Purge rear nul absorption manner and liquid emission device of liquid emission device

摘要

A maintenance method for a liquid jetting apparatus provided with a jetting head which has a nozzle surface formed with nozzle holes and which discharges a liquid from the nozzle holes and a cap which covers the nozzle surface includes 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; and the liquid, which is discharged into the cap and is sucked in first and second suction modes in which suction amounts per a predetermined period of time are different from each other.