Maintenance device and inkjet recording apparatus

Abstract

A maintenance device maintains a head unit including a plurality of inkjet heads. The maintenance device includes a plurality of caps, a plurality of supply parts, one sub-tank, and a replenishment part. The caps are provided for the inkjet heads, and attached to nozzle surfaces of the inkjet heads. The supply parts are provided for the caps, store a humidifying medium, pass air through the humidifying medium to generate a humidified air, and supply the humidified air to the caps. The sub-tank stores the humidifying medium, is opened to atmosphere and communicates with all the supply parts. The replenishment part replenishes the humidifying medium to the sub-tank.

Dependencies are inferred from the claim text.