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. 16, 1988
Filed:
Oct. 24, 1985
Applicant:
Inventor:
Yutaka Kodama, Tokyo, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65H / ;
U.S. Cl.
CPC ...
271157 ; 271-9 ; 271126 ; 271127 ;
Abstract
A sheet feed device for use with a sheet feed tray of the type having a movable bottom plate and a tray cover holds the bottom plate in a raised, sheet feed position whenever the tray cover is closed, and in a lowered, sheet supply position whenever it is open. A reversible motor is drivably connected by gears or a sprocket and chain device to an arm which is adapted to raise and lower the bottom plate. The motor is controlled responsive to an output of a tray cover position sensor which senses an open position and a closed position of the tray cover.