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:
Jun. 18, 1991
Filed:
May. 07, 1990
Hisashi Shoji, Hachioji, JP;
Akihiko Tamura, Hachioji, JP;
Masahiko Itaya, Hachioji, JP;
Hiroshi Fuma, Hachioji, JP;
Shinobu Soma, Hachioji, JP;
Konica Corporation, Tokyo, JP;
Abstract
A method of forming a multicolor toner image on an electrostatic latent image carrying member wherein developer containing a carrier and toner is transported to a developing region on a cylindrically shaped outer sleeve member of a developer transporting unit. Inside the sleeve there is provided at least one pair of magnets, the magnetic poles of which face the inner surface of the sleeve and are so arranged as to be rotatable, relative to each other, around the center axis of the sleeve. The amount of transported toner is regulated so that the amount of toner on the sleeve [mt], in mg/cm.sup.2, the peripheral speed of the image surface [V.sub.d ] and the peripheral speed of the sleeve member [V.sub.sl ] satisfy the following formulas: