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:
Apr. 13, 1976
Filed:
Feb. 24, 1975
Lawrence J Fraser, Rochester, NY (US);
Delmer G Parker, Rochester, NY (US);
Joseph L Scaletta, Henrietta, NY (US);
Xerox Corporation, Stamford, CT (US);
Abstract
To realize the advantages which sometimes attach to the use of electrically conductive carrier particles, the electrodes within development systems and cleaning systems for electrostatographic processors, such as xerographic copiers and duplicators, are coated or otherwise held in intimate contact with a sufficiently thick layer of material having a resistivity which is selected to prevent carrier caused short circuit events from producing irreversible damage and to localize the effects of such events. As a general rule, a 1-25 mil thick layer of a material having a resistivity in the range of 10.sup.7 - 10.sup.9 ohm.sup.. cm is adequate for that purpose.