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公开(公告)号：US12291421B2
公开(公告)日：2025-05-06
申请号：US17808729
申请日：2022-06-24
Applicant: KONICA MINOLTA, INC.
Inventor： Yasuhiro Ishihara , Toshikazu Higashi , Masahiro Kamiya , Shigetaka Kato , Katsuhide Sakai
Abstract: An image forming apparatus includes: a sheet feeding conveyor that feeds and conveys a recording medium to a conveyance path; an image former that performs image formation on the recording medium; a medium sensor that is disposed on an upstream side of the recording medium from the image former on the conveyance path and measures one or more sheet physical properties regarding the recording medium conveyed; a first hardware processor that determines a type of the recording medium on a basis of the sheet physical properties measured by the medium sensor; a second hardware processor that determines conveyance performance for the recording medium; and a third hardware processor that determines whether or not to perform the image formation on a basis of the conveyance performance in a case where the type of the recording medium determined by the first hardware processor is a type out of product specifications.
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公开(公告)号：US10168651B2
公开(公告)日：2019-01-01
申请号：US15914277
申请日：2018-03-07
Applicant: Konica Minolta, Inc.
Inventor： Shigetaka Kato , Seiichi Kirikubo , Yutaka Yamamoto , Naoto Sugaya , Nobuhiro Matsuo
Abstract: An image forming apparatus: acquires, before start of current supply to electric elements including heater, information indicating rated power of the heater and total consumption power of the electric elements excluding the heater; subtracts the total consumption power from upper power limit of the apparatus, and calculates maximum power not exceeding the rated power and remaining power thus subtracted; obtains duty ratio based on assumption of current supply corresponding to the maximum power according to pulse modulation, and determines whether the duty ratio falls within predetermined range; and controls, when the duty ratio falls within the range, drive circuit to supply alternating current by pulse modulation method, and when the duty ratio falls outside the range, to supply the alternating current by phase control method that temporarily interrupts the supply of the alternating current to the heater in half cycles of the alternating current.
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公开(公告)号：US10095163B2
公开(公告)日：2018-10-09
申请号：US15623652
申请日：2017-06-15
Applicant: Konica Minolta, Inc.
Inventor： Shigetaka Kato , Natsuyo Higashi , Takahiro Tsujimoto , Hirotada Seki , Yoshihiko Hikari
IPC: G03G15/20
Abstract: An image forming apparatus that includes a plurality of heaters and in which a combination of each of the heaters to be turned on can be changed includes a current detection unit including a through-type current transformer in which current supply lines are inserted into or wound around a through hole; a turn-on information acquisition unit that acquires information on a turn-on mode indicating the combination of each of the heaters to be turned on as turn-on information; a connection information acquisition unit that acquires connection information on additive polarity connection and subtractive polarity connection of the heaters, wherein the current supply lines include an additive polarity connection line, and a subtractive polarity connection line; and an energization information acquisition unit that acquires information on an energized state of the plurality of heaters as energization information, based on the turn-on information, the connection information, and a current value.
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公开(公告)号：US20140294413A1
公开(公告)日：2014-10-02
申请号：US14242318
申请日：2014-04-01
Applicant: Konica Minolta, Inc.
Inventor： Takafumi TANAKA , Shigetaka Kato , Satoru Sasaki , Natsuyo Higashi , Hirotada Seki , Hiroshi Eguchi
CPC classification number: G03G15/5058 , G03G21/08
Abstract: After a toner image is transferred from a photoreceptor to an intermediate transfer belt, a surface of the photoreceptor is destaticized by a static eraser including a plurality of light emitting elements arranged in an axial direction of the photoreceptor. A first density sensor and a second density sensor for detecting densities of toner applied to the intermediate transfer belt are provided at a position where a large quantity of light from the static eraser is applied to the photoreceptor surface and a position where a small quantity of light from the static eraser is applied to the photoreceptor surface. In a case where a density difference between the detected toner densities exceeds a predetermined threshold value, a destaticization controller carries out an additional destaticizing operation by the static eraser.
Abstract translation: 在将调色剂图像从感光体转印到中间转印带之后，感光体的表面通过包括沿感光体的轴向布置的多个发光元件的静电擦除器去静电。 用于检测施加到中间转印带的调色剂的密度的第一密度传感器和第二密度传感器设置在将来自静电擦除器的大量光施加到感光体表面的位置和少量光 从静态橡皮擦应用到感光体表面。 在检测到的调色剂浓度之间的浓度差超过预定阈值的情况下，静电除去控制器执行静电除尘器的附加去静电操作。
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公开(公告)号：US10787001B2
公开(公告)日：2020-09-29
申请号：US16295081
申请日：2019-03-07
Applicant: Konica Minolta, Inc.
Inventor： Yutaka Yamamoto , Tatsuya Eguchi , Shigetaka Kato , Taku Kimura
Abstract: An image forming apparatus including a polygon mirror that deflects a light beam, the image forming apparatus includes: an optical sensor arranged such that the light beam deflected by the polygon mirror enters the optical sensor; and a hardware processor that measures an output level of the optical sensor and calculates, as a remaining life of the polygon mirror, an operation time of the polygon mirror to when the output level becomes a threshold value in a case of assuming that the output level ongoingly changes at a rate of change over time that is a change amount of the output level per unit operation time of the polygon mirror, using the measured output level.
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Patent Agency Ranking
6.发明授权Image forming apparatus capable of accurately estimating power consumption level 有权能够精确地估计功耗水平的图像形成装置公开(公告)号：US09207607B2
公开(公告)日：2015-12-08
申请号：US13927170
申请日：2013-06-26
Applicant: KONICA MINOLTA, INC.
Inventor： Natsuyo Higashi , Shigetaka Kato , Hideki Nakamura , Katsufumi Suzuki , Hirotada Seki
CPC classification number: G03G15/5004 , G03G15/2003 , G03G15/2039 , G03G15/2042 , G03G15/205 , G03G2215/2016 , G03G2215/2032
Abstract: An image forming apparatus that heat-fixes a toner image onto a recording sheet passing through a fixing nip formed by pressing a pressurizing member against a heating rotational body heated by a heater, comprising: a storage unit storing a basic power consumption level of the heater determined in advance in a situation where inflow of inrush current to the heater is not occurring; an estimation unit calculating an estimated power consumption level of the heater by estimating an increase in the power consumption level, with respect to the basic power consumption level, brought about by inflow of inrush current to the heater; and an output unit outputting the estimated power consumption level. The heater switches between a heating state of receiving power supply and a non-heating state of not receiving power supply. The increase is estimated according to a duration of a non-heating state immediately preceding the heating state.
Abstract translation: 一种图像形成装置，其将调色剂图像热定影到通过将加压构件压靠在由加热器加热的加热旋转体上而形成的定影夹持部的记录片材上，所述图像形成装置包括：存储单元，其存储加热器的基本功率消耗水平 在不发生涌入加热器的浪涌电流的情况下，预先确定; 估计单元，通过估计相对于通过流入加热器的涌入电流而引起的基本功耗水平来估计功耗水平的增加来计算加热器的估计功耗水平; 以及输出单元，输出所估计的功耗水平。 加热器在接收电源的加热状态和不接收电源的非加热状态之间切换。 根据加热状态之前的非加热状态的持续时间来估计增加量。
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公开(公告)号：US11880153B2
公开(公告)日：2024-01-23
申请号：US17685035
申请日：2022-03-02
Applicant: Konica Minolta, Inc.
Inventor： Masahiro Kamiya , Toshikazu Higashi , Yasuhiro Ishihara , Shigetaka Kato , Katsuhide Sakai
CPC classification number: G03G15/5016 , H04N1/00384 , H04N1/00411
Abstract: An image forming device includes: a sheet feeder that feeds a sheet; a controller that: discriminates a sheet type of the sheet, and receives a user input to specify a sheet type; and an image forming device that has two setting modes including an automatic discrimination mode in which an image is formed based on the discriminated sheet type and a user specified mode in which an image is formed based on the sheet type specified by the user input. The controller automatically switches one of the two setting modes to the other based on a defined condition.
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公开(公告)号：US20220283532A1
公开(公告)日：2022-09-08
申请号：US17685035
申请日：2022-03-02
Applicant: Konica Minolta, Inc.
Inventor： Masahiro Kamiya , Toshikazu Higashi , Yasuhiro Ishihara , Shigetaka Kato , Katsuhide Sakai
Abstract: An image forming device includes: a sheet feeder that feeds a sheet; a controller that: discriminates a sheet type of the sheet, and receives a user input to specify a sheet type; and an image forming device that has two setting modes including an automatic discrimination mode in which an image is formed based on the discriminated sheet type and a user specified mode in which an image is formed based on the sheet type specified by the user input. The controller automatically switches one of the two setting modes to the other based on a defined condition.
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公开(公告)号：US09188925B2
公开(公告)日：2015-11-17
申请号：US14242318
申请日：2014-04-01
Applicant: Konica Minolta, Inc.
Inventor： Takafumi Tanaka , Shigetaka Kato , Satoru Sasaki , Natsuyo Higashi , Hirotada Seki , Hiroshi Eguchi
CPC classification number: G03G15/5058 , G03G21/08
Abstract: After a toner image is transferred from a photoreceptor to an intermediate transfer belt, a surface of the photoreceptor is destaticized by a static eraser including a plurality of light emitting elements arranged in an axial direction of the photoreceptor. A first density sensor and a second density sensor for detecting densities of toner applied to the intermediate transfer belt are provided at a position where a large quantity of light from the static eraser is applied to the photoreceptor surface and a position where a small quantity of light from the static eraser is applied to the photoreceptor surface. In a case where a density difference between the detected toner densities exceeds a predetermined threshold value, a destaticization controller carries out an additional destaticizing operation by the static eraser.
Abstract translation: 在将调色剂图像从感光体转印到中间转印带之后，感光体的表面通过包括沿感光体的轴向布置的多个发光元件的静电擦除器去静电。 用于检测施加到中间转印带的调色剂的密度的第一密度传感器和第二密度传感器设置在将来自静电擦除器的大量光施加到感光体表面的位置和少量光 从静态橡皮擦应用到感光体表面。 在检测到的调色剂浓度之间的浓度差超过预定阈值的情况下，静电除去控制器执行静电除尘器的附加去静电操作。
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10.发明申请IMAGE FORMING APPARATUS CAPABLE OF ACCURATELY ESTIMATING POWER CONSUMPTION LEVEL 有权图像形成设备，能够精确估算耗电量公开(公告)号：US20140003830A1
公开(公告)日：2014-01-02
申请号：US13927170
申请日：2013-06-26
Applicant: KONICA MINOLTA, INC.
Inventor： Natsuyo Higashi , Shigetaka Kato , Hideki Nakamura , Katsufumi Suzuki , Hirotada Seki
CPC classification number: G03G15/5004 , G03G15/2003 , G03G15/2039 , G03G15/2042 , G03G15/205 , G03G2215/2016 , G03G2215/2032
Abstract: An image forming apparatus that heat-fixes a toner image onto a recording sheet passing through a fixing nip formed by pressing a pressurizing member against a heating rotational body heated by a heater, comprising: a storage unit storing a basic power consumption level of the heater determined in advance in a situation where inflow of inrush current to the heater is not occurring; an estimation unit calculating an estimated power consumption level of the heater by estimating an increase in the power consumption level, with respect to the basic power consumption level, brought about by inflow of inrush current to the heater; and an output unit outputting the estimated power consumption level. The heater switches between a heating state of receiving power supply and a non-heating state of not receiving power supply. The increase is estimated according to a duration of a non-heating state immediately preceding the heating state.
Abstract translation: 一种图像形成装置，其将调色剂图像热定影到通过将加压构件压靠在由加热器加热的加热旋转体上而形成的定影夹持部的记录片材上，所述图像形成装置包括：存储单元，其存储加热器的基本功率消耗水平 在不发生涌入加热器的浪涌电流的情况下，预先确定; 估计单元，通过估计相对于通过流入加热器的涌入电流而引起的基本功耗水平来估计功耗水平的增加来计算加热器的估计功耗水平; 以及输出单元，输出所估计的功耗水平。 加热器在接收电源的加热状态和不接收电源的非加热状态之间切换。 根据加热状态之前的非加热状态的持续时间来估计增加量。
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