Sublijet-R inks are formulated specifically for Ricoh printers to consistently produce bright, vibrant, accurate colors. All Sublijet-R inks are environmentally friendly, water based inks. The new higher viscosity formulation of these sublimation inks is designed to work exclusively with the Ricoh print head. Sublijet-R inks are designed for the Ricoh GX e2600, GX e3300N.