Patent ID: 6234613
Filing Date: 2001-05-22
Classification: B41J

Abstract:
An inkjet print cartridge, comprising:an ink supply;a substrate;a plurality of individual ink ejection chambers defined by a barrier layer formed on said substrate and having an ink ejection element in each of said ink ejection chambers for ejection drops of ink having substantially constant, predetermined drop volume and drop velocity,said ink ejection chambers each having an inlet channel and said ink ejection chambers arranged in an array spaced so as to provide a predetermined resoulution;a plurality of nozzles having a plurality of ink orifices formed therein, said nozzles being positioned to overlie said barrier layer with said orifices aligned with said ink ejection chambers, wherein said nozzles have a thickness matched to a size of said ink ejection element and the thickness of said barrier layer; andan ink channel connecting said supply of ink with said inlet channel.