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:
Jul. 27, 1999
Filed:
Sep. 24, 1996
Applicant:
Inventor:
Kenji Endo, Fukushima, JP;
Assignee:
Tohoku Ricoh Co., Ltd., Miyagi, JP;
Primary Examiner:
Int. Cl.
CPC ...
B65H / ;
U.S. Cl.
CPC ...
271 1003 ; 271 1011 ; 271117 ; 271242 ; 27126504 ;
Abstract
A sheet feeding apparatus for image producing systems such a stencil duplicating machine, a printer, and a copying machine. The sheet feeding apparatus comprises a sheet feed roller, a sheet feeding pressure regulator, a pair of register rollers, a sheet feeding time detector, and a control unit. The control unit compares a sheet feeding time detected by the sheet feeding time detector with a predetermined reference sheet feeding time, and controls a sheet feeding pressure on the basis of a compared result during a sheet feeding operation.