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    TONER, IMAGE FORMING APPARATUS, AND TONER STORED UNIT
    3.
    发明公开
    TONER, IMAGE FORMING APPARATUS, AND TONER STORED UNIT 审中-公开

    公开(公告)号：EP3286607A1

    公开(公告)日：2018-02-28

    申请号：EP16782758

    申请日：2016-03-24

    申请人： RICOH CO LTD

    发明人： YAMAUCHI YOSHITAKA ,  SUZUKI KAZUMI ,  NAKAJIMA HISASHI ,  YAMADA SAORI ,  NAITO YU ,  KANEKO AKIHIRO

    IPC分类号： G03G9/087

    CPC分类号： G03G9/08795 ,  G03G9/0821 ,  G03G9/0825 ,  G03G9/08797

    摘要： PROBLEM TO BE SOLVED: To provide toner excellent in low-temperature fixability, heat-resistant storage property, and stress proofness.SOLUTION: Toner is characterized in that in an X-ray diffraction measurement, a diffraction peak exists at a position of at least 2θ=20° to 25°, and each difference among respective glass transition temperatures to be observed after subjected to heating and cooling under a following temperature rise/fall condition 1 and temperature rise/fall condition 2 using a DSC falls within 10°C. The temperature rise/fall condition 1: Let a start temperature be 20°C, the temperature rises up to 120°C at 10°C/min, is kept at 120°C for 10 minutes, falls down to 0°C at 10°C/min, and rises up to 150°C at 10°C/min without holding time at 0°C. The temperature rise/fall condition 2: Let a start temperature be 20°C, the temperature rises up to 120°C at 10°C/min, is kept at 120°C for 10 minutes, falls down to 0°C at 10°C/min, rises up to 45°C at 10°C/min without holding time at 0°C, and is kept for 24 hours, again falls down to 0°C at 10°C/min, and rises up to 150°C at 10°C/min without holding time at 0°C.SELECTED DRAWING: None

    TONER, IMAGE FORMING APPARATUS, AND TONER STORED UNIT
    6.
    发明公开
    TONER, IMAGE FORMING APPARATUS, AND TONER STORED UNIT 审中-公开

    公开(公告)号：EP3286607A4

    公开(公告)日：2018-04-11

    申请号：EP16782758

    申请日：2016-03-24

    申请人： RICOH CO LTD

    发明人： YAMAUCHI YOSHITAKA ,  SUZUKI KAZUMI ,  NAKAJIMA HISASHI ,  YAMADA SAORI ,  NAITO YU ,  KANEKO AKIHIRO

    IPC分类号： G03G9/087

    CPC分类号： G03G9/08795 ,  G03G9/08711 ,  G03G9/08755 ,  G03G9/08797

    摘要： PROBLEM TO BE SOLVED: To provide toner excellent in low-temperature fixability, heat-resistant storage property, and stress proofness.SOLUTION: Toner is characterized in that in an X-ray diffraction measurement, a diffraction peak exists at a position of at least 2θ=20° to 25°, and each difference among respective glass transition temperatures to be observed after subjected to heating and cooling under a following temperature rise/fall condition 1 and temperature rise/fall condition 2 using a DSC falls within 10°C. The temperature rise/fall condition 1: Let a start temperature be 20°C, the temperature rises up to 120°C at 10°C/min, is kept at 120°C for 10 minutes, falls down to 0°C at 10°C/min, and rises up to 150°C at 10°C/min without holding time at 0°C. The temperature rise/fall condition 2: Let a start temperature be 20°C, the temperature rises up to 120°C at 10°C/min, is kept at 120°C for 10 minutes, falls down to 0°C at 10°C/min, rises up to 45°C at 10°C/min without holding time at 0°C, and is kept for 24 hours, again falls down to 0°C at 10°C/min, and rises up to 150°C at 10°C/min without holding time at 0°C.SELECTED DRAWING: None