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Transfer medium separating device

  • US 4,412,732 A
  • Filed: 07/17/1981
  • Issued: 11/01/1983
  • Est. Priority Date: 07/21/1980
  • Status: Expired due to Fees
First Claim
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1. A transfer medium separating device for separating a transfer medium from a first carrier means, bearing thereon a toner image, to which said transfer medium has been brought into contact to transfer the toner image onto said transfer medium from said first carrier means, comprising:

  • second carrier means of an electrically conductive material to which said transfer medium having thereon said toner image is to be gradually brought into contact due to electrostatic forces from its leading edge as separated from said first carrier means;

    potential application means for selectively applying at least a first level potential and a second level potential which is different from said first level potential to said second carrier means;

    timing control means for controlling the timing of changing from said first level potential to said second level potential to be applied to said second carrier means such that said second carrier means is kept at said first level potential until the leading edge of said transfer medium has reached a predetermined reference point along its traveling path with respect to said second carrier means; and

    timing adjusting means connected to said timing control means for adjusting the timing of changing potentials by said timing control means and thus adjusting the location of said reference point in response to conditions of the separating operation.

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