公开(公告)号：US09042767B2

公开(公告)日：2015-05-26

申请号：US14179234

申请日：2014-02-12

Applicant: KYOCERA DOCUMENT SOLUTIONS INC.

Inventor： Jun Nakai ,  Eiji Gyotoku ,  Masahito Ishino

IPC: G03G15/00 ,  G03G21/06

CPC classification number: G03G15/50 ,  G03G15/657 ,  G03G21/06

Abstract: An image forming apparatus includes an image bearing member, a charging unit, a laser scanning unit, a developing unit, a transfer member, a recording medium conveyance path, a cleaning unit, and a heating element. The recording medium conveyance path includes a resin member that forms a conveyance surface. The resin member has a concave portion at a location closer to the transfer member than to the image bearing member. The heating element for heating the image bearing member is accommodated in the concave portion. The heating element is disposed downstream from the contact point between the image bearing member and the transfer member in the conveyance direction in which a recording medium is conveyed through the recording medium conveyance path. The developing unit is located upstream from the contact point between the image bearing member and the transfer member in the conveyance direction of the recording medium.

Abstract translation: 图像形成装置包括图像承载部件，充电单元，激光扫描单元，显影单元，转印部件，记录介质输送路径，清洁单元和加热元件。 记录介质输送路径包括形成输送面的树脂部件。 树脂构件在比图像承载构件更靠近转印构件的位置处具有凹部。 用于加热图像承载部件的加热元件容纳在凹部中。 加热元件设置在图像承载部件和转印部件之间的接触点的下游，在输送方向上记录介质通过记录介质输送路径传送。 显影单元在记录介质的输送方向上位于图像承载部件和转印部件之间的接触点的上游。

公开(公告)号：US11467513B2

公开(公告)日：2022-10-11

申请号：US17486021

申请日：2021-09-27

Applicant: KYOCERA Document Solutions Inc.

Inventor： Tomohiro Tamaki ,  Takahisa Nakaue ,  Kotatsu Kawaguchi ,  Masahito Ishino ,  Yukari Ota

IPC: G03G15/06 ,  G03G15/08 ,  G03G15/02

Abstract: An image forming apparatus includes an image carrier, a charger, an exposure device, a development device and a pressing mechanism. The developer carrier is pressed on the image carrier with a predetermined pressing force to form a nip area between the roller part and the image carrier. A roller part of the developer carrier has an Asker C hardness of 65° or more and 73° or less. When the pressing force is set to X (N) and a width of the nip area in a circumferential direction of the image carrier is set to Y (μm), 3.0≤X≤8.0 and 550≤Y≤700, and the following expressions (1) and (2) are satisfied, Y ≥ 31. X + 393.2 ⁢ and , ( 1 ) Y ≤ 47. X + 450.1 . ( 2 )

公开(公告)号：US10698359B2

公开(公告)日：2020-06-30

申请号：US16505877

申请日：2019-07-09

Applicant: KYOCERA Document Solutions Inc.

Inventor： Toshiki Fujita ,  Ikuo Makie ,  Masahito Ishino ,  Nariaki Tanaka ,  Kiyotaka Kobayashi

IPC: G03G5/00 ,  G03G21/08 ,  G03G5/047 ,  G03G5/05 ,  G03G5/06 ,  G03G21/16

Abstract: An image forming apparatus includes an image bearing member and a static elimination device. The static elimination device irradiates static elimination light onto a circumferential surface of the image bearing member. The image bearing member includes a conductive substrate and a single-layer photosensitive layer. The photosensitive layer contains a charge generating material, a hole transport material, an electron transport material, and a binder resin. The static elimination light has a wavelength of at least 600 nm and no greater than 800 nm. The photosensitive layer has an optical absorption coefficient of at least 600 cm−1 and no greater than 1,500 cm−1 with respect to light having a wavelength of 660 nm.

公开(公告)号：US09885972B2

公开(公告)日：2018-02-06

申请号：US15277751

申请日：2016-09-27

Applicant: KYOCERA Document Solutions Inc.

Inventor： Minoru Wada ,  Masaru Hatano ,  Masaki Kadota ,  Masahito Ishino ,  Keisuke Isoda ,  Atsushi Ishizaki

IPC: G03G15/02 ,  G03G15/06

CPC classification number: G03G15/0266 ,  G03G15/065

Abstract: An image forming includes an apparatus main body, a photoreceptor drum, a charging apparatus, a developing device, a transfer apparatus, a charging bias applying unit, a developing bias applying unit, a bias adjusting unit, and a print density measurement unit. The bias adjusting unit forms a non-charged area on a circumference surface of the photoreceptor drum and applies a developing bias constituted of a first electric potential to a developing roller to form a first toner image by an electric potential difference between the non-charged area and the developing roller. The charging bias applying unit forms a second toner image by an electric potential difference between the electric potential area and the developing roller. The charging bias applying unit decides a value of a charging bias corresponding to a target electric potential from measurement results of print densities of the first toner image and the second toner image.

公开(公告)号：US09104168B2

公开(公告)日：2015-08-11

申请号：US14179156

申请日：2014-02-12

Applicant: KYOCERA DOCUMENT SOLUTIONS INC.

Inventor： Eiji Gyotoku ,  Masahito Ishino ,  Jun Nakai

IPC: G03G21/20 ,  G03G21/06

CPC classification number: G03G21/06 ,  G03G21/20

Abstract: An image forming apparatus includes an image bearing member, a developing unit, a cleaning unit, and a heating element. The heating element for heating the image bearing member includes: a substrate having a length corresponding to an entire region of the image bearing member in a longitudinal direction of the image bearing member; and a plurality of resistor chips mounted on the substrate. At least either resistance values or spacing intervals of the resistor chips vary in a longitudinal direction of the substrate to ensure that the surface temperature distribution of the image bearing member heated by the heating element is uniform.

Abstract translation: 图像形成装置包括图像承载部件，显影单元，清洁单元和加热元件。 用于加热图像承载部件的加热元件包括：在图像承载部件的纵向方向上具有对应于图像承载部件的整个区域的长度的基板; 以及安装在基板上的多个电阻芯片。 至少电阻片的电阻值或间隔间隔在衬底的纵向方向上变化，以确保由加热元件加热的图像承载构件的表面温度分布是均匀的。

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。