Liquid jet recording head with laminated heat resistive layers on a support member
AssigneeCanon Kabushiki Kaisha
InventorHirokazu Komuro
Life of this patent
Estimating the term…
Abstract
A liquid jet head having: a discharge port for discharing liquid; a liquid path communicating with the discharge port; and a plurality of electro-thermal converting elements for generating thermal energy used for discharging the liquid, wherein each of said electro-thermal converting elements has heat resistive layer and at least one pair of electrodes electrically connected to the heat resistive layer, and the heat resistive layers are laminated together with intermediate layers of insulator to form a laminate in a direction perpendicular to a direction at which the liquid is supplied to a heat acting surface of the electro-thermal converting elements.
Claims24
An ink jet head comprising:
- ink discharge ports for discharging ink therethrough;
- an ink path communicating with said discharge ports;
- a plurality of separate plural-layer laminates each presenting separate heat acting surfaces, each of said plural-layer laminates comprising a plurality of heat resistive layers, and each of said heat resistive layers being a layer of one of said laminates and being disposed one atop another;
- and
- a plurality of electrodes separately connected to each of said heat resistive layers of each said plural-layer laminate so as to enable each of said heat resistive layers to be heated individually, wherein
- each of said heat resistive layer generates thermal energy to discharge ink through said discharge ports.
A substrate for an ink jet head, comprising:
- a support member;
- a plurality of separate plural-layer laminates each presenting separate heat acting surfaces, each of said plural-layer laminates comprising a plurality of heat resistive layers provided on said support member, and each of said heat resistive layers being a layer of one of said laminates and being disposed one atop another;
- and
- a plurality of electrodes separately connected to each of said heat resistive layers of each said plural-layer laminate so as to enable each of said heat resistive layers to be heated individually, wherein
- each of said heat resistive layer generates thermal energy for discharging ink.
An ink jet apparatus comprising:
- an ink jet head comprising an ink discharge port for discharging ink therethrough;
- an ink path communicating with said discharge port;
- a plurality of separate plural-layer laminates each presenting separate heat acting surfaces, each of said plural-layer laminates comprising a plurality of heat resistive layers, each of said heat resistive layers being a layer of one of said laminates and being disposed one atop another;
- a plurality of electrodes separately connected to each of said heat resistive layers of each said plural-layer laminate so as to enable each of said heat resistive layers to be heated individually, wherein each of said heat resistive layer generates thermal energy to discharge ink through said discharge port;
- and
- supply means for supplying an ink discharge signal to said ink jet head.
Dependencies are inferred from the claim text.