公开(公告)号：US20120237271A1

公开(公告)日：2012-09-20

申请号：US13417637

申请日：2012-03-12

申请人： Kenji SENGOKU ,  Hiroyoshi Haga ,  Hiromi Ogiyama ,  Yasunobu Shimizu ,  Tomokazu Takeuchi

发明人： Kenji SENGOKU ,  Hiroyoshi Haga ,  Hiromi Ogiyama ,  Yasunobu Shimizu ,  Tomokazu Takeuchi

IPC分类号： G03G15/16

CPC分类号： G03G21/0023 ,  G03G15/0131 ,  G03G15/161 ,  G03G15/1675 ,  G03G15/5058 ,  G03G2215/0129 ,  G03G2215/1661

摘要： An image forming apparatus includes an image bearing member, an image forming unit for forming a toner image and a toner pattern comprising toner not to be transferred onto a recording medium for adjustment of a density of toner on a surface of the image bearing member, a nip forming member contacting the surface of the image bearing member to form a transfer nip therebetween, a transfer bias applicator for applying a transfer bias in which an alternating current component and a direct current component are superimposed to transfer the toner image onto the recording medium in the transfer nip, a first cleaning device to mechanically remove toner remaining on the image bearing member after passing through the transfer nip. The transfer bias applicator applies a charge eliminating bias to remove charge from toner in the toner pattern when the toner pattern passes through the transfer nip.

摘要翻译： 图像形成装置包括图像承载部件，用于形成调色剂图像的图像形成单元和包含不转印到用于调节图像承载部件的表面上的调色剂的密度的记录介质上的调色剂的调色剂图案， 夹持形成部件与图像承载部件的表面接触以在其间形成转印辊隙;转印偏压施加器，用于施加转印偏压，其中叠加交流分量和直流分量以将调色剂图像转印到记录介质上 转印辊隙，第一清洁装置，用于在通过转印辊隙之后机械地除去残留在图像承载部件上的调色剂。 当调色剂图案通过转印辊隙时，转印偏压施加器施加电荷消除偏压以从调色剂图案中的调色剂中去除电荷。

公开(公告)号：US20130004190A1

公开(公告)日：2013-01-03

申请号：US13483536

申请日：2012-05-30

申请人： Kenji SENGOKU ,  Hiromi OGIYAMA ,  Hiroyoshi HAGA ,  Tomokazu TAKEUCHI ,  Yasunobu SHIMIZU ,  Junpei FUJITA

发明人： Kenji SENGOKU ,  Hiromi OGIYAMA ,  Hiroyoshi HAGA ,  Tomokazu TAKEUCHI ,  Yasunobu SHIMIZU ,  Junpei FUJITA

IPC分类号： G03G15/16

CPC分类号： G03G15/1665 ,  G03G15/0189 ,  G03G15/0266 ,  G03G2215/0129

摘要： An image forming apparatus includes a transfer device to transfer a toner image from an image bearing member onto a recording medium, disposed opposite the image bearing member, a transfer bias power source to apply, between the image bearing member and the transfer device, a superimposed transfer bias in which a direct current (DC) component and an alternative current (AC) component are superimposed to transfer the toner image borne on the image bearing member to the recording medium, and a controller to change the superimposed bias that the transfer bias power source applies. The controller changes the levels of the DC component and the AC component of the superimposed transfer bias in a color mode from that in a monochrome mode to secure a return electric field in the superimposed transfer bias by which the toner is returned from the recording medium to the image bearing member.

摘要翻译： 图像形成装置包括：转印装置，用于将调色剂图像从图像承载部件转印到与图像承载部件相对设置的记录介质上;转印偏压电源，用于在图像承载部件和转印装置之间施加叠加 转印偏压，其中叠加直流（DC）分量和替代电流（AC）分量以将承载在图像承载部件上的调色剂图像转印到记录介质上;以及控制器，用于改变叠加的偏压，转印偏压功率 来源适用。 控制器将彩色模式中的叠加转印偏压的直流分量和交流分量的水平从单色模式中改变，以确保叠加的转印偏压中的返回电场，调色剂从记录介质返回到 图像承载部件。

公开(公告)号：US20120308250A1

公开(公告)日：2012-12-06

申请号：US13477724

申请日：2012-05-22

申请人： Yasunobu SHIMIZU ,  Hiroyoshi HAGA ,  Tomokazu TAKEUCHI ,  Hiromi OGIYAMA ,  Kenji SENGOKU ,  Junpei FUJITA

发明人： Yasunobu SHIMIZU ,  Hiroyoshi HAGA ,  Tomokazu TAKEUCHI ,  Hiromi OGIYAMA ,  Kenji SENGOKU ,  Junpei FUJITA

IPC分类号： G03G15/16

CPC分类号： G03G15/1645 ,  G03G2215/0129

摘要： An image forming apparatus, includes an image bearer to bear a toner image; a transfer member to transfer the toner image; a transfer bias applicator to apply a transfer bias to the transfer member, the transfer bias applicator including a direct current voltage source to apply a direct current transfer bias constituted by a direct current voltage to the transfer member; and a superimposed voltage source to apply a superimposed transfer bias in which an alternating current voltage is superimposed on a direct current voltage to the transfer member; and a controller to switch between a direct current transfer mode during which the direct current transfer bias is applied to transfer the toner image and a superimposed transfer mode during which the superimposed transfer bias is applied to transfer the toner image while the direct current voltage source and the superimposed voltage source are off.

摘要翻译： 一种图像形成装置，包括承载调色剂图像的图像载体; 转印构件以转印调色剂图像; 转印偏压施加器，用于向转印部件施加转印偏压，转印偏压施加器包括直流电压源，以将由直流电压构成的直流转印偏压施加到转印部件; 以及叠加电压源，以将叠加的转印偏压施加到转印部件的直流电压上; 以及控制器，用于在施加直流传递偏压以转印调色剂图像的直流传输模式和施加叠加的转印偏压以在直流电压源和 叠加的电压源关闭。

公开(公告)号：US20160202644A1

公开(公告)日：2016-07-14

申请号：US15076031

申请日：2016-03-21

申请人： Kenji SENGOKU ,  Hiromi OGIYAMA ,  Hiroyoshi HAGA ,  Tomokazu TAKEUCHI ,  Yasunobu SHIMIZU ,  Junpei FUJITA

发明人： Kenji SENGOKU ,  Hiromi OGIYAMA ,  Hiroyoshi HAGA ,  Tomokazu TAKEUCHI ,  Yasunobu SHIMIZU ,  Junpei FUJITA

IPC分类号： G03G15/16

CPC分类号： G03G15/1665 ,  G03G15/0189 ,  G03G15/0266 ,  G03G2215/0129

摘要： An image forming apparatus includes an image bearing member to bear a toner image charged with a predetermined polarity, and a power source to apply a bias to a transfer portion to transfer the toner image from the image bearing member to a recording medium, a polarity of the bias being changed alternately. The toner image formed with toner of a plurality of colors is transferred in a color mode and the toner image formed with toner of a single color is transferred in a monochrome mode. The bias includes a peak voltage with a polarity that returns toner from the recording medium to the image bearing member. An absolute value of the peak voltage in the color mode is equal to or greater than an absolute value of the peak voltage in the monochrome mode.

摘要翻译： 图像形成装置包括：图像承载部件，用于承载以预定极性充电的调色剂图像;以及电源，用于向转印部分施加偏压以将调色剂图像从图像承载部件转印到记录介质，极性 偏差交替变化。 用多种颜色的调色剂形成的调色剂图像以彩色模式转印，并且用单色调色剂形成的调色剂图像以单色模式传送。 该偏压包括具有将调色剂从记录介质返回到图像承载部件的极性的峰值电压。 彩色模式下的峰值电压的绝对值等于或大于单色模式下的峰值电压的绝对值。

公开(公告)号：US20130094870A1

公开(公告)日：2013-04-18

申请号：US13633341

申请日：2012-10-02

申请人： Yasunobu SHIMIZU ,  Tomokazu TAKEUCHI ,  Hiroyoshi HAGA ,  Hiromi OGIYAMA ,  Kenji SENGOKU

发明人： Yasunobu SHIMIZU ,  Tomokazu TAKEUCHI ,  Hiroyoshi HAGA ,  Hiromi OGIYAMA ,  Kenji SENGOKU

IPC分类号： G03G15/16

CPC分类号： G03G15/1605 ,  G03G15/1675

摘要： An image transfer device includes an image bearing member, a pair of opposed transfer members, a media separator, and an electrical bias applicator. The image bearing member defines an image bearing surface on which a toner image is created. The pair of opposed transfer members is disposed opposite each other via the image bearing member to form a transfer nip therebetween through which a recording medium is passed. One of the transfer members defines a first electrode to which a first electrical bias is applied. The media separator defines a second electrode downstream from the transfer nip to which a second electrical bias is applied. The electrical bias applicator includes a power supply connectable with each of the first and second electrodes to supply the first electrical bias to the first electrode and the second electrical bias to the second electrode.

摘要翻译： 图像转印装置包括图像承载部件，一对相对的转印部件，介质分离器和电偏压施加器。 图像承载构件限定其上产生调色剂图像的图像承载表面。 一对相对的转印部件经由图像承载部件彼此相对设置，以在记录介质通过该转印辊隙之间形成转印辊隙。 传输构件之一限定了施加第一电偏压的第一电极。 介质分离器限定了施加第二电偏压的转印辊隙下游的第二电极。 电偏压施加器包括可与第一和第二电极中的每一个连接的电源，以将第一电偏压提供给第一电极，并将第二电偏压提供给第二电极。

公开(公告)号：US20140341605A1

公开(公告)日：2014-11-20

申请号：US14327169

申请日：2014-07-09

申请人： Tomokazu TAKEUCHI ,  Hiroyoshi HAGA ,  Yasunobu SHIMIZU ,  Hiromi OGIYAMA ,  Kenji SENGOKU ,  Junpei FUJITA

发明人： Tomokazu TAKEUCHI ,  Hiroyoshi HAGA ,  Yasunobu SHIMIZU ,  Hiromi OGIYAMA ,  Kenji SENGOKU ,  Junpei FUJITA

IPC分类号： G03G15/00 ,  G03G15/16

CPC分类号： G03G15/80 ,  G03G15/1665 ,  G03G2215/0129

摘要： An image forming apparatus includes a transfer unit configured to transfer a toner image onto a recording medium; a power supply unit configured to output one of an alternating-current-based voltage including at least an alternating-current voltage and a direct-current voltage to the transfer unit; and a power supply control unit configured to cause the power supply unit to start switching to the alternating-current-based voltage a first time after the power supply unit stops outputting the direct-current voltage in the case that output of the power supply unit is switched to the alternating-current-based voltage, and cause the power supply unit to start switching to the direct-current voltage a second time after the power supply unit stops outputting the alternating-current-based voltage in the case that output of the power supply unit is switched to the direct-current voltage. The second time is longer than the first time.

摘要翻译： 图像形成装置包括被配置为将调色剂图像转印到记录介质上的转印单元; 电源单元，被配置为向所述传送单元输出至少包括交流电压和直流电压的交流电压中的一个; 以及电源控制单元，被配置为在所述电源单元的输出为所述情况下，在所述供电单元停止输出所述直流电压之后，使所述电源单元开始切换到所述交流电压 切换到基于交流电压，并且在电力输出端的情况下，在电源单元停止输出基于交流电压之后，使电源单元再次开始切换到直流电压 供电单元切换到直流电压。 第二次比第一次还要长。

公开(公告)号：US20160216682A1

公开(公告)日：2016-07-28

申请号：US15003938

申请日：2016-01-22

申请人： Kenji SENGOKU ,  Kazuki YOGOSAWA ,  Mitsuru TAKAHASHI ,  Seiichi KOGURE ,  Kenji SUGIURA ,  Hiroyoshi HAGA ,  Junpei FUJITA ,  Takehide MIZUTANI ,  Tatsuya OHSUGI ,  Yuuji WADA

发明人： Kenji SENGOKU ,  Kazuki YOGOSAWA ,  Mitsuru TAKAHASHI ,  Seiichi KOGURE ,  Kenji SUGIURA ,  Hiroyoshi HAGA ,  Junpei FUJITA ,  Takehide MIZUTANI ,  Tatsuya OHSUGI ,  Yuuji WADA

IPC分类号： G03G15/16 ,  G03G21/00

CPC分类号： G03G21/00 ,  G03G15/161 ,  G03G21/0035 ,  G03G21/0058 ,  G03G21/0076 ,  G03G2215/0129 ,  G03G2221/001

摘要： A cleaning device includes a cleaner, a casing, and an exit seal. The cleaner is configured to remove toner from a cleaning target. The casing accommodates the cleaner. The exit seal is attached to the casing and has a free end contacting the cleaning target at a position downward from the cleaner in a direction of movement of the cleaning target and an attached end attached to the casing. A space is disposed between a surface of the cleaning target and an opposite face of the exit seal opposite the cleaning target. The space includes an opening at a lateral end of the exit seal. The exit seal contacts the cleaning target from a trailing direction of the exit seal and seals the opening at at least an attached end side of the exit seal.

摘要翻译： 清洁装置包括清洁器，壳体和出口密封件。 清洁器配置为从清洁目标中去除碳粉。 外壳容纳清洁剂。 出口密封件附接到壳体，并且在清洁对象的移动方向和附接到壳体的附接端部上，在从清洁器向下方的位置处接触清洁对象的自由端。 在清洁对象的表面和与清洁对象物相对的出口密封件的相对面之间设置有空间。 该空间包括在出口密封件的侧端处的开口。 出口密封件从出口密封件的拖尾方向接触清洁目标，并且在出口密封件的至少一个附接端侧密封开口。

公开(公告)号：US20130189002A1

公开(公告)日：2013-07-25

申请号：US13796167

申请日：2013-03-12

申请人： Osamu ICHIHASHI ,  Ryuuichi MIMBU ,  Kenji SENGOKU ,  Junpei FUJITA

发明人： Osamu ICHIHASHI ,  Ryuuichi MIMBU ,  Kenji SENGOKU ,  Junpei FUJITA

IPC分类号： G03G15/16

CPC分类号： G03G15/161 ,  G03G15/0136 ,  G03G15/1615

摘要： A transfer device includes a plurality of rollers, a rotatable intermediate transfer belt wound around and stretched between the rollers, a transfer member disposed in the inner loop of the belt and facing an image bearing member of an image forming apparatus disposed at an outer circumference of the belt, to transfer an image formed onto the surface of the image bearing member when contacting the intermediate transfer belt, and a position adjuster to adjust the position of the intermediate transfer belt at different positions relative to the image bearing member. The positions include a contact state in which the intermediate transfer belt applied with a predetermined tension contacts the image bearing member, a first separation state in which the tensioned intermediate transfer belt separates from the image bearing member, and a second separation state in which the intermediate transfer belt separates further away from the image bearing member.

摘要翻译： 传送装置包括多个辊，在辊之间缠绕并拉伸的可转动的中间转印带;传送构件，其设置在带的内环中，并且面向设置在外周的成像设备的图像承载部件 带，用于当接触中间转印带时将形成在图像承载部件的表面上的图像和位置调节器相对于图像承载部件调整在不同位置的中间转印带的位置。 这些位置包括其中施加有预定张力的中间转印带与图像承载部件接触的接触状态，其中张紧的中间转印带与图像承载部件分离的第一分离状态和第二分离状态，其中中间体 转印带远离图像承载部件分离。

公开(公告)号：US20130322935A1

公开(公告)日：2013-12-05

申请号：US13957993

申请日：2013-08-02

申请人： Osamu ICHIHASHI ,  Ryuuichi MIMBU ,  Kenji SENGOKU ,  Junpei FUJITA

发明人： Osamu ICHIHASHI ,  Ryuuichi MIMBU ,  Kenji SENGOKU ,  Junpei FUJITA

IPC分类号： G03G15/16

CPC分类号： G03G15/1665 ,  G03G15/167 ,  G03G2215/0129 ,  G03G2215/0193

摘要： An image forming apparatus includes a contact member supplied with voltage by a voltage application device, to contact an object; a rotary member rotatable about a rotation fulcrum shaft fixed to an image forming apparatus, to support the contact member; an biasing member to urge the rotary member to press the contact member against the object; a rotary conductive member fixed to the rotary member and connected electrically to the contact member; a main body side conductive member fixed to the rotation fulcrum shaft at the main body side and connected electrically to the voltage application device; and a conductive connector provided along the rotation fulcrum shaft to contact the rotary conductive member in an axial direction to connect electrically the main body side conductive member and the rotary conductive member. A contact of the conductive connector and a contact of the rotary conductive member are unfixed.

摘要翻译： 图像形成装置包括由电压施加装置供给电压的接触构件，以接触物体; 旋转构件，可绕固定到图像形成装置的旋转支点轴旋转，以支撑所述接触构件; 偏压构件，其推动所述旋转构件将所述接触构件压靠在所述物体上; 旋转导电构件，其固定到所述旋转构件并且电连接到所述接触构件; 主体侧导电构件，其固定在主体侧的旋转支点轴上，并与电压施加装置电连接; 以及沿着旋转支点轴设置的导电连接器，以沿轴向接触旋转导电构件，以将主体侧导电构件和旋转导电构件电连接。 导电连接器和旋转导电构件的触点的接触不固定。

公开(公告)号：US20110293312A1

公开(公告)日：2011-12-01

申请号：US13108267

申请日：2011-05-16

申请人： Ryuuichi MIMBU ,  Kenji SENGOKU ,  Jumpei FUJITA

发明人： Ryuuichi MIMBU ,  Kenji SENGOKU ,  Jumpei FUJITA

IPC分类号： G03G15/16

CPC分类号： G03G15/1645

摘要： An image foaming apparatus includes an image bearing member, a transfer unit, and a pressing mechanism. The image bearing member bears a toner image. The transfer unit is disposed opposite the image bearing member and is swingably and detachably held within a main body of the image forming apparatus. The transfer unit includes a transfer member and a power receiving electrode. The transfer member is disposed opposite the image bearing member, to contact the image bearing member to form a transfer nip therebetween and transfer the toner image on the image bearing member onto a recording medium in the transfer nip. The power receiving electrode receives power from the main body of the image forming apparatus. The pressing mechanism presses the transfer unit against the image bearing member and includes a power supply electrode that contacts the power receiving electrode of the transfer unit to supply power thereto.

摘要翻译： 图像发泡装置包括图像承载部件，转印单元和按压机构。 图像承载部件承载调色剂图像。 转印单元与图像承载部件相对设置并且可摆动地和可拆卸地保持在图像形成装置的主体内。 转印单元包括转印元件和受电电极。 传送构件与图像承载构件相对设置，以与图像承载构件接触以在其间形成转印区域，并将图像承载构件上的调色剂图像转印到转印辊隙中的记录介质上。 受电极从图像形成装置的主体接收电力。 按压机构将转印单元压靠图像承载部件，并且包括与转印单元的受电极接触以向其供电的供电电极。