Patent · US Expired

Image forming apparatus and image processing method used for the same

US6992796B1 · kind B1 · utility

4Cited by
13References
12Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 1, 2000
Grant dateJan 31, 2006
Priority date
Expiry dateApr 19, 2023

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04N1/6033
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

When an image forming means forms a reading gradation pattern chart, gradation patterns are formed so as to prevent an intensified electric field caused by a potential difference at a boundary of an electrostatic latent image on the gradation patterns, which are adjacent to each other in a sub-scanning direction of an image forming section. With this arrangement, an image forming apparatus for suitably correcting the gradation pattern can adjust image forming conditions in a positive and appropriate manner.

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