公开(公告)号：US20210234981A1

公开(公告)日：2021-07-29

申请号：US17154064

申请日：2021-01-21

Applicant: KYOCERA Document Solutions Inc.

Inventor： Kei OUCHI ,  Ryotaro TODOKORO

IPC: H04N1/00 ,  H04N1/028 ,  H04N1/48

Abstract: An image reading apparatus is provided with: a reading processing unit which moves a reading unit, causes a light emitting unit to emit a first amount of light, reads an electric charge generated by a photoelectric conversion unit, and reads an image of a document placed on a document placing surface on the basis of the read electric charge; and a detection processing unit which causes a light emitting unit to emit a second amount of light greater than the first amount of light, reads an electric charge generated by the photoelectric conversion unit, and detects the size of the document placed on the document placing surface on the basis of the read electric charge.

公开(公告)号：US20250164904A1

公开(公告)日：2025-05-22

申请号：US18948177

申请日：2024-11-14

Applicant: KYOCERA Document Solutions Inc.

Inventor： Takaaki MURASE ,  Ryotaro TODOKORO

IPC: G03G15/043 ,  G02B26/12

Abstract: An optical scanning device includes a light source, a deflector, and a first lens and a second lens. A light beam from the light source strikes a deflection surface on the deflector obliquely in the sub-scanning direction. For the first and second lenses, the shapes of their entrance and exit surfaces with respect to the light beam are defined by a main scanning direction shape formula and a sub-scanning direction shape formula that include different coefficients for one and the other sides with respect to the middle in the main scanning direction. The sub-scanning direction shape formula includes, as a variable, a sub-scanning direction curvature radius defined by a sub-scanning direction curvature radius definition formula. The sub-scanning direction curvature radius definition formula is given by a polynomial with a coordinate in the main scanning direction as a variable, and includes a first order term of the variable.

公开(公告)号：US20210037154A1

公开(公告)日：2021-02-04

申请号：US16939477

申请日：2020-07-27

Applicant: KYOCERA Document Solutions Inc.

Inventor： Ryotaro TODOKORO

IPC: H04N1/00 ,  B65H31/02 ,  B65H31/24

Abstract: An image forming apparatus includes a duct, a filter provided inside the duct, a first fan provided on an upstream side of the filter in an exhaust direction and a second fan provided on a downstream side of the filter in the exhaust direction. A first mode operation containing a first operation in which the first fan sends air to the filter and a second operation in which the second fan sends air to the filter after the first operation is performed at least once, and then a second mode in which the first fan sends air in the exhaust direction is performed.

公开(公告)号：US20250044719A1

公开(公告)日：2025-02-06

申请号：US18785412

申请日：2024-07-26

Applicant: KYOCERA Document Solutions Inc.

Inventor： Ryotaro TODOKORO

IPC: G03G15/043 ,  B41J2/44 ,  B41J2/47 ,  G02B26/12 ,  G03G15/00 ,  G03G15/04 ,  G03G15/06

Abstract: An optical scanning device includes a light source unit, a polygonal mirror, a scanning lens, a casing, and a temperature sensor. The light source unit is configured to emit a laser beam. The polygonal mirror is configured to reflect the emitted laser beam from the light source unit by being rotated about a rotation axis extending in an upper-and-lower direction, whereby a peripheral surface of an image bearing member is scanned in a main scanning direction. The scanning lens is configured to form the laser beam reflected by the polygonal mirror into an image on the peripheral surface of the image bearing member. The casing is configured to house the light source unit, the polygonal mirror, and the scanning lens. The temperature sensor is configured to detect a temperature in the casing. The temperature sensor is configured to detect a temperature of the developing device.

公开(公告)号：US20190129325A1

公开(公告)日：2019-05-02

申请号：US16167629

申请日：2018-10-23

Applicant: KYOCERA Document Solutions Inc.

Inventor： Ryotaro TODOKORO

IPC: G03G15/043 ,  G02B26/12

Abstract: In an optical scanning device, a light source includes a first light emitting point of an amount of light corresponding to a first mode and a second light emitting point of an amount of light corresponding to a second mode, and a control unit uses light beams emitted from a light emitting point of an amount of light corresponding to a mode set by a setting unit when the writing of image data is performed and uses light beams emitted from one prescribed light emitting point as light beams for synchronization detection, regardless of the mode set by the setting unit, when synchronization detection is performed before the writing of the image data is started.

公开(公告)号：US20180095379A1

公开(公告)日：2018-04-05

申请号：US15718558

申请日：2017-09-28

Applicant: KYOCERA Document Solutions Inc.

Inventor： Ryotaro TODOKORO

IPC: B41J2/385

CPC classification number: G03G15/0409 ,  G03G15/04036

Abstract: An adjustment method of an optical scanning device, in which an uppermost position at an incident surface of the image forming lens, through which a light beam being deflected and scanned passes, and a lowermost position at the incident surface of the image forming lens, through which a light beam being deflected and scanned passes, are detected in a height direction perpendicular to the main scanning direction in an effective range corresponding to a latent image formation target range on the scanning target surface, and a center height between the uppermost position and the lowermost position is allowed to approximately coincide with a height of a bus line of the image forming lens at the incident surface of the image forming lens.

公开(公告)号：US20190302446A1

公开(公告)日：2019-10-03

申请号：US16301175

申请日：2017-09-20

Applicant: KYOCERA Document Solutions Inc.

Inventor： Ryotaro TODOKORO

IPC: G02B26/12 ,  H05K5/03 ,  H04N1/113 ,  G03G15/043

Abstract: An optical scanning device includes a casing (31). The casing (31) can be stacked in a plurality of stages in a state in which a lid member (32) has been removed, and includes a connection leg part (31e) extending from a predetermined position of the outside surface of a sidewall part (31b) to a lower side of a lower surface of the casing (31), and the connection leg part (31e) is provided with an engaged part (31g) for connection which is engaged with an engaging part (31d) formed at a sidewall part (31b) of another casing (31) when the casing (31) is stacked on an upper side of the other casing (31).

公开(公告)号：US20190129324A1

公开(公告)日：2019-05-02

申请号：US16167621

申请日：2018-10-23

Applicant: KYOCERA Document Solutions Inc.

Inventor： Ryotaro TODOKORO

IPC: G03G15/043 ,  G02B26/08 ,  G02B26/12

Abstract: An optical scanning device includes a correction mechanism that rotates a synchronization detection mirror around a sub-scanning axis in accordance with a change in the temperature of a casing, wherein the correction mechanism includes a fixing support part provided to the casing and fixing the synchronization detection mirror thereto, and a first adhesive part and a second adhesive part respectively provided at one end side and the other end side of the synchronization detection mirror in a width direction perpendicular to a sub-scanning direction and serving as adhesives for allowing the synchronization detection mirror to adhere to the fixing support part. The correction mechanism is configured to rotate the synchronization detection mirror around the sub-scanning axis due to a difference between of thermal deformation amounts of the first adhesive part and the second adhesive part in a thickness direction when the temperature inside the casing has changed.

公开(公告)号：US20160248931A1

公开(公告)日：2016-08-25

申请号：US15052128

申请日：2016-02-24

Applicant: KYOCERA Document Solutions Inc.

Inventor： Ryotaro TODOKORO

IPC: H04N1/024 ,  H04N1/06 ,  G02B26/12 ,  H04N1/047

CPC classification number: H04N1/02481 ,  G02B26/127 ,  H04N1/0249 ,  H04N1/0473 ,  H04N1/06 ,  H04N2201/0094

Abstract: An optical scanning device includes a light source that emits light, a deflector that deflects and scans the light emitted from the light source in a main scanning direction, a housing, a synchronization detection sensor, and a sensor board. The synchronization detection sensor is mounted in the housing, detects scanning light from the deflector, and outputs a write timing reference signal of image data. The sensor board is mounted with the synchronization detection sensor. The aforementioned sensor board is formed with a light transmitting hole for allowing a part of the scanning light to pass therethrough when an incident position of the scanning light for a light receiving surface coincides with a center position of the aforementioned light receiving surface in a sub-scanning direction on an extension line of a center line of the light receiving surface of the aforementioned synchronization detection sensor in the sub-scanning direction.

Abstract translation: 光学扫描装置包括发光的光源，在主扫描方向偏转和扫描从光源发射的光的偏转器，壳体，同步检测传感器和传感器板。 同步检测传感器安装在壳体中，检测来自偏转器的扫描光，并输出图像数据的写定时基准信号。 传感器板安装有同步检测传感器。 上述传感器板形成有用于允许一部分扫描光通过的透光孔，当光接收表面的扫描光的入射位置与副光束的上述光接收表面的中心位置一致时， 在上述同步检测传感器的受光面的中心线的延伸线上沿副扫描方向扫描方向。