Patent ID: 8001921

Claim:
A liquid application device capable of applying liquid to different size media, comprising: a transfer unit configured to transfer a medium; a liquid application unit which is substantially sealed and includes an application member, having an axial direction, for applying liquid to the medium transferred by the transfer unit and a retention member for retaining the liquid in a liquid retention space which is formed by causing the retention member to abut on the application member, wherein the liquid application unit applies the liquid retained in the liquid retention space to the medium via the application member by rotating the application member; a storage unit configured to store the liquid; a supply channel for supplying the liquid in the storage unit to the liquid retention space; a collection channel for collecting the liquid in the liquid retention space into the storage unit; a supply port which is formed in the retention member and is connected to the supply channel; first and second collection ports which are formed in the retention member and are connected to the collection channel; and a pump for generating a flow of liquid in a liquid channel including the storage unit, the supplying channel, the liquid retention space, and the collection channel, wherein the pump is provided at the collection channel, and wherein the supply port and the collection ports are arranged along the axial direction of the application member, and wherein the transfer unit transfers a medium so that a center of the medium, in the axial direction of the application member, passes through a position that is closer to the supply port than the collection ports.