Patent · US Expired

Image forming apparatus with means for correcting image density unevenness

US5444468A · kind A · utility

127Cited by
21References
42Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 27, 1991
Grant dateAug 22, 1995
Priority date
Expiry dateNov 27, 2011

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB41J2/515
  • WIPO fieldTextile and paper machines
  • WIPO sectorMechanical engineering

Abstract

An image forming apparatus such as a laser beam printer or an ink-jet recording apparatus has a recording head which records an image on a recording medium in the direction of main scan in accordance with image signals. The recoding medium is moved relative to the recording head in a sub-scan direction substantially perpendicular to the direction of the main scan. A controller controls conditions of recording performed by the recording head so as to effect a correction of recording density unevenness cause by a variation of the relative speed of movements of parts of the apparatus.

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