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公开(公告)号：US20240326447A1
公开(公告)日：2024-10-03
申请号：US18614625
申请日：2024-03-22
Applicant: KYOCERA Document Solutions Inc.
Inventor： Katsuo Mikashima
IPC: B41J2/165 , B41J2/045 , B41J2/21 , B41J29/393
CPC classification number: B41J2/16579 , B41J2/04505 , B41J2/2142 , B41J2029/3935
Abstract: A line sensor includes plural sensor chips and a gap between adjacent two sensor chips. In a test pattern image, a thin line is formed by ink ejected from a nozzle. Further, the line sensor scans the test pattern image on a sheet slanted from a transportation direction of the sheet and generates a test pattern scanned image. An ejection malfunction determination unit determines densities at at least two secondary-scanning-directional positions at a primary-scanning-directional position corresponding to each nozzle in the test pattern scanned image, and determines whether the nozzle is an ejection malfunction nozzle or not on the basis of the determined densities. Here, a slant angle of the sheet is set such that a primary-scanning-directional distance between two positions in the test pattern image corresponding to the two secondary-scanning-directional positions is larger than an arrangement interval of sensor pixels in the sensor chip.
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公开(公告)号：US20240305727A1
公开(公告)日：2024-09-12
申请号：US18599042
申请日：2024-03-07
Applicant: KYOCERA Document Solutions Inc.
Inventor： Katsuo Mikashima , Yuichiro Kurokawa , Yasuyuki Fukunaga
IPC: H04N1/00
CPC classification number: H04N1/0061 , H04N1/00087 , H04N1/00496 , H04N1/00588 , H04N1/00702 , H04N1/00734 , H04N1/00933 , H04N2201/0094
Abstract: An image reading portion includes a light emitting portion and a plurality of photoelectric conversion elements. The light emitting portion emits detection light to a target area extending over a surface of a conveying belt and a pair of off-belt areas outside the conveying belt in a width direction. The image reading portion outputs a plurality of pixel data items. A reference member forms a pair of boundary lines by the difference in reflectance of the detection light at a pair of reference positions in the pair of off-belt areas. A calibration portion identifies data items corresponding to the pair of boundary lines in the plurality of pixel data items obtained by the image reading portion so as to correct reference position data representing a correspondence relationship between the plurality of pixel data items and positions in the width direction.
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公开(公告)号：US20240193391A1
公开(公告)日：2024-06-13
申请号：US18528792
申请日：2023-12-05
Applicant: KYOCERA Document Solutions Inc.
Inventor： Katsuo Mikashima
CPC classification number: G06K15/1878 , G06K15/402
Abstract: An image forming apparatus includes a print device, a first backend communication portion, a second backend communication portion, and an inquiry management portion. The inquiry management portion transmits, when determining that transmission of a permission response is possible, the permission response to a digital frontend via the first backend communication portion. The second backend communication portion receives print data from the digital frontend. The print device executes print processing that is based on the print data when the print data is received from the digital frontend by the second backend communication portion.
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14.发明授权公开(公告)号：US12086665B2
公开(公告)日：2024-09-10
申请号：US18528792
申请日：2023-12-05
Applicant: KYOCERA Document Solutions Inc.
Inventor： Katsuo Mikashima
CPC classification number: G06K15/1878 , G06K15/402
Abstract: An image forming apparatus includes a print device, a first backend communication portion, a second backend communication portion, and an inquiry management portion. The inquiry management portion transmits, when determining that transmission of a permission response is possible, the permission response to a digital frontend via the first backend communication portion. The second backend communication portion receives print data from the digital frontend. The print device executes print processing that is based on the print data when the print data is received from the digital frontend by the second backend communication portion.
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公开(公告)号：US11660884B2
公开(公告)日：2023-05-30
申请号：US17574954
申请日：2022-01-13
Applicant: KYOCERA Document Solutions Inc.
Inventor： Katsuo Mikashima
CPC classification number: B41J11/007 , B41J2/04573 , B41J2/04598 , B41J11/42
Abstract: An image forming apparatus includes a transportation belt, a print engine, and an ejection timing control unit. The transportation belt transports a print sheet. The print engine ejects ink onto the print sheet. The ejection timing control unit adjusts an ink ejection timing of the print engine. The transportation belt includes a flushing opening part. The print engine repeatedly performs ink flushing to the flushing opening part at predetermined timings. Further the ejection timing control unit derives an adjustment amount for the ink ejection timing of the print engine on the basis of: a number of the ink ejection timings in a period from a previous flushing time to a current flushing time, a distance from the flushing opening part for the flushing at the previous flushing time to the flushing opening part for the flushing at the current flushing time, and a print resolution.
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Patent Agency Ranking
公开(公告)号：US11141971B2
公开(公告)日：2021-10-12
申请号：US16780225
申请日：2020-02-03
Applicant: KYOCERA Document Solutions Inc.
Inventor： Katsuo Mikashima
Abstract: An image forming apparatus includes a conveyance part, an image forming part, a sheet detection sensor, a sensor unit, and a controller. The sheet detection sensor, in which a plurality of sensor blocks each with a plurality of sensor elements mounted thereon at specified intervals are arrayed in a sheet width direction, detects an edge position in the sheet width direction on a basis of scanning image data formed by reading of the sheet. The controller is enabled to execute a calibration of inserting, into the scanning image data, interpolation pixels for compensating an error between an edge position detected by the scanning image data and an actual edge position.
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公开(公告)号：US10800164B2
公开(公告)日：2020-10-13
申请号：US16374540
申请日：2019-04-03
Applicant: KYOCERA Document Solutions Inc.
Inventor： Katsuo Mikashima , Kenichi Satake
Abstract: A first storage portion stores, in advance, first reference voltage values respectively for ink ejection portions, the first reference voltage values corresponding to a predetermined first image density value. A second storage portion stores, in advance, voltage values that are different from each other, and measurement values that indicate image densities respectively corresponding to the voltage values. A voltage value calculating portion, at a predetermined change timing for changing image density, calculates second reference voltage values respectively for the ink ejection portions based on the voltage values and the measurement values, the second reference voltage values corresponding to a second image density value that is different from the first image density value. A voltage switching portion switches driving voltages that are applied to the ink ejection portions, from driving voltages having the first reference voltage values to driving voltages having the second reference voltage values.
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18.发明授权公开(公告)号：US10747138B2
公开(公告)日：2020-08-18
申请号：US16382434
申请日：2019-04-12
Applicant: KYOCERA Document Solutions Inc.
Inventor： Katsuo Mikashima
IPC: G03G15/04 , G03G15/043 , H04N1/193 , H04N1/00 , H04N1/60
Abstract: A data acquiring portion acquires a plurality of pieces of second data having different levels depending on amounts of light incident on the light reception portions upon reception of a specific linear light having a specific amount of light. A level acquiring portion acquires a maximum level and a minimum level from among the levels of the plurality of pieces of second data. A characteristic data storage portion preliminarily stores characteristic data that indicates levels of the plurality of pieces of second data. A light amount deriving portion executes a light amount deriving process to derive a set light amount of the linear light based on a threshold, the maximum level, the minimum level, and the characteristic data. A second light emission control portion causes the light emission portion to emit linear light having the set light amount.
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公开(公告)号：US20190317423A1
公开(公告)日：2019-10-17
申请号：US16382434
申请日：2019-04-12
Applicant: KYOCERA Document Solutions Inc.
Inventor： Katsuo Mikashima
IPC: G03G15/043 , H04N1/193 , H04N1/00
Abstract: A data acquiring portion acquires a plurality of pieces of second data having different levels depending on amounts of light incident on the light reception portions upon reception of a specific linear light having a specific amount of light. A level acquiring portion acquires a maximum level and a minimum level from among the levels of the plurality of pieces of second data. A characteristic data storage portion preliminarily stores characteristic data that indicates levels of the plurality of pieces of second data. A light amount deriving portion executes a light amount deriving process to derive a set light amount of the linear light based on a threshold, the maximum level, the minimum level, and the characteristic data. A second light emission control portion causes the light emission portion to emit linear light having the set light amount.
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公开(公告)号：US10343435B2
公开(公告)日：2019-07-09
申请号：US16016731
申请日：2018-06-25
Applicant: KYOCERA Document Solutions Inc.
Inventor： Katsuo Mikashima
Abstract: An inkjet recording apparatus includes a plurality of nozzles, storage, a first reading section, a first computing section, a selection section, and a controller. The storage stores first information and first pattern image data representing a first pattern image. The first reading section scans a sheet to generate sheet data. The first computing section computes positions of both edge portions of the sheet in a main scanning direction based on the sheet data. The selection section selects a plurality of used nozzles. The controller directs the used nozzles to form a second pattern image on the sheet.
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