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:
Mar. 14, 2000
Filed:
Apr. 07, 1999
Shintaro Otani, Osaka, JP;
Toshimitsu Takakura, Osaka, JP;
Mita Industrial Co., Ltd., Osaka, JP;
Abstract
A document original simulator including first tone simulation portion having substantially the same reflectance as a white original sheet and a second tone simulation portion having a lower reflectance than the first tone simulation portion. When an image fogging detecting operation is to be performed with the use of the document original simulator, it is checked whether or not the amount of light reflected from the first tone simulation portion when the first tone simulation portion is illuminated with light is smaller than the amount of light reflected from the white original sheet placed on a document original presenting section when the white original sheet is illuminated with light. If the amount of the light reflected from the first tone simulation portion of the document original simulator is smaller than the amount of the light reflected from the white original sheet, the image fogging detecting operation is performed with the use of the first tone simulation portion of the document original simulator. If not, the image fogging detecting operation is performed with the use of the second tone simulation portion of the document original simulator.