Patent · US Expired

Method and device for correcting a position for writing an image

US5627649A · kind A · utility

24Cited by
5References
18Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 17, 1993
Grant dateMay 6, 1997
Priority date
Expiry dateJun 17, 2013

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04N2201/04786
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

In an image forming apparatus, a method of correcting a position for writing an image on a photoconductive element on the basis of a signal representative of a pattern formed on the element and detected, and a device therefor. A single photoconductive element is used to form a plurality of different colored images using a single rotating polygonal mirror and a plurality of light sources. The toner images can be sensed either while they are on the single photoconductive element or by sensing them through a transport belt.

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