Patent ID: 9738071
Date: 2017-08-22
CPC Classifications: B41J

Claim:
1. A liquid discharge head comprising: a plurality of nozzles to discharge a liquid; a channel plate including a plurality of individual liquid chambers communicated with the plurality of nozzles; a diaphragm member constituting a wall of the plurality of individual liquid chambers; a supporting substrate disposed at a side opposite the channel plate, with the diaphragm member interposed between the supporting substrate and the channel plate; a common liquid chamber forming substrate disposed at a side opposite the diaphragm member, with the supporting substrate interposed between the common liquid chamber forming substrate and the diaphragm member; a common liquid chamber communicated with the plurality of individual liquid chambers; a groove formed in an in-plane direction of a bonded face of the supporting substrate bonded to the diaphragm member; and a fluid restrictor disposed between the common liquid chamber and the plurality of individual liquid chambers, the fluid restrictor formed between the groove of the supporting substrate and a bonded face of the diaphragm member bonded to the supporting substrate.