Invention Grant
US5960232A Method for controlling density in a printed image 失效
用于控制打印图像中的浓度的方法

  • Patent Title: Method for controlling density in a printed image
  • Patent Title (中): 用于控制打印图像中的浓度的方法
  • Application No.: US982715
    Application Date: 1997-12-02
  • Publication No.: US5960232A
    Publication Date: 1999-09-28
  • Inventor: Kuangti Ted Cheng
  • Applicant: Kuangti Ted Cheng
  • Applicant Address: OR Wilsonville
  • Assignee: Tektronix, Inc
  • Current Assignee: Tektronix, Inc
  • Current Assignee Address: OR Wilsonville
  • Main IPC: G03G15/08
  • IPC: G03G15/08
Method for controlling density in a printed image
Abstract:
An improved method for controlling the optical density of an image printed by an electrostatic printer is provided. The method compensates for optical density drift over the useful life of a toner receptacle by adjusting the voltage vector between the photoconductive belt and the toner particles. The method calculates an overall toner usage amount and adjusts the voltage vector when the amount reaches one or more predetermined values. In this manner, the present method controls the optical density of a printed image over the useful life of the toner receptacle.
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