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:
Sep. 11, 1990
Filed:
Oct. 27, 1988
Applicant:
Inventor:
Hirohisa Otsuka, Kawaguchi, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03G / ; G03G / ;
U.S. Cl.
CPC ...
355215 ; 250324 ; 355221 ;
Abstract
A device for cleaning a wire of a corona discharge type charger installed in an electrophotographic copier or similar image recording apparatus such as a charger for charging a photoconductive element, a transfer charger or a separation charger. The device includes a pair of cleaning pads which clean the wire by individually holding diametrically opposite portions of the periphery of the wire, i.e. a portion which faces the surface of the photoconductive element to be charged and a portion which is remote from the surface of the same element. The cleaning pads act on the wire only when the pads and the wire are moved in one predetermined direction relative to each other.