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:
Jan. 28, 1986
Filed:
Mar. 31, 1983
Applicant:
Inventor:
Shiroh Kondoh, Sagamihara, JP;
Assignee:
Ricoh Company, Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355 / ; 118657 ; 118652 ; 118261 ;
Abstract
A device for developing an electrostatic latent image formed on an imaging surface using electrically insulating and magnetically attractable toner particles includes a developing sleeve and a doctor blade for forming a film of toner particles on the sleeve. In one form, the doctor blade has an end surface which is inclined at an angle in the range 15.degree..+-.15.degree. with respect to the tangential plane defined at the point of contact where the tip end of the doctor blade meets with the sleeve surface, and this angle converges in the direction of the sleeve's direction of movement.