| abstract |
An ink jet head for jetting ink onto an ink carrier and an ink jet recording apparatus for forming an ink image onto an ink carrier. The ink jet head has a first plate having a plurality of first portions, each first portion having a bottom hollowed from a first surface of the first plate; and a second plate, provided separately from the first plate, having a plurality of second portions corresponding to the first portions, respectively, each second portion having a top which protrudes from a second surface of the second plate and has a piezoelectric material, the second surface being in contact with the first surface so that each top of a second portion confronts to a respective one of the first portions, a space between each top of a protruding portion and the respective one of the bottom of a hollow portion defined as an ink room. The ink jet recording apparatus further includes a driver connected with the second portions to apply an input signal. |