Heat transfer printing generally requires three or four color bands, and a color page needs to be printed three to four times. The heat transfer printer can use ordinary paper with high printing accuracy and bright colors, but it is slow in printing speed and expensive in cost and operation.

The thermal transfer printer can print continuous tone pictures of near photo quality. It is generally used for prepress and professional graphic output. Thermal conversion printers mainly include the following categories: thermal sublimation printer, solid wax spraying printer, thermal wax printer, and micro dry processing printer.