Epson T054040 Gloss Optimizer Inkjet Cartridge for use with R800. Page Yield - 400 pages. To make sure that your prints are looking their best, you need to ensure that you are using the Epson T0540 Gloss Optimiser. Epson is well known for producing high quality products that make prints look professional and ensures efficient printing. This gloss optimiser makes sure that your prints look fantastic, making sure that your prints are not only clear and well defined, but also shining and glossy. The cartridge is easy to install into your printer, slotting in with ease and allowing you to start printing immediately. With 13ml of gloss optimiser, you can print up to 400 pages.