Patent ID: 8578849
Filing Date: 2013-11-12
Classification: B41C,B41F

Abstract:
1. A liquid supply apparatus comprising a rotary screen apparatus that comprises: a cylindrical plate rotatably supported so as to be brought into contact with a rotatable impression cylinder, the cylindrical plate defining multiple openings, located at positions corresponding to a pattern, therein, some of the multiple openings being filled with a coating material to prevent a liquid stored inside the cylindrical plate from passing through the opening, and some of the multiple openings forming holes that allow the liquid to pass therethrough, such that the liquid is supplied to a sheet held on an outer circumferential surface of the impression cylinder, thus forming a shape corresponding to the pattern; and a liquid supply member placed inside the plate so as to be brought into contact with an inner circumferential surface of the plate, the liquid supply member supplying the liquid stored inside the plate to the outside of the plate through the holes, wherein the multiple openings are formed only in an area of the plate in a circumferential direction thereof, the area being located at an upstream side, in a direction in which the sheet is conveyed, of a first position and at a same time being located at a downstream side, in the direction in which the sheet is conveyed, of a second position, the first position corresponding to a first end of the sheet located on the downstream side in the direction in which the sheet is conveyed while the second position corresponding to a second end of the sheet located on the upstream side in the direction in which the sheet is conveyed, wherein the openings are formed in the plate at a portion covering an area of the sheet that is conveyed by the impression cylinder, and no openings are formed in the plate at a portion located outside of the area of the sheet that is conveyed by the impression cylinder.