Patent ID: 6715861
Filing Date: 2004-04-06
Classification: B41J

Abstract:
An ink jet head having a plurality of nozzles for discharging ink supplied thereto from an ink supplying part, characterized in that comprising;a head body member including a plurality of pressure chambers provided one for each of said nozzles for being filled with the ink and a plurality of pressurization elements provided one for each of said pressure chambers for pressurizing said pressure chambers to discharge the ink in said pressure chambers from said nozzles, that an ink staying space for temporarily staying the ink from said ink supplying part therein is formed between said head body member and said ink supplying part, and that a plurality of ink supplying paths for communicating said ink staying space and said plurality of pressure chambers individually with each other are formed in said head body member such that one end side of each of said ink supplying paths is open to said ink staying space on an outer face of said head body member and the other end side of each of said ink supplying paths is open to a corresponding one of said pressure chambers, a framework member is provided in a projecting manner on said head body member in such a manner as to surround openings of said plurality of ink supplying paths on the outer face of said head body member, said ink staying space is formed by said framework member, head body member and ink supplying part, and said head body member is formed on a substrate, and said framework member is formed as a remaining portion of said substrate on said head body member by partially removing said substrate from said head body member.