Invention Grant
US6095629A Device for determining quantities of consumable products contained in reservoirs and a document printing device having several different reservoirs of pigmented products 失效
用于确定容纳在储存器中的消耗品的数量的装置和具有几个不同的着色产品储存器的文件打印装置

  • Patent Title: Device for determining quantities of consumable products contained in reservoirs and a document printing device having several different reservoirs of pigmented products
  • Patent Title (中): 用于确定容纳在储存器中的消耗品的数量的装置和具有几个不同的着色产品储存器的文件打印装置
  • Application No.: US104013
    Application Date: 1998-06-24
  • Publication No.: US6095629A
    Publication Date: 2000-08-01
  • Inventor: Marie-Helene FrogerPascal Coudray
  • Applicant: Marie-Helene FrogerPascal Coudray
  • Applicant Address: JPX Tokyo
  • Assignee: Canon Kabushiki Kaisha
  • Current Assignee: Canon Kabushiki Kaisha
  • Current Assignee Address: JPX Tokyo
  • Priority: FRX9708127 19970627
  • Main IPC: B41J2/175
  • IPC: B41J2/175 G01F23/26
Device for determining quantities of consumable products contained in
reservoirs and a document printing device having several different
reservoirs of pigmented products
Abstract:
Device for determining quantities of products contained in adjacent ones of plural reservoirs, by using a capacitive arrangement. According to the invention, two electrodes of the capacitive arrangement are disposed between two reservoirs and are in each case either sending electrodes to which a signal is applied, or receiving electrodes which transmit a signal. By virtue of this arrangement, it is possible to reduce parasitic coupling between different capacitors of the capacitive arrangement.
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