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.:
Date of Patent:
Feb. 06, 2001
Filed:
Aug. 18, 1998
Koji Hayashi, Kanagawa, JP;
Takashi Bisaiji, Kanagawa, JP;
Katsuhisa Tsuji, Kanagawa, JP;
Kazumi Kuwata, Tokyo, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
When an ACC menu is called out on a liquid crystal screen of an operating section, the screen shown in FIG.,is displayed. When “Execution” of automatic color calibration for use of a copying function is selected, the screen in FIG.,is displayed. When it is desired to use the copying function, a gradation calibration table used when the copying function is changed with reference to the deference data. When Print Start key in FIG.,is selected, a plurality of density gradation patterns corresponding to colors of YMCK as well as to a plurality of image quality mode such as characters and pictures are formed on a transfer material. The density gradation patterns are previously stored and set in a ROM of an IPU. A write value for a pattern is changed according to a result of detection of the development characteristics.