Liquid jetting apparatus

A liquid jetting apparatus comprising:

• a nozzle plate having a nozzle;
• and
• a channel unit having a surface facing the nozzle plate, the surface being joined with the nozzle plate,
• wherein the channel unit is formed with:
• a first pressure chamber;
• a second pressure chamber;
• and
• a link channel linking the first pressure chamber and the second pressure chamber,
• wherein the first pressure chamber, the second pressure chamber, and the link channel are open in the surface,
• wherein the first pressure chamber, the second pressure chamber, and the link channel are covered by the nozzle plate,
• wherein in the surface, the first pressure chamber, the link channel, and the second pressure chamber are linearly aligned in a direction which is parallel to the surface,
• wherein one end of the link channel in the direction is connected with the first pressure chamber and the other end of the link channel in the direction is connected with the second pressure chamber so that communication between the first pressure chamber and the second pressure chamber is linearly structured through the link channel,
• wherein the first pressure chamber and the second pressure chamber are in communication with each other in the direction parallel to the surface via the link channel, and
• wherein in the link channel, a communication portion in communication with the nozzle has a cross-sectional area perpendicular to the direction parallel to the surface, the cross-sectional area smaller than that of each of the first pressure chamber and the second pressure chamber.