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.

Date of Patent:
Aug. 14, 2001

Filed:

Dec. 20, 1999
Applicant:
Inventors:

Toshiyuki Hamada, Osaka, JP;

Tetsuro Tomoe, Nara-ken, JP;

Tadahiro Kiyosumi, Tenri, JP;

Naoyuki Ishida, Shijyonawate, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 2/100 ;
U.S. Cl.
CPC ...
G03G 2/100 ;
Abstract

A transfer roller is spaced away from the outer surface of a photosensitive drum by a specified distance to prevent the abrasion and damage of the photosensitive drum by the contact of the transfer roller and the photosensitive drum. The transfer roller not in contact with the photosensitive drum can be formed to have a sufficient hardness without damaging the outer surface of the photosensitive drum. Further, since the transfer roller has a sufficient hardness, cleaning blades can be held in without damaging the transfer roller with a sufficiently large force without damaging the transfer roller, thereby securely scraping off toner and the line adhered to the transfer roller and preventing the rear surface of a transfer sheet from being smeared.


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