The HP Photosmart 8750 printer is a new 9-ink dye-based printer introduced by Hewlett-Packard in 2005. The 9 inks utilized by the 8750 are contained in three tri-chamber print cartridges which include the traditional CMY cartridge, a three-gray ink cartridge, and a new cartridge that contains light cyan, light magenta, and blue ink (cmB). The light- and ozonefastness of the HP Photosmart 8750 output was evaluated on a variety of photo and artistic ink-jet media. High permanence, in parity with pigment based systems, was measured on HP Premium Plus Photo Paper. Uncoated artistic media were also found to provide good light and ozone stability for images with or without protection by glass. However, all tested coated artistic media do require glass protection to ensure image stability against ozone and light.
Alexey Kabalnov, Luanne Rolly, Jay Gondek, "9-ink Printing Using Vivera Inks: Image Quality and Permanence on Photo and Visual Arts Media" in Proc. IS&T Int'l Conf. on Digital Printing Technologies (NIP21), 2005, pp 364 - 370, https://doi.org/10.2352/ISSN.2169-4451.2005.21.1.art00009_2