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Method and apparatus of transferring toner images made up of small dry particles

  • US 5,253,021 A
  • Filed: 02/28/1992
  • Issued: 10/12/1993
  • Est. Priority Date: 02/28/1992
  • Status: Expired due to Term
First Claim
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1. A method of forming a toner image made up of small toner particles, said method comprising:

  • forming a toner image on an image member, andtransferring said toner image to a transfer surface of a thermally and electrically conductive intermediate member by heating said transfer surface while pressure contacting said transfer surface with said toner image on said image member with pressure between the transfer surface and the image member of not more than 300 pounds per square inch in the presence of an electric field of a direction urging said toner image to transfer to said transfer surface, said transfer surface being heated to a temperature sufficient to sinter the toner particles at least where they touch the transfer surface and touch each other but insufficient to damage the image member or cause the toner to stick to the image member.

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