Thermal transfer printers produce shades of colors by placing color dots side-by-side (see dithering). Printing faster than dye sublimation, consumables (ribbon and paper) are also less expensive ...

I reviewed the new Canon Selphy QX20, a tiny, battery-powered printer with dye-sublimation quality for on-the-go photo prints ...

A low- to medium-resolution printer that uses a type of coated paper that darkens when heat is applied to it. The paper is passed by a line of heating elements that burn dots onto the paper.