Printer
Color appears on the thermal paper as the temperature of the thermal head’s heat-generating
element increases.
2.2.3 Presenter
The edge of the thermal paper stops just before the presenter’s ejector, the continuous feed of
the thermal paper creates a loop and after printing is finished, the paper is cut. Then, the paper is
fed out by the roller in front of the ejector. (The DC motor rotates the roller)
Unit printer mechanism Thermal printer Sensor
Thermal head
Drive Gear
Platen
Motor Presenter (TUP482 series only)
Cutter (guillotine-type full cutter)
Frame Control and interface boards
Near-end sensor