To solve the problem that nonejection and curved ejection are caused because deposit on a nozzle surface and inside a nozzle cannot be perfectly removed by a cleaning device using a brush.

In this cleaning device for removing the deposit by bringing the brush 55 into contact with the nozzle surface Na of a head 14, the brush 55 is composed of a material which is selected from synthetic fibers, natural fibers, carbon fibers, glass fibers, a rubber, a metal and a synthetic resin, and the deposit, which is thickened and flocculated on the nozzle surface and inside the nozzle, can be effectively removed by means of the brush 55 which is composed of a specific material.