发明名称 TONER FOR IMAGE FORMING AND PROCESS CARTRIDGE FILLED WITH THE TONER
摘要 PROBLEM TO BE SOLVED: To provide a toner having excellent cleanability and low temperature fixability, hardly causing adhesion of a toner component on a carrier even after long repeated use and hardly degrading chargeability. SOLUTION: The toner includes a paraffin wax having a melting point of 60 to 90°C and a montmorillonite or a modified montmorillonite. In a DSC measurement of the toner, an endothermic quantity at an endothermic peak specified to the release agent is from 3.0 to 6.0 J/g. The toner shows the average circularity of not less than 0.94. When a cone rotor is made to enter the toner powder phase in a specified toner evaluation method, the torque is from 1.4 to 2.0 mNm. COPYRIGHT: (C)2009,JPO&INPIT
申请公布号 JP2008233427(A) 申请公布日期 2008.10.02
申请号 JP20070071584 申请日期 2007.03.19
申请人 RICOH CO LTD 发明人 SAWADA TOYOSHI;SUZUKI TOMOMI;NAGATOMO NOBUYASU;SESHIMO TAKUYA;KOJIMA TOMOYUKI
分类号 G03G9/087;G03G9/08 主分类号 G03G9/087
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