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：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：US20090304404A1

公开(公告)日：2009-12-10

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： G03G15/08 ,  G03G15/00

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，正常充电的调色剂不会在背景区域中飞行。 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对充电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：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：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：US08045908B2

公开(公告)日：2011-10-25

申请号：US12707840

申请日：2010-02-18

申请人： Toru Hayase ,  Kazunori Nishinoue ,  Naoki Yamamoto ,  Hideaki Hayashi ,  Taizou Oonishi ,  Norikazu Okabe

发明人： Toru Hayase ,  Kazunori Nishinoue ,  Naoki Yamamoto ,  Hideaki Hayashi ,  Taizou Oonishi ,  Norikazu Okabe

IPC分类号： G03G15/20

CPC分类号： G03G15/206 ,  G03G2215/2009

摘要： A fixing device has a presser member, a slide member and a pressure belt. Both ends of the presser member are positioned outside both ends of the slide member. Both ends of the slide member are positioned outside both ends of the pressure belt. Thereby, the slide member and the pressure belt are improved in service life, so that the fixing device as a whole is improved in service life.

摘要翻译： 固定装置具有压紧构件，滑动构件和压力带。 压脚构件的两端位于滑动构件的两端的外侧。 滑动构件的两端位于压力带的两端之外。 由此，滑动构件和加压带的使用寿命得到改善，使整个固定装置的使用寿命得以提高。

公开(公告)号：US08781378B2

公开(公告)日：2014-07-15

申请号：US13112346

申请日：2011-05-20

申请人： Naoki Yamamoto ,  Mamoru Fukaya ,  Noboru Yonekawa ,  Toru Hayase

发明人： Naoki Yamamoto ,  Mamoru Fukaya ,  Noboru Yonekawa ,  Toru Hayase

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G15/206 ,  G03G2215/2025 ,  G03G2215/2035 ,  G03G2215/2058

摘要： A fixing device for thermally fixing an unfixed image onto a recording sheet by causing the sheet to pass through a fixing nip. The fixing device includes: heat belt formed in an endless shape and provided with a resistance heat layer; first pressure member provided inside a running path of the heat belt; and second pressure member pressing the first pressure member from over the running path to form the fixing nip. At least one of the first and second pressure members is rotating body. The heat belt has a pressure-receiving area and two non-pressure areas. The pressure-receiving area receives pressures from both the first and second pressure members. The non-pressure areas have been arranged at outside of the pressure-receiving area in an axis direction of the rotating body. Two ring-like electrodes have been formed on circumferential surfaces of the non-pressure areas and are used to supply power to the resistance heat layer.

摘要翻译： 一种用于通过使片材通过定影辊隙将未定影图像热定影到记录片材上的定影装置。 定影装置包括：加热带，其形成为环形，并设有电阻加热层; 第一压力构件设置在加热带的行进路径内; 以及第二压力部件，从所述行进路径的上方按压所述第一压力部件，以形成所述定影辊隙。 第一和第二压力构件中的至少一个是旋转体。 加热带具有受压面积和两个非压力区域。 压力接收区域接收来自第一和第二压力构件的压力。 非压力区域设置在受压区域的旋转体的轴线方向的外侧。 在非压力区域的圆周表面上形成有两个环形电极，用于向电阻加热层供电。

公开(公告)号：US08606163B2

公开(公告)日：2013-12-10

申请号：US13113719

申请日：2011-05-23

申请人： Naoki Yamamoto ,  Mamoru Fukaya ,  Noboru Yonekawa ,  Toru Hayase

发明人： Naoki Yamamoto ,  Mamoru Fukaya ,  Noboru Yonekawa ,  Toru Hayase

IPC分类号： G03G15/00 ,  G03G15/20

CPC分类号： G03G15/20 ,  G03G15/2053 ,  G03G2215/2025

摘要： Disclosed is a fixing device for thermally fixing an unfixed image onto the recording sheet, the fixing device comprising: a fixing belt; and a meander regulation member provided adjacent to an edge of the fixing belt in a width direction thereof, and operable to prevent meandering of the fixing belt, wherein the fixing belt includes: a resistive heat layer that is tubular and generates heat when an electric current is applied thereto; and first and second electrodes that are provided circumferentially on an outer circumferential surface of the resistive heat layer, and that receive and apply the electric current to the resistive heat layer, and the first electrode is provided closer to the meander regulation member than to the second electrode, and is at a distance from the edge of the fixing belt in the width direction thereof.

摘要翻译： 公开了一种用于将未定影图像热定影到记录片材上的定影装置，该定影装置包括：定影带; 以及在宽度方向上与定影带的边缘相邻设置的弯曲调节构件，并且可操作以防止定影带的曲折，其中定影带包括：电阻加热层，其为管状并且当电流 适用于 以及在电阻性热层的外周面周向设置并且将电流接收并施加到电阻加热层的第一和第二电极，并且第一电极设置成比第二电极更靠近曲折调节构件 并且在定影带的边缘的宽度方向上有一段距离。