Patent ID: 6053602
Filing Date: 2000-04-25
Classification: B41J

Abstract:
An on-demand multi-nozzle ink let head, comprising:walls and a diaphragm defining a predetermined number of pressurizing chambers that are filled with ink;a predetermined number of piezoelectric stacks attached to the diaphragm so as to be in one-to-one correspondence with the predetermined number of pressurizing chambers, each of the predetermined number of piezoelectric stacks having a pair of input terminals to which an electric signal is applied and being deformed in response to the electric signal, causing pressure in a corresponding pressurizing chamber to increase; andan elastic adhesive material that bonds the predetermined number of piezoelectric stacks to the diaphragm, the elastic adhesive material having a Shore hardness of less than 80 on an A scale or less than 30 on a D scale.