发明公开
- 专利标题: Wire-dot print head driving apparatus
- 专利标题(中): Antriebfüreinen Drahtpunktdruckkopf。
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申请号: EP89311141.9申请日: 1989-10-27
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公开(公告)号: EP0366497A2公开(公告)日: 1990-05-02
- 发明人: Tanuma, Jiro c/o Oki Elec. Ind. Co., Ltd. , Sakaino, Hiroshi c/o Oki Elec. Ind. Co., Ltd. , Ishimizu, Hideaki c/o Oki Elec. Ind. Co., Ltd. , Komori, Chihiro c/o Oki Elec. Ind. Co., Ltd. , Kasai, Tadashi c/o Oki Elec. Ind. Co., Ltd.
- 申请人: Oki Electric Industry Co., Ltd.
- 申请人地址: 7-12, Toranomon 1-chome Minato-ku Tokyo JP
- 专利权人: Oki Electric Industry Co., Ltd.
- 当前专利权人: Oki Electric Industry Co., Ltd.
- 当前专利权人地址: 7-12, Toranomon 1-chome Minato-ku Tokyo JP
- 代理机构: Read, Matthew Charles
- 优先权: JP139931/88U 19881028; JP253840/89 19890929
- 主分类号: B41J2/30
- IPC分类号: B41J2/30
摘要:
In a driving apparatus for a wire-dot print head (1) having electromagnets (24) for driving print wires (12), each electromagnet comprising a core (21) and a coil (23), sensing coils (2) are provided in association with the respective electromagnets and provided to interlink the magnetic flux passing through the core (21) of the associated electromagnet (24), a magnetic flux detecting circuit (3) is connected to the sensing coils (2) for detecting the magnetic flux passing through the core, and a control (6) and drive (5) circuit is responsive to the detected magnetic flux for deciding the termination of the energization of the drive coil.
公开/授权文献
- EP0366497B1 Wire-dot print head driving apparatus 公开/授权日:1994-04-13
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