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. 17, 1996
Filed:
Feb. 10, 1995
Takuji Ehara, Wakayama, JP;
Noritsu Koki Co., Ltd., Wakayama, JP;
Abstract
A method of detecting a film with an optical detector in a photographic printer machine detects the presence of a film with the optical detector installed at a film detecting location where a light receiver receives an intensity of light from a light emitter. The method includes the steps of determining a setting of the film detector so that outputs of the light receiver are higher than a reference level prepared in a controller for judging the presence of the film and assigning the setting to the film detector so that the outputs of the light receiver have a sufficient margin as compared with the reference level. The initial setting for detecting the presence of a photographic film is thereby carried out without using any reference film.