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:
Jan. 20, 2004
Filed:
Mar. 22, 2002
Masahiro Someno, Nagano, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
In conventional ink jet printers there has been a problem such that with a decrease in residual quantity of ink, the density of the ink becomes lower and so does the print density. In a color conversion processing which a color conversion module executes in a printing data generating process executed by a printer driver an amount of ink used is acquired with respect to ink contained in each of ink cartridges and and the degree of variations in ink density is acquired on the basis of the amount of ink used. Then, on the basis of the degree of variations in ink density, a correction coefficient table TBL is retrieved to acquire a correction coefficient associated with print density.