Abstract: The technique of the invention relieves the requirement of repeated positioning to a wireless communicable range in the process of data transmission to and from each of multiple cartridges by wireless communication. A carriage 210 with multiple ink cartridges 111 through 116 mounted thereon is stopped at a position P1, which is away a distance D0 from an antenna 233 and is conveyed from the position P1 at a preset velocity V. With the movement of the carriage 210, detection storage modules 121 through 126 mounted on the ink cartridges 111 through 116 sequentially approach to the antenna 233 and establish communication with a control circuit 222 of a printer via the antenna 233 of a receiver transmitter unit 230. This arrangement enables data transmission between the control circuit 222 and each of the detection storage modules 121 through 126 without repeatedly stopping the carriage 210.

Abstract: A first plate member constitutes a part of a main frame of a liquid ejection apparatus. A second plate member is extended from the first plate member such that a first part thereof opposes to a traveling path of a carriage which carries a plurality of liquid containers each provided with an IC chip and a receiving antenna. A transmission antenna is provided on an antenna board. The antenna board is mounted on the first part of the second plate member. The second plate member is formed with a first region which allows the transmission antenna to establish radio communication with the receiving antenna, and a second region which shields radio waves.

Abstract: The technique of the invention relieves the requirement of repeated positioning to a wireless communicable range in the process of data transmission to and from each of multiple cartridges by wireless communication.

Abstract: A first plate member constitutes a part of a main frame of a liquid ejection apparatus. A second plate member is extended from the first plate member such that a first part thereof opposes to a traveling path of a carriage which carries a plurality of liquid containers each provided with an IC chip and a receiving antenna. A transmission antenna is provided on an antenna board. The antenna board is mounted on the first part of the second plate member. The second plate member is formed with a first region which allows the transmission antenna to establish radio communication with the receiving antenna, and a second region which shields radio waves.

Abstract: A fishing reel drag wheel of the type rotatable upon the shaft of the reel handle to engage a clutch means and adjust the degree of frictional coupling provided by the clutch means between the shaft and the fishing reel spool. The drag wheel is formed of flat, relatively thin metal plate and is characterized by a plurality of spokes radiating from a central hub portion and terminating in enlarged tab portions. The spokes are twisted through approximately ninety degrees so that the flat faces of the tab portions, rather than their relatively narrow edges, are presented for manipulation by the fisherman.