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. 20, 2009
Filed:
Aug. 25, 2005
Nekka Matsuura, Kanagawa, JP;
Satoshi Muramatsu, Tokyo, JP;
Nobutaka Takeuchi, Kanagawa, JP;
Atsushi Shinozaki, Chiba, JP;
Nekka Matsuura, Kanagawa, JP;
Satoshi Muramatsu, Tokyo, JP;
Nobutaka Takeuchi, Kanagawa, JP;
Atsushi Shinozaki, Chiba, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An image formation apparatus and process cartridge exhibiting high durability, in which such disadvantages as irregular recovery of untransferred toner and the advance of carrier degradation are not produced even when jointly using a trickle development system and a cleanerless system, comprising an image support member on which a latent image is formed; a developing unit that houses developer having carrier and toner, develops the latent image formed on the image support member, and recovers untransferred toner remaining on the image support member; a carrier supply unit that supplies carrier to the developing unit; carrier discharge means that discharges carrier housed in the developing unit to outside of the developing unit; and lubricant supply means that supplies lubricant onto the image support member.