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:
Dec. 18, 1990
Filed:
Aug. 18, 1988
Applicant:
Inventors:
Akira Kosugi, Hachioji, JP;
Kouichi Hanada, Hachioji, JP;
Assignee:
Konica Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65H / ; G03G / ;
U.S. Cl.
CPC ...
271-31 ; 271110 ; 271117 ; 271227 ; 355319 ;
Abstract
A sheet stacking mechanism for use in apparatuses wherein an image is recorded on both sides of a recording sheet, including a bumper roller which is capable of retractably shifting to a downward position to be in pressure contact with the recording sheets on an intermediate tray and transport the recording sheets to a stopper where the leading edges thereof are aligned and, a sensor and control device for controlling the position of the roller so that the roller is shifted downward onto the recording sheet to be aligned when the sheets reach the tray, and raised out of contact with the sheets when the leading edges reach the stopper.