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:
Apr. 08, 1997
Filed:
Aug. 22, 1994
Applicant:
Inventor:
Eiji Ishikawa, Yokohama, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J / ;
U.S. Cl.
CPC ...
400708 ; 400 74 ;
Abstract
A recording apparatus having means for detecting a recordable area on a recording medium comprises the structures of measuring means capable of measuring the reflective luminous energy of a recording medium and of means for holding the recording medium, means for holding the data on the basis of the reflective luminous energy of the means for holding the recording medium and the data on the basis of the reflective luminous energy of the recording medium, which are measured by the measuring means, and means for setting by both of the data a threshold value utilized for determining the boundary between the recording medium and the means for holding the medium.