Patent ID: 8485636

Claim:
A maintenance method for a liquid jetting apparatus provided with a jetting head which has a nozzle surface formed with nozzle holes and which jets a liquid from the nozzle holes, and a cap which covers the nozzle surface, the maintenance method comprising: discharging the liquid in the jetting head from the nozzle holes into the cap in a state that the nozzle surface of the jetting head is covered with the cap; and sucking the liquid discharged into the cap via a discharge hole provided at a bottom portion of the cap in a state that the cap is separated from the jetting head so that the liquid, which is discharged into the cap, is sucked in a first suction mode, and then sucked in a second suction mode in which a suction amount for sucking the liquid in the cap per a predetermined period of time is different from that in the first suction mode.