公开(公告)号：US20240160141A1

公开(公告)日：2024-05-16

申请号：US18504625

申请日：2023-11-08

申请人： Konica Minolta, Inc.

发明人： HIROYUKI YOSHIKAWA ,  HITOSHI ASANO ,  YUMIKO IZUMIYA ,  AKIMASA ISHIKAWA ,  YASUO KOYANAGI

IPC分类号： G03G15/00 ,  G03G21/00

CPC分类号： G03G15/5037 ,  G03G15/6552 ,  G03G15/6555 ,  G03G21/0047 ,  G03G2215/00734 ,  G03G2221/0068

摘要： A sheet characteristic detection device includes: a detector that is disposed on a sheet ejection path through which a sheet is ejected and that detects an electrical resistance value of the sheet; and a charge neutralizer that is disposed on a downstream side of the detector on the sheet ejection path and that neutralizes electric charge on the sheet.

公开(公告)号：US11977351B2

公开(公告)日：2024-05-07

申请号：US18331704

申请日：2023-06-08

申请人： KYOCERA Document Solutions Inc.

发明人： Takuji Watanabe ,  Junichi Nakagawa ,  Kenichi Tamaki ,  Hiroshi Yamazaki ,  Tamotsu Shimizu

IPC分类号： G03G21/20 ,  G03G15/02 ,  G03G15/06 ,  G03G15/09 ,  G03G21/00 ,  G03G21/10 ,  G03G21/18

CPC分类号： G03G21/206 ,  G03G15/0266 ,  G03G15/065 ,  G03G15/09 ,  G03G21/0047 ,  G03G21/0052 ,  G03G21/10 ,  G03G21/105 ,  G03G21/1814 ,  G03G2215/00025 ,  G03G2221/1645

摘要： An image forming apparatus includes a development device, and a control unit that controls the development device. The development device includes a toner collection mechanism having a duct, a filter, and an exhaust fan. The duct is connected to a conveyance chamber of the development container and allows air in the conveyance chamber to flow through. The filter is disposed at a connecting part between the duct and the conveyance chamber, and collects toner flowing into the duct from the conveyance chamber. The exhaust fan makes the air in the conveyance chamber flow to the outside via the duct. The control unit changes rotational frequency or operation frequency of the exhaust fan based on current detected by a current detection unit at non-image forming time.

公开(公告)号：US20230195004A1

公开(公告)日：2023-06-22

申请号：US18052977

申请日：2022-11-07

申请人： Minoru Masuda ,  Tohru Suganuma ,  Masashi Nagayama ,  Hiroyuki Kishida ,  Kento Takeuchi ,  Kaede Masuko ,  Tomomi Suzuki ,  Takuya Suganuma ,  Kazuki Yogosawa

发明人： Minoru Masuda ,  Tohru Suganuma ,  Masashi Nagayama ,  Hiroyuki Kishida ,  Kento Takeuchi ,  Kaede Masuko ,  Tomomi Suzuki ,  Takuya Suganuma ,  Kazuki Yogosawa

IPC分类号： G03G9/083 ,  G03G21/00 ,  G03G21/16

CPC分类号： G03G9/0834 ,  G03G21/0047 ,  G03G21/1676

摘要： A developing apparatus includes an electrostatic latent image bearer, a developing sleeve, a case, and an air filter. The case accommodates a two-component developer and the developing sleeve. The air filter is attached to the case. The air filter has a thickness of 2 to 20 mm and has a density gradient with a pressure loss of 2 to 40 Pa at a wind speed of 10 cm/s. The air filter forms an airflow sucked into the case from a gap between the developing sleeve and the case and forms an airflow discharged from the case through the air filter. The two-component developer accommodated in the case contains a magnetic particle a surface of which is coated with a resin layer. The resin layer contains at least one type of chargeable particle.

公开(公告)号：US20190094787A1

公开(公告)日：2019-03-28

申请号：US15956756

申请日：2018-04-19

申请人： FUJI XEROX CO., LTD.

发明人： Shintaro ANNO ,  Hiroaki SAIJO ,  Takuro WATANABE ,  Yasuaki HASHIMOTO ,  Fusako KIYONO

IPC分类号： G03G15/01 ,  G03G9/113

CPC分类号： G03G21/0047 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/0902 ,  G03G9/0926 ,  G03G9/10 ,  G03G9/107 ,  G03G9/1131 ,  G03G9/1133 ,  G03G15/6585 ,  G03G21/0011

摘要： An image forming apparatus includes: a first image forming unit that includes a first image holding member and a first developing unit, the first developing unit accommodating a first developer that includes a first toner and a first carrier; a first transfer unit; a second image forming unit that is disposed downstream of the first image forming unit in a traveling direction of the transfer medium and includes a second image holding member and a second developing unit, the second developing unit accommodating a second developer that includes a second toner and a second carrier; and a second transfer unit, in which a volume resistivity of the first carrier is lower than a volume resistivity of the second carrier, and a volume average particle diameter of the first carrier is less than a volume average particle diameter of the second carrier.

公开(公告)号：US20170010556A1

公开(公告)日：2017-01-12

申请号：US15205707

申请日：2016-07-08

申请人： CANON KABUSHIKI KAISHA

发明人： Kazunori Noguchi ,  Yuka Ishiduka ,  Yuki Yamamoto ,  Atsushi Okuda ,  Akihiro Maruyama ,  Atsushi Fujii ,  Nobuhiro Nakamura ,  Kazuko Sakuma

IPC分类号： G03G15/00

CPC分类号： G03G5/04 ,  G03G5/0614 ,  G03G5/0696 ,  G03G5/14752 ,  G03G5/14756 ,  G03G5/14773 ,  G03G15/04 ,  G03G21/0047 ,  G03G21/08 ,  G03G2215/0145

摘要： An image forming method in which a surface layer of an electrophotographic photosensitive member contains a compound having a specific structure in an amount of 0.1% to 10% by mass based on the total mass of the surface layer, and in a charged region of the surface of the electrophotographic photosensitive member charged in a charging step, a non-image forming region in which an electrostatic latent image is not formed is not irradiated with destaticizing light or is irradiated with reduced destaticizing light.

摘要翻译： 一种图像形成方法，其中电子照相感光构件的表面层包含相对于表面层的总质量为0.1〜10质量％的具有特定结构的化合物，并且在表面的带电区域中 在充电步骤中充电的电子照相感光构件中，没有形成静电潜像的非图像形成区域不被去静电光照射或用减少的去静电光照射。

公开(公告)号：US20160320741A1

公开(公告)日：2016-11-03

申请号：US15140923

申请日：2016-04-28

申请人： Tomoya OHMURA ,  Satoru UCHIDA ,  Yuuki NOBUOKA

发明人： Tomoya OHMURA ,  Satoru UCHIDA ,  Yuuki NOBUOKA

IPC分类号： G03G21/00

CPC分类号： G03G21/0047 ,  G03G21/0011

摘要： An image forming apparatus includes a rotatable image bearer, a transfer member, a cleaning member, a light irradiator, and a light transmissive member. The transfer member forms a transfer position at which a visible image on a surface of the image bearer is transferred to a recording medium conveyed through a conveyance path. The cleaning member forms a cleaning position at which a substance adhering to the surface of the image bearer after transfer is cleaned. The light irradiator is disposed at a back face side of the recording medium opposite a side at which the surface of the image bearer is disposed relative to the conveyance path. The light irradiator is configured to emit light onto the surface of the image bearer. The light is targeted between the transfer position and the cleaning position. The light transmissive member is disposed between the light irradiator and the image bearer.

摘要翻译： 图像形成装置包括可旋转图像载体，转印构件，清洁构件，光照射器和透光构件。 转印构件形成转印位置，在该转印位置，图像承载体的表面上的可见图像被转印到通过输送路径输送的记录介质。 清洁构件形成清洁位置，在该位置清洁粘附到图像承载体的表面上的物质。 光照射器设置在记录介质的相对于图像载体的表面相对于输送路径设置的一侧的背面侧。 光照射器被配置为将光发射到图像承载体的表面上。 光线定位在转印位置和清洁位置之间。 透光构件设置在光照射器和图像承载体之间。

公开(公告)号：US08995861B2

公开(公告)日：2015-03-31

申请号：US13211976

申请日：2011-08-17

申请人： Takuya Kitamura ,  Hideo Kihara ,  Yuji Kawaguchi ,  Kouki Yano ,  Yuta Isobe

发明人： Takuya Kitamura ,  Hideo Kihara ,  Yuji Kawaguchi ,  Kouki Yano ,  Yuta Isobe

IPC分类号： G03G15/00 ,  G03G21/00

CPC分类号： G03G21/0047

摘要： In an image forming apparatus, when no image is being formed, an image bearing member is rotated at least one rotation, in a state in which a transfer bias is controlled such that a potential on a surface of the image bearing member on the upstream side in the rotational direction of a cleaning apparatus is a polarity opposite to that of a developer.

摘要翻译： 在图像形成装置中，当没有形成图像时，图像承载部件在转印偏压被控制的状态下旋转至少一个旋转，使得图像承载部件在上游侧的表面上的电位 在清洁装置的旋转方向上的极性与显影剂的极性相反。

公开(公告)号：US08862020B2

公开(公告)日：2014-10-14

申请号：US13749051

申请日：2013-01-24

申请人： Hidetoshi Noguchi ,  Kazuyoshi Hara ,  Takahiro Kuroda ,  Satoru Shibuya

发明人： Hidetoshi Noguchi ,  Kazuyoshi Hara ,  Takahiro Kuroda ,  Satoru Shibuya

IPC分类号： G03G15/16 ,  G03G21/00

CPC分类号： G03G21/0076 ,  G03G15/161 ,  G03G21/0011 ,  G03G21/0035 ,  G03G21/0047

摘要： Brush rollers rotate in a direction indicated by an arrow while being in contact with an image formation surface to remove toner remaining on the image formation surface from an intermediate transfer belt. The brush rollers each mainly include a rotational shaft and a brush. The brush rollers face the intermediate transfer belt with brush winding directions being opposite from one another. The brush rollers rotate in the direction indicated by the arrow. Thus, seams of the brush rollers can be prevented from being in contact with the same portion on the image formation surface of the intermediate transfer belt.

摘要翻译： 刷辊在与图像形成表面接触的同时由箭头所示的方向旋转，以从中间转印带去除残留在图像形成表面上的调色剂。 刷辊各自主要包括旋转轴和刷子。 刷辊面对中间转印带，刷辊缠绕方向彼此相反。 刷辊沿箭头所示的方向旋转。 因此，可以防止刷辊的接缝与中间转印带的图像形成表面上的相同部分接触。

公开(公告)号：US08761632B2

公开(公告)日：2014-06-24

申请号：US13469315

申请日：2012-05-11

申请人： Tomoya Ichikawa ,  Yuri Takeuchi

发明人： Tomoya Ichikawa ,  Yuri Takeuchi

IPC分类号： G03G21/00 ,  G03G15/01

CPC分类号： G03G15/0126 ,  G03G21/0047 ,  G03G21/007 ,  G03G2215/0177

摘要： An image forming apparatus includes an image carrier that holds a toner image, a rotary developing device including a plurality of developing units to develop an electrostatic latent image on the image carrier with toner by supplying the toner from the developing unit opposing the image carrier, a foreign-substance receiving plate that receives a falling foreign substance, a transfer unit that transfers the toner image from the image carrier onto a recording medium, and a fixing unit that fixes the transferred toner image on the recording medium. Each of the developing units includes a developer container that stores developer containing magnetic carriers and toner, and a developing roller that supplies the toner in the developer for development of the electrostatic latent image. The rotary developing device further supports a foreign-substance collecting member that magnetically collects a magnetic foreign substance on the foreign-substance receiving plate.

摘要翻译： 图像形成装置包括保持调色剂图像的图像载体，包括多个显影单元的旋转显影装置，用于通过从与图像载体相对的显影单元供应调色剂而使图像载体上的静电潜像显影， 接收掉落异物的异物接收板，将调色剂图像从图像载体转印到记录介质上的转印单元和将转印的调色剂图像定影在记录介质上的定影单元。 每个显影单元包括存储含有磁性载体和调色剂的显影剂的显影剂容器，以及将静电潜像显影用显影剂中的调色剂供给显影辊。 旋转显影装置还进一步支撑在异物接收板上磁性收集磁性异物的异物收集部件。

公开(公告)号：US20130114974A1

公开(公告)日：2013-05-09

申请号：US13660407

申请日：2012-10-25

申请人： Canon Kabushiki Kaisha

发明人： Michihiro Yoshida

IPC分类号： G03G21/00

CPC分类号： G03G21/0047

摘要： An image forming apparatus 100 includes: a common voltage-applying unit 8 that applies a voltage to charging-assistant members 7Y, 7M, and 7C of a plurality of image forming portions PY, PM, and PC; and a control unit 110, at the start of applying a voltage to the charging-assistant members of the plurality of image forming portions by the voltage-applying unit 8, switches the absolute value of the applied voltage from a smaller first value to a larger second value when images are formed by the plurality of image forming portions.

摘要翻译： 图像形成装置100包括：对多个图像形成部PY，PM，PC的充电辅助部件7Y，7M，7C施加电压的公共电压施加部8; 以及控制单元110，在通过施加电压单元8向多个图像形成部的充电辅助构件施加电压开始时，将施加电压的绝对值从较小的第一值切换到较大的值 当由多个图像形成部分形成图像时的第二值。