公开(公告)号：US08081912B2

公开(公告)日：2011-12-20

申请号：US12364757

申请日：2009-02-03

Applicant: Yoshiro Saito ,  Keisuke Mitsuhashi ,  Michio Uchida ,  Tomonori Shida

Inventor： Yoshiro Saito ,  Keisuke Mitsuhashi ,  Michio Uchida ,  Tomonori Shida

IPC: G03G15/01 ,  G03G21/00 ,  G03G15/16

CPC classification number: G03G15/5095 ,  G03G2215/00734

Abstract: An image forming apparatus operates in a marginless print mode in which the toner image is formed on a first region on a first image bearing member corresponding to a sheet size and a second region on the first image bearing member outside the first region. Reverse-transfer efficiency TR1 and reverse-transfer efficiency TR2 satisfy TR1

Abstract translation: 图像形成装置以无边缘打印模式操作，其中调色剂图像形成在第一图像承载部件上的对应于纸张尺寸的第一区域上，而第一图像承载部件上的第二区域形成在第一区域外部。 反向传递效率TR1和反向传输效率TR2满足TR1

公开(公告)号：US07778558B2

公开(公告)日：2010-08-17

申请号：US11940759

申请日：2007-11-15

Applicant: Michio Uchida ,  Shoichi Zensai ,  Youhei Suzuki ,  Keisuke Mitsuhashi

Inventor： Michio Uchida ,  Shoichi Zensai ,  Youhei Suzuki ,  Keisuke Mitsuhashi

IPC: G03G15/00

CPC classification number: G03G15/166 ,  G03G2215/0129

Abstract: The image forming apparatus, includes a conveyor belt for bearing a recording material, capable of suppressing an image blur caused by a separating discharge at the separation of the recording material from the conveyor belt. To fix record materials on a transportation belt, the recording material is charged by a adhering member to electrically adhere the recording material to the conveyor belt. When the recording material is separated from the conveyor belt, a separating discharge occurs between the recording material and the conveyor belt, as the recording material is charged. In order to reduce the faulty of the toner image on the recording material caused by the separating discharge, the voltage applied to the adhering member is controlled for example according to a current which the recording material receives at the transfer position to mutually cancel the charge received at the transfer position by the adhering member.

Abstract translation: 图像形成装置包括用于承载记录材料的传送带，能够抑制在记录材料与传送带分离时由分离排出引起的图像模糊。 为了将记录材料固定在传送带上，记录材料被粘附部件充电以将记录材料电粘附到传送带上。 当记录材料与传送带分离时，由于记录材料被充电，所以在记录材料和传送带之间发生分离放电。 为了减少由分离放电引起的记录材料上的调色剂图像的故障，施加到粘合部件的电压例如根据记录材料在转印位置接收的电流来控制，以相互取消收到的电荷 在粘接部件的移动位置。

公开(公告)号：US20090257779A1

公开(公告)日：2009-10-15

申请号：US12415822

申请日：2009-03-31

Applicant: Masaru Shimura ,  Michio Uchida ,  Ken Nakagawa ,  Seiji Saito ,  Kenji Kanari ,  Takamitsu Soda ,  Takaaki Akamatsu ,  Kazuhiro Doda ,  Takashi Shimada ,  Shuuichi Tetsuno ,  Shigeru Hoashi ,  Tomoya Kuruma

Inventor： Masaru Shimura ,  Michio Uchida ,  Ken Nakagawa ,  Seiji Saito ,  Kenji Kanari ,  Takamitsu Soda ,  Takaaki Akamatsu ,  Kazuhiro Doda ,  Takashi Shimada ,  Shuuichi Tetsuno ,  Shigeru Hoashi ,  Tomoya Kuruma

IPC: G03G15/00

CPC classification number: G03G15/0131 ,  G03G15/1615 ,  G03G15/50 ,  G03G21/1647 ,  G03G21/168 ,  G03G2215/0129 ,  G03G2215/0141 ,  G03G2215/0193 ,  G03G2221/1657

Abstract: An image forming apparatus for forming image on a recording medium includes a photosensitive member, a motor, a belt, and a drive member to rotate the belt, the drive member including a driven coupling. The apparatus also includes a drive coupling to rotate by a driving force generated by the motor, the drive coupling being movable in an axial direction to take an engagement position at which the driving force is transmittable to the driven coupling, and a release position. The apparatus further includes a transfer member to transfer a toner image onto the recording medium or the belt, a voltage application unit to apply a voltage to the transfer member, and a control unit to cause the voltage application unit to apply the voltage to the transfer member after the drive coupling moves to the engagement position and the driving force is transmitted to the driven coupling.

Abstract translation: 用于在记录介质上形成图像的图像形成装置包括感光部件，马达，皮带以及用于旋转皮带的驱动部件，该驱动部件包括从动联轴器。 该装置还包括通过由电动机产生的驱动力来旋转的驱动联接器，该驱动联接器可在轴向方向上移动以采取将驱动力传递到从动联接器的接合位置和释放位置。 所述设备还包括用于将调色剂图像转印到所述记录介质或所述带上的转印部件，向所述转印部件施加电压的电压施加单元，以及使所述电压施加单元向所述转印部施加电压的控制单元 驱动联轴器移动到接合位置并且驱动力被传递到从动联轴器之后的构件。

公开(公告)号：US20090202281A1

公开(公告)日：2009-08-13

申请号：US12425086

申请日：2009-04-16

Applicant: Kazuhiro Doda ,  Masaru Shimura ,  Shigeru Hoashi ,  Kenji Kanari ,  Seiji Saito ,  Takashi Shimada ,  Takaaki Akamatsu ,  Michio Uchida ,  Ken Nakagawa ,  Takamitsu Soda ,  Shuuichi Tetsuno

Inventor： Kazuhiro Doda ,  Masaru Shimura ,  Shigeru Hoashi ,  Kenji Kanari ,  Seiji Saito ,  Takashi Shimada ,  Takaaki Akamatsu ,  Michio Uchida ,  Ken Nakagawa ,  Takamitsu Soda ,  Shuuichi Tetsuno

IPC: G03G15/20

CPC classification number: G03G15/1615 ,  G03G15/1605 ,  G03G15/1685 ,  G03G2215/0129

Abstract: An image forming apparatus includes: an image bearing member for bearing a toner image; a belt for conveying the toner image; and a transfer device for rubbing the belt, and a surface of the transfer device, which is brought into contact with the belt includes linear concave portions or linear convex portions. The image forming apparatus of the present invention prevents a friction force between the belt and the transfer device rubbing the belt from increasing and brings a transfer member into a stable contact with the belt for conveying the toner image, thereby suppressing increase in drive torque of the belt which rubs the transfer device and suppressing occurrence of image failure.

Abstract translation: 图像形成装置包括：用于承载调色剂图像的图像承载部件; 用于传送调色剂图像的带; 以及用于摩擦带的传送装置，与传送带接触的传送装置的表面包括直线形凹部或线形凸部。 本发明的图像形成装置防止了带和传送装置摩擦带的摩擦力增加，并且使转印构件与用于输送调色剂图像的带保持稳定的接触，从而抑制了传送调色剂图像的驱动转矩的增加 皮带，其摩擦传送装置并抑制图像故障的发生。

公开(公告)号：US07512370B2

公开(公告)日：2009-03-31

申请号：US11623913

申请日：2007-01-17

Applicant: Yuusuke Shimizu ,  Keisuke Mochizuki ,  Atsutoshi Ando ,  Michio Uchida ,  Tomoo Akizuki

Inventor： Yuusuke Shimizu ,  Keisuke Mochizuki ,  Atsutoshi Ando ,  Michio Uchida ,  Tomoo Akizuki

IPC: G03G15/20

CPC classification number: G03G15/2064 ,  G03G2215/2016 ,  G03G2215/2019 ,  G03G2215/2035 ,  G03G2215/2061

Abstract: When a fixing device becomes uncontrollable and a large amount of electric power is continuously supplied to the heater, concentration of mechanical stress on a heater is suppressed, whereby shear fracture of the heater is prevented from occurring. A longitudinal region of the heater in which a heat generation resistive member is provided is supported by a heater support surface of a heater holder, and an opposed surface of the heater holder that is opposed to a longitudinal region of the heater in which the heat generation resistive member is not provided is designed not to be in contact with the heater.

Abstract translation: 当定影装置变得不可控制并且向加热器连续地供应大量电力时，抑制加热器上的机械应力集中，从而防止加热器的剪切断裂。 其中设置有发热电阻构件的加热器的纵向区域由加热器保持器的加热器支撑表面和与加热器的纵向区域相对的加热器支架的相对表面支撑，其中发热 不提供电阻构件设计为不与加热器接触。

公开(公告)号：US20060233575A1

公开(公告)日：2006-10-19

申请号：US11400410

申请日：2006-04-10

Applicant: Michio Uchida ,  Yuusuke Shimizu ,  Kazushi Ino

Inventor： Michio Uchida ,  Yuusuke Shimizu ,  Kazushi Ino

IPC: G03G15/20

CPC classification number: G03G15/2053 ,  G03G2215/00151 ,  G03G2215/2016 ,  G03G2215/2035

Abstract: The image heating apparatus includes a flexible sleeve, a sliding member for sliding on the inner periphery of the sleeve, a back-up member for forming a nip portion together with the sliding member through the sleeve, wherein a recording material for bearing an image is heated while being held and conveyed by the nip portion and a regulation member set by facing the edge surface of the sleeve in the generatrix direction to regulate the movement of the sleeve in the generatrix direction, the regulation surface having a regulation surface with which the edge surface of the sleeve contacts when the sleeve moves in the generatrix direction, wherein the regulation surface of the regulation member has a curved-surface area in which a line when the regulation surface is cut at a virtual plane almost parallel with the nip portion is a curved line expanede toward the edge surface of the sleeve. Thereby, an image heating apparatus is provided which is able to restrain deterioration of the durability of the flexible sleeve.

Abstract translation: 图像加热装置包括柔性套筒，用于在套筒的内周上滑动的滑动构件，用于通过套筒与滑动构件一起形成压合部的支撑构件，其中用于承载图像的记录材料是 在被夹持部保持和传送的同时被加热，以及通过在母线方向上面对套筒的边缘表面而设置的调节构件，以调节套筒在母线方向上的移动，调节表面具有调节表面，边缘 当套筒沿母线方向移动时，套筒的表面接触，其中调节构件的调节表面具有弯曲表面区域，其中调节表面在与夹持部分几乎平行的虚拟平面处被切割的线是 曲线朝向套筒的边缘表面展开。 由此，能够抑制柔性套筒的耐久性劣化的图像加热装置。

公开(公告)号：US07003253B2

公开(公告)日：2006-02-21

申请号：US10691497

申请日：2003-10-24

Applicant: Michio Uchida ,  Masao Umezawa ,  Atsutoshi Ando ,  Toshikazu Tsuchiya

Inventor： Michio Uchida ,  Masao Umezawa ,  Atsutoshi Ando ,  Toshikazu Tsuchiya

IPC: G03G15/20

CPC classification number: G03G15/2039 ,  G03G15/2032 ,  G03G2215/2035

Abstract: An image heating apparatus for heating an image formed on a recording material, including a heater, a holder for holding the heater, a rotating member rotating around the holder and being flexible and having a metal layer, and a pressure roller forming a nip with the heater across the rotating member, wherein the rotating member moves detaching from the pressure roller just after passing through a downstream end portion of a surface of the heater opposed to the pressure roller. Thus, an uneven heating of a toner image can be prevented even in a case where the recording material becomes undulated after passing the nip portion.

Abstract translation: 一种图像加热装置，用于加热形成在记录材料上的图像，包括加热器，用于保持加热器的保持器，围绕保持器旋转并且具有柔性并具有金属层的旋转构件，以及形成辊隙的加压辊 加热器横跨旋转构件，其中旋转构件刚好在通过与加压辊相对的加热器表面的下游端部分之后从压力辊移动。 因此，即使在通过夹持部之后记录材料变得波动的情况下，也可以防止调色剂图像的不均匀加热。

公开(公告)号：US20050123329A1

公开(公告)日：2005-06-09

申请号：US10993439

申请日：2004-11-22

Applicant: Michio Uchida ,  Toru Saito ,  Atsutoshi Ando ,  Tomoo Akizuki

Inventor： Michio Uchida ,  Toru Saito ,  Atsutoshi Ando ,  Tomoo Akizuki

IPC: G03G15/20 ,  G03G15/00

CPC classification number: G03G15/2064 ,  G03G15/2053 ,  G03G2215/0119 ,  G03G2215/2016 ,  G03G2215/2035

Abstract: The image heating apparatus includes a flexible rotatable member, a flexible rotatable member, a slidable member contacting an internal surface of the flexible rotatable member, a holder for holding the slidable member, and a pressure roller for applying a pressure to the flexible rotatable member thereby forming a nip portion with the slidable member, wherein a holding surface of the holder includes a first holding area of a crowned shape in which a central portion in a longitudinal direction of the holder protrudes more than both end portions toward the nip portion, and a second holding area of a crowned shape, which is provided at a downstream side of the first holding area in a moving direction of the flexible rotatable member and in which a central portion in a longitudinal direction of the holder protrudes more than both end portions toward the nip portion, and the second holding area has a crown amount larger than a crown amount of the first holding area. This configuration allows to suppress creases and undulations in a recording medium in an image forming apparatus.

Abstract translation: 图像加热装置包括柔性可旋转构件，柔性可旋转构件，与柔性可旋转构件的内表面接触的可滑动构件，用于保持可滑动构件的保持器和用于向柔性可旋转构件施加压力的压力辊 与所述可滑动构件形成夹持部，其中，所述保持器的保持面包括冠状的第一保持区域，所述保持器的纵向方向上的中心部分比朝向所述夹持部的两端部突出， 第二保持区域，其设置在柔性可旋转构件的移动方向上的第一保持区域的下游侧，并且保持器的纵向方向上的中心部分比两端部朝向 并且第二保持区域具有大于第一保持区域的表冠量的表冠量。 这种构造允许抑制图像形成装置中的记录介质中的折痕和起伏。

公开(公告)号：US5412460A

公开(公告)日：1995-05-02

申请号：US128246

申请日：1993-09-29

Applicant: Noritaka Okazaki ,  Ryuji Wataki ,  Eiji Nimura ,  Michio Uchida ,  Yuki Ito

Inventor： Noritaka Okazaki ,  Ryuji Wataki ,  Eiji Nimura ,  Michio Uchida ,  Yuki Ito

IPC: G03G15/16

CPC classification number: G03G15/167

Abstract: A transfer plate which also serves as a sheet guide plate is pushed by a torsion spring. A minimum gap less than 0.2 mm between a guide surface of the transfer plate and the surface of a photoreceptor drum is maintained to be smaller than the thickness of a transfer sheet by a spacer member provided on the guide surface. When the sheet passes through the gap between the drum surface and the guide surface, the transfer plate is pushed down by the sheet and the sheet is pressed onto a toner image formed on the drum surface with an appropriate pressure by the pushing force of the torsion spring. At this time, a transfer voltage is applied to the transfer plate, so that the toner image on the drum surface is transferred to the sheet.

Abstract translation: 用作片材引导板的转印板被扭转弹簧推动。 转印板的引导表面和感光鼓的表面之间的小于0.2mm的最小间隙通过设置在引导表面上的间隔件保持为小于转印片的厚度。 当片材通过鼓表面和引导表面之间的间隙时，转印板被片材向下推动，并且通过扭转的推力以适当的压力将片材压在形成在鼓表面上的调色剂图像上 弹簧。 此时，转印电压被施加到转印板上，使得转鼓表面上的调色剂图像转印到纸张上。

公开(公告)号：US08811882B2

公开(公告)日：2014-08-19

申请号：US12429997

申请日：2009-04-24

Applicant: Keisuke Mitsuhashi ,  Michio Uchida ,  Shoichi Zensai ,  Youhei Suzuki ,  Tomonori Shida ,  Takeshi Shinji ,  Tomoaki Nakai

Inventor： Keisuke Mitsuhashi ,  Michio Uchida ,  Shoichi Zensai ,  Youhei Suzuki ,  Tomonori Shida ,  Takeshi Shinji ,  Tomoaki Nakai

IPC: G03G15/14

CPC classification number: G03G15/5095 ,  G03G15/1665 ,  G03G15/6564 ,  G03G2215/00409 ,  G03G2215/00945

Abstract: The speed at which transfer-material enters a transfer region is controlled to prevent a phenomenon in which a toner image on an intermediate transfer belt is scraped by the leading edge of the transfer-material when the toner image is transferred onto the transfer-material. While the conveying speed of the transfer-material in a transfer nip coincides with the speed of the intermediate transfer belt, the transfer-material is conveyed at a speed lower than the peripheral speed of the intermediate transfer belt when the leading edge of the transfer-material comes into contact with the intermediate transfer belt, and the conveying speed of the transfer-material is increased by the time when the transfer-material enters the transfer nip.

Abstract translation: 控制转印材料进入转印区域的速度，以防止当调色剂图像转印到转印材料上时转印材料的前端刮过中间转印带上的调色剂图像的现象。 当转印料中转印材料的转印速度与中间转印带的速度重合时，转印材料的输送速度低于中间转印带的圆周速度时， 材料与中间转印带接触，并且当转印材料进入转印辊隙时转印材料的输送速度增加。