Patent · US Expired

Image forming apparatus provided with mold releasing agent coating structure

US5732316A · kind A · utility

6Cited by
5References
34Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 27, 1994
Grant dateMar 24, 1998
Priority date
Expiry dateDec 27, 2014

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G2215/2093
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

An image forming apparatus includes a first developing device, accommodating a first kind of toner without an offset preventing agent, a second developing device accommodating a second kind of toner containing an offset preventing agent, and a roller fixing device having a supply portion for supplying an offset preventing agent. The image forming apparatus changes the amount of the offset preventing agent to be supplied to the fixing roller between the case of fixing a copy image formed with the first kind of toner and the case of fixing a copy image formed with the second kind of toner.

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