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:
Aug. 23, 1988
Filed:
Sep. 02, 1987
Applicant:
Inventors:
Hajime Yamamoto, Ibaraki, JP;
Yuji Takashima, Nishinomiya, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Kadoma, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355-4 ; 355 / ; 355 / ; 355 / ; 355 77 ; 430120 ;
Abstract
In a color electrophotographic process wherein color toners are developed by toner flying under D.C. electric field, electrostatic capacitance of photoconductor (29, 30, 46, 65) is selected under 170 pF/cm.sup.2, so that undesirable discharging through the toner layer is prevented, and color contamination due to the discharging is prevented thereby providing clear color image printing.