公开(公告)号：US09494894B2

公开(公告)日：2016-11-15

申请号：US14566472

申请日：2014-12-10

申请人： CANON KABUSHIKI KAISHA

发明人： Shuichi Tetsuno ,  Shinji Katagiri ,  Masaru Ohno

IPC分类号： G03G15/16

CPC分类号： G03G15/1605 ,  G03G2215/1614

摘要： Wheels configured to be supported by a metallic roller on an outside of end portions of a contact area and inside of end portions of the transfer belt in terms of a width direction are provided, and the wheels are formed of a non-conductive resin.

摘要翻译： 设置在宽度方向上由接触区域的端部和转印带的端部的内侧的金属辊支撑的轮子，并且车轮由非导电树脂形成。

公开(公告)号：US20140140726A1

公开(公告)日：2014-05-22

申请号：US14079009

申请日：2013-11-13

申请人： Takeshi FUKAO

发明人： Takeshi FUKAO

IPC分类号： G03G15/16

CPC分类号： G03G15/1615 ,  G03G2215/0132 ,  G03G2215/1614

摘要： An image forming apparatus includes a rotary shaft, a first image bearing member, a nip forming member, a moving device, and a restriction device. The first image bearing member bears a visible image on a surface thereof and is rotatable about the rotary shaft which is driven directly or indirectly. The nip forming member contacts the first image bearing member to form a transfer nip therebetween. The moving device is disposed on the rotary shaft and rotates to move the nip forming member to contact and separate from the first image bearing member. The restriction device inhibits rotation of the moving member in a state in which the nip forming member is separated from the first image bearing member by the rotation of the moving device.

摘要翻译： 图像形成装置包括旋转轴，第一图像承载部件，辊隙形成部件，移动装置和限制装置。 第一图像承载部件在其表面上具有可见图像，并且可以直接或间接驱动的旋转轴旋转。 压区形成部件接触第一图像承载部件，以在它们之间形成传送辊隙。 移动装置设置在旋转轴上并旋转以使夹持形成构件移动以与第一图像承载构件接触和分离。 限制装置通过移动装置的旋转来抑制夹持形成构件与第一图像承载构件分离的状态下的移动构件的旋转。

公开(公告)号：US08682190B2

公开(公告)日：2014-03-25

申请号：US13282944

申请日：2011-10-27

申请人： Yasuhiro Michishita

发明人： Yasuhiro Michishita

IPC分类号： G03G15/16

CPC分类号： G03G15/1675 ,  G03G2215/1614

摘要： An image forming apparatus includes a bias controller that controls a first application unit that applies a bias to a transfer member. The bias controller applies a reverse bias to the transfer member when a first region passes through a nip part. Then, when a second region passes through the nip part, the bias controller applies a fixed first forward bias to the transfer member. When a third region passes through the nip part, in order to implement the control the bias controller applies a variable second forward bias to the transfer member. The first forward bias is set at a predetermined value or above and increases a potential of the transfer member 46 to a level at which a toner image is transferred in the second region when the second region passes through the nip part.

摘要翻译： 图像形成装置包括：偏置控制器，其控制向转印构件施加偏压的第一施加单元。 当第一区域通过压区部分时，偏置控制器向转印构件施加反向偏压。 然后，当第二区域通过夹持部时，偏置控制器向传送部件施加固定的第一正向偏压。 当第三区域通过压区部分时，为了实现控制，偏压控制器向转移构件施加可变的第二正向偏压。 当第二区域通过压区部分时，第一正向偏压被设定在预定值以上并且将转印构件46的电位增加到在第二区域中调色剂图像转印的水平。

公开(公告)号：US08661680B2

公开(公告)日：2014-03-04

申请号：US12821432

申请日：2010-06-23

申请人： Akihiro Suzuki ,  Hidetoshi Ichige

发明人： Akihiro Suzuki ,  Hidetoshi Ichige

IPC分类号： B22D11/12

CPC分类号： G03G15/0818 ,  G03G2215/0861 ,  G03G2215/0863 ,  G03G2215/1614

摘要： A method for manufacturing a low-cost electrophotographic elastic roller having a good dimensional precision is provided. In that method, in which both end parts of a shaft core body are gripped and fixed in a vertical direction, an inclination of a central axis is corrected, a circular coating head including a circular slit is used so that the shaft core body is moved in the direction, and a elastic layer material is ejected from the slit to be coated on the shaft core body, the method includes: a maximum deflection coordinate in a longitudinal direction of the shaft core body is detected with a central axis of the shaft core body as a base point coordinate before coating; a central position of the head is moved at constant from the base point to the maximum during coating, and the position is moved to the base point after the head has reached the maximum.

摘要翻译： 提供了一种制造具有良好尺寸精度的低成本电子照相弹性辊的方法。 在这种方法中，将轴芯体的两个端部沿垂直方向夹紧并固定，校正中心轴线的倾斜度，使用包括圆形狭缝的圆形涂覆头，使得轴芯体移动 沿着该芯轴从要被涂布的狭缝喷出弹性层材料，该方法包括：利用轴芯的中心轴检测轴芯体的纵向最大偏转坐标 身体作为基点坐标涂层前; 头部的中心位置在涂覆期间从基点恒定地移动到最大值，并且在头部达到最大值之后位置移动到基点。

公开(公告)号：US08660452B2

公开(公告)日：2014-02-25

申请号：US13115212

申请日：2011-05-25

申请人： Seiji Saito ,  Tomoo Akizuki ,  Takeshi Shinji ,  Keisuke Ishizumi ,  Jun Matsumoto

发明人： Seiji Saito ,  Tomoo Akizuki ,  Takeshi Shinji ,  Keisuke Ishizumi ,  Jun Matsumoto

IPC分类号： G03G15/00 ,  G03G15/16

CPC分类号： H02M5/12 ,  G03G15/1675 ,  G03G15/5004 ,  G03G2215/1614 ,  H02M2001/0077

摘要： An image forming apparatus includes an image bearing member, a transfer member, and a power supply unit that outputs a voltage to the transfer member. The power supply unit includes a first voltage generation circuit that includes a piezoelectric transformer driven at a drive frequency within a predetermined frequency area to output a first voltage having a predetermined polarity, and a second voltage generation circuit that outputs a second voltage with a polarity opposite to the predetermined polarity. In addition, a control unit controls the power supply unit to output a superposed voltage as a voltage having the predetermined polarity and corresponding to a voltage output from the piezoelectric transformer by driving the piezoelectric transformer at a driven frequency out of range of the predetermined frequency area, with the superposed voltage being a voltage in which the first voltage and the second voltage are superposed.

摘要翻译： 图像形成装置包括图像承载部件，转印部件和向转印部件输出电压的电源单元。 电源单元包括：第一电压产生电路，其包括以预定频率区域内的驱动频率驱动的压电变压器，以输出具有预定极性的第一电压;以及第二电压产生电路，其输出极性相反的第二电压 达到预定的极性。 此外，控制单元控制电源单元输出叠加的电压作为具有预定极性的电压并且对应于从压电变压器输出的电压，通过驱动压电变压器在超出预定频率区域的范围内的驱动频率 ，叠加电压是第一电压和第二电压叠加的电压。

公开(公告)号：US08447217B2

公开(公告)日：2013-05-21

申请号：US12561982

申请日：2009-09-17

申请人： Tomohide Mori

发明人： Tomohide Mori

IPC分类号： G03G15/22

CPC分类号： G03G15/235 ,  G03G15/5025 ,  G03G2215/00772 ,  G03G2215/00776 ,  G03G2215/1614 ,  G03G2215/1623

摘要： A toner image can properly be transferred onto the second side of a paper sheet without being influenced by the toner image on the first side. There are provided a detection unit 20 for detecting overlap of the toner images on the first side and the second side of the paper sheet based on image data, and a transfer output adjustment unit 22 which changes a transfer voltage output for the second side in an area with the overlap of the toner images depending on the toner adhering amount of the first side.

摘要翻译： 调色剂图像可以适当地转印到纸张的第二面上，而不受第一面上的调色剂图像的影响。 提供了一种检测单元20，用于基于图像数据检测纸张的第一侧和第二侧上的调色剂图像的重叠;以及传送输出调节单元22，其改变第二侧的转印电压输出 区域，其中调色剂图像的重叠取决于第一侧的调色剂附着量。

公开(公告)号：US08433226B2

公开(公告)日：2013-04-30

申请号：US12890144

申请日：2010-09-24

申请人： Yujiro Nomura

发明人： Yujiro Nomura

IPC分类号： G03G15/01

CPC分类号： G03G15/1615 ,  G03G2215/00556 ,  G03G2215/0626 ,  G03G2215/1614 ,  G03G2215/1666

摘要： An image forming apparatus including: a belt-shaped image carrier configured to carry an image; a first imaging unit configured to transfer a first image to the image carrier; a second imaging unit configured to transfer a second image to the image carrier on which the first image is transferred by the first imaging unit; a drive roller configured to circulate the image carrier by winding the image carrier thereon; a roller on which the image carrier is wound; a transfer roller having a concaved portion on part of a circumferential surface thereof which comes into abutment with the image carrier wound around the roller via a recording material; a drive unit configured to drive the transfer roller; and a gripping portion disposed in the concaved portion and configured to grip the recording material.

摘要翻译： 一种图像形成装置，包括：被配置为承载图像的带状图像载体; 配置成将第一图像传送到图像载体的第一成像单元; 第二成像单元，被配置为将第二图像传送到由第一成像单元传送第一图像的图像载体; 驱动辊，其构造成通过在其上卷绕图像载体来循环图像载体; 卷绕图像载体的辊; 转印辊在其圆周表面的一部分上具有与通过记录材料缠绕在辊上的图像载体邻接的凹部; 构造成驱动所述转印辊的驱动单元; 以及设置在所述凹部中并构造成夹持所述记录材料的抓握部。

公开(公告)号：US08315541B2

公开(公告)日：2012-11-20

申请号：US12619824

申请日：2009-11-17

申请人： Jiro Kinokuni

发明人： Jiro Kinokuni

IPC分类号： G03G21/00

CPC分类号： G03G15/0233 ,  G03G15/0898 ,  G03G15/161 ,  G03G15/162 ,  G03G15/75 ,  G03G21/1821 ,  G03G2215/1614

摘要： An image forming apparatus includes a rotatable photosensitive member; a charging device for electrically charging the photosensitive member; a developing device for developing with toner an electrostatic latent image formed on the photosensitive member electrically charged by the charging device; a transfer device for transferring a toner image from the photosensitive member onto an image-receiving member; and an auxiliary charging device for electrically charging untransferred toner on the photosensitive member to a normal charge polarity before the photosensitive member is electrically charged by the charging device; wherein effective widths WPM, WCD, WDD, WTD, and WACD of the photosensitive member, the charging device, the developing device, the transfer device, and the auxiliary charging device satisfy: WPM>WCD>WACD≧WTD>WDD.

摘要翻译： 一种图像形成装置包括：可转动感光件; 用于对感光构件进行充电的充电装置; 用于通过调色剂显影形成在由充电装置充电的感光构件上的静电潜像的显影装置; 用于将调色剂图像从感光部件转印到图像接收部件上的转印装置; 以及辅助充电装置，用于在所述感光构件由所述充电装置充电之前，将所述感光构件上的未转印调色剂充电至正常充电极性; 其中感光构件，充电装置，显影装置，转印装置和辅助充电装置的有效宽度WPM，WCD，WDD，WTD和WACD满足：WPM> WCD>WACD≥WTD> WDD。

公开(公告)号：US08306465B2

公开(公告)日：2012-11-06

申请号：US12725695

申请日：2010-03-17

申请人： Jang-hee Yoon ,  Jeong-hwan Kim ,  Se-ra Lee

发明人： Jang-hee Yoon ,  Jeong-hwan Kim ,  Se-ra Lee

IPC分类号： G03G15/01

CPC分类号： G03G15/1605 ,  G03G15/0194 ,  G03G2215/0132 ,  G03G2215/1614

摘要： An image forming apparatus includes a plurality of optical scanning units to scan light modulated according to an image signal, a plurality of photoconductive drums to form a plurality of electrostatic latent images by the light scanned from the plurality of optical scanning units, a plurality of developing units to develop the plurality of electrostatic latent images formed on the plurality of photoconductive drums into a plurality of toner images, an intermediate transfer unit to transfer the plurality of toner images developed by the plurality of developing units, a plurality of first transfer rollers installed in the intermediate transfer unit to correspond to the plurality of photoconductive drums, respectively, and to apply transfer voltages that is used to transfer the plurality of toner images onto the intermediate transfer unit, a second transfer roller to transfer the plurality of toner images formed on the intermediate transfer unit onto a paper, and a fixing unit to fix the plurality of toner images transferred onto the paper, wherein the plurality of first transfer rollers includes the first transfer rollers of a first group in which distances between the first transfer rollers of the first group and the plurality of photoconductive drums, respectively, are sequentially reduced downstream along a direction that the intermediate transfer unit travels, and the first transfer roller of a second group is independent from the distances between the first transfer rollers of the first group and the plurality of photoconductive drums.

摘要翻译： 图像形成装置包括多个光扫描单元，用于扫描根据图像信号调制的光;多个感光鼓，通过从多个光学扫描单元扫描的光来形成多个静电潜像;多个显影 单元，将形成在多个感光鼓上的多个静电潜像显影成多个调色剂图像;中间转印单元，用于转印由多个显影单元显影的多个调色剂图像;多个第一转印辊，安装在 所述中间转印单元分别对应于所述多个感光鼓，并施加用于将所述多个调色剂图像转印到所述中间转印单元上的转印电压;第二转印辊，用于转印形成在所述中间转印单元上的多个调色剂图像; 中间转印单元到纸上，以及固定单元以固定 多个调色剂图像转印到纸张上，其中多个第一转印辊包括第一组的第一转印辊，其中第一组的第一转印辊和多个感光鼓之间的距离分别在下游顺序地减少 沿着中间转印单元行进的方向，第二组的第一转印辊与第一组的第一转印辊和多个感光鼓之间的距离是独立的。

公开(公告)号：US20120275809A1

公开(公告)日：2012-11-01

申请号：US13317508

申请日：2011-10-20

申请人： Sok-won Paik

发明人： Sok-won Paik

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G15/2042 ,  G03G2215/1614

摘要： A fixing unit for use in an image forming apparatus includes a heating roller, the heating roller being divided into a fixing area and a non-fixing area, in which the fixing area is heated to above a target temperature required for fixing of an image, and the non-fixing area has a temperature lower than the target temperature, a main coil which generates a main magnetic field for generating an induced current, and at least one secondary coil which generates a secondary magnetic field to extend an area of the main magnetic field, where the fixing area of the heating roller, when formed by the main magnetic field, has a width smaller than an entire width of a maximum size paper, and the fixing area, when formed by a combination of the main magnetic field and the secondary magnetic field, is extendable to the entire width of the maximum size paper.

摘要翻译： 用于图像形成装置的定影单元包括加热辊，加热辊被分成固定区域和非固定区域，其中固定区域被加热到高于图像定影所需的目标温度， 并且所述非固定区域具有低于所述目标温度的温度，产生用于产生感应电流的主磁场的主线圈和产生辅助磁场以延伸所述主磁场的区域的至少一个次级线圈 场，其中当由主磁场形成时，加热辊的固定区域的宽度小于最大尺寸纸张的整个宽度，并且当通过主磁场和 二次磁场可扩展到最大尺寸纸张的整个宽度。