Prints on the Photo Board are offered at 11x14 and 16x20 inches. Prints on the Photo Satin paper can be made at 16x20 and 20x30 inches only. Gamut comparison between Costco's Epson 78 printers.Landscape photographers in particular may want to choose (if possible) which Costco lab to use depending on the subject of their large format prints. The 7880 series produces more highly saturated cyans and greens, while the 7890 pushes further into magenta and red. There are, however, significant differences between the output of the Epson 78 printers.Mid-tone color gamut for Costco's Epson 7880 printers.The difference is caused by the Satin paper allowing deeper blacks (dmax) than the Board. Maximum contrast ratio on the Satin paper is in the 120:1 to 140:1 range while the Photo Board tops out at 90:1 - 100:1. Print contrast also moderately favors the Photo Satin. The main difference is in saturated yellows and oranges, where the Photo Satin allows more saturation than does the Photo Board. Fuji tunes the Epson output to produce approximately the same color range (gamut) on each paper stock.In general, optical brighteners fade faster than the base paper discolors. If image permanence is a primary consideration, printing on the Photo Board is likely the best option.
As of late 2010 there are no print longevity data available for the combination of Epson printer and Fujifilm paper.
For general printing, the standard Costco Photo lab printers should be used. These printers are only used for large format prints and offer a limited number of print size options. Costco photo labs use Epson Stylus Pro 78 inkjet printers for poster prints.
The profiles themselves can be downloaded here. We (Dry Creek Photo) have been asked by Costco's One Hour Photo to provide additional instructions regarding their poster printing service, including how to best utilize the Dry Creek Photo printer profiles with these machines. Instructions for using Costco's Poster Printers