Patent ID: 8721065
Filing Date: 2014-05-13
Classification: B41J

Abstract:
1. An ink jet printer comprising: a conveyor belt unit including a rotating conveyor belt which serves to form a transfer path of a print sheet with a predetermined size; a feed unit configured to warp the print sheet in a transfer direction in a manner that spaces the print sheet from the transfer path and feed the print sheet onto the transfer path in a manner that releases the warp of the print sheet; and first and second ink jet heads disposed along the transfer path in succession and configured to perform ink ejection on the print sheet passing through the transfer path, wherein the second ink jet head is configured to eject an ink which is darker in color than that of the first ink jet head, wherein the first ink jet head is located at a first position adjacent to the feed unit and the second ink jet head is located at a second position adjacent to the first ink jet head in the transfer direction, wherein the first position is a position having a distance less than the size of the print sheet from a position of the feed unit in the transfer direction, wherein the second position is a position having a distance more than the size of the print sheet from a position of the feed unit in the transfer direction, and wherein the predetermined size includes one of A4 size, A3 size, B4 size, B5 size, Statement size, Half Letter size, Executive size, Letter size and Legal size.