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:
Nov. 24, 2020
Filed:
Sep. 25, 2019
Seiko Epson Corporation, Tokyo, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
An image reading apparatus includes a reading section that receives light input via a transparent member to perform reading, a background section configured to switch a background facing the transparent member either to a first background that is a background of a first color or to a second background that is a background of a second color brighter than the first color, and a control section. The control section compares, with a threshold set in advance, first read data generated by causing the reading section to perform reading of the first background, compares, with the threshold, second read data generated by causing the reading section to perform reading of the second background, and, when the first read data is above the threshold or when the second read data is below the threshold, determines that dirt is present on the transparent member.