公开(公告)号：US11708231B2

公开(公告)日：2023-07-25

申请号：US17242191

申请日：2021-04-27

Applicant: Konica Minolta, Inc.

Inventor： Kazutoshi Yoshimura ,  Satoshi Ogata ,  Masayuki Watanabe ,  Hidenori Mine

IPC: B65H7/02 ,  B65H5/06 ,  B65H7/20

CPC classification number: B65H7/02 ,  B65H5/062 ,  B65H7/20 ,  B65H2511/13

Abstract: A paper sheet sensing device includes: a sheet thickness sensor that includes a reference member and a displacement sensor, and senses a sheet thickness of a conveyed recording medium by bringing the reference member into contact with the recording medium and sensing a position of a height of the reference member with the displacement sensor, the position of the height having changed with the recording medium; a first attacher to which the sheet thickness sensor is attached; a conveyor that nips and conveys the recording medium, and is disposed adjacent to the sheet thickness sensor at a predetermined distance equal to or shorter than a length of the recording medium being conveyed, in a conveyance direction of the recording medium; and a displacement preventer that prevents a change in an output of the displacement sensor due to a shift of a relative position of the height of the reference member.

公开(公告)号：US11591174B2

公开(公告)日：2023-02-28

申请号：US16660286

申请日：2019-10-22

Applicant: Konica Minolta, Inc.

Inventor： Yumiko Izumiya ,  Satoshi Ogata ,  Kazutoshi Yoshimura

IPC: B65H7/02 ,  G03G15/00

Abstract: A physical property detecting device, includes: an insertion part that includes an insertion port through which a sheet is inserted and removed; a first physical property detector that detects a first physical property of the sheet in a non-nipping state; and a second physical property detector that nips the sheet and detects a second physical property of the sheet in a nipping state, wherein the first physical property detector and the second physical property detector are disposed at different positions in an insertion and removal direction of the sheet.

公开(公告)号：US09703238B2

公开(公告)日：2017-07-11

申请号：US15016849

申请日：2016-02-05

Applicant: Konica Minolta, Inc.

Inventor： Kenji Izumiya ,  Kiyoto Kojima ,  Satoshi Ogata ,  Hirokatsu Kodama

IPC: G03G15/00 ,  G03G15/20

CPC classification number: G03G15/2028 ,  G03G15/2039 ,  G03G15/6538 ,  G03G15/6588 ,  G03G15/6591

Abstract: An image forming system includes: an image forming apparatus that forms an image on a sheet; one or more sheet carrying devices successively disposed on the downstream side of the image forming apparatus; and a control device that controls the image forming apparatus and the one or more sheet carrying devices based on a job that designates a page configuration containing a page order and sheet types, wherein the sheet carrying device includes a bypass conveyance path along which the sheet output from an upstream device is conveyed toward a downstream device, and a sheet tray unit that temporarily stores the sheet output from the upstream device and discharges the sheet toward the bypass conveyance path, and the control device divides the job into sheet types and determines a printing order of the divided sheet types and sheet types to be stored in the sheet carrying device.

公开(公告)号：US20170082953A1

公开(公告)日：2017-03-23

申请号：US15267761

申请日：2016-09-16

Applicant: Konica Minolta, Inc.

Inventor： Satoshi Ogata ,  Yumiko Izumiya ,  Jun Onishi

IPC: G03G15/00

CPC classification number: G03G21/0005 ,  G03G15/1615 ,  G03G15/5008 ,  G03G15/505 ,  G03G2215/00075

Abstract: An image forming apparatus includes an image carrier, an image carrier driver which rotates the image carrier, a rotation detector which detects rotation of the image carrier, a rotary member in contact with the image carrier, a rotary member driver which rotates the rotary member, a first controller which controls the rotary member driver, and a second controller. The second controller controls the image carrier driver based on an output of the rotation detector and also controls the image carrier driver in a manner which attenuates a fluctuation component at a specific frequency. When the first controller changes a surface velocity of the rotary member, the second controller controls the image carrier driver in a manner that attenuates a fluctuation component at a specific frequency related to the changed surface velocity of the rotary member.

公开(公告)号：US09250587B2

公开(公告)日：2016-02-02

申请号：US14294432

申请日：2014-06-03

Applicant: KONICA MINOLTA, INC.

Inventor： Takeshi Tamada ,  Kenji Izumiya ,  Satoshi Ogata ,  Masahito Takano

IPC: G03G15/20

CPC classification number: G03G15/2064 ,  G03G15/2028 ,  G03G2215/2032 ,  G03G2215/2045

Abstract: An image forming apparatus comprises a drive motor configured to rotate the lower pressure roller, a torque generation unit for generating a braking force in the direction to hinder rotation of a fixing belt in order to adjust the differential speed between the surface speed of the fixing belt and the surface speed of the lower pressure roller, and a control unit for adjusting the braking force generated by the torque generation unit. The control unit adjusts the braking force generated by the torque generation unit to decrease if the rotational torque of the drive motor is larger than a predetermined target torque, and increase if the rotational torque of the drive motor is smaller than the predetermined target torque.

Abstract translation: 图像形成装置包括：驱动电动机，其被配置为使下压力辊旋转;扭矩产生单元，用于在阻止定影带旋转的方向上产生制动力，以便调节定影带的表面速度之间的差速 以及下压辊的表面速度，以及用于调整由转矩产生单元产生的制动力的控制单元。 如果驱动电机的旋转转矩大于预定目标转矩，则控制单元调整由转矩产生单元产生的制动力，如果驱动电动机的旋转转矩小于预定目标转矩，则增大。

公开(公告)号：US20150160595A1

公开(公告)日：2015-06-11

申请号：US14560327

申请日：2014-12-04

Applicant: Konica Minolta, Inc.

Inventor： Takeshi TAMADA ,  Satoshi Ogata ,  Kenji Izumiya ,  Masatoshi Hitaka

IPC: G03G15/20

CPC classification number: G03G15/2053 ,  G03G15/55

Abstract: An image forming apparatus performs a serviceman call detection mode during its idling time. In this time, a control portion controls upper and lower pressuring rollers to be clamped, controls a driving motor, and controls a change-over mechanism to switch a braking motor off. A torque detection portion detects a torque value Y of the driving motor at this time. The control portion then controls the upper and lower pressuring rollers to be clamped, controls the driving motor, and controls the change-over mechanism to switch the braking motor on. The torque detection portion detects a torque value Z of the driving motor at this time. The control portion subtracts the torque value Y from the torque value Z to calculate a difference value. The control portion determines that the breaking motor is broken down when the difference value does not exceed the threshold value.

Abstract translation: 图像形成装置在其空转时间期间执行维修人员呼叫检测模式。 此时，控制部控制要被夹紧的上压力辊和下压辊，控制驱动电动机，并控制切换机构以切断制动电动机。 此时，转矩检测部检测驱动电动机的转矩值Y. 然后，控制部控制上下加压辊被夹紧，控制驱动电动机，并控制转换机构，使制动电动机接通。 转矩检测部此时检测驱动电动机的转矩值Z。 控制部从转矩值Z中减去转矩值Y来计算差值。 当差值不超过阈值时，控制部分确定断开电动机被分解。

公开(公告)号：US12153366B2

公开(公告)日：2024-11-26

申请号：US18200160

申请日：2023-05-22

Applicant: KONICA MINOLTA, INC.

Inventor： Satoshi Ogata ,  Masashi Sugano

IPC: G03G15/00

Abstract: A recording material conveyance device that can suppress a decrease in productivity when detecting characteristics of the recording material is provided. A recording material conveyance device includes: a first conveyor that constitutes a conveyance route for a recording material; a second conveyor and a third conveyor that branch off from the first conveyor and constitute the conveyance route for the recording material on a downstream side of a recording material conveyance direction of the first conveyor; a first detector that detects recording material characteristics of the recording material disposed in the first conveyor; a second detector that detects the recording material characteristics disposed in the second conveyor; and a controller that stops detection by the second detector and discharges the recording material that is being detected by the second detector when the first detector detects an abnormality in a detection result of the recording material characteristics.

公开(公告)号：US11947298B2

公开(公告)日：2024-04-02

申请号：US17983139

申请日：2022-11-08

Applicant: Konica Minolta, Inc.

Inventor： Satoshi Ogata ,  Atsushi Yamaguchi ,  Kenji Yamamoto ,  Takashi Nara

IPC: G03G15/00

CPC classification number: G03G15/5062 ,  G03G15/6529 ,  G03G15/5029

Abstract: A recording material conveying device includes: a first conveyor that constitutes a conveyance path of a recording material; a second conveyor that branches from the first conveyor and constitutes a conveyance path of the recording material different from the conveyance path of the first conveyor; and a detector that detects recording material characteristics of the recording material, the detector being arranged in the second conveyor on a downstream side in a conveyance direction of the recording material with respect to a branch portion where the first conveyor and the second conveyor branch.

公开(公告)号：US20220177257A1

公开(公告)日：2022-06-09

申请号：US17455115

申请日：2021-11-16

Applicant: KONICA MINOLTA, INC.

Inventor： Satoshi Ogata ,  Yumiko Izumiya ,  Kazutoshi Yoshimura ,  Hiroyuki Maruyama ,  Masashi Sugano ,  Tsuyoshi Yoneyama

IPC: B65H43/08 ,  B65H29/60

Abstract: An image forming apparatus includes a sensor that acquires first and second data groups of paper characteristics by measuring a recording medium; a processor that determines a parameter for controlling at least one of image formation and conveyance of a recording medium on a conveyance path based on the first and second data groups acquired by the sensor; an image former that forms an image on a recording medium conveyed on the conveyance path based on the parameter. The processor compares the first and second paper characteristic data groups, the first paper characteristic data group has been measured at a first time period and the second paper characteristic data group has been measured at a second time period nearer to a present time than the first time period, and the processor controls the image formation based on a the comparison result.

公开(公告)号：US11286125B2

公开(公告)日：2022-03-29

申请号：US16741922

申请日：2020-01-14

Applicant: KONICA MINOLTA, INC.

Inventor： Yumiko Izumiya ,  Satoshi Ogata ,  Kazutoshi Yoshimura ,  Hitoshi Asano ,  Hirotada Seki ,  Akimasa Ishikawa

IPC: B65H5/06 ,  B65H7/02 ,  B65H5/16

Abstract: A measuring device, includes a physical property value detector and a push contact member that pushes to bring a sheet material in contact with the physical property value detector; and further includes a first processor that stops conveyance of the sheet material, pushes to bring the sheet material in contact with the physical property value detector, and detects a physical property value of the sheet material; a second processor that, after having detected the physical property value, cancels the pushing by the push contact member, separates the sheet material from the physical property value detector, and starts conveyance of the sheet material; and a physical property value specifier that specifies the physical property value on a basis of physical property values of a plurality of positions within a surface of the sheet material detected by executing the first processing and the second processing repeatedly.