公开(公告)号：US08175474B2

公开(公告)日：2012-05-08

申请号：US12470619

申请日：2009-05-22

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： G03G15/00 ,  G03G15/20

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：US08081912B2

公开(公告)日：2011-12-20

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： G03G15/01 ,  G03G21/00 ,  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

公开(公告)号：US06766123B2

公开(公告)日：2004-07-20

申请号：US09986300

申请日：2001-11-08

申请人： Shunichi Ebihara ,  Yoshiro Saito

发明人： Shunichi Ebihara ,  Yoshiro Saito

IPC分类号： G03G1501

CPC分类号： G03G15/0131 ,  G03G15/1695 ,  G03G2215/0119 ,  G03G2215/1628

摘要： An image forming apparatus includes a detected-current-controlled voltage charging device for charging a transfer material before a toner image is transferred to the transfer material by a transfer device. A current is produced when a voltage is applied to the charger device before the toner image is transferred. The voltage applied to the transferring device when the image-formed portion of the transferring material passes a transferring part is controlled on the basis of a current produced by a predetermined voltage applied to the transfer device when a leading edge portion of the transferring material passes the transferring part, and the predetermined voltage is controlled on the basis of the output from the current detector.

摘要翻译： 图像形成装置包括检测电流控制的电压充电装置，用于在通过转印装置将调色剂图像转印到转印材料之前对转印材料进行充电。 在转印调色剂图像之前向充电器装置施加电压时产生电流。 当转印材料的图像形成部分通过转印部分时施加到转印装置的电压基于当转印材料的前缘部分通过时由施加到转印装置的预定电压产生的电流来控制 并且基于来自电流检测器的输出来控制预定电压。

公开(公告)号：US08731449B2

公开(公告)日：2014-05-20

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：US08442409B2

公开(公告)日：2013-05-14

申请号：US13443226

申请日：2012-04-10

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：US20100080597A1

公开(公告)日：2010-04-01

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：US20090296147A1

公开(公告)日：2009-12-03

申请号：US12470608

申请日：2009-05-22

申请人： Tatsuya Kinukawa ,  Hitoshi Furukawa ,  Takao Kume ,  Kazuhiro Funatani ,  Masahide Hirai ,  Yoshiro Saito ,  Tomoaki Nakai

发明人： Tatsuya Kinukawa ,  Hitoshi Furukawa ,  Takao Kume ,  Kazuhiro Funatani ,  Masahide Hirai ,  Yoshiro Saito ,  Tomoaki Nakai

IPC分类号： G06F15/00

CPC分类号： G03G15/5058 ,  G03G15/0131 ,  G03G15/1605 ,  G03G15/5054 ,  G03G2215/00059 ,  G03G2215/00063

摘要： There is provided an image forming apparatus which shortens the time taken for circumference detection and measures the circumference at high precision without obstructing downsizing of the apparatus. To accomplish this, the image forming apparatus detects, at an arbitrary timing, the physical pattern of the image-formed surface of a rotation member that changes over time. In the second round, the image forming apparatus detects the second pattern at a timing a predetermined time after the arbitrary timing. By using the detected patterns, the image forming apparatus obtains information associated with the circumference of the rotation member.

摘要翻译： 提供了一种图像形成装置，其缩短了圆周检测所用的时间，并且高精度地测量圆周，而不会妨碍装置的小型化。 为了实现这一点，图像形成装置在任意定时检测随时间变化的旋转构件的图像形成表面的物理图案。 在第二轮中，图像形成装置在任意定时之后的预定时间的定时检测第二图案。 通过使用检测到的图案，图像形成装置获得与旋转构件的圆周相关联的信息。

公开(公告)号：US06947701B2

公开(公告)日：2005-09-20

申请号：US10896846

申请日：2004-07-23

申请人： Michio Uchida ,  Yoshiro Tsuchiya ,  Kazunori Takashima ,  Yoshiro Saito

发明人： Michio Uchida ,  Yoshiro Tsuchiya ,  Kazunori Takashima ,  Yoshiro Saito

IPC分类号： G03G15/00 ,  G03G15/23

CPC分类号： G03G15/6573 ,  G03G15/238 ,  G03G2215/0119 ,  Y10S271/902

摘要： There is provided an image forming apparatus that can suppress the formation of creases when forming images on both surfaces of a sheet and can greatly reduce the incidence of unprinted areas. The image forming apparatus has a sheet stacking section in which sheets are stacked, a sheet conveying section that conveys a sheet, an image forming section that forms an image on the sheet while the sheet is conveyed, a re-conveying section that again conveys the sheet with the image formed on a first surface thereof to the image forming section, and a sheet feeding section that feeds a sheet from the sheet stacking section or the re-conveying section to the image forming section. When a sheet is fed from the sheet stacking section for image formation on the first surface of the sheet by the image forming section, the sheet is fed at a first speed, and when a sheet is fed from the re-conveying section for image formation on a second surface of the sheet by the image forming section, the sheet is fed at a second speed that is slower than the first speed and is slower than the speed at which the sheet is conveyed by the sheet conveying section.

摘要翻译： 提供了一种能够在片材的两面形成图像时抑制折痕的形成的图像形成装置，能够大幅降低未印刷区域的发生。 图像形成装置具有堆叠片材的片材堆叠部分，输送片材的片材传送部分，在片材被输送时在片材上形成图像的图像形成部分，再次传送片材的再传送部分 片材，其上形成在其第一表面上的图像到图像形成部分;以及片材馈送部分，其将片材从片材堆叠部分或再传送部分馈送到图像形成部分。 当通过图像形成部从纸张堆叠部分在纸张的第一表面上进行图像形成的纸张供给时，以第一速度进给纸张，并且当从用于图像形成的再传送部分 在通过图像形成部分在片材的第二表面上，片材以比第一速度慢的第二速度进给，并且比由片材传送部分输送片材的速度慢。

公开(公告)号：US08565627B2

公开(公告)日：2013-10-22

申请号：US12470608

申请日：2009-05-22

申请人： Tatsuya Kinukawa ,  Hitoshi Furukawa ,  Takao Kume ,  Kazuhiro Funatani ,  Masahide Hirai ,  Yoshiro Saito ,  Tomoaki Nakai

发明人： Tatsuya Kinukawa ,  Hitoshi Furukawa ,  Takao Kume ,  Kazuhiro Funatani ,  Masahide Hirai ,  Yoshiro Saito ,  Tomoaki Nakai

IPC分类号： G03G15/00

CPC分类号： G03G15/5058 ,  G03G15/0131 ,  G03G15/1605 ,  G03G15/5054 ,  G03G2215/00059 ,  G03G2215/00063

摘要： There is provided an image forming apparatus which shortens the time taken for circumference detection and measures the circumference at high precision without obstructing downsizing of the apparatus. To accomplish this, the image forming apparatus detects, at an arbitrary timing, the physical pattern of the image-formed surface of a rotation member that changes over time. In the second round, the image forming apparatus detects the second pattern at a timing a predetermined time after the arbitrary timing. By using the detected patterns, the image forming apparatus obtains information associated with the circumference of the rotation member.

摘要翻译： 提供了一种图像形成装置，其缩短了圆周检测所用的时间，并且高精度地测量圆周，而不会妨碍装置的小型化。 为了实现这一点，图像形成装置在任意定时检测随时间变化的旋转构件的图像形成表面的物理图案。 在第二轮中，图像形成装置在任意定时之后的预定时间的定时检测第二图案。 通过使用检测到的图案，图像形成装置获得与旋转构件的圆周相关联的信息。

公开(公告)号：US08369726B2

公开(公告)日：2013-02-05

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： G03G15/00 ,  G03G15/20

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。