公开(公告)号：US20180364622A1

公开(公告)日：2018-12-20

申请号：US15981909

申请日：2018-05-17

Applicant: FUJI XEROX CO.,LTD.

Inventor： Yoshiki SHIMODAIRA ,  Masaaki YAMAURA ,  Toshiaki BABA ,  Satoshi SHIGEZAKI

IPC: G03G15/16

CPC classification number: G03G15/165 ,  G03G15/1615 ,  G03G15/169

Abstract: A transfer device includes a holding body that holds a toner image and to which a first tension and a second tension, which is smaller than the first tension, are applied, a transfer body that transfers the toner image to a recording medium while transporting the recording medium between the transfer body and the holding body, and a setting portion that sets tension applied to the holding body to the second tension when a mass of a toner of an uppermost toner layer constituting the toner image and disposed on the holding body is equal to or exceeds a threshold.

公开(公告)号：US20180364629A1

公开(公告)日：2018-12-20

申请号：US15798407

申请日：2017-10-31

Applicant: FUJI XEROX CO.,LTD.

Inventor： Masaaki YAMAURA ,  Satoshi SHIGEZAKI ,  Yoshiki SHIMODAIRA ,  Toshiaki BABA

IPC: G03G15/16

CPC classification number: G03G15/5054 ,  G03G15/1615

Abstract: A transfer device includes a holding body that holds a toner image; a transfer body that presses a recording medium against the holding body with a first pressing force or a second pressing force, which is smaller than the first pressing force, to transfer the toner image to the recording medium while transporting the recording medium between the transfer body and the holding body; and a setting portion that sets a pressing force exerted on the recording medium at the second pressing force when a mass of a toner of an uppermost toner layer constituting the toner image and disposed on the holding body is equal to or exceeds a threshold.

公开(公告)号：US20160077467A1

公开(公告)日：2016-03-17

申请号：US14686025

申请日：2015-04-14

Applicant: FUJI XEROX CO., LTD.

Inventor： Masaaki TAKAHASHI ,  Yoshiki SHIMODAIRA

IPC: G03G15/16

CPC classification number: G03G15/5058 ,  G03G15/161 ,  G03G15/168 ,  G03G2215/1647 ,  G03G2215/1661

Abstract: An image forming apparatus includes first and second forming units that form first and second to-be-transferred images and first and second not-to-be-transferred images with first and second toners, respectively, the first toner containing a metal pigment; a transfer body to which the first and second to-be-transferred and not-to-be-transferred images are to be transferred; a transfer member that transfers the first and second to-be-transferred images to a recording medium at a transfer nip between the transfer member and the transfer body; and a removing member that removes, with an electrostatic force, the first and second toners forming the first and second not-to-be-transferred images from the transfer member. In a transfer mode, the first not-to-be-transferred image is transferred to a position that do not overlap the recording medium to be introduced into the transfer nip after the first not-to-be-transferred image when seen in a direction of introduction of the recording medium.

Abstract translation: 图像形成装置包括分别用第一和第二调色剂形成第一和第二待转印图像的第一和第二成形单元和第一和第二不转印图像，第一调色剂含有金属颜料; 要传送第一和第二待传送图像和不被转印图像的转印体; 转印构件，其在转印构件和转印体之间的转印辊隙处将第一和第二待转印图像转印到记录介质; 以及去除构件，其以静电力除去从所述转印构件形成所述第一和第二不被转印图像的所述第一和第二调色剂。 在传送模式中，当在方向上看时，第一不传输图像被转移到不与重叠记录介质重叠的位置，以便在第一不传输图像之后被引入到转印辊隙中 引入记录介质。

公开(公告)号：US20200026224A1

公开(公告)日：2020-01-23

申请号：US16294952

申请日：2019-03-07

Applicant: FUJI XEROX CO., LTD.

Inventor： Keitaro MORI ,  Takashi OCHI ,  Yoshiki SHIMODAIRA ,  Toshimasa TOYAMA ,  Masato YAMASHITA ,  Takashi OHASHI

IPC: G03G15/16

Abstract: A transport device includes a first belt member movably stretched, a second belt member, a first roller, a second roller, a third roller, a fourth roller, a fifth roller, and a sixth roller. The second belt member is in contact with the first belt member to form a contact portion in cooperation with the first belt member. The second belt member is movably stretched. The first roller stretches the first belt member and is capable of adjusting a tilt in a longitudinal direction of the first roller. The second roller stretches the second belt member and is capable of adjusting a tilt in a longitudinal direction of the second roller. The third roller stretches the first belt member and is located adjacent to the first roller and upstream of the first roller in a movement direction of the first belt member. The fourth roller stretches the first belt member and is located adjacent to the first roller and downstream of the first roller in the movement direction of the first belt member. The fifth roller stretches the second belt member and is located adjacent to the second roller and upstream of the second roller in a movement direction of the second belt member. The sixth roller stretches the second belt member and is located adjacent to the second roller and downstream of the second roller in the movement direction of the second belt member. The third roller, the fourth roller, the fifth roller, and the sixth roller each have a uniform diameter in a longitudinal direction of the roller, and are disposed at positions other than the contact portion.

公开(公告)号：US20170277057A1

公开(公告)日：2017-09-28

申请号：US15225878

申请日：2016-08-02

Applicant: FUJI XEROX CO., LTD.

Inventor： Masaaki YAMAURA ,  Satoshi SHIGEZAKI ,  Yoshiki SHIMODAIRA ,  Yoshiyuki TOMINAGA

IPC: G03G15/01

CPC classification number: G03G15/0131 ,  G03G15/0189 ,  G03G15/1605

Abstract: An image forming apparatus includes multiple first image forming units, a second image forming unit, and a controller. The first image forming units transfer toner images developed with colored toners to a transfer body, and form first images on the transfer body. The second image forming unit transfers a toner image developed with a spot color toner different from colors of the colored toners to the transfer body prior to the first image forming units, and forms a second image serving as an undercoat or an overcoat of the first images on the transfer body. The controller controls the first image forming units in order that amounts of the colored toners used for forming the first images by the first image forming units become less than amounts of the colored toners used when the first images are formed prior to the second image.

公开(公告)号：US20190196376A1

公开(公告)日：2019-06-27

申请号：US16109787

申请日：2018-08-23

Applicant: FUJI XEROX CO.,LTD.

Inventor： Fumiyuki HONDA ,  Miho IKEDA ,  Daisuke NAKAI ,  Aya KAKISHIMA ,  Shinji OKUYAMA ,  Yoshiki SHIMODAIRA

IPC: G03G15/00 ,  G03G15/01

Abstract: An image forming apparatus includes a transfer unit that transfers a toner image to a recording medium; a non-white toner image forming unit that forms a non-white toner image on the transfer unit by using non-white toner having a non-white color that differs from white; a white toner image forming unit that forms a white toner image on the transfer unit by using white toner that is white in color after the non-white toner image is formed on the transfer unit; and a control unit that controls an amount of the white toner used by the white toner image forming unit to form the white toner image so that the amount of the white toner is smaller when the non-white toner image is formed under the white toner image than when no toner image is formed under the white toner image.

公开(公告)号：US20140219680A1

公开(公告)日：2014-08-07

申请号：US14041898

申请日：2013-09-30

Applicant: FUJI XEROX CO., LTD.

Inventor： Takuro HAGIWARA ,  Yoshiki SHIMODAIRA ,  Yuko KAWASE ,  Satoru TSUTO ,  Minoru ROKUTAN ,  Satoya SUGIURA

IPC: G03G15/00 ,  G03G15/02

CPC classification number: G03G15/0216 ,  G03G15/0233

Abstract: An image forming apparatus includes a charging roller including elastic and surface layers and a photoconductor drum. Initially, the surface layer has a surface roughness Rz of 3-6 μm, and the layers have an impedance ratio of 0.81 or less in absolute value at a frequency of 800-3000 Hz. After a predetermined time, the surface roughness Rz is reduced by a decrement ΔRz of 0.1-4 μm. The drum has a film thickness D initially ranging from 20-40 μm and reduced by a decrement ΔD of 5-25 μm after the predetermined time. Herein, 0.005≦ΔRz/ΔD≦0.8 holds. The impedance ratio is represented as ZE/(ZE+ZS) wherein ZE and ZS represent the respective impedances of the elastic layer and the surface layer, and 100 k A4-size recording media recorded with images with an area coverage of 7% are printed in the predetermined time.

Abstract translation: 图像形成装置包括具有弹性和表面层的充电辊和感光鼓。 最初，表面层的表面粗糙度Rz为3-6μm，绝缘值的阻抗比在800〜3000Hz的范围内为0.81以下。 在预定时间之后，表面粗糙度Rz减少0.1-4μm的减量＆amp; Dgr; Rz。 滚筒的膜厚度D最初在20-40μm之间，并且在预定时间后减小了5-25μm的减量＆Dgr; D。 这里，0.005＆nlE;＆Dgr; Rz /＆Dgr; D＆nlE; 0.8成立。 阻抗比表示为ZE /（ZE + ZS），其中ZE和ZS表示弹性层和表面层的相应阻抗，并且打印了记录有面积覆盖率为7％的图像的100K A4尺寸记录介质 在预定时间内。