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    Image forming apparatus
    1.
    发明授权
    Image forming apparatus 有权
    图像形成装置

    公开(公告)号：US08774655B2

    公开(公告)日：2014-07-08

    申请号：US12878543

    申请日：2010-09-09

    申请人： Motohiro Usami ,  Takahiro Seki ,  Masashi Nagayama ,  Shinji Aoki ,  Jun Hitosugi

    发明人： Motohiro Usami ,  Takahiro Seki ,  Masashi Nagayama ,  Shinji Aoki ,  Jun Hitosugi

    IPC分类号： G03G15/00

    CPC分类号： G03G15/1645

    摘要： An apparatus includes: an image carrier; a charger to uniformly charge a surface of the image carrier; an exposing unit to perform write scanning on the image carrier; a developing unit that includes a developer carrier carrying a developer including a toner and that is configured to perform a visible image process on an electrostatic latent image formed on the image carrier; and a transferor to transfer a toner image that has been subjected to the process onto a material. If length Lg of a non-image part directly before an image part in an image carrier moving direction has the relation of Lg≧π·Ds/(Vs/Vp), where Vp and Vs are circumferential velocities of the image carrier and the developer carrier and Ds is a diameter of the developer carrier, suppression of toner attachment on the material is controlled in a predetermined length from an image front end in the direction.

    摘要翻译： 一种装置包括：图像载体; 使图像载体的表面均匀充电的充电器; 曝光单元，用于在所述图像载体上执行写入扫描; 显影单元，其包括携带包含调色剂的显影剂的显影剂载体，其被构造成对形成在所述图像载体上的静电潜像进行可见图像处理; 以及将经过该处理的调色剂图像转印到材料上的转印器。 如果直接在图像载体移动方向上的图像部分之前的非图像部分的长度Lg具有Lg≥＆Pgr;·Ds /（Vs / Vp）的关系，其中Vp和Vs是图像载体的周向速度， 显影剂载体和Ds是显影剂载体的直径，抑制材料上的调色剂附着物从图像前端沿该方向被控制在预定长度。

    IMAGE FORMING APPARATUS
    2.
    发明申请
    IMAGE FORMING APPARATUS 有权
    图像形成装置

    公开(公告)号：US20110058831A1

    公开(公告)日：2011-03-10

    申请号：US12878543

    申请日：2010-09-09

    申请人： Motohiro USAMI ,  Takahiro Seki ,  Masashi Nagayama ,  Shinji Aoki ,  Jun Hitosugi

    发明人： Motohiro USAMI ,  Takahiro Seki ,  Masashi Nagayama ,  Shinji Aoki ,  Jun Hitosugi

    IPC分类号： G03G15/00 ,  G03G15/08 ,  G03G15/16 ,  G03G15/043

    CPC分类号： G03G15/1645

    摘要： An apparatus includes: an image carrier; a charger to uniformly charge a surface of the image carrier; an exposing unit to perform write scanning on the image carrier; a developing unit that includes a developer carrier carrying a developer including a toner and that is configured to perform a visible image process on an electrostatic latent image formed on the image carrier; and a transferor to transfer a toner image that has been subjected to the process onto a material. If length Lg of a non-image part directly before an image part in an image carrier moving direction has the relation of Lg≧π·Ds/(Vs/Vp), where Vp and Vs are circumferential velocities of the image carrier and the developer carrier and Ds is a diameter of the developer carrier, suppression of toner attachment on the material is controlled in a predetermined length from an image front end in the direction.

    摘要翻译： 一种装置包括：图像载体; 使图像载体的表面均匀充电的充电器; 曝光单元，用于在所述图像载体上执行写入扫描; 显影单元，其包括携带包含调色剂的显影剂的显影剂载体，其被构造成对形成在所述图像载体上的静电潜像进行可见图像处理; 以及将经过该处理的调色剂图像转印到材料上的转印器。 如果直接在图像载体移动方向上的图像部分之前的非图像部分的长度Lg具有Lg≥＆Pgr;·Ds /（Vs / Vp）的关系，其中Vp和Vs是图像载体的周向速度， 显影剂载体和Ds是显影剂载体的直径，抑制材料上的调色剂附着物从图像前端沿该方向被控制在预定长度。

    Image forming apparatus and control method therefor which controls a primary and secondary transfer electric field
    3.
    发明授权
    Image forming apparatus and control method therefor which controls a primary and secondary transfer electric field 有权
    用于控制一次和二次转印电场的图像形成装置及其控制方法

    公开(公告)号：US08238773B2

    公开(公告)日：2012-08-07

    申请号：US12723050

    申请日：2010-03-12

    申请人： Motohiro Usami ,  Shinji Aoki ,  Fumihito Masubuchi

    发明人： Motohiro Usami ,  Shinji Aoki ,  Fumihito Masubuchi

    IPC分类号： G03G15/16

    CPC分类号： G03G15/1605

    摘要： An image forming apparatus includes an image carrier, an intermediate transfer member, a primary transfer member, and a power supply unit to form a primary-transfer electric-field between the image carrier and the primary transfer member by performing constant-current control. The primary transfer member also detects a change in a primary transfer voltage in a sub-scanning direction that is applied to the primary transfer member from the power supply unit in the sub-scanning direction. There is a conductive member, a secondary transfer member, and a secondary-transfer electric-field forming member to apply a secondary transfer current to the secondary transfer member or the conductive member. A control device controls the secondary transfer current applied to the secondary transfer member or the conductive member in accordance with the change in the primary transfer voltage in the sub-scanning direction detected by the power supply unit.

    摘要翻译： 图像形成装置包括图像载体，中间转印构件，一次转印构件和电源单元，以通过执行恒定电流控制在图像载体和一次转印构件之间形成一次转印电场。 一次转印构件还检测从副电源单元沿副扫描方向施加到一次转印构件的副扫描方向上的一次转印电压的变化。 存在导电构件，二次转印构件和二次转印电场形成构件，以向二次转印构件或导电构件施加二次转印电流。 控制装置根据由电源单元检测到的副扫描方向上的一次转印电压的变化来控制施加到二次转印部件或导电部件的二次转印电流。

    IMAGE FORMING APPARATUS AND CONTROL METHOD THEREFOR
    4.
    发明申请
    IMAGE FORMING APPARATUS AND CONTROL METHOD THEREFOR 有权
    图像形成装置及其控制方法

    公开(公告)号：US20100232820A1

    公开(公告)日：2010-09-16

    申请号：US12723050

    申请日：2010-03-12

    申请人： Motohiro USAMI ,  Shinji Aoki ,  Fumihito Masubuchi

    发明人： Motohiro USAMI ,  Shinji Aoki ,  Fumihito Masubuchi

    IPC分类号： G03G15/16

    CPC分类号： G03G15/1605

    摘要： An image forming apparatus include an image carrier, an intermediate transfer member, a primary transfer member, a power supply unit to form a primary-transfer electric-field between the image carrier and the primary transfer member by applying a primary transfer current to the primary transfer member by performing constant-current control and to detect a change in a primary transfer voltage in a sub-scanning direction that is applied to the primary transfer member from the power supply unit in the sub-scanning direction, a conductive member, a secondary transfer member, a secondary-transfer electric-filed forming member to apply a secondary transfer current to the secondary transfer member or the conductive member, and a control device to control the secondary transfer current applied to the secondary transfer member or the conductive member in accordance with the change in the primary transfer voltage in the sub-scanning direction detected by the power supply unit.

    摘要翻译： 图像形成装置包括图像载体，中间转印构件，一次转印构件，电源单元，以通过向初级转印构件施加一次转印电流来在图像载体和一次转印构件之间形成一次转印电场 通过进行恒定电流控制并检测从副扫描方向从电源单元施加到一次转印部件的副扫描方向上的一次转印电压的变化，导电部件，次级 转印构件，二次转印电场形成构件，以向二次转印构件或导电构件施加二次转印电流;以及控制装置，用于根据第二转印构件或导电构件控制施加到二次转印构件或导电构件的二次转印电流 随着由电源单元检测的副扫描方向上的一次转印电压的变化。

    Communication apparatus, communication system, and method for controlling data communication
    5.
    发明授权
    Communication apparatus, communication system, and method for controlling data communication 有权

    公开(公告)号：US10454988B2

    公开(公告)日：2019-10-22

    申请号：US15374038

    申请日：2016-12-09

    申请人： Shinji Aoki

    发明人： Shinji Aoki

    IPC分类号： H04L29/06 ,  H04L12/26

    摘要： A communication apparatus includes a receiver and circuitry. The receiver receives image data from a transmission apparatus. The circuitry identifies an image data type of the image data received by the receiver, and determines a transmission data capacity to be used for transmission of the image data at the transmission apparatus based on the identified image data type. The circuitry further sends a notification to the transmission apparatus, the notification requesting the transmission apparatus to transmit the image data based on the determined transmission data capacity, and outputs the image data that the transmission apparatus transmits based on the notified transmission data capacity.

    Image forming apparatus including a transfer bias output device
    6.
    发明授权
    Image forming apparatus including a transfer bias output device 有权

    公开(公告)号：US09658579B2

    公开(公告)日：2017-05-23

    申请号：US14709567

    申请日：2015-05-12

    申请人： Keigo Nakamura ,  Haruo Iimura ,  Shinji Aoki

    发明人： Keigo Nakamura ,  Haruo Iimura ,  Shinji Aoki

    IPC分类号： G03G15/16

    CPC分类号： G03G15/1665 ,  G03G15/1675

    摘要： An image forming apparatus includes an image bearer to bear a toner image, a toner image forming device to form the toner image on the image bearer, a nip forming device to contact the image bearer to form a transfer nip between the image bearer and the nip forming device, a transfer bias output device to output a transfer bias including a DC component and an AC component to transfer the toner image from the image bearer onto a recording medium interposed in the transfer nip, and a controller operatively connected to the transfer bias output device to adjust a frequency f of the AC component of the transfer bias in accordance with an image area ratio A such that the frequency f is at its minimum with a predetermined image area ratio Amin %, where Amin % is greater than 0 but lower than an image area ratio of a solid image.

    Transfer device with transfer voltage unit and image forming apparatus using the same
    9.
    发明授权
    Transfer device with transfer voltage unit and image forming apparatus using the same 有权
    具有转印电压单元的转印装置和使用其的成像装置

    公开(公告)号：US09081335B2

    公开(公告)日：2015-07-14

    申请号：US13693304

    申请日：2012-12-04

    申请人： Naomi Sugimoto ,  Shinya Tanaka ,  Haruo Iimura ,  Shinji Aoki ,  Yasuhiko Ogino ,  Keigo Nakamura

    发明人： Naomi Sugimoto ,  Shinya Tanaka ,  Haruo Iimura ,  Shinji Aoki ,  Yasuhiko Ogino ,  Keigo Nakamura

    IPC分类号： G03G15/16 ,  G03G15/01

    CPC分类号： G03G15/1665 ,  G03G15/0189 ,  G03G15/1675 ,  G03G2215/0129

    摘要： According to an embodiment, provided is a transfer device including: a nip forming member that abuts against a surface of an image carrier carrying a toner image; and a transfer voltage application unit that applies a transfer voltage including a DC component and an AC component. The transfer voltage is an alternating voltage in which a supply voltage having polarity in a transfer direction and a return voltage having polarity opposite. A time average value Vave of the transfer voltage is set to be at polarity in the transfer direction and is set to be closer to a peak value Vt of the supply voltage relative to a center value Voff between a maximum and minimum value. An absolute value of the peak value Vr of the return voltage is set to be larger than an absolute value of the time average value Vave.

    摘要翻译： 根据实施例，提供了一种转印装置，包括：夹持部件，其邻接承载调色剂图像的图像载体的表面; 以及转印电压施加单元，其施加包括DC分量和AC分量的转印电压。 转印电压是交流电压，其中具有传输方向极性的电源电压和极性相反的返回电压。 将转印电压的时间平均值Vave设定为传送方向的极性，并将其设定为更接近于电源电压相对于最大值与最小值之间的中心值Voff的峰值Vt。 将返回电压的峰值Vr的绝对值设定为大于时间平均值Vave的绝对值。

    Transfer device, image forming apparatus, and transfer method
    10.
    发明授权
    Transfer device, image forming apparatus, and transfer method 有权
    转印装置，成像装置和转印方法

    公开(公告)号：US08923716B2

    公开(公告)日：2014-12-30

    申请号：US13208673

    申请日：2011-08-12

    申请人： Keigo Nakamura ,  Haruo Iimura ,  Shinji Aoki ,  Yasuhiko Ogino

    发明人： Keigo Nakamura ,  Haruo Iimura ,  Shinji Aoki ,  Yasuhiko Ogino

    IPC分类号： G03G15/16

    CPC分类号： G03G15/1605 ,  G03G2215/0129

    摘要： A transfer device includes an image carrier that carries a toner image; a nip forming member that forms a transfer nip between the nip forming member and the image carrier by contacting with a front surface of the image carrier; and a transfer bias applying unit that applies a transfer bias, thereby transferring the toner image carried on the image carrier to a recording material at a position of the transfer nip. The transfer bias applying unit applies the transfer bias in which an AC component and a DC component are superimposed and in which a peak-to-peak voltage of the AC component is larger than 6 times an absolute value of a voltage of the DC component.

    摘要翻译： 转印装置包括承载调色剂图像的图像载体; 辊隙形成部件，其通过与图像载体的前表面接触而在辊隙形成部件和图像载体之间形成转印辊隙; 以及施加转印偏压的转印偏压施加单元，从而将承载在图像载体上的调色剂图像转印到转印辊隙的位置处的记录材料。 转印偏压施加单元施加交流分量和直流分量叠加的转印偏压，其中交流分量的峰 - 峰电压大于直流分量的电压的绝对值的6倍。