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. 17, 1996
Filed:
Aug. 15, 1995
Applicant:
Inventors:
Assignee:
Fuji Xerox Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G / ; G03G / ; G03G / ;
U.S. Cl.
CPC ...
3553 / ; 118645 ; 355200 ; 355208 ; 355245 ;
Abstract
A drive device for a rotary developing unit of the type in which a plural number of developing subunits are mounted on a rotary body, and a drive means is provided outside the rotary body, and in operation the developing subunits are successively moved to their developing positions when the rotary body is turned, and the developing subunit is driven by the drive means at its developing position, is improved in that the drive means drives the developing subunit for a specific period of time from a time point just before the developing subunit is moved to a predetermined developing position and stops thereat to another time point immediately after the developing subunit leaves the developing position.