公开(公告)号：US5559590A

公开(公告)日：1996-09-24

申请号：US373428

申请日：1995-01-17

申请人： Makoto Arai ,  Norimasa Sohmiya ,  Masakuni Konja ,  Satoshi Takano

发明人： Makoto Arai ,  Norimasa Sohmiya ,  Masakuni Konja ,  Satoshi Takano

IPC分类号： G03G21/14 ,  G03G15/16 ,  G03G21/00 ,  G03G15/14

CPC分类号： G03G15/166

摘要： An image forming apparatus capable of preventing toner deposited on an image carrier from being transferred to an image transfer belt and capable of removing the toner transferred to the belt without lowering a copying speed. When an image transfer medium is absent at a nip formed by the belt and an image carrier contacting each other, a charge of the same polarity as a charge assigned to image transfer is applied from a high-tension power source to the belt.

摘要翻译： 一种图像形成装置，其能够防止沉积在图像载体上的调色剂转印到图像转印带上并且能够在不降低复印速度的情况下去除转印到带上的调色剂。 当在由带形成的辊隙和图像载体彼此接触的图像转印介质中不存在时，从高压动力源向带施加与分配给图像转印的电荷相同极性的电荷。

公开(公告)号：US5950055A

公开(公告)日：1999-09-07

申请号：US62445

申请日：1998-04-17

申请人： Masazumi Yahata ,  Shunji Katoh ,  Yuuji Kitajima ,  Masakuni Konja ,  Satoshi Takano ,  Fumihito Itoh

发明人： Masazumi Yahata ,  Shunji Katoh ,  Yuuji Kitajima ,  Masakuni Konja ,  Satoshi Takano ,  Fumihito Itoh

IPC分类号： G03G15/08

CPC分类号： G03G15/0822

摘要： A powder pump includes a case, a diaphragm, a working chamber which is partitioned with the case and the diaphragm, a powder inlet formed on the case for flowing the powder into the working chamber, a powder outlet formed on the case for flowing the powder in the working chamber out of the powder outlet, an inlet valve which opens the powder inlet when pressure in the working chamber is decreased by an operation of the diaphragm so that the powder flows into the working chamber from the powder inlet and shuts the powder inlet when the pressure in the working chamber is raised by the operation of the diaphragm, and an outlet valve which opens an outlet when the pressure in the working chamber is raised by the operation of the diaphragm, so as to let the powder flow through the powder outlet outside of the working chamber and shuts the powder outlet when the pressure in the working chamber is lowered by the operation of the diaphragm. The powder pump further includes a first space which is formed so as to communicate with the working chamber located at a place around a case wall part which partitions the powder inlet, and a second space which is formed so as to communicate with a powder flowing path located at the downstream side of a powder conveying direction from the outlet valve. The powder pump is utilized for conveying the toner in an image forming apparatus.

摘要翻译： 粉末泵包括壳体，隔膜，与壳体隔开的工作室和隔膜;形成在壳体上的粉末入口，用于使粉末流入工作室;粉末出口，形成在壳体上，用于使粉末流动 在粉末出口处的工作室中，通过隔膜的操作减小工作室中的压力来打开粉末入口的入口阀，使得粉末从粉末入口流入工作室并关闭粉末入口 当通过隔膜的操作使工作室中的压力升高时，以及当通过隔膜的操作使工作室中的压力升高时打开出口的出口阀，以使粉末流过粉末 出口在工作室外部，并且当通过隔膜的操作降低工作室中的压力时，关闭粉末出口。 粉末泵还包括第一空间，其形成为与位于分隔粉末入口的壳壁部分周围的位置的工作室连通，第二空间形成为与粉末流动路径连通 位于从出口阀的粉末输送方向的下游侧。 粉末泵用于在成像设备中输送调色剂。

公开(公告)号：US5493371A

公开(公告)日：1996-02-20

申请号：US242882

申请日：1994-05-16

申请人： Akio Kutsuwada ,  Masakuni Konja

发明人： Akio Kutsuwada ,  Masakuni Konja

IPC分类号： G03G15/16 ,  G03G15/14

CPC分类号： G03G15/1675

摘要： A device incorporated in an image forming apparatus for transferring an image from a photosensitive element to a transfer sheet. The transfer device includes a drive roller, a driven roller, a transfer belt for transferring a toner image formed on a latent image carrier to a transfer sheet, a bias roller, a feedback roller. In addition a power source device is provided for applying a voltage to the bias roller from a power source, and includes a control for controlling an output of the power source. The transfer belt passes over the drive roller and the driven roller, and the power source is connected to the bias roller and the feedback roller. Where an output current flowing from the power source to the transfer belt via the bias roller is I-1, and a feedback current flowing from the transfer belt to the power source via the feedback roller is I-2, the currents are controlled such that they satisfy the following equation:I-1-I-2=Kwhere K is constant. The feedback roller is located upstream of the driven roller with respect to the moving direction of the transfer belt and is located between the bias roller and the driven roller in the horizontal direction.

公开(公告)号：US6101361A

公开(公告)日：2000-08-08

申请号：US216977

申请日：1998-12-21

申请人： Kenji Karashima ,  Kohichi Yamazaki ,  Kentaro Matsumoto ,  Kazuhiko Yuuki ,  Manabu Mochizuki ,  Noriyuki Usui ,  Asami Mae ,  Masakuni Konja

发明人： Kenji Karashima ,  Kohichi Yamazaki ,  Kentaro Matsumoto ,  Kazuhiko Yuuki ,  Manabu Mochizuki ,  Noriyuki Usui ,  Asami Mae ,  Masakuni Konja

IPC分类号： G03G15/00 ,  G03G15/16

CPC分类号： G03G15/657 ,  G03G15/165

摘要： An image forming apparatus and method in which a transfer device is provided in a position separated from an image carrier. A transfer sheet is conveyed along and contacting a part of a circumferential surface of the image carrier facing the transfer device when transferring a toner image from the image carrier to the transfer sheet. A conveying guide is included to guide and covey the transfer sheet separated from the image carrier to a fixing unit. The conveying guide includes a guiding member to direct the conveying direction of the transfer sheet upward when the leading edge of the transfer sheet contacts the guiding member and to convey the transfer sheet at a part of the conveying guide or the guiding member in a position higher than the position of the leading edge of the transfer sheet contacting the conveying guide or the guiding member, so that the contact area between the transfer sheet and the image carrier increases, and so that the transfer sheet separates from the image carrier without a discharging of a charge on the transfer sheet.

摘要翻译： 一种图像形成装置和方法，其中转印装置设置在与图像载体分离的位置。 当将调色剂图像从图像载体转印到转印纸上时，转印片材沿着图像载体的周向表面的一部分传送并接触传送装置。 包括输送引导件以引导和传送从图像载体分离的转印纸到定影单元。 输送引导件包括引导构件，用于当转印片的前缘接触引导构件时将转印纸的输送方向向上引导，并将转印片在输送引导件或引导构件的一部分处运送到更高的位置 比转印片的前缘与输送引导件或引导部件接触的位置更大，使得转印纸和图像载体之间的接触面积增大，使得转印纸与图像载体分离而不会排出 转让单上的费用。

公开(公告)号：US5884134A

公开(公告)日：1999-03-16

申请号：US878903

申请日：1997-06-19

申请人： Kenji Karashima ,  Kohichi Yamazaki ,  Kentaro Matsumoto ,  Kazuhiko Yuuki ,  Manabu Mochizuki ,  Noriyuki Usui ,  Asami Mae ,  Masakuni Konja

发明人： Kenji Karashima ,  Kohichi Yamazaki ,  Kentaro Matsumoto ,  Kazuhiko Yuuki ,  Manabu Mochizuki ,  Noriyuki Usui ,  Asami Mae ,  Masakuni Konja

IPC分类号： G03G15/00 ,  G03G15/16

CPC分类号： G03G15/657 ,  G03G15/165

摘要： An image forming apparatus in which a transfer device is provided in a position separated from an image carrier. A transfer sheet is conveyed along and contacting a part of a circumferential surface of the image carrier facing the transfer device when transferring a toner image from the image carrier to the transfer sheet. A conveying guide is included to guide and covey the transfer sheet separated from the image carrier to a fixing unit. The conveying guide includes a guiding member to direct the conveying direction of the transfer sheet upward when the leading edge of the transfer sheet contacts the guiding member and to convey the transfer sheet at a part of the conveying guide or the guiding member in a position higher than the position of the leading edge of the transfer sheet contacting the conveying guide or the guiding member, so that the contact area between the transfer sheet and the image carrier increases.

摘要翻译： 一种图像形成装置，其中传送装置设置在与图像载体分离的位置。 当将调色剂图像从图像载体转印到转印纸上时，转印片材沿着图像载体的周向表面的一部分传送并接触传送装置。 包括输送引导件以引导和传送从图像载体分离的转印纸到定影单元。 输送引导件包括引导构件，用于当转印片的前缘接触引导构件时将转印纸的输送方向向上引导，并将转印片在输送引导件或引导构件的一部分处运送到更高的位置 比转印片的前缘与输送引导件或引导部件接触的位置相同，使得转印纸和图像载体之间的接触面积增加。

公开(公告)号：US5552871A

公开(公告)日：1996-09-03

申请号：US498782

申请日：1995-07-05

申请人： Akio Kutsuwada ,  Masakuni Konja

发明人： Akio Kutsuwada ,  Masakuni Konja

IPC分类号： G03G15/16 ,  G03G15/14

CPC分类号： G03G15/1675

摘要： A device incorporated in an image forming apparatus for transferring an image from a photosensitive element to a transfer sheet. The transfer device includes a drive roller, a driven roller, a transfer belt for transferring a toner image formed on a latent image carrier to a transfer sheet, a bias roller, a feedback roller. In addition a power source device is provided for applying a voltage to the bias roller from a power source, and includes a control for controlling an output of the power source. The transfer belt passes over the drive roller and the driven roller, and the power source is connected to the bias roller and the feedback roller. Where an output current flowing from the power source to the transfer belt via the bias roller is I-1, and a feedback current flowing from the transfer belt to the power source via the feedback roller is I-2, the currents are controlled such that they satisfy the following equation:I-1-I-2=Kwhere K is constant. The feedback roller is located upstream of the driven roller with respect to the moving direction of the transfer belt and is located between the bias roller and the driven roller in the horizontal direction.

摘要翻译： 一种结合在图像形成装置中的用于将图像从感光元件转印到转印纸上的装置。 转印装置包括驱动辊，从动辊，用于将形成在潜像载体上的调色剂图像转印到转印片上的转印带，偏压辊，反馈辊。 另外，提供了用于从电源向偏压辊施加电压的电源装置，并且包括用于控制电源的输出的控制。 转印带通过驱动辊和从动辊，电源连接到偏压辊和反馈辊。 在通过偏压辊从电源流向转印带的输出电流为I-1的情况下，经由反馈辊从转印带流向电源的反馈电流为I-2时，电流被控制为 它们满足以下等式：I-1-I-2 = K其中K是常数。 反馈辊相对于转印带的移动方向位于从动辊的上游，​​并且在水平方向上位于偏置辊和从动辊之间。