Invention Grant
- Patent Title: Toner, image forming apparatus, image forming method, process cartridge, and developer
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Application No.: US14330109Application Date: 2014-07-14
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Publication No.: US09618864B2Publication Date: 2017-04-11
- Inventor: Hideki Sugiura , Yuka Mizoguchi , Mio Kumai
- Applicant: Hideki Sugiura , Yuka Mizoguchi , Mio Kumai
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Ltd.
- Current Assignee: Ricoh Company, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2013-185446 20130906; JP2014-071853 20140331
- Main IPC: G03G9/087
- IPC: G03G9/087 ; G03G9/08 ; G03G9/093

Abstract:
A toner comprised of mother toner particles each including a colorant, a resin A capable of forming a crystalline structure, and a resin B incapable of forming a crystalline structure is provided. The resin A is dispersed in the resin B in the state of phase separation. The long axis of each dispersed particle of the resin A has a length of from 30 to 200 nm and the length ratio of the long axis to the short axis is from 2 to 15. The DSC endothermic quantity attributable to the resin A is from 8 to 20 J/g.
Public/Granted literature
- US20150072277A1 TONER, IMAGE FORMING APPARATUS, IMAGE FORMING METHOD, PROCESS CARTRIDGE, AND DEVELOPER Public/Granted day:2015-03-12
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