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。

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。

公开(公告)号：US20140056622A1

公开(公告)日：2014-02-27

申请号：US13960125

申请日：2013-08-06

申请人： Motohiro USAMI

发明人： Motohiro USAMI

IPC分类号： G03G15/09

CPC分类号： G03G15/09 ,  G03G15/0921

摘要： A developing device to develop a latent image includes a developer bearer including a rotatable, hollow developer supporter to carry two-component developer on a surface thereof, and a stationary magnetic field generator having multiple magnetic poles and disposed inside the hollow developer supporter, and a magnetic field adjuster. The magnetic field generator generates a magnetic flux on the surface of the hollow developer supporter, and the magnetic field adjuster suppresses a maximum value of magnetic flux density in a tangential direction to the surface of the hollow developer supporter from a predetermined value for image formation.

摘要翻译： 用于显影潜像的显影装置包括显影剂载体，其包括可旋转的中空显影剂载体，以在其表面上承载双组分显影剂，以及具有多个磁极并设置在中空显影剂载体内的固定磁场发生器， 磁场调节器 磁场发生器在中空显影剂载体的表面上产生磁通量，并且磁场调节器从图像形成的预定值抑制与中空显影剂载体的表面相切的方向的磁通密度的最大值。