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. 24, 2001
Filed:
Jun. 20, 1996
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
A film carrier which, with a simple structure, can accurately check whether a reading head and a recording head are operating appropriately. Data for checking is determined in advance, and when a negative film begins to be withdrawn, direct current voltage is applied to the recording head. A leading end of the negative film is detected. Thereafter, the negative film is conveyed a fixed amount, the recording head records the data for checking, and the reading head reads recorded data. Next, read data and the data for checking are compared. When the read data and the data for checking do not match, it is determined that there is an abnormality in the recording head or the reading head, and error processing is carried out.