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:
Aug. 21, 1990
Filed:
May. 16, 1989
Applicant:
Inventors:
Manabu Matsumoto, Nara, JP;
Takahiro Fukunaga, Nara, JP;
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355200 ; 355 21 ; 355202 ;
Abstract
A copying machine comprising a handle on one side of the body of the copying machine, said handle being made usable when a paper feed tray is removed from said copying machine body; a paper feed tray sensor which is activated when said paper feed tray is mounted onto said copying machine body; a jam sensor; and a means for detecting the occurrence of a jam only when said jam sensor and said paper feed tray sensor are both activated, thereby preventing malfunctioning of a jam sensor and saving the user unnecessary trouble.