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公开(公告)号：US20140248064A1
公开(公告)日：2014-09-04
申请号：US14173122
申请日：2014-02-05
IPC分类号： G03G15/16
CPC分类号： G03G15/1675 , G03G15/1605
摘要： An image forming apparatus includes a rotatable image bearing member, a nip forming member, and a power source. The rotatable image bearing member bears a toner image on a surface thereof and rotates. The nip forming member contacts the surface of the image bearing member to form a transfer nip therebetween. The power source applies a transfer bias to the transfer nip to transfer the toner image from the image bearing member onto a recording medium interposed in the transfer nip. The transfer bias includes a superimposed transfer bias in which an alternating current (AC) component is superimposed on a direct current (DC) component and a polarity of the superimposed transfer bias changes with time. A phase difference between an AC voltage and an AC current output from the power source is equal to or less than 0.47 cycles.
摘要翻译： 图像形成装置包括可旋转图像承载部件，辊隙形成部件和动力源。 可旋转图像承载部件在其表面上承载调色剂图像并旋转。 辊隙形成构件接触图像承载构件的表面以在它们之间形成转印辊隙。 电源将转印偏压施加到转印压区，以将调色剂图像从图像承载部件转印到介于转印辊隙中的记录介质上。 转印偏压包括其中交流（AC）分量叠加在直流（DC）分量上并且叠加转印偏压的极性随时间变化的叠加转印偏压。 交流电压与从电源输出的交流电流之间的相位差等于或小于0.47个周期。
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公开(公告)号：US20140029988A1
公开(公告)日：2014-01-30
申请号：US13918088
申请日：2013-06-14
IPC分类号： G03G15/16
CPC分类号： G03G15/1665 , G03G15/16 , G03G15/1675
摘要： A novel image forming apparatus includes a photoreceptor to bear an electrostatic latent image on a surface thereof, a developing device to develop the electrostatic latent image into a toner image, an intermediate transfer member onto which the electrostatic latent image is transferred, a primary transfer member to apply a primary transfer bias to the intermediate transfer member to transfer the toner image thereto, a secondary transfer member supplied with a secondary transfer bias to transfer the toner image from the intermediate transfer member onto a recording medium, and a transfer bias power source to selectively apply to the secondary transfer member one of a secondary transfer bias consisting of a direct current (DC) voltage in a DC transfer mode and a secondary transfer bias consisting of a superimposed bias in which an alternating voltage is superimposed on a DC voltage.
摘要翻译： 一种新颖的图像形成装置包括：感光体，其表面具有静电潜像;显影装置，用于将静电潜像显影成调色剂图像;静电潜像转印到其上的中间转印部件;一次转印部件 将第一转印偏压施加到中间转印部件以将调色剂图像转印到其上，提供二次转印偏压的二次转印部件将调色剂图像从中间转印部件转印到记录介质上，以及转印偏压电源 选择性地向二次转印构件施加由DC传递模式中的直流（DC）电压和由交流电压叠加在直流电压上的叠加偏压组成的二次转印偏压构成的二次转印偏压。
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公开(公告)号：US20140270830A1
公开(公告)日：2014-09-18
申请号：US14287639
申请日：2014-05-27
IPC分类号： G03G15/16
CPC分类号： G03G15/6535 , G03G15/1675 , G03G15/6532 , G03G2215/00772 , G03G2215/00776
摘要： An image forming apparatus includes a transfer device to transfer a toner image formed on an image bearing member onto a recording medium, a sheet separation device to separate the recording medium from the image bearing member, a sheet separation bias application device to apply to the sheet separation device a sheet separation bias in which an alternating current (AC) component is superimposed on a direct current (DC) component, and a transfer bias application device to selectively apply to the transfer device one of a DC transfer bias having a DC component and a superimposed transfer bias in which an AC component is superimposed on a DC component. Upon application of the superimposed transfer bias to the transfer device, the sheet separation bias applied to the sheet separation device is changed from the sheet separation bias applied upon application of the DC transfer bias to the transfer device.
摘要翻译： 图像形成装置包括：转印装置，用于将形成在图像承载部件上的调色剂图像转印到记录介质上;片材分离装置，用于将记录介质与图像承载部件分离;片材分离偏置施加装置， 分离装置，其中交流（AC）分量叠加在直流（DC）分量上的薄片分离偏压，以及转印偏压施加装置，用于选择性地向转印装置施加具有DC分量的DC转印偏压和 其中AC分量叠加在DC分量上的叠加转印偏压。 当向转印装置施加叠加的转印偏压时，施加到纸张分离装置的纸张分离偏压从施加到转印装置上的纸张分离偏压改变。
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公开(公告)号：US20150261143A1
公开(公告)日：2015-09-17
申请号：US14728641
申请日：2015-06-02
IPC分类号： G03G15/16
CPC分类号： G03G15/1665 , G03G15/1605 , G03G15/1675
摘要： An image forming apparatus includes an image bearing member, a transfer member disposed facing the image bearing member to form a transfer region therebetween, a transfer bias application device to apply to the transfer region a transfer bias including a direct current (DC) component and an alternating current (AC) component to transfer the toner image onto the recording medium as the recording medium passes through the transfer region, and a controller operatively connected to the transfer bias application device to allow, during a bias change period in a sheet absent period in which the image bearing member rotates and no recording medium passes through the transfer region, the transfer bias application device to selectively apply to the transfer region one of the transfer bias without the AC component and the transfer bias with a peak-to-peak voltage of the AC component less than that applied in image formation.
摘要翻译： 图像形成装置包括：图像承载部件，与图像承载部件相对配置的转印部件，在其间形成转印区域;转印偏压施加装置，向转印区域施加包含直流（DC）成分和 交流电（AC）分量，以在记录介质通过传送区域时将调色剂图像转印到记录介质上;以及控制器，可操作地连接到转印偏压施加装置，以允许在片材缺失期间的偏差改变期间 图像承载部件旋转并且没有记录介质通过转印区域，转印偏压施加装置选择性地向转印区域施加一个转印偏压，而没有交流分量和转印偏压，峰 - 峰电压为 AC分量小于图像形成中应用的分量。
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公开(公告)号：US20130136468A1
公开(公告)日：2013-05-30
申请号：US13666474
申请日：2012-11-01
CPC分类号： G03G15/0189 , G03G15/1605 , G03G15/1675
摘要： An image forming apparatus includes an image bearing member to bear a toner image on a surface thereof, a transfer device to transfer the toner image onto a recording medium, and a transfer bias power source to apply to the transfer device a superimposed transfer bias in which an alternating current (AC) component is superimposed on a direct current (DC) component in a superimposed transfer mode to transfer the toner image. The superimposed transfer bias has a waveform in which a first polarity in a direction of transferring the toner image onto the recording medium and a second polarity opposite the first polarity switch alternately. The superimposed transfer bias is output such that a standard value of each of the DC component and the AC component is multiplied by a respective correction ratio, and the correction ratio of the DC component is different from that of the AC component.
摘要翻译： 图像形成装置包括在其表面上承载调色剂图像的图像承载部件，将调色剂图像转印到记录介质上的转印装置和转印偏压电源，以向转印装置施加叠加的转印偏压，其中 交流（AC）分量以重叠传送模式叠加在直流（DC）分量上以转印调色剂图像。 叠加的转印偏压具有波形，其中在将调色剂图像转印到记录介质上的方向上的第一极性和与第一极性开关相反的第二极性交替。 输出叠加的转印偏压，使得每个DC分量和AC分量的标准值乘以相应的校正比，并且DC分量的校正比不同于AC分量的校正比。
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公开(公告)号：US20160154347A1
公开(公告)日：2016-06-02
申请号：US15013627
申请日：2016-02-02
IPC分类号： G03G15/16
CPC分类号： G03G15/1665 , G03G15/1675
摘要： An image forming apparatus includes a transfer bias output device and an information receiving device. The transfer bias output device outputs a transfer bias including a superimposed bias composed of an AC bias superimposed on a DC bias to form a transfer electric field in a transfer nip between an image bearing member bearing a toner image and a nip forming member, to transfer the toner image onto a recording medium in the transfer nip. A controller operatively connected to the information receiving device and the transfer bias output device causes the transfer bias output device to change a target output of a peak-to-peak voltage of the AC bias based on information received by the information receiving device that affects transfer of the toner image and to reduce a target output of the DC bias as the target output value of the peak-to-peak voltage of the AC bias increases.
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公开(公告)号：US20160238966A1
公开(公告)日：2016-08-18
申请号：US15012144
申请日：2016-02-01
申请人： Yuki OSHIKAWA , Akira AZAMI , Yoshiko OGAWA , Masaaki YAMADA , Yoshihiro FUJIWARA , Noriyuki KIMURA , Yoshiharu KISHI , Yasunobu SHIMIZU , Junichi MATSUMOTO , Yoshiyuki FUKUDA , Yuuji ISHIKURA , Kei SAITO
发明人： Yuki OSHIKAWA , Akira AZAMI , Yoshiko OGAWA , Masaaki YAMADA , Yoshihiro FUJIWARA , Noriyuki KIMURA , Yoshiharu KISHI , Yasunobu SHIMIZU , Junichi MATSUMOTO , Yoshiyuki FUKUDA , Yuuji ISHIKURA , Kei SAITO
IPC分类号： G03G15/09
CPC分类号： G03G15/0812 , G03G15/0893 , G03G15/09 , G03G2215/0132 , G03G2215/0838
摘要： A developing device includes a developer bearer disposed facing a latent image bearer in a developing range to transport developer by rotation, a support to support the developer bearer and including a holder mount, a rod-shaped developer regulator disposed facing a surface of the developer bearer across a gap, and a holder secured to the holder mount of the support to hold the rod-shaped developer regulator. The rod-shaped developer regulator extends in an axial direction of the developer bearer.
摘要翻译： 显影装置包括面向显影范围内的潜像承载体的显影剂承载件，用于通过旋转传送显影剂;支撑件，用于支撑显影剂载体并且包括保持器支座;杆状显影剂调节器，其面向显影剂载体的表面 跨过间隙，以及固定到支撑件的支架安装件上以保持杆状显影剂调节器的保持器。 棒状显影剂调节器在显影剂载体的轴向方向上延伸。
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8.发明申请公开(公告)号：US20120008991A1
公开(公告)日：2012-01-12
申请号：US13158073
申请日：2011-06-10
申请人： Yasunobu SHIMIZU
发明人： Yasunobu SHIMIZU
IPC分类号： G03G15/14
CPC分类号： G03G15/0136 , G03G15/0131 , G03G15/1675 , G03G2215/00059 , G03G2215/0129 , G03G2215/0193
摘要： An image transfer system comprises an image bearer and an opposed member having a contact surface contacting a recording medium and opposed to a surface of the image bearer to form a transfer nip. A pressing device applies pressure to the transfer nip. An engaging and disengaging member engages and disengages the contact surface from the surface of the image bearer. A transfer bias device applies a transfer bias transferring an image formed on the image bearer onto the recording medium conveyed and pinched at the transfer nip. The image is composed of an adjustment pattern formed on a portion of the image bearer corresponding to an interval between recording mediums successively conveyed through the transfer nip. The engaging and disengaging device disengages the contact surface from the surface of the image bearer to form a gap therebetween when the adjustment pattern passes therethrough.
摘要翻译： 图像传送系统包括图像载体和相对的构件，其具有接触记录介质并与图像载体的表面相对的接触表面，以形成转印夹持部。 压力装置向转印压区施加压力。 接合和分离构件将接触表面与图像承载体的表面接合并脱离接合表面。 转印偏压装置将形成在图像载体上的图像转印到在转印压区上输送和夹持的记录介质上。 图像由形成在图像载体的一部分上的调整图形组成，该图像载体对应于通过转印夹持部连续输送的记录介质之间的间隔。 接合和脱离装置使接触表面与图像载体的表面脱离，以在调节图案通过其时在其间形成间隙。
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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
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。
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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。
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