Patent ID: 8657406

Claim:
A liquid jetting apparatus which jets a liquid onto a medium, comprising: a liquid jetting head having a nozzle formed therein through which the liquid is jetted; a driving unit which is configured to drive the liquid jetting head and to output energy to the liquid jetting head; an energy recovery mechanism which is configured to recover and supply a part of the energy supplied from the driving unit to the liquid jetting head; a mist removing unit to which the part of the energy recovered by the energy recovery mechanism is supplied so that the supplied energy is used to remove a mist generated under a condition that the liquid jetting head jets the liquid; and a cap member which is configured to be movable to: a capping position for covering a liquid jetting surface on which the nozzles of the liquid jetting head are open; and an uncapping position separated from the liquid jetting surface; wherein the energy includes driving energy which is output by the driving unit for driving the liquid jetting head; wherein the energy recovery mechanism is configured to supply the part of the driving energy recovered from the liquid jetting head to the mist removing unit; wherein the mist removing unit includes an electric charge accumulating mechanism including a pair of electrodes, of a first electrode member and a second electrode member, each of which is configured to be charged by the supplied energy so that electric charge having a polarity different from that of the mist is accumulated onto one of the pair of the electrodes; wherein the energy recovery mechanism is configured: to recover the part of the driving energy by incorporating a part of an electric current from the liquid jetting head; and to supply, to the electric charge accumulating mechanism, the recovered driving energy as an electric current; wherein the first electrode member is arranged at an outer circumferential portion of the liquid jetting surface of the liquid jetting head; wherein the second electrode member is provided on the cap member; and wherein the first electrode member or the second electrode member is connected to the energy recovery mechanism.