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:
Sep. 21, 2004
Filed:
Apr. 26, 2000
Applicant:
Inventor:
Hitomi Hanyu, Kanagawa, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K 9/40 ; G06K 9/00 ;
U.S. Cl.
CPC ...
G06K 9/40 ; G06K 9/00 ;
Abstract
A printer with a tonality correction capability includes test pattern forming means for forming a particular test pattern for each tonality processing method. Image reading means reads the test pattern formed by the test pattern forming means. The test pattern read is compared with data representative of a target pattern to thereby execute tonality correction matching with a tonality processing method to be used. The printer obviates manual operation needing expertness and allows even the user of the printer to correct the variation of tonality ascribable to a difference in the type of a printer and aging.