The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 7945178 B1

PDF
Full Text
Expired
Date of Patent:
May. 17, 2011

Filed:

Nov. 01, 2007
Applicant:

Yuichiro Toyohara, Fujisawa, JP;

Inventor:

Yuichiro Toyohara, Fujisawa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

An image forming apparatus is provided that forms an image using developers of different tone and the same hue. When forming images for measurement for density control, the apparatus performs density control by forming a greater number of density levels of an image for measurement developed using a light developer than the number of density levels of an image for measurement developed using a dark developer. Thus, even if the amount of applied light developer may fluctuate, the fluctuation can be compensated to prevent the occurrence of pseudo-contours that lower image quality.


Find Patent Forward Citations

Toyohara, Yuichiro. (2011). Image forming apparatus including density control and control method thereof (U.S. Patent No. 7945178). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7945178

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