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公开(公告)号：US20250010635A1
公开(公告)日：2025-01-09
申请号：US18758856
申请日：2024-06-28
Applicant: KYOCERA Document Solutions Inc.
Inventor： Masato Usui , Hiroomi Nakatsuji , Naoko Kawashima , Jun Nakano
IPC: B41J2/21
Abstract: An image forming apparatus includes a recording head, a control unit, an ejection malfunction nozzle detecting unit, and a correction processing unit. The recording head is configured to eject ink corresponding to an image to be printed, using arranged nozzles. The control unit is configured to determine nozzles corresponding to the image to be printed and cause the recording head to eject ink from the nozzles. The ejection malfunction nozzle detecting unit is configured to perform an ejection malfunction test and thereby detect an ejection malfunction nozzle among the nozzles. The correction processing unit is configured to perform a correction process corresponding to the detected ejection malfunction nozzle.
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公开(公告)号：US20240308237A1
公开(公告)日：2024-09-19
申请号：US18602494
申请日：2024-03-12
Applicant: KYOCERA Document Solutions Inc.
Inventor： Masato Usui , Hiroomi Nakatsuji , Naoko Kawashima , Jun Nakano
CPC classification number: B41J2/2139 , B41J2/2135 , B41J2/2142 , B41J2/2146 , G06K15/027 , G06K2215/101
Abstract: An ejection malfunction nozzle detecting unit prints a test pattern on a print sheet using the recording head, and detects an ejection malfunction nozzle on the basis of a density distribution of a scanned image of the test pattern. Here, a resolution of the scanned image is lower than a resolution of the test pattern printed on the print sheet using the recording head. Further, a correction processing unit (a) stores into a predetermined storage device history data that indicates the ejection malfunction nozzle for which the correction process was performed, (b) refers to the history data and detects as an additional correction nozzle a nozzle included in the history data, among nozzles corresponding to a predetermined pixel range that includes a pixel corresponding to the detected ejection malfunction nozzle, and (c) performs the correction process for the detected ejection malfunction nozzle and the additional ejection malfunction nozzle.
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公开(公告)号：US11300918B2
公开(公告)日：2022-04-12
申请号：US17037536
申请日：2020-09-29
Applicant: KYOCERA Document Solutions Inc.
Inventor： Takeshi Watanabe , Hiroki Sakane , Masato Usui , Kenichi Satake , Shinobu Ohata , Naoto Miyakoshi , Shunsuke Yamasaki , Yasuhiro Michishita , Yusuke Tamekuni , Yuzuru Yuasa , Hiroatsu Tamai
IPC: G03G21/00
Abstract: A cleaning device includes a cleaning unit and a unit moving mechanism. The cleaning unit brings a web into contact with a conveyance member rotating around an axis and removes foreign matter adhered to the conveyance member. The unit moving mechanism displaces the cleaning unit to a cleaning position where the web is brought into contact with the conveyance member and to a separation position where the web is separated away from the conveyance member. When the unit moving mechanism displaces the cleaning unit from the cleaning position to the separation position, the cleaning unit is displaced in a counter direction opposite to a rotational direction of the conveyance member on a contact face between the conveyance member and the web.
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公开(公告)号：US10987946B2
公开(公告)日：2021-04-27
申请号：US16417163
申请日：2019-05-20
Applicant: KYOCERA Document Solutions Inc.
Inventor： Masaaki Maruta , Masato Usui
Abstract: An ink ejecting device includes: a head that ejects ink from a plurality of nozzles arranged along a Y-axis direction parallel to a direction in which a recording medium is conveyed; an X-axis moving mechanism that moves the head in an X-axis direction orthogonal to the Y-axis direction on the horizontal plane; a control unit that performs scanning in which the head is moved in the X-axis direction and that causes the head to eject ink during the scanning; and a Z-axis moving mechanism that moves the head in a Z-axis direction orthogonal to the Y-axis and X-axis directions.
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公开(公告)号：US20200379399A1
公开(公告)日：2020-12-03
申请号：US16885329
申请日：2020-05-28
Applicant: KYOCERA Document Solutions Inc.
Inventor： Takeshi Watanabe , Hiroatsu Tamai , Kenichi Satake , Hiroki Sakane , Masato Usui , Yuzuru Yuasa , Yusuke Tamekuni , Yasuhiro Michishita , Shinobu Ohata , Naoto Miyakoshi , Shunsuke Yamasaki
IPC: G03G21/00
Abstract: A cleaning device includes a controller configured to control cleaning of a conveyance roller by a web. The controller includes a separation and contact control unit, a conveyance roller rotation control unit, and a take-up control unit. The separation and contact control unit is configured to control a separation and contact mechanism so as to allow the web to be pressed to the conveyance roller when the conveyance roller is in a non-conveyable state. The conveyance roller rotation control unit rotates the conveyance roller in a state where the web is pressed to the conveyance roller. The take-up control unit is configured to allow the take-up roller to perform a take-up operation of taking up the web by rotatably driving the take-up roller plural times at a predetermined time interval within a cleaning time set in advance in a state where the conveyance roller is being rotated.
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Patent Agency Ranking
公开(公告)号：US20200376871A1
公开(公告)日：2020-12-03
申请号：US16885915
申请日：2020-05-28
Applicant: KYOCERA Document Solutions Inc.
Inventor： Kenichi Satake , Hiroatsu Tamai , Takeshi Watanabe , Hiroki Sakane , Yusuke Tamekuni , Masato Usui , Yuzuru Yuasa , Yasuhiro Michishita , Naoto Miyakoshi , Shunsuke Yamasaki , Shinobu Ohata
Abstract: A cleaning device cleans a surface of a sheet conveyance member that conveys a sheet in an image forming apparatus which executes image forming processing, using a liquid recording material. The cleaning device includes a cleaning member having a contact surface configured to be brought into contact with the surface of the sheet conveyance member. A contact angle of the contact surface with the recording material is smaller than a contact angle of the surface of the sheet conveyance member with the recording material.
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公开(公告)号：US20240359483A1
公开(公告)日：2024-10-31
申请号：US18641304
申请日：2024-04-19
Applicant: KYOCERA Document Solutions Inc.
Inventor： Hiroomi Nakatsuji , Jun Nakano , Masato Usui , Naoko Kawashima
IPC: B41J2/21
CPC classification number: B41J2/2142
Abstract: An image forming apparatus includes a recording head, a control unit, an ejection malfunction detecting unit, and an ejection malfunction nozzle determining unit. The recording head ejects ink corresponding to an image to be printed, using arranged nozzles. The control unit determines nozzles corresponding to the image and causes the recording head to eject ink from the nozzles. The ejection malfunction detecting unit (a) prints a first test pattern on a print sheet using the recording head, and (b) detects a density defect due to ejection malfunction in a scanned image of the first test pattern. The ejection malfunction nozzle determining unit (a) prints a second test pattern using the recording head if the density defect is detected by the ejection malfunction detecting unit, and (b) does not perform printing of the second test pattern if no density defects are detected by the ejection malfunction detecting unit.
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公开(公告)号：US11518182B2
公开(公告)日：2022-12-06
申请号：US17384755
申请日：2021-07-24
Applicant: KYOCERA Document Solutions Inc.
Inventor： Shinobu Ohata , Naoto Miyakoshi , Shunsuke Yamasaki , Hiroatsu Tamai , Yasuhiro Michishita , Takeshi Watanabe , Hiroki Sakane , Kenichi Satake , Masato Usui , Yuzuru Yuasa , Yusuke Tamekuni
Abstract: A cleaning device includes a cleaning unit, a movement mechanism, and a unit mounting portion. The cleaning unit includes a cleaning part having a contact surface brought into contact with a surface of a conveyance roller. The movement mechanism moves the cleaning unit between a cleaning position at which the cleaning part comes in contact with the conveyance roller, and a mounting and removing position at which the cleaning part is located below the conveyance roller in a separated manner and the cleaning unit is allowed to be mounted and removed on and from the apparatus body. The unit mounting portion houses the cleaning unit disposed at the mounting and removing position. The cleaning unit is configured such that the cleaning unit in a state of being housed in the unit mounting portion is mounted and removed, together with the processing unit, on and from the apparatus body.
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公开(公告)号：US11485160B2
公开(公告)日：2022-11-01
申请号：US16885195
申请日：2020-05-27
Applicant: KYOCERA Document Solutions Inc.
Inventor： Masato Usui , Hiroatsu Tamai , Takeshi Watanabe , Kenichi Satake , Hiroki Sakane , Yuzuru Yuasa , Yusuke Tamekuni , Yasuhiro Michishita , Shinobu Ohata , Naoto Miyakoshi , Shunsuke Yamasaki
Abstract: A cleaning device includes a separation and contact mechanism that separates a web from a conveyance roller and brings the web into contact with the conveyance roller, and a controller. The controller includes a conveyed sheet number determination unit and a separation and contact control unit. The conveyed sheet number determination unit monitors a conveyed sheet number of both-surface image forming sheets where image forming processing is applied to both a first surface and a second surface with respect to the sheets conveyed by the conveyance roller, and determines whether or not a cumulative value of the conveyed sheet number has reached a predetermined threshold value. The separation and contact control unit controls the separation and contact mechanism so as to allow the web to be pressed to the conveyance roller by a pressing roller when the cumulative value of the conveyed sheet number has reached the threshold value.
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公开(公告)号：US20220256052A1
公开(公告)日：2022-08-11
申请号：US17591909
申请日：2022-02-03
Applicant: KYOCERA Document Solutions Inc.
Inventor： Hiroomi Nakatsuji , Hiroki Sakane , Naoko Kawashima , Jun Nakano , Masato Usui
IPC: H04N1/405
Abstract: An image processing apparatus includes a halftone processing unit and a multi-level gradation processing unit. The halftone processing unit is configured to perform a halftone process for a target image and generate a binary image corresponding to the target image. The multi-level gradation processing unit is configured to (a) set a target pixel as a dot pixel in the binary image, (b) determine whether a dot exists on plural first periphery pixels with a predetermined first distance from the target pixel and plural second periphery pixels with a predetermined second distance from the target pixel or not, (c) derive a gradation level of the target pixel among predetermined three or more gradation levels on the basis of a number of dots on the plural first periphery pixels and a number of dots on the plural second periphery pixels and thereby generate a multi-level gradation image.
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