Accordingly, we have examined a new inks based on dyes that have excellent light- and gas-fastness(especially ozonefastness). In this case, the following factors were considered to be important: (1) obtaining an approximate balance in the fading properties of the cyan, magenta, and yellow components; and (2) including the permanence behavior of the black component, due to the black ink, into the permanence evaluation. We have found that this latter factor, which typically has been ignored in conventional permanence evaluations of light- and gas-fastness, is very important with respect to improving overall image permanence.In this report, we present our results on the improved permanence properties of “photo quality” prints of the latest dye ink set, especially the light- and ozone-fastness results.