Patent ID: 9120320
Filing Date: 2015-09-01
Classification: B41J

Abstract:
1. A liquid ejection head comprising: a plurality of nozzles to eject liquid drops; a plurality of individual liquid chambers communicating with the plurality of nozzles; a plurality of liquid inlet portions leading to the plurality of individual liquid chambers; a common liquid chamber to supply liquid to the plurality of individual liquid chambers; a plurality of filter portions disposed between the common liquid chamber and the liquid inlet portions, each of the plurality of filter portions including filter holes and filtering the liquid; and a plurality of reinforcement parts formed with the plurality of filter portions to partition the plurality of filter portions, each of the plurality of reinforcement parts including a part facing some of the filter holes of a corresponding one of the plurality of filter portions in a liquid flow direction, with a gap between the filter holes and the reinforcement part, and the plurality of reinforcement parts being disposed on a common liquid chamber side of the plurality of filter portions to have a multiple layer structure at intervals of a predetermined distance in a nozzle array direction of the plurality of nozzles.