Invention Grant
US07935469B2 Image forming method and toner for developing latent electrostatic image
有权
图像形成方法和用于显影静电潜像的调色剂
- Patent Title: Image forming method and toner for developing latent electrostatic image
- Patent Title (中): 图像形成方法和用于显影静电潜像的调色剂
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Application No.: US12048823Application Date: 2008-03-14
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Publication No.: US07935469B2Publication Date: 2011-05-03
- Inventor: Takahiro Honda , Hiroyuki Fushimi , Fumihiro Sasaki , Hisashi Nakajima , Yasuo Asahina
- Applicant: Takahiro Honda , Hiroyuki Fushimi , Fumihiro Sasaki , Hisashi Nakajima , Yasuo Asahina
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Ltd.
- Current Assignee: Ricoh Company, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2007-069389 20070316; JP2008-044148 20080226
- Main IPC: G03G9/087
- IPC: G03G9/087 ; G03G13/20
Abstract:
Disclosed is a developer containing toner and carrier, the toner containing as a binder resin a polyol resin having a plurality of OH groups in a molecule chain having an EX/OH ratio between epoxy groups (EX) and OH groups (OH) of 0.990 to 1.010. The rotational speed α, pitch β and conveyance path length γ of an stirring and conveying unit satisfies 1.0×106≦α×β×γ≦16.0×106. Toner base particles having an electrostatic property satisfies 1.5
Public/Granted literature
- US20080227003A1 IMAGE FORMING METHOD AND TONER FOR DEVELOPING LATENT ELECTROSTATIC IMAGE Public/Granted day:2008-09-18
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