TrustedReviews posted a review of the Samsung SPP-2040 dye-sub printer

Print quality is very good with natural and accurate colours printed without dots. The dye sublimation technique means ink is transferred as a vapour from the backing film to the paper, so you get a ‘continuous tone’ print, very similar to a classic, silver halide photograph. The printer lays three different colours onto the paper: yellow, magenta and cyan in that order, and then it lays a clear transparent layer over the top to protect the printer from light and ozone attack. The cover layer also gives the print an attractive, glossy coating. Even with only three-colour prints, black is well reproduced.

Samsung SPP-2040