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thermal transfer printer

The thermal transfer printer transfers wax inks by heating them onto paper or another carrier material. The heating takes place via thermocouples, which are located on a heating bar.

The wax colours are applied to colour foils or colour ribbons. They are heated at the points, the wax liquefies and is transferred to the carrier medium. To produce colour tones, the individual colours are printed one after the other using the halftone technique and dithering. This technique is necessary because thermal transfer printers, unlike dye sublimation prin ters, cannot print halftones.

Structure of a Thermal Transfer Printer

Structure of a Thermal Transfer Printer

Like other color printers, thermal transfer printers operate on the CMY or CMYK color model. When printing, the ribbon with the wax colors is unwound around a set of color foils at a time.

Thermal transfer printers as label printers, photo: Endisch-Etiketten

Thermal transfer printers as label printers, photo: Endisch-Etiketten

Thermal transfer printers can print on various materials, such as paper, foil, textiles, metals, etc. and are used, among other things, as label printers. The colour resolution is over 300 dpi, but the colour quality is lower than that of dye-sublimation printers. Thermal transfer printing has advantages for full-surface representations such as those used in presentations.

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Englisch: thermal transfer printer
Updated at: 18.01.2010
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