Patent · US Expired

Image forming apparatus preventing excessive increase in temperature of fixing device

US6881927B2 · kind B2 · utility

56Cited by
24References
27Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 29, 2002
Grant dateApr 19, 2005
Priority date
Expiry dateMar 29, 2022

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G15/2039
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

An image forming apparatus including a fixing device that has a rotatable endless belt, a contacting member to contact the rotatable endless belt, a rotatable pressing member contacting the contacting member via the rotatable endless belt to form a nip region, a heating member to heat the rotatable endless belt, a detecting device to detect a temperature of the heating member, a controlling device to control a temperature of the heating member based on a detection result of the detecting device, and a determining device to determine that the sheet-like recording medium has passed through the fixing device. The controlling device controls such that the temperature of the heating member set for the fixing operation is decreased to a temperature set when the sheet-like recording medium has passed through the fixing device, immediately after a last sheet-like recording medium in a series of a job has passed through the fixing device.

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