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:
Jul. 21, 1998
Filed:
Nov. 19, 1996
Mita Industrial Co., Ltd., Osaka, JP;
Abstract
According to the present invention, in the image forming apparatus in which so-called 'cleaningless' is realized, no problems such as traces of paper powder, gray or foggy stripes and the like occur in a formed image. The image forming apparatus is provided with a brush for scratching toner remaining on the surface of the photosensitive drum and recovering paper powder adhering on the surface thereof. When the length of the brush extending from the root thereof to the photosensitive drum is taken as a�mm!, the length of the toughening member, toughening the brush materials, projecting from the root of the brush materials is taken as c�mm!, and the length of the portion of the brush, cutting into the photosensitive drum, is taken as b�mm!, the relationship among a�mm!, b�mm! and c�mm! satisfies the conditions that 0.3.ltoreq.(c/(a+b)).ltoreq.0.95, 0.1 �mm!.ltoreq.b.ltoreq.1.5 �mm!, and (a+b)<2 �mm!.