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. 30, 2003
Filed:
Mar. 10, 1999
Minoru Masuda, Ishikawa, JP;
Masashi Matsumoto, Ishikawa, JP;
Tomohiro Sunasaki, Ishikawa, JP;
Yasunori Miyauchi, Ishikawa, JP;
PFU Limited, Ishikawa, JP;
Abstract
An image reader is composed of a read unit provided with a contact member which abuts an original bed of a flat bed unit ; and a pressing element for causing the read unit and the original bed to press against each other. Also, the image reader is composed of an apparatus body including a read unit and an original bed ; and an original cover including a light source and a diffusion plate and attached to the apparatus body in such a manner as to be freely opened and closed. The distance between a translucent original placed on the original bed and the light source is variable according to the thickness of the translucent original . Further, in the image reader, a cumulative difference between the movement of the optical unit and the movement of a light source unit is previously read; and, at the time of start of scanning for read, the relative position of the optical unit and the light source unit is shifted in reverse in relation to the direction of the cumulative difference.