Patent ID: 8070279
Filing Date: 2011-12-06
Classification: B41J

Abstract:
1. A liquid ejection head comprising: a plurality of nozzles configured to eject liquid droplets; a plurality of pressurizing liquid chambers in fluid communication respectively with the nozzles; a liquid supply portion comprising a plurality of individual supply channels in fluid communication respectively with the pressurizing liquid chambers to supply a liquid to the pressurizing liquid chambers, and a fluid-communicating portion configured to keep the plurality of individual supply channels in fluid communication with one another; a filter portion positioned to face the individual supply channels of the liquid supply portion and configured to filter the liquid supplied to the pressurizing liquid chambers; and a flow channel member in which the pressurizing liquid chambers and the liquid supply portion are formed, the flow channel member comprising: wherein the portions of the through grooves, which serve as the individual supply channels, are open to a bottom of the recess and are positioned to face the filter portion.