Patent · US Expired

Fixing device

US4147501A · kind A · utility

19Cited by
4References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 6, 1978
Grant dateApr 3, 1979
Priority date
Expiry dateMar 6, 1998

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G15/2064
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A fixing device comprises a pair of rollers for heating and pressing a copy medium carrying a toner image thereon, a control gear, a planet gear meshing with the control gear and revolvable about the control gear, means for revolving the planet gear, and means responsive to the revolutional movement of the planet gear to displace the pair of rollers between a first position in which they are in pressure contact with each other and a second position in which they are not in pressure contact with each other.

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