作者: Hiroto Sugahara
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摘要: An ink cartridge is formed with an information-engraved section to have a predetermined shape. A cartridge-attachment section, which the attached, includes deformable stress light-emitting emits light depending on shape of by means received when makes contact and light-receiving sensor receives emitted generate recognition signal corresponding section. attachable member-recognition device provided, has relatively cheap simple structure, capable setting information about member including, for example, printing paper tray, recognizing information.