Patent · US Expired

Pressure developing device

US4945374A · kind A · utility

8Cited by
5References
10Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 28, 1989
Grant dateJul 31, 1990
Priority date
Expiry dateApr 28, 2009

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03B2227/325
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

In a pressure developing device employed in an imaging device like a duplicating machine, an optical printer etc, pressure force for pressurizing a recording medium is capable of being varied in accordance with the width of the recording medium to be pressurized. A sensor for detecting the width of the recording medium is provided, and the pressure force is varied based upon the detected value.

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