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公开(公告)号：US20230033875A1
公开(公告)日：2023-02-02
申请号：US17814030
申请日：2022-07-21
Applicant: KYOCERA Document Solutions Inc.
Inventor： Takuya MIYAMOTO , Kanako MORIMOTO , Rui HAMABE , Shiro KANEKO , Naomichi HIGASHIYAMA
Abstract: A feature-amount extraction unit generates a base feature-map group constituted by a plurality of base feature maps from an input image, applies a plurality of statistic calculations to the base feature maps in the base feature-map group, and generates a plurality of types of statistic maps. The inference unit derives inference results of segmentation for inference inputs based on the plurality of statistic maps. Each of the plurality of types of statistic calculations described above is processing of calculating a statistic with a specific window size and a specific calculation formula, and the plurality of types of statistic calculations are different from each other in at least either one of the window size and the calculation formula.
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公开(公告)号：US20230034236A1
公开(公告)日：2023-02-02
申请号：US17814322
申请日：2022-07-22
Applicant: KYOCERA Document Solutions Inc.
Inventor： Koji SATO , Hiroka ITANI , Shiro KANEKO , Naomichi HIGASHIYAMA
IPC: G06T7/00 , G06V10/22 , G06V10/44 , G06V10/98 , G06V10/771
Abstract: An abnormality detection unit detects an abnormal object in target images repeatedly acquired. An abnormality type selection unit selects, for each of the target images, an abnormality type of the abnormal object from a plurality of specific abnormality types based on values of at least two basic feature amounts. A feature amount monitoring unit monitors the values of the basic feature amounts and a value of an auxiliary feature amount corresponding to the abnormality type currently selected by the abnormality type selection unit. An adjustment processing unit executes an adjustment process corresponding to the auxiliary feature amount being monitored by the feature amount monitoring unit. The abnormality type selection unit changes the abnormality type to be selected, in accordance with the change in the values of the basic feature amounts mentioned above.
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Patent Agency Ranking
公开(公告)号：US20210041802A1
公开(公告)日：2021-02-11
申请号：US16985151
申请日：2020-08-04
Applicant: KYOCERA Document Solutions Inc.
Inventor： Tamotsu SHIMIZU , Mitsuhiro HASHIMOTO , Takahiro OKUBO , Kazuhiro NAKACHI , Shiro KANEKO
Abstract: An image forming apparatus includes an image forming portion, a high-voltage generation circuit, a current detection portion and a control portion. The image forming portion includes an image carrying member, a charging device, an exposure device and a developing device which includes a developer carrying member for carrying a developer including a carrier and a toner. The control portion can perform a development ghost prediction mode that includes a step of measuring the amount of charge of the toner within the developing device at the time of non-image formation, a step of measuring, as a carrier current, the direct-current component of a development current when the amount of development of the toner is 0 [mg/cm2] and a step of estimating the level of occurrence of development ghost and the cause of occurrence based on the amount of charge of the toner and the carrier current which are measured.
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公开(公告)号：US20220075304A1
公开(公告)日：2022-03-10
申请号：US17470804
申请日：2021-09-09
Applicant: KYOCERA Document Solutions Inc.
Inventor： Shiro KANEKO , Hiroka ITANI
Abstract: An image forming apparatus includes an image carrier, a developing device, a voltage applier, a current detector, a weight detector, and a control device. The control device acts as a first measurer, a second measurer, and an estimator. The first measurer acquires a toner use amount indicating weight per unit area, of the toner that has migrated from the developing agent carrier to the image carrier, according to a detection result provided by the weight detector. The second measurer acquires the developing current from the current detector. The estimator calculates a value of decision coefficient, obtained by dividing variance of an estimated value in a regression model between the toner use amount and the developing current, by variance of a sample value, and estimates deterioration status of the toner, according to the value of the decision coefficient.
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公开(公告)号：US20220075285A1
公开(公告)日：2022-03-10
申请号：US17470866
申请日：2021-09-09
Applicant: KYOCERA Document Solutions Inc.
Inventor： Shiro KANEKO , Hiroka ITANI
IPC: G03G15/06 , G03G15/095
Abstract: An image forming apparatus includes an image carrier, a developing device, a voltage applier, a current detector, a cleaning blade, and a control device. The control device acts as a measurer and an estimator. The measurer changes the DC bias to a first value and a second value, and acquires a first magnitude of the developing current corresponding to the first value, and a second magnitude of the developing current corresponding to the second value, from the current detector. The estimator calculates a current ratio between the first magnitude and the second magnitude, and estimates deterioration status of the cleaning blade, according to the value of the current ratio.
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公开(公告)号：US20210263442A1
公开(公告)日：2021-08-26
申请号：US17178577
申请日：2021-02-18
Applicant: KYOCERA Document Solutions Inc.
Inventor： Tamotsu SHIMIZU , Kazunori TANAKA , Kanako MORIMOTO , Shiro KANEKO
Abstract: An image forming apparatus includes a plurality of image forming units, a developing voltage power supply, a current detection unit, and a control unit. The image forming units form an image by superimposing a toner image of a same color and a same type, and substantially same development conditions are set to evenly divide an image density among the image forming units. The control unit detects whether there is an anomaly in the image forming unit based on detecting a DC component of developing current, being either of current flowing through a non-exposed portion of an image carrier during image formation, and current flowing through an exposed portion of the image carrier. When an anomaly is detected in any image forming unit, the control unit inhibits use of the image forming unit, and resets the development conditions to evenly divide an image density among the usable image forming units.
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公开(公告)号：US20210041808A1
公开(公告)日：2021-02-11
申请号：US16984788
申请日：2020-08-04
Applicant: KYOCERA Document Solutions Inc.
Inventor： Tamotsu SHIMIZU , Takahiro OKUBO , Mitsuhiro HASHIMOTO , Kazuhiro NAKACHI , Shiro KANEKO
Abstract: An image forming apparatus includes an image forming portion, a high-voltage generation circuit, a current detection portion and a control portion. The image forming portion includes an image carrying member, a charging device, an exposure device and a developing device which includes a developer carrying member for carrying a two-component developer. The control portion can perform a transfer memory prediction mode that includes a step of estimating, when a first reference image is formed, the level of occurrence of transfer memory based on the direct-current component of a development current flowing through the developer carrying member and a step of measuring, when the measured direct-current component of the development current is larger than a predetermined value, the amount of charge of the toner within the developing device and estimating the cause of occurrence of the transfer memory based on the measured amount of charge of the toner.
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