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    Image forming apparatus including an image carrier, a charging member, a voltage applying part, a current measuring part and a controlling part
    1.
    发明授权
    Image forming apparatus including an image carrier, a charging member, a voltage applying part, a current measuring part and a controlling part 有权
    图像形成装置，包括图像载体，充电部件，电压施加部，电流测量部和控制部

    公开(公告)号：US09285701B2

    公开(公告)日：2016-03-15

    申请号：US14049176

    申请日：2013-10-08

    Applicant: KYOCERA DOCUMENT SOLUTIONS INC.

    Inventor： Yoshitaka Imanaka ,  Masahiro Tsutsumi

    IPC: G03G15/00 ,  G03G15/02

    CPC classification number: G03G15/0266

    Abstract: An image forming apparatus includes an image carrier, a charging member, a voltage applying part, a current measuring part and a controlling part. The image carrier carries a toner image. The charging member electrically charges the image carrier. The voltage applying part applies voltage to the charging member. The current measuring part measures current flowing into the charging member. The controlling part controls applied voltage of the voltage applying part. The controlling part decides, when a predetermined voltage is applied to the charging member for a predetermined time by the voltage applying part, if an increase quantity of the current measured by the current measuring part exceeds a predetermined threshold value, that at least one of the image carrier and the charging member is in an abnormal state.

    Abstract translation: 图像形成装置包括图像载体，充电部件，电压施加部，电流测量部和控制部。 图像载体携带调色剂图像。 充电部件对图像载体进行电荷充电。 电压施加部分向充电部件施加电压。 电流测量部分测量流入充电部件的电流。 控制部控制电压施加部的施加电压。 控制部分通过电压施加部件将预定电压施加到充电部件达预定时间时，如果由电流测量部件测量的电流的增加量超过预定阈值，则确定至少一个 图像载体和充电构件处于异常状态。

    Image forming apparatus
    2.
    发明授权
    Image forming apparatus 有权
    图像形成装置

    公开(公告)号：US08706007B2

    公开(公告)日：2014-04-22

    申请号：US13975944

    申请日：2013-08-26

    Applicant: KYOCERA Document Solutions Inc.

    Inventor： Shinki Miyaji ,  Masaki Kadota ,  Yoshitaka Imanaka ,  Hiroka Itani ,  Masahito Ishino

    IPC: G03G15/00 ,  G03G15/02

    CPC classification number: G03G15/02 ,  G03G5/04 ,  G03G5/0596 ,  G03G15/75

    Abstract: An image forming apparatus includes a positively-charged single layer type electrophotographic photoreceptor, a charging device with a contact charging roller for charging a surface of the photoreceptor and an exposure device for exposing the charged surface of the photoreceptor to light to form an electrostatic latent image thereon. A developing device develops the electrostatic latent image into a toner image and a transfer device transfers the toner image to a transferred body. The charging roller is made of electrically conductive rubber having an Asker-C rubber hardness of 62 to 81°. A roller surface roughness of the charging roller has an average distance (Sm) between asperity peaks on a cross-sectional curve of 55 to 130 μm and that a ten-point average roughness (Rz) is 9 to 19 μm. The image forming apparatus is capable of preventing carrier trapping, film peeling and uneven charging in the photoreceptor.

    Abstract translation: 图像形成装置包括带正电的单层电子照相感光体，具有用于对感光体的表面充电的接触充电辊的充电装置和用于将感光体的带电表面曝光以形成静电潜像的曝光装置 上。 显影装置将静电潜像显影成调色剂图像，并且转印装置将调色剂图像转印到转印体上。 充电辊由Asker-C橡胶硬度为62〜81°的导电橡胶制成。 充电辊的辊表面粗糙度在55-130μm的横截面曲线上的平均峰值之间的平均距离（Sm），并且十点平均粗糙度（Rz）为9至19μm。 图像形成装置能够防止感光体中的载体捕获，膜剥离和不均匀充电。

    Image forming apparatus, developer used thereby, and image forming method
    3.
    发明授权
    Image forming apparatus, developer used thereby, and image forming method 有权

    公开(公告)号：US10338514B2

    公开(公告)日：2019-07-02

    申请号：US15517643

    申请日：2015-10-23

    Applicant: KYOCERA Document Solutions Inc.

    Inventor： Yoshitaka Imanaka ,  Hiroaki Watanabe ,  Masahito Ishino

    IPC: G03G21/00 ,  G03G15/16 ,  G03G15/095 ,  G03G21/20

    Abstract: An image forming apparatus (1) includes an image bearing member (50), a charging section (51), a developing section (52), and a cleaning member (81). The image bearing member (50) contains filler particles (87). The charging section (51) is either in contact with or positioned close to the image bearing member (50) and is configured to electrically charge the image bearing member (50) by generating a proximity discharge between the charging section (51) and the image bearing member (50). The developing section (52) supplies toner to the circumferential surface of the charged image bearing member (50). The cleaning member (81) has a degree of hardness equal to or higher than 65° and a degree of impact resilience equal to or lower than 30%. The cleaning member (81) is brought into pressure contact with the circumferential surface of the image bearing member (50) being rotated, by applying linear pressure equal to or higher than 15 gf/cm.

    Image forming apparatus and image forming method
    5.
    发明授权
    Image forming apparatus and image forming method 有权

    公开(公告)号：US11320760B2

    公开(公告)日：2022-05-03

    申请号：US16932191

    申请日：2020-07-17

    Applicant: KYOCERA Document Solutions Inc.

    Inventor： Masahito Ishino ,  Keiya Nishimura ,  Yoshitaka Imanaka ,  Toshiki Fujita

    IPC: G03G15/02 ,  G03G5/05 ,  G03G5/06 ,  G03G5/147

    Abstract: An image forming apparatus includes an image bearing member and a charging roller that charges a circumferential surface of the image bearing member to a positive polarity. The image bearing member includes a conductive substrate and a photosensitive layer of a single layer, and satisfies formula (1) shown below. The photosensitive layer contains a charge generating material, a hole transport material, an electron transport material, and a binder resin. 0.60 ≦ V ( Q / S ) × ( d / ɛ r · ɛ 0 ) ( 1 ) In formula (1), Q represents a charge amount [C] of the circumferential surface of the image bearing member, S represents a charge area [m2] of the charged circumferential surface of the image bearing member, d represents a film thickness [m] of the photosensitive layer, co represents vacuum permittivity [F/m], and V represents a value calculated in accordance with formula V=V0−Vr.

    IMAGE FORMING APPARATUS
    7.
    发明申请
    IMAGE FORMING APPARATUS 有权
    图像形成装置

    公开(公告)号：US20130343783A1

    公开(公告)日：2013-12-26

    申请号：US13975944

    申请日：2013-08-26

    Applicant: KYOCERA Document Solutions Inc.

    Inventor： Shinki Miyaji ,  Masaki Kadota ,  Yoshitaka Imanaka ,  Hiroka Itani ,  Masahito Ishino

    IPC: G03G15/02

    CPC classification number: G03G15/02 ,  G03G5/04 ,  G03G5/0596 ,  G03G15/75

    Abstract: An image forming apparatus includes a positively-charged single layer type electrophotographic photoreceptor, a charging device with a contact charging roller for charging a surface of the photoreceptor and an exposure device for exposing the charged surface of the photoreceptor to light to form an electrostatic latent image thereon. A developing device develops the electrostatic latent image into a toner image and a transfer device transfers the toner image to a transferred body. The charging roller is made of electrically conductive rubber having an Asker-C rubber hardness of 62 to 81°. A roller surface roughness of the charging roller has an average distance (Sm) between asperity peaks on a cross-sectional curve of 55 to 130 μm and that a ten-point average roughness (Rz) is 9 to 19 μm. The image forming apparatus is capable of preventing carrier trapping, film peeling and uneven charging in the photoreceptor.

    Abstract translation: 图像形成装置包括带正电的单层电子照相感光体，具有用于对感光体的表面充电的接触充电辊的充电装置和用于将感光体的带电表面曝光以形成静电潜像的曝光装置 上。 显影装置将静电潜像显影成调色剂图像，并且转印装置将调色剂图像转印到转印体上。 充电辊由Asker-C橡胶硬度为62〜81°的导电橡胶制成。 充电辊的辊表面粗糙度在55-130μm的横截面曲线上具有不均匀峰之间的平均距离（Sm），并且十点平均粗糙度（Rz）为9至19μm。 图像形成装置能够防止感光体中的载体捕获，膜剥离和不均匀充电。

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