发明名称 IMAGE FORMING TONER AND FIXING METHOD
摘要 PROBLEM TO BE SOLVED: To provide a toner having excellent low-temperature fixability and no problem on anti-offset properties and storage stability, free of surface stain and toner scattering even in long-term use, and capable of obtaining a good image, and to providing a low-temperature fixing method using the toner. SOLUTION: In the toner containing at least a binder resin and a metallic material, the binder resin contains a crystalline polyester resin and an amorphous resin, and the metallic material is a black metallic material having a saturation magnetization of≤50 emu/g. Preferably, L<SP>*</SP>, a<SP>*</SP>and b<SP>*</SP>values of the metallic material are≤15, -1.0 to +1.0 and -1.0 to +1.0, respectively. The metallic material is preferably an iron oxide-containing material containing 10-45 wt.% of titanium based on the amount of iron atoms and having a specific surface area of 1.5-30 m<SP>2</SP>/g and a true specific gravity of 4.0-5.0 g/cm<SP>3</SP>. COPYRIGHT: (C)2004,JPO&NCIPI
申请公布号 JP2004245887(A) 申请公布日期 2004.09.02
申请号 JP20030032687 申请日期 2003.02.10
申请人 RICOH CO LTD 发明人 SHIRAISHI KEIKO;SAWADA TOYOSHI;NAGAYAMA MASASHI;KURAMOTO SHINICHI;AOKI MITSUO;HASEGAWA HISAMI;SHU HIYO
分类号 G03G9/08;G03G9/083;G03G9/087;G03G9/09;G03G15/20;(IPC1-7):G03G9/09 主分类号 G03G9/08
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