公开(公告)号：US20100221029A1

公开(公告)日：2010-09-02

申请号：US12708983

申请日：2010-02-19

申请人： Ryuichi MINBU ,  Kenji SENGOKU ,  Junpei FUJITA ,  Osamu ICHIHASHI

发明人： Ryuichi MINBU ,  Kenji SENGOKU ,  Junpei FUJITA ,  Osamu ICHIHASHI

IPC分类号： G03G15/16

CPC分类号： G03G15/0131 ,  G03G15/161

摘要： To provide an image forming apparatus capable of increasing the life of a rotating cam while preventing the occurrence of a shock jitter and transfer failure. The image forming apparatus is configured to execute a forced movement process for rotating the rotating cam to forcibly move a secondary transfer roller against a biasing force of a bias coil spring at a pre-entry timing prior to the entry of the front edge of a recording sheet into a secondary transfer position, and a pressure intensifying process for rotating the rotating cam to increase transfer pressure at a timing immediately after the entry of the front edge of the recording sheet into the secondary transfer position. As the forced movement process, the image forming apparatus executes, alternately, a first forced movement process for normally driving and rotating the rotating cam, and a second forced movement process for inversely driving and rotating the rotating cam, at a predetermined timing.

摘要翻译： 提供能够在防止发生震动抖动和转印失败的同时延长旋转凸轮的寿命的图像形成装置。 图像形成装置被配置为执行强制移动处理，用于使旋转凸轮旋转，以抵抗偏置螺旋弹簧的偏置力强迫移动二次转印辊，在进入记录的前边缘之前的预录入时刻 以及用于使旋转凸轮旋转以在紧接在记录纸的前边缘进入二次转印位置之后的定时增加转印压力的增压过程。 作为强制移动处理，图像形成装置交替地执行用于正常地驱动和旋转旋转凸轮的第一强制移动处理和用于在预定定时反转驱动和旋转旋转凸轮的第二强制移动处理。

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：US20120224879A1

公开(公告)日：2012-09-06

申请号：US13369805

申请日：2012-02-09

申请人： Junpei FUJITA ,  Ryuuichi Mimbu ,  Kenji Sengoku ,  Osamu Ichihashi

发明人： Junpei FUJITA ,  Ryuuichi Mimbu ,  Kenji Sengoku ,  Osamu Ichihashi

IPC分类号： G03G21/20 ,  G03G15/01

CPC分类号： G03G15/161 ,  G03G15/0189 ,  G03G15/162 ,  G03G2215/0129

摘要： An image forming apparatus includes a plurality of image bearing members to bear a toner image on a surface thereof, a transfer device including a plurality of transfer members and an endless belt formed into a loop and entrained around the transfer members, to transfer the toner images from the image bearing members onto the surface of the belt so that the toner images are superimposed one atop the other on the belt to form a composite toner image, a plurality of cleaning devices including a cleaning blade to remove residual toner remaining on the image bearing members after transfer of the toner images onto the belt, and a plurality of heaters disposed inside the loop formed by the belt. Each of the heaters is disposed between adjacent image bearing members. The belt is interposed between the plurality of heaters and the plurality of image bearing members.

摘要翻译： 图像形成装置包括：多个图像承载部件，用于在其表面上承载调色剂图像;传送装置，包括多个传送部件和环形带，其形成为环状并夹带在传送部件周围，以便传送调色剂图像 从图像承载部件移动到带的表面上，使得调色剂图像彼此叠加在带上以形成复合调色剂图像，多个清洁装置包括清洁刮板以除去保留在图像承载上的残留调色剂 将调色剂图像转印到带上的部件，以及设置在由带形成的环内的多个加热器。 每个加热器设置在相邻的图像承载部件之间。 皮带介于多个加热器和多个图像承载部件之间。

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：US20110206399A1

公开(公告)日：2011-08-25

申请号：US13033302

申请日：2011-02-23

申请人： Junpei FUJITA ,  Ryuuichi Mimbu ,  Kenji Sengoku ,  Osamu Ichihashi

发明人： Junpei FUJITA ,  Ryuuichi Mimbu ,  Kenji Sengoku ,  Osamu Ichihashi

IPC分类号： G03G15/01

CPC分类号： G03G15/50 ,  G03G15/0136 ,  G03G15/1615 ,  G03G2215/0129 ,  G03G2215/0161

摘要： An image forming apparatus includes an endless intermediate transfer belt rotatably stretched over a plurality of rollers, and a detector to read a pattern on the intermediate transfer belt. One of the rollers includes a first portion disposed opposite an area on the intermediate transfer belt including a pattern passing position, and a second portion not including a pattern passing position. The first portion has a diameter smaller than that of the second portion thereof, and an elastic material is superimposed on the second portion only. The detector is disposed between a second roller disposed upstream of the first roller and a third roller disposed downstream of the first roller, and opposite the intermediate transfer belt.

摘要翻译： 图像形成装置包括可旋转地延伸在多个辊上的环形中间转印带，以及读取中间转印带上的图案的检测器。 其中一个辊包括与包括图案通过位置的中间转印带上的区域相对设置的第一部分和不包括图案通过位置的第二部分。 第一部分的直径小于其第二部分的直径，弹性材料仅重叠在第二部分上。 检测器设置在设置在第一辊的上游的第二辊和设置在第一辊的下游并与中间转印带相对的第三辊之间。

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：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。