Patent · US Expired

Fixing device

US6144833A · kind A · utility

4Cited by
7References
14Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 27, 1999
Grant dateNov 7, 2000
Priority date
Expiry dateSep 27, 2019

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G15/2053
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A fixing device has first and second rollers respectively formed of a metallic cylindrical body provided with an elastic member. The rollers are abutted against each other so that the elastic members contact each other. The fixing device further has a heater for heating at least one of the rollers and a driver for rotating at least one of the rollers so that a transfer sheet passes through contact portion of the rollers. Roller hardness of the first roller is smaller than that of the second roller, and density of cross-link of the elastic member of the first roller is lower than that of the elastic member of the second roller.

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