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91. 发明授权

US09291934B2 Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US09291934B2
公开(公告)日：2016-03-22
申请号：US13666474
申请日：2012-11-01
申请人： Yasunobu Shimizu , Hiromi Ogiyama , Hirokazu Ishii , Shinya Tanaka , Keigo Nakamura
发明人： Yasunobu Shimizu , Hiromi Ogiyama , Hirokazu Ishii , Shinya Tanaka , Keigo Nakamura
IPC分类号： G03G15/16 , G03G15/01
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。

92. 发明授权

US09285722B2 Image forming apparatus having transfer bias control 有权
标题翻译：具有转印偏压控制的图像形成装置
公开(公告)号：US09285722B2
公开(公告)日：2016-03-15
申请号：US13893594
申请日：2013-05-14
申请人： Shinya Tanaka , Hirokazu Ishii , Yasunobu Shimizu , Keigo Nakamura
发明人： Shinya Tanaka , Hirokazu Ishii , Yasunobu Shimizu , Keigo Nakamura
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.
摘要翻译：图像形成装置包括转印偏压输出装置和信息接收装置。转印偏压输出装置输出包括由叠加在DC偏压上的AC偏压组成的叠加偏压的转印偏压，以在承载调色剂图像的图像承载部件和辊隙形成部件之间的转印辊隙中形成转印电场，以转印调色剂图像转印到转印辊隙中的记录介质上。可操作地连接到信息接收装置和转移偏置输出装置的控制器使得转移偏置输出装置基于影响转移的信息接收装置接收的信息来改变AC偏压的峰峰值电压的目标输出并且当AC偏压的峰 - 峰电压的目标输出值增加时，减小DC偏压的目标输出。

93. 发明授权

US09164462B2 Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US09164462B2
公开(公告)日：2015-10-20
申请号：US14287639
申请日：2014-05-27
申请人： Keigo Nakamura , Hirokazu Ishii , Yasunobu Shimizu , Hiromi Ogiyama , Shinya Tanaka
发明人： Keigo Nakamura , Hirokazu Ishii , Yasunobu Shimizu , Hiromi Ogiyama , Shinya Tanaka
IPC分类号： G03G15/16 , G03G15/00
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。

94. 发明授权

US09122207B2 Image forming apparatus and transfer bias application device therein 有权
标题翻译：图像形成装置和转印偏压施加装置
公开(公告)号：US09122207B2
公开(公告)日：2015-09-01
申请号：US13718395
申请日：2012-12-18
申请人： Keigo Nakamura , Yasunobu Shimizu , Hiromi Ogiyama , Hirokazu Ishii , Shinya Tanaka
发明人： Keigo Nakamura , Yasunobu Shimizu , Hiromi Ogiyama , Hirokazu Ishii , Shinya Tanaka
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。

95. 发明授权

US09075350B2 Image forming apparatus to maintain adequate transferability of toner to a recording medium 有权
标题翻译：图像形成装置，以保持调色剂足够的可转印性到记录介质
公开(公告)号：US09075350B2
公开(公告)日：2015-07-07
申请号：US14022512
申请日：2013-09-10
申请人： Shinya Tanaka , Hirokazu Ishii , Yasunobu Shimizu , Keigo Nakamura
发明人： Shinya Tanaka , Hirokazu Ishii , Yasunobu Shimizu , Keigo Nakamura
IPC分类号： G03G15/00 , G03G15/16
CPC分类号： G03G15/16 , G03G15/1605 , G03G15/1675 , G03G2215/00717
摘要： An image forming apparatus includes a power source to output a voltage having an alternating waveform to transfer a toner image from an image bearing member to a recording medium. A time-averaged value (Vave) of the voltage has a polarity in a transfer direction, in which the toner image is transferred from the image bearing member to the recording medium, and an absolute value of the time-averaged value is greater than a midpoint value (Voff) of the voltage intermediate between a maximum value and a minimum value of the voltage. As a roughness of the recording medium increases, a duty ratio (Duty) expressed by A/(A+B) is reduced, where A is an area of the waveform of the voltage in a return direction opposite the transfer direction relative to the midpoint value in one cycle and B is an area in the transfer direction relative to the midpoint value.
摘要翻译：图像形成装置包括用于输出具有交替波形的电压的电源，以将调色剂图像从图像承载部件转印到记录介质。电压的时间平均值（Vave）在传送方向上具有调色剂图像从图像承载部件传送到记录介质的极性，并且时间平均值的绝对值大于电压的最大值和最小值之间的电压的中点值（Voff）。随着记录介质的粗糙度的增加，由A /（A + B）表示的占空比（Duty）减小，其中A是相对于中点在与传送方向相反的返回方向上的电压波形的面积一个循环中的值，B是相对于中点值的传送方向的面积。

96. 发明授权

US08934822B2 Transfer device and image forming apparatus 有权
标题翻译：转印装置和图像形成装置
公开(公告)号：US08934822B2
公开(公告)日：2015-01-13
申请号：US13646898
申请日：2012-10-08
申请人： Ryuuichi Mimbu , Shinya Tanaka , Hirokazu Ishii , Yasunobu Shimizu , Keigo Nakamura , Hiromi Ogiyama , Kenji Sengoku
发明人： Ryuuichi Mimbu , Shinya Tanaka , Hirokazu Ishii , Yasunobu Shimizu , Keigo Nakamura , Hiromi Ogiyama , Kenji Sengoku
IPC分类号： G03G15/20 , G03G21/00 , G03G15/16
CPC分类号： G03G15/168
摘要： A transfer device comprises a freely rotatable transferring member contacting an image bearing member to form a transfer nip therebetween; a transfer bias applying member to apply a first bias created by superimposing an alternating current component on a direct current component to the transferring member to transfer a toner image borne on the image bearing member to a recording medium in the transfer nip; and an applicator to apply a protective agent to a surface of the transferring member.
摘要翻译：传送装置包括可自由旋转的传送构件，其与图像承载构件接触以在它们之间形成传送辊隙; 转印偏压施加构件，用于将通过将交流分量叠加在直流分量上产生的第一偏压施加到转印构件，以将承载在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; 以及施加器以将保护剂施加到所述转印构件的表面。

97. 发明授权

US08787806B2 Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US08787806B2
公开(公告)日：2014-07-22
申请号：US13602840
申请日：2012-09-04
申请人： Keigo Nakamura , Hirokazu Ishii , Yasunobu Shimizu , Hiromi Ogiyama , Shinya Tanaka
发明人： Keigo Nakamura , Hirokazu Ishii , Yasunobu Shimizu , Hiromi Ogiyama , Shinya Tanaka
IPC分类号： G03G15/14 , G03G15/16 , G03G15/00
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。

98. 发明申请

US20130164011A1 IMAGE FORMING APPARATUS 有权
标题翻译：图像形成装置
公开(公告)号：US20130164011A1
公开(公告)日：2013-06-27
申请号：US13718395
申请日：2012-12-18
申请人： Keigo Nakamura , Yasunobu Shimizu , Hiromi Ogiyama , Hirokazu Ishii , Shinya Tanaka
发明人： Keigo Nakamura , Yasunobu Shimizu , Hiromi Ogiyama , Hirokazu Ishii , Shinya Tanaka
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。

99. 发明授权

US08290411B2 Image forming apparatus having a pre-transfer neutralizing device to reduce an electric potential to facilitate separation 有权
标题翻译：具有预转移中和装置的图像形成装置，以减少电位以便于分离
公开(公告)号：US08290411B2
公开(公告)日：2012-10-16
申请号：US12497164
申请日：2009-07-02
申请人： Hirokazu Ishii
发明人： Hirokazu Ishii
IPC分类号： G03G15/16
CPC分类号： G03G15/045 , G03G15/169
摘要： An image forming apparatus including a latent image bearing member, a charger to evenly charge a surface of the latent image bearing member, an electrostatic latent image forming device to form an electrostatic latent image on the surface of the latent image bearing member, a developing device to develop the electrostatic latent image into a toner image using toner, a transfer bias application device to apply a transfer bias to an image transfer area where the latent image bearing member faces a recording medium, a pre-transfer neutralizing device to reduce an electric potential at a portion on the surface of the latent image bearing member, a surface electric potential detector to detect an electric potential at the surface of the latent image bearing member, and a radiation amount control device to control an amount of radiation from the pre-transfer neutralizing device based on a detection result obtained by the surface electric potential detector.
摘要翻译：一种图像形成装置，包括潜像承载部件，用于对潜像承载部件的表面均匀充电的充电器，在潜像承载部件的表面上形成静电潜像的静电潜像形成装置，显影装置使用调色剂将静电潜像显影成调色剂图像;转印偏压施加装置，用于向潜像承载部件面向记录介质的图像转印区域施加转印偏压;预转印中和装置，以降低电位; 在潜像承载部件的表面的一部分上，检测潜像承载部件的表面的电位的表面电位检测器，以及用于控制来自预转印的辐射量的辐射量控制装置基于由表面电位检测器得到的检测结果的中和装置。

100. 发明授权

US07929175B2 Image printing apparatus and method of controlling the same 有权
标题翻译：图像打印装置及其控制方法
公开(公告)号：US07929175B2
公开(公告)日：2011-04-19
申请号：US11501023
申请日：2006-08-09
申请人： Hirokazu Ishii , Shigeki Hachiro , Kazuya Imafuku , Naomi Nakamura
发明人： Hirokazu Ishii , Shigeki Hachiro , Kazuya Imafuku , Naomi Nakamura
IPC分类号： G06K15/02 , G06K15/00 , H04N1/60 , H04N1/46
CPC分类号： H04N1/33315 , H04N1/2369 , H04N1/3875 , H04N2201/0091 , H04N2201/33321
摘要： This invention relates an image printing apparatus capable of copying by executing enlargement/reduction (E/R) processing optimum to an instructed mode. According to the apparatus, a copy mode and an enlargement rate are input. The use priority order of each enlargement/reduction (E/R) unit of the apparatus is decided. The enlargement rate is distributed to each E/R unit in accordance with the copy mode, decided use priority order, and the E/R rate upper limit value of each E/R unit. An image is copied by causing each E/R unit to sequentially execute E/R processing in accordance with the distributed enlargement rate and the decided use priority order and causing a printing unit to print based on the image data that has undergone the E/R processing.
摘要翻译：本发明涉及能够通过执行对指示模式的最佳化的放大/缩小（E / R）处理来进行复制的图像打印装置。根据该装置，输入复印模式和放大率。确定装置的每个放大/缩小（E / R）单元的使用优先顺序。根据复印模式，决定使用优先顺序和每个E / R单元的E / R速率上限值，将放大率分配给每个E / R单元。通过使每个E / R单元根据分布式放大率和所决定的使用优先级顺序依次执行E / R处理并使得打印单元基于已经历E / R的图像数据进行打印来复制图像处理。

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