Patent ID: 8974018
Filing Date: 2015-03-10
Classification: B41J

Abstract:
1. A liquid discharge apparatus comprising: a transporting unit to transport a medium; a storage unit to store liquid; a head unit to discharge the liquid onto the medium; a plurality of supply flow paths to supply the liquid from the storage unit to the head unit; a plurality of bypass flow paths laid between the supply flow paths which are different from one another; and a controller configured to: perform a transport operation that causes the transporting unit to transport the medium; perform a liquid discharge operation that causes the head unit to discharge the liquid onto the medium to thereby form an image on the medium; and when the liquid is not being discharged onto the medium during the discharge operation, circulate the liquid within a closed-loop circulation flow path that is formed by the supply flow paths and the bypass flow paths only, such that when circulating in the closed-loop circulating flow path, the liquid substantially only circulates in the supply flow paths and the bypass flow paths.