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:
Feb. 27, 1990
Filed:
Nov. 02, 1988
Takaho Koshiishi, Tokyo, JP;
Shiro Uchida, Isehara, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A compact, handy type facsimile machine includes a light source for illuminating an original, a line image sensor for optically reading the original, a condensation sensor for detecting formation of water droplets by condensation on the image sensor, and a control circuit for activating the light source when the condensation sensor has detected the formation of water droplets by condensation on the image sensor. Thus, upon occurrence of condensation, the condensation sensor generates a detection signal, and, in response thereto, the light source is lit to produce heat which then causes the water droplets formed on the image sensor to disappear. Upon disappearance of such water droplets, the control circuit deactivates the light source if there is no original to be read.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile