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公开(公告)号：US11841669B2
公开(公告)日：2023-12-12
申请号：US17986078
申请日：2022-11-14
Applicant: CANON KABUSHIKI KAISHA
Inventor： Kazuhiro Funatani , Shinsuke Kobayashi , Shuichi Tetsuno , Toshihiko Takayama , Jun Hara
CPC classification number: G03G21/0064 , G03G15/0216 , G03G21/0035 , G03G21/06 , G03G21/08 , G03G2215/017 , G03G2215/022 , G03G2221/0005
Abstract: An image forming apparatus includes a charging unit that charges an image bearing member, a developing unit that forms a toner image on an latent image formed on the image bearing member, a transfer unit that transfers the toner image onto a transfer material, a charge neutralizer that neutralizes a charge of the image bearing member downstream of a transfer portion and upstream of a charging portion in a rotating direction of the image bearing member, a conductive collecting unit that collects a material adhering on the image bearing member downstream of the transfer portion and upstream of the charging portion, wherein the developing unit collects residual toner on the image bearing member, an voltage application unit sets a potential difference between the voltage applied to the collecting unit and the surface electric potential of the image bearing member not more than a discharge threshold.
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公开(公告)号：US20180335715A1
公开(公告)日：2018-11-22
申请号：US15969385
申请日：2018-05-02
Applicant: KYOCERA Document Solutions Inc.
Inventor： Norio TOMIIE
IPC: G03G15/02
CPC classification number: G03G15/04036 , G03G15/0216 , G03G15/0266 , G03G15/043 , G03G15/5037 , G03G15/55 , G03G21/06
Abstract: An image forming apparatus has an image carrying member, a charging member, an exposing device, a destaticizer, a high-voltage generation circuit, a current detector, and a controller. The controller is configured to execute a contamination state check mode having a potential saturation step where the surface potential of the image carrying member is saturated by applying a DC voltage alone to the charging member, an exposure step where the image carrying member of which the surface potential is saturated is exposed to light in an exposure pattern extending continuously over its entire area in the main scanning direction while being displaced at a constant rate in the sub-scanning direction by the exposing device, and a current detection step where the charging current that passes while the exposure pattern formed on the surface of the image carrying member passes through the charging member is detected by the current detector.
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公开(公告)号：US20180120744A1
公开(公告)日：2018-05-03
申请号：US15793395
申请日：2017-10-25
Applicant: KONICA MINOLTA, INC.
Inventor： Hideo YAMAKI , Satoru SHIBUYA
CPC classification number: G03G15/2053 , G03G15/0142 , G03G15/1605 , G03G15/1685 , G03G15/553 , G03G21/06
Abstract: Provided is an image forming apparatus capable of estimating lives of components more accurately than before. The image forming apparatus includes an ion conductive component, and a processor for estimating a life of the conductive component. The processor acquires an index value related to energization of the conductive component, and estimates the life of the conductive component based on the index value per unit time.
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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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公开(公告)号：US20170090397A1
公开(公告)日：2017-03-30
申请号：US15278480
申请日：2016-09-28
Applicant: KYOCERA Document Solutions Inc.
Inventor： Hitoshi HAYAMIZU
IPC: G03G21/00
Abstract: A static eliminating device includes a substrate provided with a plurality of light emitters that irradiates light as static eliminating light onto a surface of a photosensitive body, and a plurality of limiting resistors that is provided on a same surface as the light emitters. One ends of each of the plurality of light emitters are connected to a power source via the plurality of limiting resistors. The static eliminating device further includes: a first switching section that supplies power from the power source to the plurality of limiting resistors and the plurality of light emitters at a ON state; and a second switching section that supplies power from the power source to the limiting resistors at the ON state, but does not supply the power to the light emitters.
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公开(公告)号：US20160026110A1
公开(公告)日：2016-01-28
申请号：US14801765
申请日：2015-07-16
Applicant: KYOCERA Document Solutions Inc.
Inventor： Masahiro TSUTSUMI
CPC classification number: G03G21/06
Abstract: An image forming apparatus includes an image bearing member, a transfer device, a first charging device, a static elimination device, a second charging device, a light exposure device, and a development device. The transfer device transfers a developer image of a first polarity onto a recording medium from the image bearing member by receiving a transfer bias of a second polarity. The first charging device charges a region of the image bearing member that has undergone transfer to the first polarity by receiving a first charging bias of the first polarity. An absolute value of the first charging bias is greater during charging of a first region of the image bearing member than during charging of a second region of the image bearing member. The first region includes a trailing end contact section. The second region does not include the trailing end contact section or a leading end contact section.
Abstract translation: 图像形成装置包括图像承载部件，转印装置，第一充电装置，静电消除装置，第二充电装置，曝光装置和显影装置。 传送装置通过接收第二极性的转印偏压，将来自图像承载部件的第一极性的显影剂图像转印到记录介质上。 第一充电装置通过接收第一极性的第一充电偏压来对已经经历转移到第一极性的图像承载部件的区域进行充电。 在图像承载部件的第一区域的充电期间，第一充电偏压的绝对值大于在图像承载部件的第二区域的充电期间的绝对值。 第一区域包括尾端接触部分。 第二区域不包括尾端接触部分或前端接触部分。
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公开(公告)号：US20160026109A1
公开(公告)日：2016-01-28
申请号：US14794025
申请日：2015-07-08
Applicant: Masayoshi Nakayama , Takuma Higa , Hiroyuki Kunii , Masaki Sukesako , Kazuaki Kamihara , Masakazu Terao , Yuichi Aizawa , Masahiro Katoh , Kohei Matsumoto , Toshihiro Sugiyama
Inventor： Masayoshi Nakayama , Takuma Higa , Hiroyuki Kunii , Masaki Sukesako , Kazuaki Kamihara , Masakazu Terao , Yuichi Aizawa , Masahiro Katoh , Kohei Matsumoto , Toshihiro Sugiyama
CPC classification number: G03G15/0275 , G03G21/06 , G03G21/08
Abstract: An image forming apparatus includes a first electric charging unit having an electric discharge wire to uniformly electrify a surface of the electrostatic latent image bearer, a second electric charging unit having a second electric discharge wire to execute a pre-electric charge removal electric charging process by electrifying the surface of the electrostatic latent image bearer subsequent to a transfer process to transfer a toner image, and a first electric charge removing device to diselectrify the surface of the electrostatic latent image bearer by irradiating it with electric charge removing light subsequent to the pre-electric charge removal electric charging process. The first electric charge removing device is disposed within an electric discharge region of the second electric discharge wire on a downstream side of an extreme upstream edge of the electric discharge region of the second electric discharge wire in a rotational direction of the electrostatic latent image bearer.
Abstract translation: 图像形成装置包括具有放电线以使静电潜像载体的表面均匀充电的第一充电单元，具有第二放电线的第二充电单元，用于执行预充电去除充电过程， 在传送调色剂图像的转印处理之后对静电潜像承载体的表面通电，以及第一电荷去除装置，以通过在静电潜像承载体的表面上照射电荷去除光， 电荷去除充电过程。 第一电荷除去装置设置在第二放电线的放电区域中，在静电潜像承载体的旋转方向上位于第二放电线的放电区域的最上游边缘的下游侧。
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公开(公告)号：US20150277359A1
公开(公告)日：2015-10-01
申请号：US14671242
申请日：2015-03-27
Applicant: BROTHER KOGYO KABUSHIKI KAISHA
Inventor： Koji ABE , Yasuo FUKAMACHI
IPC: G03G21/00
CPC classification number: G03G21/1814 , G03G21/0094 , G03G21/06 , G03G21/08 , G03G21/1671 , G03G21/1817 , G03G2221/1853
Abstract: An image forming apparatus includes: a main casing; a light source; and a photosensitive cartridge. The light source is provided in the main casing and configured to emit a light. The photosensitive cartridge is mountable in the main casing in a mounting direction. The photosensitive cartridge includes: a photosensitive drum; a light guide; a first wall and a second wall. The photosensitive drum has a surface. The light guide is configured to guide the light emitted from the light source to the surface of the photosensitive drum to eliminate static on the surface of the photosensitive drum. The second wall is spaced apart from the first wall in a first direction that crosses the mounting direction. The light source is disposed between the first wall and the second wall when the photosensitive cartridge has been mounted in the main casing.
Abstract translation: 图像形成装置包括：主壳体; 光源; 和感光盒。 光源设置在主壳体中并且被配置为发射光。 感光盒可以沿安装方向安装在主壳体中。 感光盒包括：感光鼓; 光导 第一个墙壁和第二个墙壁。 感光鼓具有表面。 光导被配置为将从光源发射的光引导到感光鼓的表面以消除感光鼓表面上的静电。 第二壁在与安装方向交叉的第一方向上与第一壁间隔开。 当感光盒已经安装在主壳体中时，光源设置在第一壁和第二壁之间。
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9.发明申请PROCESSING CARTRIDGE, IMAGE FORMING APPARATUS WITH SAME, AND IMAGE FORMING METHOD 有权加工盒，图像成像装置和图像形成方法
公开(公告)号：US20150071662A1
公开(公告)日：2015-03-12
申请号：US14469706
申请日：2014-08-27
Applicant: Masahide YAMASHITA , Mayumi YOSHIHARA
Inventor： Masahide YAMASHITA , Mayumi YOSHIHARA
IPC: G03G15/02
CPC classification number: G03G15/0266 , G03G15/751 , G03G21/06 , G03G2215/00962
Abstract: An image forming apparatus includes an electrophotographic photoreceptor that bears a latent image, an electrostatic charging unit that negatively charges the electrophotographic photoreceptor uniformly with electricity, and a latent image writing unit that writes a latent image on the electrophotographic photoreceptor. A one-component developing unit renders the latent image visible by developing thereof. A transfer device transfers the toner image from the electrophotographic photoreceptor onto a transfer medium. The inequality C×V
Abstract translation: 图像形成装置包括具有潜像的电子照相感光体，使电均匀地对电子照相感光体进行负电荷的静电充电单元，以及将潜像写入电子照相感光体的潜像写入单元。 单组分显影单元通过显影潜像可见。 转印装置将调色剂图像从电子照相感光体转印到转印介质上。 满足不等式C×V
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公开(公告)号：US20150030352A1
公开(公告)日：2015-01-29
申请号：US14335019
申请日：2014-07-18
Applicant: KYOCERA Document Solutions Inc.
Inventor： Kenichi HAYASHI
IPC: G03G21/00
CPC classification number: G03G21/08 , G03G15/6532 , G03G21/06
Abstract: An image forming apparatus includes an image carrier, a development device, a transferring device, a static eliminating device, a cleaning device, a separating claw and a static elimination assisting device. On the image carrier, an electrostatic latent image is formed. The development device develops the electrostatic latent image by a toner. The transferring device transfers the toner on the image carrier to a recording sheet. The static eliminating device irradiates the image carrier with a light to eliminate a remained static charge. The cleaning device removes the toner remained on the image carrier. The separating claw is arranged between the static eliminating device and image carrier to separate the recording sheet from the image carrier. The static elimination assisting device radiates a light to a light obstruction area where is not irradiated with the light emitted from the static eliminating device on the image carrier due to the separating claw.
Abstract translation: 图像形成装置包括图像载体，显影装置，转印装置，静电消除装置，清洁装置，分离爪和静电消除辅助装置。 在载体上形成静电潜像。 显影装置通过调色剂显影静电潜像。 转印装置将图像载体上的调色剂转印到记录纸上。 静电消除装置用光照射图像载体以消除静电荷。 清洁装置去除保留在图像载体上的调色剂。 分离爪布置在静电消除装置和图像载体之间，以将记录片材与图像载体分离。 静电消除辅助装置由于分离爪而将光照射到不被照射在图像载体上的静电消除装置的光的光障碍区域。
