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公开(公告)号：US10545433B2
公开(公告)日：2020-01-28
申请号：US16393584
申请日：2019-04-24
Applicant: KYOCERA Document Solutions Inc.
Inventor： Hiroka Itani , Keigo Kimura
Abstract: An image forming apparatus has a plurality of image forming portions, an intermediate transfer belt having an elastic layer, a plurality of primary transfer members, a contact-separation mechanism, a secondary transfer member, a driving device, a voltage applying device, and a control portion. The contact-separation mechanism is switchable between an all-color pressure state where the primary transfer members are all in pressed contact with the image carrying members via the intermediate transfer belt and an all-color apart state where the primary transfer members are all away from the intermediate transfer belt. At first power-on, the control portion starts driving the image carrying members and the intermediate transfer belt in the all-color apart state, then transits to the all-color pressure state, and then ejects toner from the developing device to the image carrying members to reduce the surface friction coefficient on the image carrying members and the intermediate transfer belt.
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2.发明申请公开(公告)号：US20190072894A1
公开(公告)日：2019-03-07
申请号：US16081152
申请日：2018-01-12
Applicant: KYOCERA Document Solutions Inc.
Inventor： Shingo Sakato , Nariaki Tanaka , Kiyotaka Kobayashi , Hiroka Itani , Takuji Watanabe , Eriko Hayashi
Abstract: In an image forming apparatus, a resistance component of an inner impedance of an electricity removing member is equal to or lower than a value that is obtained by multiplying a calculated resistance value by a first specific value, the calculated resistance value being calculated based on a predetermined formula as a DC resistance value of the electricity removing member that is required to reduce a pre-electricity-removal potential of a photoconductor to a predetermined post-electricity-removal potential during an electricity removal time, the first specific value being calculated based on a ratio of a linear speed of the electricity removing member to a linear speed of the photoconductor, and a resistance component of the contact impedance of the electricity removing member is equal to or lower than a value that is obtained by multiplying the calculated resistance value by a second specific value that is calculated based on the ratio.
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公开(公告)号：US09063454B2
公开(公告)日：2015-06-23
申请号：US14026255
申请日：2013-09-13
Applicant: KYOCERA Document Solutions Inc.
Inventor： Hiroka Itani
CPC classification number: G03G15/0266 , G03G21/06
Abstract: An image forming apparatus includes an image forming unit, a charging bias application section, a static eliminating bias application section, and a control section. In the case where the image forming unit causes an image carrier to be rotated without forming an electrostatic latent image on the image carrier, the control section performs a bias control to allow the charging bias application section to apply to a charging section a smaller charging bias than used in forming a toner image and allow the static eliminating bias application section to apply to a static eliminating section a smaller static eliminating bias than used in forming the toner image. The control section performs the bias control to increase respective values of the charging bias and the static eliminating bias every one revolution of the image carrier until the charging bias and the static eliminating bias in forming the toner image are reached.
Abstract translation: 图像形成装置包括图像形成单元，充电偏压施加部，静电消除偏压施加部和控制部。 在图像形成单元使图像载体不在图像载体上形成静电潜像的情况下，控制部进行偏置控制，使得充电偏压施加部向充电部施加较小的充电偏压 比用于形成调色剂图像并且允许静电消除偏压施加部分施加到除去形成调色剂图像所使用的更小的静电消除偏差的静电消除部分。 控制部分执行偏压控制以增加图像载体的每转一周的充电偏压和静电消除偏置的各自的值，直到达到形成调色剂图像的充电偏压和静电消除偏压。
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4.发明申请公开(公告)号：US20170285506A1
公开(公告)日：2017-10-05
申请号：US15474869
申请日：2017-03-30
Applicant: KYOCERA Document Solutions Inc.
Inventor： Hiroka Itani , Nariaki Tanaka , Shingo Sakato , Kiyotaka Kobayashi , Takuji Watanabe , Eriko Hayashi
IPC: G03G21/00
CPC classification number: G03G21/06
Abstract: An image forming apparatus includes a photoconductor and an electricity removing member electrically grounded and disposed to be in contact with a surface of the photoconductor. In the image forming apparatus, with regard to a capacitance component of an inner impedance of the electricity removing member and a capacitance component of a contact impedance of the electricity removing member that are calculated from a Cole-Cole plot obtained from measurement by an AC impedance method in a predetermined frequency range, a value obtained by dividing the capacitance component of the contact impedance by the capacitance component of the inner impedance is equal to or lower than a predetermined first specific value, and the capacitance component of the inner impedance is equal to or lower than a predetermined second specific value.
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5.发明授权Image forming apparatus that uses either a heater or frictional heating to heat and dry a surface of a photoconductive drum based on the detected ambient temperature and humidity 有权基于检测到的环境温度和湿度，使用加热器或摩擦加热来加热和干燥感光鼓的表面的图像形成装置公开(公告)号：US09280138B2
公开(公告)日：2016-03-08
申请号：US14297405
申请日：2014-06-05
Applicant: KYOCERA Document Solutions Inc.
Inventor： Hiroka Itani
CPC classification number: G03G21/203 , G03G21/0094
Abstract: An image forming apparatus includes a slidingly-rubbing roller abutting a surface of a photoconductive drum; a temperature detection section; a humidity detection section; and a heating control section. When the humidity detected by the humidity detection section is equal to or higher than a first threshold humidity and the temperature detected by the temperature detection section is equal to or higher than a threshold temperature, the heating control section heats and dries the surface of the photoconductive drum by a heat generator, while in a case when the humidity is equal to or higher than the first threshold humidity and the temperature is less than the threshold temperature, the heating control section polishes the surface of the photoconductive drum by the slindingly-rubbing roller with a polishing agent contained in a toner and heats and dries the drum surface by frictional heat generated from the polishing.
Abstract translation: 图像形成装置包括抵靠感光鼓的表面的滑动摩擦辊; 温度检测部; 湿度检测部; 和加热控制部。 当由湿度检测部检测到的湿度等于或高于第一阈值湿度，并且由温度检测部检测到的温度等于或高于阈值温度时，加热控制部分加热并干燥光电导表面 通过热发生器滚筒，而当湿度等于或高于第一阈值湿度并且温度小于阈值温度的情况下，加热控制部分通过滑动摩擦辊对感光鼓的表面进行抛光 其中包含在调色剂中的抛光剂并且通过由抛光产生的摩擦热来加热和干燥滚筒表面。
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Patent Agency Ranking
公开(公告)号：US20140079419A1
公开(公告)日：2014-03-20
申请号：US14026255
申请日：2013-09-13
Applicant: KYOCERA Document Solutions Inc.
Inventor： Hiroka Itani
CPC classification number: G03G15/0266 , G03G21/06
Abstract: An image forming apparatus includes an image forming unit, a charging bias application section, a static eliminating bias application section, and a control section. In the case where the image forming unit causes an image carrier to be rotated without forming an electrostatic latent image on the image carrier, the control section performs a bias control to allow the charging bias application section to apply to a charging section a smaller charging bias than used in forming a toner image and allow the static eliminating bias application section to apply to a static eliminating section a smaller static eliminating bias than used in forming the toner image. The control section performs the bias control to increase respective values of the charging bias and the static eliminating bias every one revolution of the image carrier until the charging bias and the static eliminating bias in forming the toner image are reached.
Abstract translation: 图像形成装置包括图像形成单元，充电偏压施加部，静电消除偏压施加部和控制部。 在图像形成单元使图像载体不在图像载体上形成静电潜像的情况下，控制部进行偏置控制，使得充电偏压施加部向充电部施加较小的充电偏压 比用于形成调色剂图像并且允许静电消除偏压施加部分施加到除去形成调色剂图像所使用的更小的静电消除偏差的静电消除部分。 控制部分执行偏压控制以增加图像载体的每转一周的充电偏压和静电消除偏置的各自的值，直到达到形成调色剂图像的充电偏压和静电消除偏压。
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公开(公告)号：US11320772B2
公开(公告)日：2022-05-03
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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8.发明授权公开(公告)号：US10042318B2
公开(公告)日：2018-08-07
申请号：US15474869
申请日：2017-03-30
Applicant: KYOCERA Document Solutions Inc.
Inventor： Hiroka Itani , Nariaki Tanaka , Shingo Sakato , Kiyotaka Kobayashi , Takuji Watanabe , Eriko Hayashi
Abstract: An image forming apparatus includes a photoconductor and an electricity removing member electrically grounded and disposed to be in contact with a surface of the photoconductor. In the image forming apparatus, with regard to a capacitance component of an inner impedance of the electricity removing member and a capacitance component of a contact impedance of the electricity removing member that are calculated from a Cole-Cole plot obtained from measurement by an AC impedance method in a predetermined frequency range, a value obtained by dividing the capacitance component of the contact impedance by the capacitance component of the inner impedance is equal to or lower than a predetermined first specific value, and the capacitance component of the inner impedance is equal to or lower than a predetermined second specific value.
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公开(公告)号：US20130343783A1
公开(公告)日：2013-12-26
申请号：US13975944
申请日：2013-08-26
Applicant: KYOCERA Document Solutions Inc.
Inventor： Shinki Miyaji , Masaki Kadota , Yoshitaka Imanaka , Hiroka Itani , Masahito Ishino
IPC: G03G15/02
CPC classification number: G03G15/02 , G03G5/04 , G03G5/0596 , G03G15/75
Abstract: An image forming apparatus includes a positively-charged single layer type electrophotographic photoreceptor, a charging device with a contact charging roller for charging a surface of the photoreceptor and an exposure device for exposing the charged surface of the photoreceptor to light to form an electrostatic latent image thereon. A developing device develops the electrostatic latent image into a toner image and a transfer device transfers the toner image to a transferred body. The charging roller is made of electrically conductive rubber having an Asker-C rubber hardness of 62 to 81°. A roller surface roughness of the charging roller has an average distance (Sm) between asperity peaks on a cross-sectional curve of 55 to 130 μm and that a ten-point average roughness (Rz) is 9 to 19 μm. The image forming apparatus is capable of preventing carrier trapping, film peeling and uneven charging in the photoreceptor.
Abstract translation: 图像形成装置包括带正电的单层电子照相感光体，具有用于对感光体的表面充电的接触充电辊的充电装置和用于将感光体的带电表面曝光以形成静电潜像的曝光装置 上。 显影装置将静电潜像显影成调色剂图像，并且转印装置将调色剂图像转印到转印体上。 充电辊由Asker-C橡胶硬度为62〜81°的导电橡胶制成。 充电辊的辊表面粗糙度在55-130μm的横截面曲线上具有不均匀峰之间的平均距离（Sm），并且十点平均粗糙度（Rz）为9至19μm。 图像形成装置能够防止感光体中的载体捕获，膜剥离和不均匀充电。
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公开(公告)号：US12182991B2
公开(公告)日：2024-12-31
申请号：US17844196
申请日：2022-06-20
Applicant: KYOCERA Document Solutions Inc.
Inventor： Shiro Kaneko , Hiroka Itani , Koji Sato , Naomichi Higashiyama
Abstract: An anomaly detecting unit detects an anomaly object in a target image. A characteristic amount watching unit watches at least two basic characteristic amounts of the anomaly object, determines whether values of the basic characteristic amounts satisfy a predetermined watching determination condition of any one of predetermined plural anomaly types or not, if it is determined that the values of the basic characteristic amounts satisfy the watching determination condition, determines as an auxiliary characteristic amount for the anomaly object a characteristic amount corresponding to the anomaly type of which the values of the basic characteristic amounts satisfy the watching determination condition, and starts watching a value of the auxiliary characteristic amount. An anomaly type determining unit determines an anomaly type of the anomaly object on the basis of the basic characteristic amounts and the auxiliary characteristic amount currently watched by the characteristic amount watching unit.
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