Patent · US Expired

Cooling system for use in an image forming machine

US5144366A · kind A · utility

15Cited by
4References
7Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 31, 1991
Grant dateSep 1, 1992
Priority date
Expiry dateOct 31, 2011

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G21/206
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A cooling system for an image forming machine which is provided with a single temperature sensor for detecting a temperature inside the image forming machine, an operating section for setting the number of sheets to be copied continuously, a judgment circuit for determining a voltage value applied to a cooling fan in accordance with the set number of sheets and the temperature detected by the temperature sensor, and a drive control circuit for controlling the voltage applied to the cooling fan in accordance with the voltage value determined by the judgment circuit and drive the cooling fan.

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