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:
Sep. 10, 1985
Filed:
Sep. 18, 1984
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The invention provides a paper feed control device having paper feed rollers for feeding a paper sheet such as an original to a predetermined position, a first sensor for detecting the paper sheet, a second sensor for detecting leading and trailing ends of the paper sheet, a microcomputer for controlling the rollers in response to the outputs signals from the sensors, and a compensating circuit for compensating the level of the output signal from the second sensor which is maintained in a non-detecting state until the paper sheet completely passes through the second sensor. Therefore, even if punched holes for filing are formed on the paper sheet, the punched hole may not be detected as the trailing end of the paper sheet, resulting in proper feeding.