Invention Grant
US08455169B2 Toner, method for preparing the toner, and image forming method using the toner
有权
调色剂，调色剂的制备方法和使用调色剂的成像方法
- Patent Title: Toner, method for preparing the toner, and image forming method using the toner
- Patent Title (中): 调色剂，调色剂的制备方法和使用调色剂的成像方法
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Application No.: US12821546Application Date: 2010-06-23
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Publication No.: US08455169B2Publication Date: 2013-06-04
- Inventor: Daisuke Inoue , Fumihiro Sasaki , Osamu Uchinokura , Satoshi Kojima , Hideki Sugiura , Naoko Morisawa
- Applicant: Daisuke Inoue , Fumihiro Sasaki , Osamu Uchinokura , Satoshi Kojima , Hideki Sugiura , Naoko Morisawa
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Limited
- Current Assignee: Ricoh Company, Limited
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2009-157230 20090701
- Main IPC: G03G5/00
- IPC: G03G5/00
Abstract:
The toner includes a binder resin; a colorant; and a release agent. The first inter-particle force Fp(A) of the toner, which is measured under an environmental condition of 23° C. and 60% RH after the toner is pressed for 1 minute at 25° C. under a compression stress of 15 kg/cm2, is from 1.0×10−9 (N) to 1.0×10−6 (N). The difference (Fp(B)−Fp(A)) between the second inter-particle force Fp(B) of the toner, which is measured under the environmental condition of 23° C. and 60% RH after the toner is pressed for 1 minute at 50° C. under a compression stress of 15 kg/cm2, and the first inter-particle force Fp(A) is 0 (N) to 1.0×10−7 (N).
Public/Granted literature
- US20110003244A1 TONER, METHOD FOR PREPARING THE TONER, AND IMAGE FORMING METHOD USING THE TONER Public/Granted day:2011-01-06
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