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:
Nov. 13, 1984
Filed:
Nov. 03, 1982
Applicant:
Inventors:
Assignee:
Konishiroku Photo Industry Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355 15 ; 355 / ; 430125 ; 118652 ; 15 / ;
Abstract
A magnetic brush cleaning device in which a magnetic attraction roller having a surface for attracting magnetic powder is disposed so as to face the surface of a toner image retaining member through a gap D, the height of a brushlike ear of the magnetic powder attracted to the magnetic attraction roller is restricted by ear restriction element faced to the surface of the magnetic attraction roller through a gap H and the brushlike ear of the magnetic powder thus restricted slides frictionally on the surface of the toner image retaining member so as to remove the toner on the surface of the image retaining member. The gap D and the gap H satisfy the following relation: