DROPLET DISCHARGE DEVICE AND MAINTENANCE METHOD

Abstract: a droplet discharge device includes a droplet discharge head, a supply unit, and a controller. the droplet discharge head discharges droplets of a coloring liquid. the supply unit supplies the coloring liquid to the droplet discharge head. the controller controls each unit. during at least a part of a maintenance period after a discharge period in which droplets of the coloring liquid are discharged from the droplet discharge head, the controller controls the supply unit to supply the coloring liquid having a viscosity lower than that of the coloring liquid in the discharge period to the droplet discharge head.

Inventor(s): Makoto TOGO, Daisuke HOZUMI

CPC Classification: B41J2/175 (characterised by ink handling {(cleaning by driving a fluid through the nozzles to the outside thereof ; for treating before, during or after printing or for uniform coating or laminating the copy material before or after printing )})

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