Patent ID: 7735953

Claim:
A liquid jetting apparatus comprising; a head member having a nozzle, a scanning mechanism that causes the head member to relatively move with respect to the medium, a liquid jetting unit that jets liquid from the nozzle, an out-of-jetting micro-vibrating-area setting unit that sets out-of-jetting micro-vibrating areas before and after a liquid-jetting area to which liquid is to be jetted from the nozzle while the head member is caused to relatively move by the scanning mechanism, a micro-vibrating unit that causes liquid in the nozzle to minutely vibrate, and an out-of-jetting micro-vibrating controlling unit that causes the micro-vibrating unit to operate in accordance with each of a plurality of modes when the head member is located in the out-of-jetting micro-vibrating areas, wherein: a capping mechanism that seals the nozzle is provided in a relative movable area of the head member, the plurality of modes includes an original micro-vibrating mode and a capping micro-vibrating mode, a frequency of the capping micro-vibrating mode is lower than a frequency of the original micro-vibrating mode, the out-of-jetting micro-vibrating controlling unit is adapted to cause the micro-vibrating unit to operate in accordance with the capping micro-vibrating mode during at least a part of time for which the capping mechanism seals the nozzle, and the out-of-jetting micro-vibrating controlling unit is adapted to repeat a controlling step of causing the micro-vibrating unit to operate for a first constant time and causing the micro-vibrating unit not to operate for a second constant time while the capping mechanism seals the nozzle.