公开(公告)号：US11480890B2

公开(公告)日：2022-10-25

申请号：US17501551

申请日：2021-10-14

Applicant: KYOCERA Document Solutions Inc.

Inventor： Jun Nakai

IPC: G03G15/06 ,  G03G15/00

Abstract: An image forming apparatus includes: a developing roller; a photosensitive drum; a first measurement device that measures a blank portion current in a first line on the photosensitive drum which extends in a scanning direction of the photosensitive drum and on which no toner patch is formed; a second measurement device that measures a measuring development current in a second line on the photosensitive drum which extends in the scanning direction of the photosensitive drum and on which a toner patch is formed; and a control device that functions as a patch setter and a first calculator. The patch setter sets a patch width of the toner patch in the scanning direction of the photosensitive drum. The first calculator calculates an actual development current based on a developable width of the photosensitive drum in the scanning direction, the patch width, the blank portion current, and the measuring development current.

公开(公告)号：US20180059410A1

公开(公告)日：2018-03-01

申请号：US15687215

申请日：2017-08-25

Applicant: KYOCERA Document Solutions Inc.

Inventor： Jun Nakai

IPC: B41J2/385

CPC classification number: G02B26/127 ,  G02B26/12 ,  G02B26/121 ,  G03G15/043

Abstract: A laser scanning device includes a rotary polygon mirror, a drive motor, a light detecting portion, a measurement processing portion, and an identification processing portion. The rotary polygon mirror has reflection surfaces and rotates such that light is scanned by the reflection surfaces in sequence. The light detecting portion detects the light scanned by the rotary polygon mirror. The measurement processing portion, in each of light detection cycles, measures an interval between a light detection timing and an output timing at which a drive signal that is to be input to a drive motor first after the detection timing, is output. The identification processing portion identifies a reflection surface corresponding to a standard interval, based on the standard interval and the measured interval, the standard interval being one of intervals acquired in the detection cycles that correspond to the reflection surfaces.

公开(公告)号：US20150132025A1

公开(公告)日：2015-05-14

申请号：US14535224

申请日：2014-11-06

Applicant: KYOCERA Document Solutions Inc.

Inventor： Jun Nakai

IPC: G03G21/00

CPC classification number: G03G21/08

Abstract: An image forming apparatus includes a light source, a cleaning portion, and a light guide member. The light source irradiates an image carrying member with light to remove electricity from a surface of the image carrying member after formation of an electrostatic latent image thereon. The cleaning portion cleans the surface of the image carrying member. The light guide member is disposed on an upstream side of the cleaning portion in a rotation direction of the image carrying member, forms a light guide path for guiding the light irradiated from the light source to the image carrying member, and includes at least one reflection surface, wherein an area of the reflection surface on the image carrying member side is lower in reflection ratio than an area of the reflection surface on the light source side.

Abstract translation: 图像形成装置包括光源，清洁部和导光构件。 光源在其上形成静电潜像之后，用光照射图像承载部件，以从图像承载部件的表面去除电力。 清洁部分清洁图像承载构件的表面。 导光构件沿图像承载构件的旋转方向设置在清洁部分的上游侧，形成用于将从光源照射的光引导到图像承载构件的导光路径，并且包括至少一个反射 表面，其中所述图像承载部件侧的所述反射面的面积的反射率低于所述光源侧的反射面的面积。

公开(公告)号：US08743170B2

公开(公告)日：2014-06-03

申请号：US13775742

申请日：2013-02-25

Applicant: Kyocera Document Solutions Inc.

Inventor： Issei Nakano ,  Nobuhiro Fukuma ,  Jun Nakai

IPC: B41J27/00 ,  B41J2/435

CPC classification number: G03G15/326 ,  G02B26/125 ,  G03G15/0435 ,  G03G21/20 ,  G03G2215/0404 ,  H04N1/00519 ,  H04N1/00986 ,  H04N1/113

Abstract: A housing includes a base portion for installation of an optical beam emission unit, a light guiding unit, and a deflection unit, and a cover portion that includes an indented heat emission channel that transmits heat in an inner portion of the housing to a fluid.

Abstract translation: 壳体包括用于安装光束发射单元的基座部分，导光单元和偏转单元，以及覆盖部分，其包括在壳体的内部部分中将热量传递到流体的凹陷的发热通道。

公开(公告)号：US20130315626A1

公开(公告)日：2013-11-28

申请号：US13898279

申请日：2013-05-20

Applicant: KYOCERA Document Solutions Inc.

Inventor： Jun Nakai ,  Katsuya Ota

IPC: G03G21/00

CPC classification number: G03G21/08 ,  G03G21/06

Abstract: A static eliminating device includes: a housing; a substrate mounted to the housing; a light-emitting part mounted on a mounting surface of the substrate; a partition member connected to the housing to cover the substrate and the light-emitting part and face a portion of the housing to which the substrate and the light-emitting part are mounted so that an opening facing the surface of the image carrier is formed in a light-emitting region across which light is delivered from the light-emitting part to the surface of the image carrier; and a restricting protrusion abutting at a distal end thereof against the partition member to support the partition member and restricting the position of the partition member to ensure the formation of the opening. A distal side portion of the restricting protrusion located within the light-emitting region has a tapered shape narrowing with approach toward the partition member.

Abstract translation: 一种静电消除装置，包括：壳体; 安装到壳体的基板; 安装在所述基板的安装面上的发光部; 连接到所述壳体以覆盖所述基板和所述发光部分并且面向所述壳体的所述基板和所述发光部分安装到所述壳体的部分的分隔构件，使得与所述图像载体的表面相对的开口形成在 光从发光部分输送到图像载体的表面的发光区域; 以及限制突起，其远端抵靠在分隔构件上，以支撑分隔构件并限制分隔构件的位置，以确保形成开口。 位于发光区域内的限制突起的远侧部分具有朝向分隔构件的方式变窄的锥形形状。

公开(公告)号：US20250147303A1

公开(公告)日：2025-05-08

申请号：US18882577

申请日：2024-09-11

Applicant: KYOCERA Document Solutions Inc.

Inventor： Takuto Kunimasa ,  Jun Nakai

IPC: G02B26/12 ,  B41J2/44 ,  B41J2/47 ,  G03G15/043

Abstract: A motor that rotates a rotation shaft of a polygon mirror is mounted on a motor board. A first photoelectric conversion element senses beam light reflected by each of a plurality of mirror surfaces. A sensing target portion is provided to the rotation shaft. A light sensor is disposed apart from the motor board and includes a light emitting portion and a second photoelectric conversion element. An amplification circuit amplifies a sense signal of the second photoelectric conversion element. A control device controls a timing of starting to form an electrostatic latent image on the basis of a sense signal of the first photoelectric conversion element. The control device identifies a scanning surface that is scanning the beam light on the basis of the sense signal of the second photoelectric conversion element amplified by the amplification circuit, and adjusts a pixel pitch of the electrostatic latent image.

公开(公告)号：USRE47829E1

公开(公告)日：2020-01-28

申请号：US15905476

申请日：2018-02-26

Applicant: KYOCERA Document Solutions Inc.

Inventor： Yosuke Saito ,  Hironobu Oi ,  Jun Nakai ,  Yoshinori Nakamura

IPC: G03G21/00 ,  G03G21/08

Abstract: A light guide member has a transmitting/reflecting portion transmitting and reflecting light that is emitted from a light source, to enter one end of the light guide member in a longitudinal direction, and be guided to the other end of the light guide member so that the light is applied to: a position between the developing roller and the transfer roller on the image carrier on a downstream side in the traveling direction of the transfer target member; and a position between the transfer roller and the cleaning portion on the image carrier on an upstream side in the traveling direction of the transfer target member. Furthermore, the light guide member has a convex portion having an arc-shaped cross section and being formed outward at a position opposing the transmitting/reflecting portion in a part of a predetermined specific region at one end or both ends in the longitudinal direction.

公开(公告)号：US20130156465A1

公开(公告)日：2013-06-20

申请号：US13711330

申请日：2012-12-11

Applicant: KYOCERA Document Solutions Inc.

Inventor： Jun Nakai ,  Takeshi Watanabe ,  Katsuya Ota

IPC: G03G21/00

CPC classification number: G03G21/08

Abstract: The light emitting portions 140 are mounted on the substrate 120, and emit neutralization light. The first end engagement portion 115 is engaged with the first end portion 121 of the substrate 120 opposite to the image carrier 2. The partitioning member 130 is connected to the housing 110, so as to form an opened portion that is opened to face the surface of the image carrier 2. The plurality of restriction protrusions 150 are arranged along an axial direction of the image carrier 2. The first end engagement portion 115 is disposed in the central portion of the plurality of restriction protrusions 150 in the arrangement direction. The arrangement direction of the plurality of restriction protrusions 150 curves, such that a central portion of the restriction protrusions in the axial direction is closer to the image carrier than end portions of the restriction protrusions in the axial direction.

Abstract translation: 发光部140安装在基板120上，发出中和光。 第一端部接合部分115与基板120的与图像载体2相对的第一端部121接合。分隔件130连接到壳体110，以形成敞开的面向表面的开口部分 多个限制突起150沿图像载体2的轴向布置。第一端部接合部115沿排列方向设置在多个限制突起150的中心部分。 多个限制突起150的排列方向弯曲，使得限制突起在轴向方向上的中心部分比轴向方向上的限制突起的端部更靠近图像载体。

公开(公告)号：US11467523B2

公开(公告)日：2022-10-11

申请号：US17529733

申请日：2021-11-18

Applicant: KYOCERA Document Solutions Inc.

Inventor： Jun Nakai

IPC: G03G15/00 ,  G03G15/06

Abstract: An image forming apparatus includes a developing roller, a photoconductor drum, a density detector, a current detector, and a controller. The developing roller carries a toner. The photoconductor drum carries a toner patch. The density detector detects toner density of the toner patch. The current detector detects developing current flowing to the toner patch. The controller calculates an inclination of an approximate straight line approximating a relation between the toner density and the developing current. The developing roller develops three or more toner patches, different in toner density and different in developing current from one another, on the photoconductor drum. The controller calculates the inclination, using different mathematical expressions depending on whether three toner patches or four toner patches are provided.

公开(公告)号：US20210160381A1

公开(公告)日：2021-05-27

申请号：US17105693

申请日：2020-11-27

Applicant: KYOCERA Document Solutions Inc.

Inventor： Jun Nakai

IPC: H04N1/00 ,  H04N1/405 ,  H04N1/60

Abstract: In one embodiment, an image forming apparatus includes an image region dividing portion which determines, within an image formable width, an image boundary position that matches with one of matrix boundaries corresponding to boundaries between dither matrices, and sets image adjustment regions. The image forming apparatus also includes a correction processing portion which uses common calibration data to determine imaginary adjustment regions positioned closest to the image adjustment regions, respectively, in a main scanning direction, and uses a correction amount for the determined imaginary adjustment region to correct the position in a sub-scanning direction, thereby reducing a color shift. The image region dividing portion determines the image boundary position by applying a rounding function to a value obtained by dividing the number of pixels constituting a width of the image adjustment region by the number of pixels in one cycle of the dither matrix in the main scanning direction.