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公开(公告)号：US20180335821A1
公开(公告)日：2018-11-22
申请号：US15972522
申请日：2018-05-07
Applicant: KONICA MINOLTA, INC.
Inventor： Masahiro Kamiya , Takeshi Tamada , Yoshihito Sasamoto , Katsuyuki Ikuta , Shota Igo
Abstract: An information processing apparatus includes a first device and a second device, the first device includes a first power receiving member, a first switcher, a first power supply circuit, a failure detector, a second switcher, and a first electrical load, and the second device includes a second power receiving member, a second power supply circuit, a distributor, a third switcher, a second electrical load, and a hardware processor.
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公开(公告)号：US09823609B2
公开(公告)日：2017-11-21
申请号：US14869153
申请日：2015-09-29
Applicant: KONICA MINOLTA, INC.
Inventor： Takeshi Tamada , Mikiyuki Aoki , Seiichi Kirikubo , Akinori Kimata
CPC classification number: G03G15/5004 , G03G15/2039 , G03G15/205 , G03G15/80 , G03G2215/0132
Abstract: An image forming apparatus includes: a fixing part including a heater, and a first temperature detection part configured to detect the temperature of the heater; a chopper circuit including a reactor, a freewheeling element, and a switching element, the chopper circuit being configured to switch an input direct current on and off in a specified duty cycle by using the switching element and to supply the current to the heater; and a control part configured to control the duty cycle based on a detection result obtained by the first temperature detection part, as well as to control a switching frequency of the switching element based on an operation mode of the image forming apparatus.
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公开(公告)号：US09477213B2
公开(公告)日：2016-10-25
申请号：US13911359
申请日：2013-06-06
Applicant: KONICA MINOLTA, INC.
Inventor： Masahiro Kamiya , Takeshi Tamada
CPC classification number: G05B13/00 , G03G15/6582 , G03G2215/00814
Abstract: A sheet processing apparatus is described which is used to process a sheet transferred from an image forming apparatus such as a copying machine. A sheet processing apparatus is provided with a punching unit which cuts off part of a sheet conveyed along a conveying route, and a humidifying unit located on this conveying route in the upstream side of the punching unit and configured to humidify a predetermined area which is selected from the entire area of the sheet and includes punch areas to be cut off from the conveyed sheet by the punching unit. The cutting wastes can thereby be electrostatically discharged without leaving the sheet excessively wet.
Abstract translation: 描述了用于处理从诸如复印机的图像形成装置传送的片材的片材处理装置。 片材处理装置设置有冲切单元，该冲切单元切断沿输送路径输送的薄片的一部分，以及加湿单元，位于冲压单元的上游侧的该输送路径上，并且被配置为加湿所选择的预定区域 从片材的整个区域，并且包括通过冲压单元从被输送的片材切断的冲压区域。 因此，切割废料可以静电排出，而不会使纸张过度湿润。
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公开(公告)号：US09063490B2
公开(公告)日：2015-06-23
申请号：US14470375
申请日：2014-08-27
Applicant: KONICA MINOLTA, INC.
Inventor： Takeshi Tamada , Satoshi Ogata , Kenji Izumiya , Hiroshi Oyama , Masayuki Watanabe
CPC classification number: G03G15/2053 , G03G15/50
Abstract: A fixing apparatus includes an upper pressure roller, a fixing belt, a lower pressure roller which cooperates with the upper pressure roller and the fixing belt for forming a fixing nip portion which holds and conveys a sheet with a toner image therebetween; a drive motor which rotates the lower pressure roller; a plurality of motors each of which is capable of generating a braking force in the direction to hinder rotation of the upper pressure roller and an assist force in the direction to assist rotation of the upper pressure roller; a torque generation unit which generate an effective braking force in the direction to hinder rotation of the fixing side member as a combination of the braking and assist forces; and a control unit which switches the motor used to generate the braking force among the plurality of motors in accordance with a predetermined condition.
Abstract translation: 定影装置包括上压辊，定影带，与上压辊和定影带配合的下压辊，用于形成定影夹持部分，该定影夹持部分保持并输送具有调色剂图像的片材; 旋转下压辊的驱动马达; 多个电动机中的每一个能够产生阻碍上压辊旋转的方向的制动力和帮助上压辊旋转的方向的辅助力; 扭矩产生单元，其在制动和辅助力的组合时沿阻止固定侧构件的旋转的方向产生有效的制动力; 以及控制单元，其根据预定条件在多个电动机之间切换用于产生制动力的电动机。
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Patent Agency Ranking
公开(公告)号：US11418672B2
公开(公告)日：2022-08-16
申请号：US16998408
申请日：2020-08-20
Applicant: Konica Minolta, Inc.
Inventor： Takahiro Tsujimoto , Takeshi Tamada , Tianhua Xu , Hiroaki Takatsu , Katsuyuki Ikuta , Akihiro Hayashi
IPC: H04N1/00
Abstract: An image forming apparatus, includes: a media sensor that detects a sheet type; a fixer that fixes the image on a sheet; a storage that stores a fixing temperature for each sheet type; and a hardware processor that controls power supplied to the fixer by pulse-width modulation (PWM) control and controls a temperature of the fixer to the fixing temperature corresponding to the sheet type detected by the media sensor.
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公开(公告)号：US20210371223A1
公开(公告)日：2021-12-02
申请号：US17333432
申请日：2021-05-28
Applicant: Konica Minolta, Inc.
Inventor： Katsuyuki Ikuta , Hiroaki Takatsu , Takeshi Tamada , Takahiro Tsujimoto , Akihiro Hayashi
Abstract: A recording medium conveyance device includes a storage, a conveyer that conveys a conveyed object, an ultrasonic sensor that outputs a value indicating an attenuation amount of an ultrasonic wave caused by the conveyed object, and a hardware processor. The hardware processor executes a type detection process of detecting a type of the conveyed object based on output of the ultrasonic sensor and storing the type in the storage and an overlay detection process of detecting whether the conveyed object is in an overlay state in which a gap is present based on output of the ultrasonic sensor, and switches to either one of the type detection process and the overlay detection process. The hardware processor executes the type detection process when the type is not stored in the storage and executes the overlay detection process when the type is stored in the storage.
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公开(公告)号：US20190079435A1
公开(公告)日：2019-03-14
申请号：US16113411
申请日：2018-08-27
Applicant: KONICA MINOLTA, INC.
Inventor： Takeshi Tamada , Hiroaki Takatsu , Takahiro Tsujimoto , Tianhua Xu
CPC classification number: G03G15/205 , G03G15/80
Abstract: An image forming apparatus includes a heater, a first heater drive circuit which rectifies AC power from an AC power supply and subjects a current to be conducted to the heater to PWM control, and a second heater drive circuit which allows conduction from the AC power to the heater. The image forming apparatus further includes a switching circuit which sets a drive circuit which is to drive the heater to any one of the first heater drive circuit and the second heater drive circuit and a control unit which controls switching between the drive circuits by the switching circuit.
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公开(公告)号：US09703240B2
公开(公告)日：2017-07-11
申请号：US15227369
申请日：2016-08-03
Applicant: Konica Minolta, Inc.
Inventor： Seiichi Kirikubo , Mikiyuki Aoki , Akinori Kimata , Takeshi Tamada
IPC: G03G15/20
CPC classification number: G03G15/2039
Abstract: A fuser control device includes: a fusing portion having a heater; a chopper portion including a reactor, a free-wheeling element, and a switching element; and a processor portion being configured to implement a first current control during an implementation period, the implementation period including a first time interval and a second time interval, the implementation period being longer than a commercial power period, the first current control for transferring a control signal having a predetermined duty ratio to the switching element during the first time interval and transferring a control signal having a 100% duty ratio to the switching element during the second time interval.
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19.发明授权Fixing apparatus for fixing images formed on sheet and image forming apparatus provided with this fixing apparatus 有权固定装置，用于固定形成在具有该定影装置的纸张和图像形成装置上形成的图像公开(公告)号：US09335677B2
公开(公告)日：2016-05-10
申请号：US14477745
申请日：2014-09-04
Applicant: KONICA MINOLTA, INC.
Inventor： Satoshi Ogata , Takeshi Tamada , Kenji Izumiya , Hiroshi Oyama , Masayuki Watanabe
CPC classification number: G03G15/2017 , G03G2215/2045
Abstract: A fixing apparatus comprises a fixing nip width adjustment unit configured to adjust the fixing nip width of a fixing nip portion; a braking force generation motor configured to generate an effective braking force in the direction to hinder rotation of an upper pressure roller; and a control unit configured to perform restore control for rotating the upper pressure roller and a lower pressure roller by driving a drive motor and speed keeping control for keeping the rotational speed of the braking force generation motor no higher than a predetermined speed during the restore control in a non-fixing period in which the fixing nip width adjustment unit is controlled to decrease the fixing nip width smaller than in a fixing period and a braking force is applied to the fixing side member by the braking force generation motor.
Abstract translation: 定影装置包括定影夹持宽度调节单元，其被配置为调整定影夹持部的定影夹持宽度; 制动力产生电动机，其构造成在阻止上压辊的旋转的方向上产生有效的制动力; 以及控制单元，其被配置为执行恢复控制，以通过驱动驱动电机来旋转上压力辊和下压力辊，并且在恢复控制期间保持用于将制动力发电电动机的转速保持在预定速度以上的速度保持控制 在定影夹持宽度调节单元被控制以使定影夹持宽度小于定影周期的非固定时段中，并且制动力产生马达对固定侧构件施加制动力。
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