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。

公开(公告)号：US09122243B2

公开(公告)日：2015-09-01

申请号：US14083155

申请日：2013-11-18

Applicant: KYOCERA DOCUMENT SOLUTIONS INC.

Inventor： Shinki Miyaji

IPC: G03G21/20 ,  G03G21/00

CPC classification number: G03G21/206 ,  G03G21/0094

Abstract: An image forming apparatus includes an image carrier, a charging member, a transferring member, a first voltage applying part, a current measuring part, a fan, a cleaning member and a controlling part.The controlling part carries out an aging operation rotating the image carrier and bringing the cleaning member in sliding contact with the image carrier before forming an image. The controlling part lengthens a running time of the aging operation in a case where a current value measured by the current measuring part is equal to or less than a first threshold value when the fan blows an outside air to the image carrier and the first voltage applying part applies voltage to one of the charging member and transferring member, in comparison with another case where the current value measured by the current measuring part exceeds the first threshold value.

Abstract translation: 图像形成装置包括图像载体，充电构件，转印构件，第一施加电压部，电流测量部，风扇，清洁构件和控制部。 控制部件在形成图像之前执行使图像载体旋转的老化操作，并使清洁部件与图像载体滑动接触。 在风扇将外部空气吹送到图像载体并施加第一电压的情况下，控制部件在由当前测量部分测量的电流值等于或小于第一阈值的情况下，延长老化操作的运行时间 与由电流测量部件测量的电流值超过第一阈值的另一情况相比，将电压部分施加到充电部件和传送部件之一。

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。