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:
Dec. 21, 1999
Filed:
Jan. 24, 1996
Hirokazu Takahashi, Yokohama, JP;
Tadashi Suzuki, Tokyo, JP;
Satoru Kutsuwada, Yokohama, JP;
Satoshi Kaneko, Kawasaki, JP;
Hidehiko Asai, Kawasaki, JP;
Masahiko Tominaga, Kawasaki, JP;
Noriaki Matsui, Yokohama, JP;
Hiroyuki Kimura, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image processing apparatus has an adjusting mode which enables determination of a magnification correction value. A predetermined image on a test chart placed on an original table or an image of a chart fixed outside the valid image area are read, and the proper correction value for compensating for any variation in the image magnitude within a scanning system is computed based on the results of reading the test chart image. Subsequently, a printing system is operated to print test chart data read from a memory and the image printed in accordance with the test chart data is read by the scanner system which has been corrected, the result of the reading being used in computing the magnification correction value for compensating for any magnification variation occurring in the printer system.