Patent ID: 6151049
Filing Date: 2000-11-21
Classification: B41J

Abstract:
A liquid discharge head comprising:a plurality of first liquid flow paths each communicating with an associated discharge opening for discharging liquid;a plurality of second liquid flow paths corresponding respectively to said first liquid flow paths, each said second liquid flow path having a bubble-generating region in which bubbles are generated in the liquid by heating the liquid;a movable member located between said first liquid flow path and said bubble-generating region, having a free end on the side of said discharge opening, said free end moving toward said first liquid flow path by pressure exerted by bubbles generated in said bubble-generating region to direct the pressure toward said discharge opening; andwherein a first supply path for supplying the liquid to a first liquid chamber communicating in common with said plurality of first liquid flow paths communicates with said first liquid chamber through a plurality of first supply ports, and wherein a second supply path for supplying the liquid to a second liquid chamber commonly communicating with said second liquid flow paths communicates with the second liquid chamber through a plurality of second supply ports.