Invention Grant
- Patent Title: Non-magnetic toner, image forming apparatus and process cartridge
- Patent Title (中): 非磁性调色剂,成像设备和处理盒
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Application No.: US11687352Application Date: 2007-03-16
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Publication No.: US07829254B2Publication Date: 2010-11-09
- Inventor: Katsunori Kurose , Chiyoshi Nozaki , Tsuyoshi Nozaki , Atsushi Yamamoto , Mitsuyo Matsumoto
- Applicant: Katsunori Kurose , Chiyoshi Nozaki , Tsuyoshi Nozaki , Atsushi Yamamoto , Mitsuyo Matsumoto
- 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: JP2006-073399 20060316
- Main IPC: G03G9/00
- IPC: G03G9/00

Abstract:
The present invention aims at providing non-magnetic toner which is excellent in fixing property and charge property and capable of inhibiting occurrence of scumming, as well as an image forming apparatus and a process cartridge using the non-magnetic toner.A non-magnetic toner comprising: a toner base particle which comprises a binding resin, and a colorant; and external additives,wherein a surface of the toner base particle contains at least a resin having at least silanol group, and the external additives contain at least particles composed of silicon oxide.
Public/Granted literature
- US20070218388A1 NON-MAGNETIC TONER, IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE Public/Granted day:2007-09-20
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