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:
Oct. 01, 2002
Filed:
Dec. 02, 1997
Applicant:
Inventors:
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J 2/9393 ;
U.S. Cl.
CPC ...
B41J 2/9393 ;
Abstract
An image is printed in an image print area on a recording medium by using a first printing material. Information is printed on an image preservation determination portion in a border portion as an area other than the image print area by using a second printing material which deteriorates faster than the first printing material. This portion is stored as density data, color appearance data, or the like in the apparatus to be used as a criterion for determination of deterioration when the image is to be reused.