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1.发明授权IMAGE FORMING METHOD AND IMAGE FORMING APPARATUS 有权BILDERZEUGUNGSVERFAHREN UND BILDERZEUGUNGSVORRICHTUNG
公开(公告)号：EP2872338B1
公开(公告)日：2017-03-15
申请号：EP13817634.2
申请日：2013-07-05
申请人： Ricoh Company, Ltd.
发明人： AOAI, Shosuke , MAEKAWA, Tsutomu , NAMBA, Michihiko , SENO, Shinya , GOTOU, Hiroshi , GOTOH, Akihiko
CPC分类号： B41M5/0017 , B41J11/0015 , B41M5/0023 , C09D11/322 , C09D11/54 , Y10T428/24901
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公开(公告)号：EP3425453A1
公开(公告)日：2019-01-09
申请号：EP17759593.1
申请日：2017-02-09
申请人： Ricoh Company, Ltd.
IPC分类号： G03G9/08
摘要： Provided is a toner including toner base particles and an external additive, wherein each of the toner base particles includes a binder resin, a release agent, and silica, an average abundance ratio (X surf ) of the silica on a region adjacent to a surface of the toner base particle is from 70% through 90%, and a projected area average value S(180) per particle of the toner when the toner is heated to 180°C and a projected area average value S(30) per particle of the toner when the toner is 30°C satisfy Formula (1) below, 1.4 ≤ S 180 / S 30 ≤ 1.7
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公开(公告)号：EP2872338A1
公开(公告)日：2015-05-20
申请号：EP13817634.2
申请日：2013-07-05
申请人： Ricoh Company, Ltd.
发明人： AOAI, Shosuke , MAEKAWA, Tsutomu , NAMBA, Michihiko , SENO, Shinya , GOTOU, Hiroshi , GOTOH, Akihiko
CPC分类号： B41M5/0017 , B41J11/0015 , B41M5/0023 , C09D11/322 , C09D11/54 , Y10T428/24901
摘要： To provide an image forming method, including: a pre-treatment liquid application step for applying a pre-treatment liquid on a recording medium including a substrate and a coating layer at least on one surface of the substrate, wherein the pre-treatment liquid is applied on a surface of the recording layer with the coating layer! a drying step for drying the recording medium on which the pre-treatment liquid has been applied; and an image forming step for forming an image on the recording medium after drying by discharging a water-based ink by inkjet method, wherein the pre-treatment liquid includes a water-soluble cationic polymer, an ammonium salt of an organic acid and water, and wherein the water-based ink includes water and negatively charged colored particles including a colorant.
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