公开(公告)号：US20130028642A1

公开(公告)日：2013-01-31

申请号：US13556485

申请日：2012-07-24

申请人： Yasutaka Yagi ,  Yoshiro Saito ,  Tomonori Shida ,  Hiroyuki Seki

发明人： Yasutaka Yagi ,  Yoshiro Saito ,  Tomonori Shida ,  Hiroyuki Seki

IPC分类号： G03G15/16

CPC分类号： G03G15/1605 ,  G03G15/1685 ,  G03G2215/0129

摘要： An image forming apparatus includes an image bearing member on which a toner image is to be formed; a transfer device for transferring the toner image carried on the image bearing member; and a rotationally movable endless transfer belt onto which the toner image is to be transferred or on which a transfer material onto which the toner image is to be transferred is to be conveyed. The transfer device includes a sheet member contacted to an inner peripheral surface of the transfer belt while being supported by a supporting member at an end thereof and includes an urging member for urging the sheet member against the transfer belt in contact to the sheet member. The urging member includes a projected portion projected toward the transfer belt at its downstream end portion more than at its upstream end portion with respect to a movement direction of the transfer belt.

摘要翻译： 图像形成装置包括其上将形成调色剂图像的图像承载部件; 用于转印承载在图像承载部件上的调色剂图像的转印装置; 以及要转印调色剂图像的可旋转移动的环形转印带，或者将要转印有调色剂图像的转印材料。 转印装置包括与转印带的内周面接触的片状构件，同时由支撑构件在其端部支撑，并且包括用于将片材部件压靠在与片材构件接触的转印带上的推动构件。 推动构件包括相对于转印带的移动方向在其下游端部处朝向转印带向其上游端部突出的突出部分。

公开(公告)号：US20120195612A1

公开(公告)日：2012-08-02

申请号：US13443215

申请日：2012-04-10

申请人： Tatsuya Kinukawa ,  Yoshiro Saito ,  Tomoaki Nakai ,  Kazuhiro Funatani ,  Hiroyuki Seki ,  Kimitaka Ichinose

发明人： Tatsuya Kinukawa ,  Yoshiro Saito ,  Tomoaki Nakai ,  Kazuhiro Funatani ,  Hiroyuki Seki ,  Kimitaka Ichinose

IPC分类号： G03G15/08

CPC分类号： G03G15/1605 ,  G03G15/0131 ,  G03G15/5054 ,  G03G15/5058 ,  G03G2215/00059 ,  G03G2215/1661

摘要： There is provided an image forming apparatus that accurately obtains the dynamic characteristic of the apparatus when a foreign substance is adhered to a driving roller for driving an endless belt, such as a facing roller. To accomplish this, the image forming apparatus uses an optical sensor to detect information of a foreign substance on the facing roller. When it is determined that there is no foreign substance information, the image forming apparatus executes profile detection of an intermediate transfer belt using the nominal circumference of the facing roller. When the optical sensor detects foreign substance information, the image forming apparatus measures the circumference of the facing roller, and performs profile detection of the intermediate transfer belt using the measured circumference of the facing roller.

摘要翻译： 提供了一种图像形成装置，当外来物质粘附到用于驱动诸如面对辊的环形带的驱动辊时，精确地获得装置的动态特性。 为了实现这一点，图像形成装置使用光学传感器来检测面对辊上的异物的信息。 当确定没有异物信息时，图像形成装置使用面对辊的标称周长执行中间转印带的轮廓检测。 当光学传感器检测到异物信息时，图像形成装置测量面向辊的周长，并且使用所测量的面对辊的周长来执行中间转印带的轮廓检测。

公开(公告)号：US08103182B2

公开(公告)日：2012-01-24

申请号：US12565926

申请日：2009-09-24

申请人： Hiroyuki Seki ,  Yoshiro Saito ,  Kazuhiro Funatani ,  Masahide Hirai

发明人： Hiroyuki Seki ,  Yoshiro Saito ,  Kazuhiro Funatani ,  Masahide Hirai

IPC分类号： G03G15/16 ,  G03G15/01

CPC分类号： G03G15/0194 ,  G03G15/0136 ,  G03G2215/0119 ,  G03G2215/0193 ,  G03G2215/0196

摘要： An image forming apparatus includes a transfer roller that can be separated from an intermediate transfer belt. When an operational mode is switched from a multicolor mode to a mono-color mode, the image forming apparatus changes a rotational speed of the intermediate transfer belt to a level slower than a rotational speed of the intermediate transfer belt to be set in the multicolor mode to transfer a toner image to the intermediate transfer belt, then separates a first transfer member from the intermediate transfer belt, and after the first transfer member is separated from the intermediate transfer belt, the image forming apparatus increases the rotational speed of the intermediate transfer belt to a rotational speed to be set in the mono-color mode to transfer the toner image to the intermediate transfer belt.

摘要翻译： 图像形成装置包括可以与中间转印带分离的转印辊。 当操作模式从多色模式切换到单色模式时，图像形成装置将中间转印带的旋转速度改变到比要设置为多色模式的中间转印带的旋转速度慢的水平 将调色剂图像转印到中间转印带上，然后将第一转印部件与中间转印带分离，并且在第一转印部件与中间转印带分离之后，图像形成装置增加中间转印带的转速 到以单色模式设置的转速以将调色剂图像转印到中间转印带。

公开(公告)号：US20090297191A1

公开(公告)日：2009-12-03

申请号：US12470628

申请日：2009-05-22

申请人： Masahide Hirai ,  Yoshiro Saito ,  Kazuhiro Funatani ,  Hiroyuki Seki ,  Tatsuya Kinukawa ,  Yasutaka Yagi

发明人： Masahide Hirai ,  Yoshiro Saito ,  Kazuhiro Funatani ,  Hiroyuki Seki ,  Tatsuya Kinukawa ,  Yasutaka Yagi

IPC分类号： G03G15/00

CPC分类号： G03G15/1605 ,  G03G15/0131 ,  G03G15/161 ,  G03G15/5058 ,  G03G2215/00059 ,  G03G2215/1661

摘要： There is provided an image forming apparatus including a rotation member used for image forming and a detector for detecting light from the rotation member. First waveform data of an image-formed surface used to form an image on the rotation member is acquired by the detector. Second waveform data of the image-formed surface used to form an image on the rotation member is acquired. The second waveform data includes at least part of a detected section of the first waveform data. Information on the actual circumference of the rotation member is calculated based on matching between the acquired first and second waveform data. The acquired first waveform data and second waveform data are compared to determine whether or not to use the calculated information on the circumference. When it is determined not to use the calculated information on the circumference, information on the circumference of the rotation member is recalculated.

摘要翻译： 提供了一种图像形成装置，包括用于图像形成的旋转构件和用于检测来自旋转构件的光的检测器。 用于在旋转构件上形成图像的图像形成表面的第一波形数据由检测器获取。 获取用于在旋转构件上形成图像的图像形成表面的第二波形数据。 第二波形数据包括第一波形数据的检测部分的至少一部分。 基于所获取的第一和第二波形数据之间的匹配来计算关于旋转构件的实际圆周的信息。 比较所获取的第一波形数据和第二波形数据，以确定是否在圆周上使用所计算的信息。 当确定不在周长上使用计算的信息时，重新计算旋转构件的圆周上的信息。

公开(公告)号：US20090202279A1

公开(公告)日：2009-08-13

申请号：US12364757

申请日：2009-02-03

申请人： Yoshiro Saito ,  Keisuke Mitsuhashi ,  Michio Uchida ,  Tomonori Shida

发明人： Yoshiro Saito ,  Keisuke Mitsuhashi ,  Michio Uchida ,  Tomonori Shida

IPC分类号： G03G15/16

CPC分类号： G03G15/5095 ,  G03G2215/00734

摘要： 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

摘要翻译： 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