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.

Date of Patent:
Dec. 14, 1999

Filed:

Feb. 25, 1998
Applicant:
Inventor:

Yoshihiro Takashimizu, Kawasaki, JP;

Assignee:

Fujitsu Limited, Kawasaki, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
399 52 ; 358516 ; 399374 ;
Abstract

An image reading apparatus including a backing member arranged on the original transport path, a light source for emitting the light toward the original reading position in the original transport path in the direction of a predetermined incident optical axis, a detector capable of detecting the light reflected at the original reading position in the direction of a predetermined reading optical axis, and an image processing apparatus. The reflection surface of the backing member is configured in such a manner that the amount of the light reflected by the backing member and detected by the detector is not less than the amount of the light corresponding to a white reference value and that the amount of the light passing through the original, reflected by the backing member, re-passing through the original and detected by the detector, is not more than the amount of the light capable of preventing the imaging from the reverse side.


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