公开(公告)号：US20190310566A1

公开(公告)日：2019-10-10

申请号：US16298882

申请日：2019-03-11

Applicant: KONICA MINOLTA, INC.

Inventor： Takahiro MATSUO ,  Atsushi NAGAOKA ,  Masahiko TAKAHASHI

IPC: G03G15/04 ,  G03G15/043 ,  G02B27/30 ,  G03G15/00

Abstract: An optical writing device includes: a light source substrate in which a plurality of light sources and a driving circuit for driving the plurality of light sources are mounted on the same substrate surface; and an optical element that images outgoing light of the light sources on a photoreceptor, wherein the plurality of light sources are two-dimensionally disposed in plan view from an optical axis direction of the optical element, and the light sources having distances different from each other in the optical axis direction to the photoreceptor are included.

公开(公告)号：US20200159143A1

公开(公告)日：2020-05-21

申请号：US16673842

申请日：2019-11-04

Applicant: KONICA MINOLTA, INC.

Inventor： Akira TANIYAMA ,  Masahiko TAKAHASHI ,  Naoki TAJIMA ,  Takashi KUROSAWA ,  Hajime TANIGUCHI

IPC: G03G15/04 ,  G02B26/10

Abstract: An optical writing device includes: a deflector that deflects and scans light; optical elements; and a housing that holds the deflector and the optical element, wherein a support plate of the housing has an enclosed inner region that is substantially surrounded by a vibration suppressor and a vibration transmission blocker and supports the deflector, and the support plate also has a flat portion having a peninsular shape facing the vibration transmission blocker in the enclosed inner region, and an element holder for at least one or more of the optical elements having optical sensitivity in a vibration direction of the housing is disposed outside the enclosed inner region.

公开(公告)号：US20180017917A1

公开(公告)日：2018-01-18

申请号：US15641531

申请日：2017-07-05

Applicant: Konica Minolta, Inc.

Inventor： Masahiko TAKAHASHI ,  Makoto OOKI ,  Wataru SENOO ,  Atsushi NAGAOKA ,  Hidenari TACHIBE ,  Hajime TANIGUCHI ,  Takafumi YUASA ,  Yoshitaka OTANI

IPC: G03G15/00 ,  G01D5/34 ,  H04N1/00

CPC classification number: G03G15/5029 ,  G01D5/34 ,  G03G15/6564 ,  H04N1/00721 ,  H04N1/00734 ,  H04N1/0075 ,  H04N2201/0094

Abstract: In a displacement sensor, an illumination optical system, which converts laser light emitted from an emission unit into first converging light, and irradiates with the first converging light a detection space through which a target moves. An imaging optical system converts laser light reflected from the target into second converging light, and irradiates with the second converging light a light-receiving surface of a detection unit. The image of the emission unit into which the illumination optical system focuses the first converging light is displaced along the optical axis of the imaging optical system by a temperature change of the illumination optical system. The range in which the image is displaced is limited to be located either anterior to the front principal point of the imaging optical system, or posterior to the rear principal point of the imaging optical system.

公开(公告)号：US20240069478A1

公开(公告)日：2024-02-29

申请号：US18227017

申请日：2023-07-27

Applicant: KONICA MINOLTA, INC.

Inventor： Daisuke KOBAYASHI ,  Shohei DOKIYA ,  Makoto OOKI ,  Takafumi YUASA ,  Takaki UEMURA ,  Masahiko TAKAHASHI

IPC: G03G15/00

CPC classification number: G03G15/5029

Abstract: A sheet type discrimination device includes: a first light source unit that irradiates a sheet with light having a first wavelength and light having a second wavelength; a detection unit that detects light from the sheet and acquires a detection value based on the light; and a control unit that derives a determination result of a type of the sheet, wherein the first light source unit and the detection unit are located on a same side with respect to the sheet, the detection value includes: a first detection value; and a second detection value, and the control unit discriminates first-type recycled paper by first processing using the first detection value, and discriminates second-type recycled paper different from the first-type recycled paper by second processing using the second detection value.

公开(公告)号：US20200326533A1

公开(公告)日：2020-10-15

申请号：US16833817

申请日：2020-03-30

Applicant: Konica Minolta, Inc.

Inventor： Akira TANIYAMA ,  Masahiko TAKAHASHI ,  Naoki TAJIMA ,  Takashi KUROSAWA

IPC: G02B26/10 ,  H04N1/00 ,  H04N1/21

Abstract: An optical writing device performs writing by scanning an image surface of a photoconductor with light, and includes a light source unit including a light source that emits light, a deflection unit that deflects and scans the light, an optical element unit for the light, and a housing unit that holds the light source unit, the deflection unit, and the optical element unit. The housing unit includes a vibration isolator that isolates vibration transmitted from a vibration antinode where distribution of vibration in a sub direction perpendicular to a scanning direction of the light on the image surface of the photoconductor is maximum to at least one of seat face parts for the light source unit and the optical element unit having optical sensitivity in the sub direction, in a bottom face part of the housing unit, and a rigidity enhancer that increases rigidity of the seat face part.

公开(公告)号：US20230185223A1

公开(公告)日：2023-06-15

申请号：US18072643

申请日：2022-11-30

Applicant: KONICA MINOLTA, INC.

Inventor： Shohei DOKIYA ,  Daisuke KOBAYASHI ,  Masahiko TAKAHASHI ,  Takaki UEMURA ,  Makoto OOKI ,  Takafumi YUASA

IPC: G03G15/00

CPC classification number: G03G15/5029

Abstract: A technology aimed at improvement of paper discriminating accuracy is provided. In an image forming apparatus, a control unit derives a discriminating result for types of paper. To be specific, the control unit derives the discriminating result for types of paper using a first detection value based on absorption by the paper of the light having the first wavelength and a second detection value based on absorption by the paper of the light having the second wavelength. The first wavelength ranges from 750 nm to 1100 nm. The second wavelength ranges from 400 nm to 500 mn

公开(公告)号：US20210063938A1

公开(公告)日：2021-03-04

申请号：US17004535

申请日：2020-08-27

Applicant: Konica Minolta, Inc.

Inventor： Takafumi YUASA ,  Masahiko TAKAHASHI ,  Daisuke KOBAYASHI

IPC: G03G15/00

Abstract: A holder includes first and second attachments to be attached to an attachment target part of an image formation apparatus. The first attachment is located on a reflection light source side relative to a sensor in a direction of a line connecting the sensor and a reflection light source of the image formation apparatus The second attachment is located on an opposite side to the reflection light source relative to the sensor in the line direction. A holder includes first, second, and third attachments to be attached to an attachment target part of an image formation apparatus. The three attachments are elastically deformable portions. The first and second attachments are provided on one end side of the holder. The third attachment is provided on other end side of the holder. The three attachments are provided as to clamp the attachment target part by using resilience associated with elastic deformation.

公开(公告)号：US20160209644A1

公开(公告)日：2016-07-21

申请号：US14995497

申请日：2016-01-14

Applicant: Konica Minolta, Inc.

Inventor： Makoto OOKI ,  Masahiko TAKAHASHI ,  Wataru SENOO

IPC: B41J2/385 ,  G02B26/08

CPC classification number: G02B26/125 ,  G02B27/0018 ,  G03G15/04036

Abstract: An optical scanning apparatus has a first scanning optical element having a negative power in a sub-scanning direction. A first light beam and a second light beam enter the first scanning optical element through points of an input surface on a same side of a reference surface, which includes an optical axis of the first scanning optical element and being parallel to a main-scanning direction. The second light beam makes a greater angle with the reference surface than the first light beam. A first angle between the reference surface and a principal ray of a first ghost light beam is greater than a second angle between the reference surface and a principal ray of a first normal light beam and is smaller than a third angle between the reference surface and a principal ray of a second normal light beam.

Abstract translation: 光学扫描装置具有在副扫描方向上具有负功率的第一扫描光学元件。 第一光束和第二光束通过参考面的同一侧的输入面的点进入第一扫描光学元件，该基准面包括第一扫描光学元件的光轴并平行于主扫描方向 。 第二光束与参考表面比第一光束形成更大的角度。 参考表面和第一重影光束的主光线之间的第一角度大于参考表面和第一正常光束的主光线之间的第二角度，并且小于参考表面和第一正射光束之间的第三角度 第二普通光束的主光线。

公开(公告)号：US20220373953A1

公开(公告)日：2022-11-24

申请号：US17737517

申请日：2022-05-05

Applicant: Konica Minolta, Inc.

Inventor： Shohei DOKIYA ,  Daisuke KOBAYASHI ,  Masahiko TAKAHASHI ,  Makoto OOKI ,  Takafumi YUASA ,  Takaki UEMURA

IPC: G03G15/00

Abstract: A recording medium determination device includes a light emitter, a light detector, and a hardware processor. The light emitter emits inspection light to a recording medium. The light detector detects incident light including at least one of diffuse reflected light of the inspection light emitted to the recording medium and fluorescent light excited by the inspection light in the recording medium. The hardware processor makes a determination depending on a property of the recording medium based on a detection result of first incident light of the incident light in accordance with first inspection light of the inspection light and second incident light of the incident light in accordance with second inspection light of the inspection light obtained by the light detector. The second inspection light has an intensity whose peak wavelength is shorter than the peak wavelength of the first inspection light.

公开(公告)号：US20140168725A1

公开(公告)日：2014-06-19

申请号：US14108993

申请日：2013-12-17

Applicant: Konica Minolta, Inc.

Inventor： Akira YAMAMURA ,  Makoto OOKI ,  Takashi KUROSAWA ,  Hideo UEMURA ,  Masahiko TAKAHASHI ,  Kazuki IKEDA

IPC: H04N1/028

CPC classification number: H04N1/02815 ,  H04N1/00005 ,  H04N1/00015 ,  H04N1/00031 ,  H04N1/00047 ,  H04N1/0005 ,  H04N2201/0091

Abstract: An image forming apparatus includes: an image reading mechanism configured to read an image from a document; an image forming mechanism configured to print the image read by the image reading mechanism on a recording sheet; and an image inspection mechanism configured to read the image printed on the recording sheet in the image forming mechanism. The image reading mechanism and the image inspection mechanism each include: a light source configured to irradiate a reading target with light; and a solid-state image sensing device on which reflected light from the reading target is made incident, and configured to perform photoelectric conversion operation. Light emitting members forming the light sources of the image reading mechanism and the image inspection mechanism have the same spectral characteristics.

Abstract translation: 图像形成装置包括：图像读取机构，被配置为从文档读取图像; 图像形成机构，被配置为将由图像读取机构读取的图像打印在记录纸上; 以及图像检查机构，被配置为读取在图像形成机构中印刷在记录纸上的图像。 图像读取机构和图像检查机构各自包括：被配置为用光照射读取目标的光源; 以及其上使来自读取对象的反射光入射的固态图像感测装置，并且被配置为进行光电转换操作。 形成图像读取机构和图像检查机构的光源的发光构件具有相同的光谱特性。