公开(公告)号：US20170308003A1

公开(公告)日：2017-10-26

申请号：US15492001

申请日：2017-04-20

Applicant: KYOCERA Document Solutions Inc.

Inventor： Keisuke ISODA

IPC: G03G15/08

CPC classification number: G03G15/0855 ,  G03G15/0862

Abstract: A toner amount detection sensor has a substrate, and a case housing. In the substrate, the light emitting element, the first light receiving element, and the second light receiving element are attached with an interval to the same first surface. In the substrate, first and second slits and are provided between a region where the light emitting element is attached and regions where the first light receiving element and the second light receiving element are attached. In the case housing, first and second light shielding walls and are disposed in such a manner as to extend to reach the inside of the first and second slits and when attached to the substrate and first and second light shielding walls and are provided between the light emitting element and the first light receiving element and between the light emitting element and the second light receiving element.

公开(公告)号：US20150029257A1

公开(公告)日：2015-01-29

申请号：US14336433

申请日：2014-07-21

Applicant: KYOCERA Document Solutions Inc.

Inventor： Keisuke ISODA

IPC: B41J11/00

CPC classification number: B41J11/009

Abstract: A sheet attribution detection sensor device includes a light emission element configured to emit incident light to a paper sheet, a light receiving element configured to receive a specular reflection component of reflection light from the paper sheet of the incident light in order to specify a thickness of the paper sheet, and light receiving elements configured to receive a diffuse reflection component of the reflection light in order to specify one of surface roughness and color of the paper sheet.

Abstract translation: 片材属性检测传感器装置包括被配置为向纸张发射入射光的发光元件，被配置为从入射光的纸张接收反射光的镜面反射分量的光接收元件，以便指定厚度 纸张和被配置为接收反射光的漫反射分量的光接收元件，以指定纸张的表面粗糙度和颜色之一。

公开(公告)号：US20170097584A1

公开(公告)日：2017-04-06

申请号：US15277546

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 ,  G03G15/0189 ,  G03G15/065 ,  G03G15/5058

Abstract: An image forming apparatus 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 controls the charging bias applying unit to form a plurality of electric potential areas of electric potentials with different magnitudes. The bias adjusting unit applies a predetermined developing bias corresponding to a target electric potential to the developing roller, so as to form a plurality of toner images by electric potential differences between the developing bias and the plurality of electric potential areas. The bias adjusting unit decides a value of a charging bias corresponding to the target electric potential from measurement results of print densities of the plurality of toner images measured by the print density measurement unit.

公开(公告)号：US20170090334A1

公开(公告)日：2017-03-30

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

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：US20170308002A1

公开(公告)日：2017-10-26

申请号：US15491999

申请日：2017-04-20

Applicant: KYOCERA Document Solutions Inc.

Inventor： Keisuke ISODA

IPC: G03G15/08

CPC classification number: G03G15/0855 ,  G03G15/0862

Abstract: A toner amount detection sensor has a first light receiving element, a second light receiving element, and a toner amount calculation unit. The first light receiving element is provided on a side opposite to a light emitting element with respect to a plane extending in a direction perpendicular to a surface of a transfer belt. The second light receiving element is provided at a position avoiding a plane containing the light emitting element and the first light receiving element and is provided separately from the first light receiving element. The toner amount calculation unit calculates the toner amount from the light quantity of the light equivalent to the specular reflection light received by the first light receiving element and the light quantity of the diffuse-reflected light received by the second light receiving element.

公开(公告)号：US20170146922A1

公开(公告)日：2017-05-25

申请号：US15346142

申请日：2016-11-08

Applicant: KYOCERA Document Solutions Inc.

Inventor： Minoru WADA ,  Masaru HATANO ,  Masaki KADOTA ,  Masahito ISHINO ,  Keisuke ISODA ,  Atsushi ISHIZAKI

IPC: G03G15/02

CPC classification number: G03G15/0266 ,  G03G15/043 ,  G03G15/5058

Abstract: An image forming apparatus includes an apparatus main body, a photoreceptor drum, a charging apparatus, an exposure apparatus, a developing device, a charging bias applying unit, a developing bias applying unit, an image condition adjusting unit, and a print density measurement unit. The image condition adjusting unit forms a second electric potential region by applying the charging bias where a first differential electric potential is subtracted from a first tentative charging bias on a circumference surface of a photoreceptor drum, and forms a second toner image by an electric potential difference between the second electric potential region and a developing roller by applying the target electric potential. The image condition adjusting unit decides value of the charging bias corresponding to the target electric potential from measurement results of print densities of a first toner image and the second toner image measured by the print density measurement unit.