Patent ID: 9669629
Date: 2017-06-06
CPC Classifications: B41J

Claim:
1. An ink-jet head, comprising: a substrate; a piezoelectric body configured to have a plurality of parallel partition walls at the same pitch interval in the nozzle arrangement direction on the substrate and be plurally arranged in a direction orthogonal to the nozzle arrangement direction; a frame body configured to be arranged on the substrate at the outside of the piezoelectric body; and a nozzle plate configured to have a plurality of discharge openings which is formed by shifting by a half pitch in the nozzle arrangement direction in each row of pressure chambers formed with plural rows by the frame body and a plurality of the partition walls and is respectively formed in the orthogonal direction at a pitch identical to the pitch in each the pressure chamber; and a common liquid chamber configured to be arranged by internal surfaces of the frame body, principal surfaces of the substrate and rear surfaces of the nozzle plate; wherein the common liquid chamber is communicated with a plurality of first holes for supplying ink, with a plurality of second holes for discharging ink.