公开(公告)号：US20090010666A1

公开(公告)日：2009-01-08

申请号：US12098009

申请日：2008-04-04

申请人： Yuusuke Okuno ,  Tomohiro Kato ,  Tomo Kitada ,  Toru Hayase

发明人： Yuusuke Okuno ,  Tomohiro Kato ,  Tomo Kitada ,  Toru Hayase

IPC分类号： G03G15/08

CPC分类号： G03G15/065 ,  G03G15/0808 ,  G03G2215/0634

摘要： The development apparatus that develops an electrostatic latent image formed on an image carrier comprises: a developer roller operable to carry toner on a circumferential surface thereof and develop the electrostatic latent image using the toner; a supply roller operable to perform toner supply to the developer roller; a voltage applier operable to apply a bias voltage V1 to the developer roller and apply a bias voltage V2 to the supply roller; and a controller operable to control the voltage applier in a toner compulsive consumption mode so that a value obtained by subtracting an average S2 of the bias voltage V2 per unit time from an average S1 of the bias voltage V1 per unit time indicates the same polarity as a normal charging polarity of the toner. Here, the toner compulsive consumption mode performs development to compulsively consume the toner carried on the circumferential surface of the developer roller.

摘要翻译： 形成在图像载体上的静电潜像的显影装置包括：可操作地在其圆周表面上承载调色剂的显影辊，并使用调色剂显影静电潜像; 供应辊，其可操作以对所述显影辊进行调色剂供应; 电压施加器，其可操作以将偏置电压V1施加到所述显影辊，并将偏压V2施加到所述供应辊; 以及控制器，其可操作以在调色剂强制消耗模式下控制电压施加器，使得通过从每单位时间的偏置电压V1的平均值S1减去每单位时间的偏置电压V2的平均值得到的值表示与 调色剂的正常充电极性。 这里，调色剂强制消耗模式进行显影以强制地消耗承载在显影辊的圆周表面上的调色剂。

公开(公告)号：US07970305B2

公开(公告)日：2011-06-28

申请号：US12098009

申请日：2008-04-04

申请人： Yuusuke Okuno ,  Tomohiro Kato ,  Tomo Kitada ,  Toru Hayase

发明人： Yuusuke Okuno ,  Tomohiro Kato ,  Tomo Kitada ,  Toru Hayase

IPC分类号： G03G15/06 ,  G03G15/08

CPC分类号： G03G15/065 ,  G03G15/0808 ,  G03G2215/0634

摘要： The development apparatus that develops an electrostatic latent image formed on an image carrier comprises: a developer roller operable to carry toner on a circumferential surface thereof and develop the electrostatic latent image using the toner; a supply roller operable to perform toner supply to the developer roller; a voltage applier operable to apply a bias voltage V1 to the developer roller and apply a bias voltage V2 to the supply roller; and a controller operable to control the voltage applier in a toner compulsive consumption mode so that a value obtained by subtracting an average S2 of the bias voltage V2 per unit time from an average S1 of the bias voltage V1 per unit time indicates the same polarity as a normal charging polarity of the toner. Here, the toner compulsive consumption mode performs development to compulsively consume the toner carried on the circumferential surface of the developer roller.

摘要翻译： 形成在图像载体上的静电潜像的显影装置包括：可操作地在其圆周表面上承载调色剂的显影辊，并使用调色剂显影静电潜像; 供应辊，其可操作以对所述显影辊进行调色剂供应; 电压施加器，其可操作以将偏置电压V1施加到所述显影辊，并将偏压V2施加到所述供应辊; 以及控制器，其可操作以在调色剂强制消耗模式下控制电压施加器，使得通过从每单位时间的偏置电压V1的平均值S1减去每单位时间的偏置电压V2的平均值得到的值表示与 调色剂的正常充电极性。 这里，调色剂强制消耗模式进行显影以强制地消耗承载在显影辊的圆周表面上的调色剂。

公开(公告)号：US08406645B2

公开(公告)日：2013-03-26

申请号：US12473541

申请日：2009-05-28

申请人： Yuusuke Okuno ,  Kentaro Katori ,  Kanji Nakayama ,  Tomo Kitada ,  Toru Hayase

发明人： Yuusuke Okuno ,  Kentaro Katori ,  Kanji Nakayama ,  Tomo Kitada ,  Toru Hayase

IPC分类号： G03G15/06

CPC分类号： G03G15/0813 ,  G03G15/065 ,  G03G2215/0634

摘要： Developing bias is set as follows. An electric field intensity between a developing roller and a photoconductor is set to cause normally-charged toner to fly in an image area and not to cause the toner to fly in a background area. Thus, the normally-charged toner does not fly in the background area. The normally-charged toner caused to fly is therefore unlikely to flick low-charged toner and oppositely-charged toner. The low-charged toner and the oppositely-charged toner will not adhere to the background area and cause image fogging. Accordingly, an image forming apparatus can be provided to prevent the low-charged toner and the oppositely-charged toner from adhering to the background area of an electrostatic latent image on the photoconductor and to avoid the occurrence of image fogging in the background area on a printed material.

摘要翻译： 开发偏差设置如下。 设置显影辊和光电导体之间的电场强度以使正常充电的调色剂在图像区域中飞行，并且不会使调色剂在背景区域中飞行。 因此，正常充电的调色剂在背景区域不飞。 因此，因飞扬的正常充电的调色剂不太可能会使低充电的调色剂和带有相反电荷的调色剂翻转。 低电量调色剂和带相反电荷的调色剂不会粘附到背景区域并导致图像起雾。 因此，可以提供图像形成装置，以防止低电荷调色剂和相反电荷的调色剂粘附到感光体上的静电潜像的背景区域上，并且避免在背景区域上发生图像起雾 印刷材料。

公开(公告)号：US20070258733A1

公开(公告)日：2007-11-08

申请号：US11785354

申请日：2007-04-17

申请人： Narutaka Yoshida ,  Tomohiro Kato ,  Yuusuke Okuno ,  Tomo Kitada

发明人： Narutaka Yoshida ,  Tomohiro Kato ,  Yuusuke Okuno ,  Tomo Kitada

IPC分类号： G03G15/08

CPC分类号： G03G15/0893 ,  G03G15/0877 ,  G03G2215/0132 ,  G03G2215/0841

摘要： A developing device has a bearing member that can bear a toner, a storing chamber for storing the toner, a waiting chamber disposed below the storing chamber for receiving the bearing member that can be filled with the toner and a buffer chamber positioned between the storing chamber and the waiting chamber for storing the developer material. A first horizontal connecting path connects upper portions of the storing and buffer chambers, and two second connecting paths connect lower portions of the buffer chamber and the waiting chamber. A feed member feeds toner from the storing chamber through the first connecting path into the buffer chamber. A first conveying member in the buffer chamber conveys the toner from one of the connecting paths to the other of the connecting paths, and a second conveying member in the waiting chamber conveys the toner within the waiting chamber in the opposite direction.

摘要翻译： 显影装置具有可承载调色剂的支承构件，用于储存调色剂的储存室，设置在储存室下方的等待室，用于容纳可填充调色剂的轴承构件和位于储存室之间的缓冲室 以及用于存储显影剂材料的等待室。 第一水平连接路径连接存储和缓冲室的上部，并且两个第二连接路径连接缓冲室的下部和等待室。 进料构件将来自储存室的调色剂通过第一连接路径进入缓冲室。 缓冲室中的第一传送构件将调色剂从连接路径中的一个传送到另一个连接路径，等待室中的第二传送构件沿相反方向传送等待室内的调色剂。

公开(公告)号：US07693463B2

公开(公告)日：2010-04-06

申请号：US11785354

申请日：2007-04-17

申请人： Narutaka Yoshida ,  Tomohiro Kato ,  Yuusuke Okuno ,  Tomo Kitada

发明人： Narutaka Yoshida ,  Tomohiro Kato ,  Yuusuke Okuno ,  Tomo Kitada

IPC分类号： G03G15/08

CPC分类号： G03G15/0893 ,  G03G15/0877 ,  G03G2215/0132 ,  G03G2215/0841

摘要： A developing device has a bearing member that can bear a toner, a storing chamber for storing the toner, a waiting chamber disposed below the storing chamber for receiving the bearing member that can be filled with the toner and a buffer chamber positioned between the storing chamber and the waiting chamber for storing the developer material. A first horizontal connecting path connects upper portions of the storing and buffer chambers, and two second connecting paths connect lower portions of the buffer chamber and the waiting chamber. A feed member feeds toner from the storing chamber through the first connecting path into the buffer chamber. A first conveying member in the buffer chamber conveys the toner from one of the connecting paths to the other of the connecting paths, and a second conveying member in the waiting chamber conveys the toner within the waiting chamber in the opposite direction.

摘要翻译： 显影装置具有可承载调色剂的支承构件，用于储存调色剂的储存室，设置在储存室下方的等待室，用于容纳可填充调色剂的轴承构件和位于储存室之间的缓冲室 以及用于存储显影剂材料的等待室。 第一水平连接路径连接存储和缓冲室的上部，并且两个第二连接路径连接缓冲室的下部和等待室。 进料构件将来自储存室的调色剂通过第一连接路径进入缓冲室。 缓冲室中的第一传送构件将调色剂从连接路径中的一个传送到另一个连接路径，等待室中的第二传送构件沿相反方向传送等待室内的调色剂。

公开(公告)号：US08032043B2

公开(公告)日：2011-10-04

申请号：US12478055

申请日：2009-06-04

申请人： Kanji Nakayama ,  Noritoshi Hagimoto ,  Yuusuke Okuno ,  Tomo Kitada ,  Toshiya Aoki

发明人： Kanji Nakayama ,  Noritoshi Hagimoto ,  Yuusuke Okuno ,  Tomo Kitada ,  Toshiya Aoki

IPC分类号： G03G15/06

CPC分类号： G03G15/065 ,  G03G15/0849 ,  G03G15/0862 ,  G03G15/0877 ,  G03G15/0879

摘要： In case new and old toners may be mixed, a developing bias is set as follows. The time is first clocked. The number of times toner is replenished from a hopper into a buffer for a clocked period is counted. If a replenishment amount per clock time is a threshold value or higher, considering that new and old toners are mixed, the setting of the developing bias is changed. An electric field intensity between a developing roller and a photoconductor is set to cause normally-charged toner to fly in an image area but not to fly in a background area. No image fogging is therefore generated in the background area. Thus, an image forming apparatus and method capable of preventing low-charged toner and oppositely-charged toner generated by mixing of new and old toners from adhering to the background area of an electrostatic latent image on the photoconductor, thereby avoiding generation of image fogging.

摘要翻译： 如果新旧的调色剂可能混合，则显影偏压设置如下。 时间是第一时间。 计数将调色剂从料斗补充到缓冲器中的次数。 如果每个时钟时间的补充量是阈值或更高，则考虑到新的和旧的调色剂混合，改变了显影偏差的设定。 设置显影辊和光电导体之间的电场强度以使正常充电的调色剂在图像区域中飞行，但不在背景区域中飞行。 因此，在背景区域中不会产生图像雾化。 因此，能够防止由新旧的调色剂混合而产生的带电荷低的调色剂和相反电荷的调色剂粘附在感光体上的静电潜像的背景区域，从而避免图像起雾的形成装置和方法。

公开(公告)号：US20090175636A1

公开(公告)日：2009-07-09

申请号：US12332664

申请日：2008-12-11

申请人： Toru Hayase ,  Kuniya Matsuura ,  Yuusuke Okuno ,  Kentaro Katori ,  Hiromasa Ueno ,  Hideaki Hayashi

发明人： Toru Hayase ,  Kuniya Matsuura ,  Yuusuke Okuno ,  Kentaro Katori ,  Hiromasa Ueno ,  Hideaki Hayashi

IPC分类号： G03G15/00 ,  G03G21/20 ,  G03G15/08

CPC分类号： G03G15/065 ,  G03G15/0887

摘要： To prevent image defects such as fog and irregularities caused by the accumulation of the oppositely charged toner by flying the toner toward a photoreceptor to compulsorily consume the toner even though the toner is oppositely charged toner having a small charged amount. A potential difference between the photoreceptor and the development roller is set at a value at which the normally charged toner on the development roller can be flown toward the photoreceptor in the development phase at the time of compulsorily consuming the toner, and this potential difference is set at a value at which the flown normally charged toner can be returned to the development roller in the recovery phase. A development duty and a frequency f are set in such a way that a time period in the development phase is larger than a time taken for the normally charged toner on the development roller to fly to a point located midway between the development roller and the photoreceptor and is smaller than a time taken for arriving at the photoreceptor, and a time period in the recovery phase is larger than a time taken before the normally charged toner arrived at the point located midway between the development roller and the photoreceptor arrives at the photoreceptor, returns to the development roller to beaten out the oppositely charged toner and the oppositely charged toner beaten out flies to the photoreceptor.

摘要翻译： 为了防止由于相反充电的调色剂的积聚引起的图像缺陷，例如通过将调色剂朝向感光体飞行而强制消耗调色剂，即使调色剂具有相反电荷的带电量小的调色剂。 感光体和显影辊之间的电位差被设定为在强制消耗调色剂时显影辊上的正常带电的调色剂能够在显影阶段中朝向感光体流动的值，并且设定该电位差 在正常充电的调色剂可以在恢复阶段返回到显影辊的值。 显影负荷和频率f被设定为使得显影阶段的时间段大于显影辊上的正常充电的调色剂飞行到位于显影辊和感光体之间的位置的时间 并且小于到达感光体所需的时间，并且恢复阶段的时间段大于在正常充电的调色剂到达位于显影辊和感光体之间的位置到达感光体的时间， 返回到显影辊，以殴打带相反电荷的调色剂，并将带相反电荷的调色剂扑灭到感光体中。

公开(公告)号：US07853161B2

公开(公告)日：2010-12-14

申请号：US12332664

申请日：2008-12-11

申请人： Toru Hayase ,  Kuniya Matsuura ,  Yuusuke Okuno ,  Kentaro Katori ,  Hiromasa Ueno ,  Hideaki Hayashi

发明人： Toru Hayase ,  Kuniya Matsuura ,  Yuusuke Okuno ,  Kentaro Katori ,  Hiromasa Ueno ,  Hideaki Hayashi

IPC分类号： G03G15/08 ,  G03G15/00

CPC分类号： G03G15/065 ,  G03G15/0887

摘要： A potential difference between the photoreceptor and the development roller is set at a value at which the normally charged toner on the development roller can be flown toward the photoreceptor in the development phase at the time of compulsorily consuming the toner, and this potential difference is set at a value at which the flown normally charged toner can be returned to the development roller in the recovery phase.

摘要翻译： 感光体和显影辊之间的电位差被设定为在强制消耗调色剂时显影辊上的正常带电的调色剂能够在显影阶段中朝向感光体流动的值，并且设定该电位差 在正常充电的调色剂可以在恢复阶段返回到显影辊的值。

公开(公告)号：US08126379B2

公开(公告)日：2012-02-28

申请号：US12480070

申请日：2009-06-08

申请人： Toru Hayase ,  Yuusuke Okuno ,  Shigeki Yamamoto ,  Kuniya Matsuura ,  Hiroshi Murasaki

发明人： Toru Hayase ,  Yuusuke Okuno ,  Shigeki Yamamoto ,  Kuniya Matsuura ,  Hiroshi Murasaki

IPC分类号： G03G15/08 ,  G03G15/09

CPC分类号： G03G15/0921 ,  G03G2215/0609

摘要： The present invention provides a developing device which is capable of suppressing the generation of a fogging phenomenon and deposition of carrier particles to an electrostatic latent image carrier and developing the electrostatic latent image efficiently, the device includes a development sleeve and a magnet body onto which the sleeve is fitted, and using a two-component developer. An angular position which indicates the peak value of the magnetic flux density in the normal direction produced by a development pole of the magnet body is shifted downstream from the center position of the development pole in the direction of movement of the surface of a photosensitive member in a development region. The present invention also provides an image forming apparatus which can form high-quality images with reduced noise such as fogging by mounting the developing device.

摘要翻译： 本发明提供了能够抑制雾化现象的产生和载体颗粒沉积到静电潜像载体上并有效地显影静电潜像的显影装置，该装置包括显影套筒和磁体， 套筒，并使用双组分显影剂。 指示由磁体的显影极产生的在正常方向上的磁通密度的峰值的角度位置在显影极的中心位置的下游沿着感光构件的表面的移动方向 一个开发区域。 本发明还提供一种图像形成装置，其可以通过安装显影装置来形成具有降低的噪声（例如起雾）的高质量图像。

公开(公告)号：US20090311011A1

公开(公告)日：2009-12-17

申请号：US12480070

申请日：2009-06-08

申请人： Toru HAYASE ,  Yuusuke Okuno ,  Shigeki Yamamoto ,  Kuniya Matsuura ,  Hiroshi Murasaki

发明人： Toru HAYASE ,  Yuusuke Okuno ,  Shigeki Yamamoto ,  Kuniya Matsuura ,  Hiroshi Murasaki

IPC分类号： G03G15/09

CPC分类号： G03G15/0921 ,  G03G2215/0609

摘要： The present invention provides a developing device which is capable of suppressing the generation of a fogging phenomenon and deposition of carrier particles to an electrostatic latent image carrier and developing the electrostatic latent image efficiently, the device comprising a development sleeve and a magnet body onto which the sleeve is fitted, and using a two-component developer. An angular position which indicates the peak value of the magnetic flux density in the normal direction produced by a development pole of the magnet body is shifted downstream from the center position of the development pole in the direction of movement of the surface of a photosensitive member in a development region. The present invention also provides an image forming apparatus which can form high-quality images with reduced noise such as fogging by mounting the developing device.

摘要翻译： 本发明提供一种显影装置，其能够抑制雾化现象的产生和载体颗粒沉积到静电潜像载体上并有效地显影静电潜像，该装置包括显影套筒和磁体， 套筒，并使用双组分显影剂。 指示由磁体的显影极产生的在正常方向上的磁通密度的峰值的角度位置在显影极的中心位置的下游沿着感光构件的表面的移动方向 一个开发区域。 本发明还提供一种图像形成装置，其可以通过安装显影装置来形成具有降低的噪声（例如起雾）的高质量图像。