Patent · US Expired

Toner fixing method and apparatus and image bearing receiving sheet

US5089363A · kind A · utility

33Cited by
18References
18Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 11, 1989
Grant dateFeb 18, 1992
Priority date
Expiry dateSep 11, 2009

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T428/31964
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A dry toner image is embedded in a thermoplastic layer on a receiving sheet by pressing a ferrotyping web against the image in the presence of sufficient heat to soften the layer. Preferably, the layer is preheated and the web and image are pressed together by a pair of hard rollers to a pressure in excess of 100 pounds per square inch. A curl preventing layer opposite thermoplastic layer does not offset on a backing roller because it has a melting point above the temperature of the process.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.