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:
Jun. 30, 1998
Filed:
Nov. 08, 1996
Applicant:
Inventors:
Shingo Hirota, Kobe, JP;
Naotoshi Kawai, Aichi-ken, JP;
Assignee:
Minolta Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
399102 ; 399350 ;
Abstract
A cleaning device for removing residual toner on the image bearing member includes a cleaning blade contacting with the surface of the image bearing member and sealing members provided on both end portions of the image bearing member and confronting the cleaning edge of the cleaning blade with a gap. The gap meets the following condition when the average particle diameter per unit volume of the toner used is between 4 .mu.m and 15 .mu.m and the level of condensation is between 5% and 40%, if the width and length of the gap between the cleaning edge and the sealing member are W and L, respectively: