초록 ▼

In accordance with the invention, an ink-jet printing system and fluid supply configuration are disclosed that utilize the advantages of reactive fluids while allowing for maximum flexibility in the design and architecture of the ink-jet printing system. The ink-jet-printing apparatus includes a pri

In accordance with the invention, an ink-jet printing system and fluid supply configuration are disclosed that utilize the advantages of reactive fluids while allowing for maximum flexibility in the design and architecture of the ink-jet printing system. The ink-jet-printing apparatus includes a printhead portion having at least one integral printhead portion, the printhead portion having at least two ejector portions; and at least one reservoir portion associated with the printhead portion, the reservoir portion having at least two reservoir chambers, each reservoir chamber for providing fluid to one of the at least two ejector portions, one of the chambers including a reactant fluid and the other chamber including at least one ink non-reactive with the reactant fluid.

대표청구항 ▼

[ What is claimed is:] [1.]1. An ink-jet printing apparatus, comprising:a least one printhead portion having at least one integral printhead portion, the printhead portion having at least three ejector portions; andat least one reservoir portion associated with the printhead portion, the reservoir p

[ What is claimed is:] [1.]1. An ink-jet printing apparatus, comprising:a least one printhead portion having at least one integral printhead portion, the printhead portion having at least three ejector portions; andat least one reservoir portion associated with the printhead portion, the reservoir portion having at least three reservoir chambers, each reservoir chamber for providing fluid to one of the at least three ejector portions, one of the reservoir chambers including a reactant fluid, the other two reservoir chambers, each chamber including an ink, wherein(1) at least one of the inks undergoes a reaction when contacted with the reactant fluid, the reaction being (a) a pH-sensitive colorant precipitating out of the ink when a certain pH range around the colorant is achieved, (b) a colorant precipitating out of the ink when the colorant binds with a precipitating agent from the reactant fluid, (c) an anionic colorant precipitating out of the ink when the colorant binds with a cationic polymeric dispersant from the reactant fluid, or (d) a cationic colorant precipitating out of the ink when the colorant binds with an anionic polymeric dispersant from the reactant fluid;(2) at least one of the inks does not undergo a reaction when contacted with the reactant fluid, the reaction being (a) a pH-sensitive colorant precipitating out of the ink when a certain pH range around the colorant is achieved, (b) a colorant precipitating out of the ink when the colorant binds with a precipitating agent from the reactant fluid, (c) an anionic colorant precipitating out of the ink when the colorant binds with a cationic polymeric dispersant from the reactant fluid, or (d) a cationic colorant precipitating out of the ink when the colorant binds with an anionic polymeric dispersant from the reactant fluid.