公开(公告)号：US09829819B2

公开(公告)日：2017-11-28

申请号：US14488969

申请日：2014-09-17

Applicant: FUJI XEROX CO., LTD.

Inventor： Hiroko Kobayashi

IPC: G03G13/20 ,  G03G9/09 ,  G03G9/08 ,  G03G9/087 ,  G03G9/097 ,  G03G21/18

CPC classification number: G03G9/092 ,  G03G9/0821 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/09 ,  G03G9/0906 ,  G03G9/091 ,  G03G9/0918 ,  G03G9/09708 ,  G03G21/18 ,  G03G2215/025 ,  G03G2215/0604

Abstract: A toner set for electrostatic image development includes a cyan toner, a magenta toner, and a yellow toner, wherein the Vicat softening temperatures of the toners are respectively in the range of from about 30° C. to about 60° C., and among the toners, the difference between the Vicat softening temperature of the toner having the highest Vicat softening temperature and the Vicat softening temperature of the toner having the lowest Vicat softening temperature is from about 1° C. to about 5° C.

公开(公告)号：US10824087B2

公开(公告)日：2020-11-03

申请号：US16518178

申请日：2019-07-22

Applicant: FUJI XEROX CO., LTD.

Inventor： Yasuhiko Kinuta ,  Shogo Tomari ,  Hiroko Kobayashi ,  Kosuke Narita

IPC: G03G15/02 ,  G03G21/18

Abstract: A charging member includes a conductive substrate, an elastic layer disposed on the conductive substrate, and a surface layer disposed on the elastic layer. Regarding the surface of the surface layer, in the axial direction, the ratio of the mean spacing of profile irregularities Sm to the ten-point mean roughness Rz and the reduced peak height Spk respectively satisfy 15≤Sm/Rz≤35 and Spk≤5 μm.

公开(公告)号：US10761449B1

公开(公告)日：2020-09-01

申请号：US16522792

申请日：2019-07-26

Applicant: FUJI XEROX CO., LTD.

Inventor： Kosuke Narita ,  Akihiro Nonaka ,  Hiroko Kobayashi ,  Yasuhiko Kinuta ,  Fuyuki Kano ,  Yuki Tagawa

IPC: G03G15/02

Abstract: A charging device includes: a charging member that charges an image holding member according to a contact charging method, and includes a conductive substrate and a surface layer provided on the conductive substrate; and a clean member that cleans the charging member while contacting the charging member, and includes a shaft and a foamed elastic layer provided on the shaft, wherein a ratio of a distance between irregularities in an axial direction of the surface layer in the charging member (Sm) to a width of a nodal section of a foam cell wall surface protruding from a surface of the foamed elastic layer in the clean member (W) satisfies 2.4≤Sm/W≤5.9.

公开(公告)号：US09785076B2

公开(公告)日：2017-10-10

申请号：US15081368

申请日：2016-03-25

Applicant: FUJI XEROX CO., LTD.

Inventor： Hiroko Kobayashi

IPC: G03G9/09 ,  G03G9/08 ,  G03G9/087 ,  G03G9/097 ,  G03G21/18

CPC classification number: G03G9/092 ,  G03G9/0821 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/09 ,  G03G9/0906 ,  G03G9/091 ,  G03G9/0918 ,  G03G9/09708 ,  G03G21/18 ,  G03G2215/025 ,  G03G2215/0604

Abstract: A toner set for electrostatic image development includes a cyan toner, a magenta toner, and a yellow toner, wherein the Vicat softening temperatures of the toners are respectively in the range of from about 30° C. to about 60° C., and among the toners, the difference between the Vicat softening temperature of the toner having the highest Vicat softening temperature and the Vicat softening temperature of the toner having the lowest Vicat softening temperature is from about 1° C. to about 5° C.