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41. 发明专利

JP2013072898A Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：JP2013072898A
公开(公告)日：2013-04-22
申请号：JP2011209874
申请日：2011-09-26
申请人： Fuji Xerox Co Ltd , 富士ゼロックス株式会社
发明人： NISHIDE SHUICHI , OKAMOTO TETSUJI , WATANABE KOICHI , OGIWARA ATSUSHI , SATO MASAHIRO , KITAMURA ATSUYUKI
IPC分类号： G03G15/16
摘要： PROBLEM TO BE SOLVED: To provide a technique capable of suppressing change in the position of a rear end portion in a conveying direction in which the floating in a recording material is suppressed from changing.SOLUTION: An image forming apparatus comprises: a photoreceptor drum 11 for holding an image on the outer peripheral surface; a transfer drum 21 for transferring an image held on the photoreceptor drum 11 in a transfer part Rr formed with the photoreceptor drum 11 to a recording material; a front end gripper 22 which rotates in synchronization with the transfer drum 21 and holds a rear end portion in the conveying direction of the recording material conveyed to the transfer part Tr; a paper suppressing part for suppressing the rear end portion in the conveying direction of the recording material held by the front end gripper 22 from floating, the paper suppressing part being arranged opposing to the outer peripheral surface of the transfer drum 21 and able to move relatively to the transfer drum 21; and a paper supply part 50 for supplying the recording material to the transfer drum 21. The paper suppressing part is located between a position Pa where the recording material reaches the transfer drum 21 and the transfer part Rr when the recording material is supplied from the paper supply part 50 to the transfer drum 21.
摘要翻译：解决的问题：提供一种技术，其能够抑制在抑制记录材料中的浮动的输送方向上的后端部的位置的变化。解决方案：图像形成装置包括：用于在外周面上保持图像的感光鼓11; 转印鼓21，用于将形成有感光鼓11的转印部分Rr中保持在感光鼓11上的图像转印到记录材料上; 前端夹具22，其与转印鼓21同步旋转并保持输送到转印部Tr的记录材料的输送方向上的后端部; 用于抑制由前端夹持器22保持的记录材料的传送方向上的后端部的纸张抑制部分浮起，纸张抑制部分布置成与转印鼓21的外周表面相对并能够相对移动到转印鼓21; 以及用于将记录材料供给到转印鼓21的供纸部50.纸张抑制部位于记录材料到达转印鼓21的位置Pa和从纸张供给记录材料时的转印部Rr之间供应部分50到转印鼓21.版权所有：（C）2013，JPO＆INPIT

42. 发明专利

JP2013057911A Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：JP2013057911A
公开(公告)日：2013-03-28
申请号：JP2011197612
申请日：2011-09-09
申请人： Fuji Xerox Co Ltd , 富士ゼロックス株式会社
发明人： OGIWARA ATSUSHI , KITAMURA ATSUYUKI , SATO MASAHIRO , OZAKI YOSHIFUMI , OKAMOTO TETSUJI , WATANABE KOICHI , NISHIDE SHUICHI
IPC分类号： G03G15/16 , G03G15/01 , G03G21/00
摘要： PROBLEM TO BE SOLVED: To make it difficult to discriminate contents of an image which has been erroneously transferred to a transfer member.SOLUTION: An image forming apparatus includes: a photoreceptor drum 11 which is rotatably arranged and holds a toner image on the outer circumferential surface thereof; a transfer drum 21 which is rotatably arranged and transfers the toner image on the photoreceptor drum 11 to a sheet S held between the drum itself and the photoreceptor drum 11; a leading-end gripper 22 and a rear-end gripper 23 that hold the sheet S, which is fed to the transfer drum 21, on the outer circumferential surface of the transfer drum 21. On the outer circumferential surface of the transfer drum 21, an elastic layer 21B constituted by an elastic member containing a foam body is attached. When an image for output is erroneously transferred to the elastic layer 21B, for example by a jamming of the sheet S, the image for output which has been erroneously transferred to the elastic layer 21B (the erroneously transferred image) is removed by applying a bias, after which an overwriting image is formed on the elastic layer 21B in order to camouflage the erroneously transferred image.
摘要翻译：要解决的问题：难以区分已经错误传送到传送部件的图像的内容。解决方案：图像形成装置包括：感光鼓11，其被可旋转地布置并保持其外圆周表面上的调色剂图像; 转印鼓21，其可旋转地布置并将感光鼓11上的调色剂图像转印到保持在感光鼓本身和感光体鼓11之间的纸张S上; 前端夹持器22和后端夹持器23，其将供给到转印鼓21的纸张S保持在转印鼓21的外周面上。在转印鼓21的外周面上，安装由包含泡沫体的弹性构件构成的弹性层21B。当用于输出的图像被错误地传送到弹性层21B时，例如通过纸张S的卡住，通过施加偏压来去除已经错误地传递到弹性层21B的输出图像（错误传送的图像）之后，在弹性层21B上形成覆盖图像，以伪装错误传送的图像。版权所有（C）2013，JPO＆INPIT

43. 发明专利

JP2012173564A Image forming device 有权
标题翻译：图像形成装置
公开(公告)号：JP2012173564A
公开(公告)日：2012-09-10
申请号：JP2011036305
申请日：2011-02-22
申请人： Fuji Xerox Co Ltd , 富士ゼロックス株式会社
发明人： SUZUKI WATARU , KITAMURA ATSUYUKI , SATO MASAHIRO , OGIWARA ATSUSHI , OKAMOTO TETSUJI , WATANABE KOICHI , NISHIDE SHUICHI
IPC分类号： G03G15/16
摘要： PROBLEM TO BE SOLVED: To suppress density unevenness in transfer due to eccentricity of a transfer member or a recording material holding body.SOLUTION: An image forming device comprises: a photoreceptor drum 11 which rotates while holding an image on its peripheral surface; a transfer drum 21 which has an outer peripheral surface and an inner peripheral surface as well as a cylindrical shape, of which both ends in the axial direction are opened, and rotates while contacting with the peripheral surface of the photoreceptor drum 11 to transfer the image on the photoreceptor drum 11 to a sheet S held on the outer peripheral surface; a transfer drum driving roll 83 which contacts with the inner peripheral surface of the transfer drum 21 at the upstream side in the rotating direction of the transfer drum 21 from a transfer nip part, in which the transfer drum 21 and the photoreceptor drum 11 are contacted, and rotationally drives the transfer drum 21; and a transfer drum supporting roll 31 which rotatably comes into contact with the outer peripheral surface of the transfer drum 21 at the upstream side in the rotating direction of the transfer drum 21 from a driving nip part in which the transfer drum 21 and the transfer drum driving roll 83 are contacted.
摘要翻译：要解决的问题：抑制由于转印部件或记录材料保持体的偏心引起的转印中的浓度不均匀性。解决方案：图像形成装置包括：感光鼓11，其在其外周表面上保持图像的同时旋转; 具有外周面和内周面以及圆筒状的转印鼓21，其轴向两端开放，并与感光鼓11的周面接触转动，以转印图像感光鼓11上的纸张S保持在外周面上; 转印鼓驱动辊83，其从转印辊21的转印方向上游侧的转印鼓21的内周面与转印辊21和感光鼓11接触的转印辊隙部接触并旋转地驱动转印鼓21; 以及转印鼓支撑辊31，其从转印鼓21的转动方向的上游侧可转动地与转印鼓21的外周表面接触，转印鼓支承辊31的转印鼓21和转印鼓驱动辊83接触。版权所有（C）2012，JPO＆INPIT

44. 发明专利

JP2012047786A Image forming device 有权
标题翻译：图像形成装置
公开(公告)号：JP2012047786A
公开(公告)日：2012-03-08
申请号：JP2010186959
申请日：2010-08-24
申请人： Fuji Xerox Co Ltd , 富士ゼロックス株式会社
发明人： SATO MASAHIRO , KITAMURA ATSUYUKI , OGIWARA ATSUSHI , MURAKAMI JUNICHI , OKAMOTO TETSUJI , WATANABE KOICHI , NISHIDE SHUICHI
IPC分类号： G03G15/01 , G03G15/00 , G03G15/08
摘要： PROBLEM TO BE SOLVED: To reduce a shock occurring at a moving body when the moving body which is moving by driving is externally stopped.SOLUTION: An image forming device includes a worm wheel 14c for transmitting a driving force that rotates a rotary development device 14 in an arrow C direction; a worm 32e for transmitting the driving force that rotates the rotary development device 14 in an arrow C direction by meshing with the worm wheel 14c; a rotary shaft 32b for supporting the worm 32e so as to allow a movement of the worm 32e in a drive-reaction force direction opposite to the drive transmission direction (the arrow C direction) in a contact area between the worm 32e and the worm wheel 14c; a compression spring 32f that energizes the worm 32e supported by the rotary shaft 32b toward the drive transmission direction; and a stopper 33a that restricts the rotation of the rotary development device 14 by contacting a positioning wheel 14b provided to the rotary development device 14.
摘要翻译：要解决的问题：当通过驾驶移动的移动体在外部停止时，减少在移动体发生的冲击。解决方案：图像形成装置包括：用于传递旋转显影装置14沿箭头C方向旋转的驱动力的蜗轮14c; 蜗杆32e，用于传递通过与蜗轮14c啮合而使旋转显影装置14沿箭头C方向旋转的驱动力; 用于支撑蜗杆32e的旋转轴32b，以便在蠕虫32e和蜗轮之间的接触区域中允许蜗杆32e在与驱动传递方向（箭头C方向）相反的驱动反作用力方向上移动 14C; 压缩弹簧32f，其使由旋转轴32b支撑的蜗杆32e朝向驱动传递方向通电; 以及通过接触设置在旋转显影装置14上的定位轮14b来限制旋转显影装置14的旋转的止挡件33a。（C）2012，JPO＆INPIT

45. 发明专利

JP2012022230A Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：JP2012022230A
公开(公告)日：2012-02-02
申请号：JP2010161406
申请日：2010-07-16
申请人： Fuji Xerox Co Ltd , 富士ゼロックス株式会社
发明人： MURAKAMI JUNICHI , KITAMURA ATSUYUKI , SATO MASAHIRO , OGIWARA ATSUSHI , OKAMOTO TETSUJI , WATANABE KOICHI , NISHIDE SHUICHI
IPC分类号： G03G15/16
摘要： PROBLEM TO BE SOLVED: To suppress misalignment of a transfer position caused when an image held by an image holding body is transferred to a sheet held by a transfer member.SOLUTION: An image forming apparatus 1 of the present invention includes: a photoreceptor drum 11 which has a first diameter, is disposed as rotatable, and holds an image on an outer circumference face thereof; a transfer drum 21 which has a second diameter larger than the first diameter, is disposed as rotatable in the same direction as the photoreceptor drum 11 in a region opposing to the photoreceptor drum 11, and transfers an image held by the photoreceptor drum 11 onto a sheet S nipped between itself and the photoreceptor drum 11; a top gripper 23 fixed to the transfer drum 21 and holding a top end in a conveying direction of the sheet S supplied to the transfer drum 21 on the outer circumference face of the transfer drum 21; and a control unit 100 controlling the circumferential speed of the photoreceptor drum 11 to be faster than the circumferential speed of the transfer drum 21.
摘要翻译：要解决的问题：抑制将由图像保持体保持的图像转印到由转印部件保持的纸张时引起的转印位置的未对准。解决方案：本发明的图像形成装置1包括：具有第一直径的感光鼓11，其可旋转地设置并保持在其外周面上的图像; 具有大于第一直径的第二直径的转印鼓21在与感光鼓11相对的区域中沿与感光鼓11相同的方向设置为可旋转，并将由感光鼓11保持的图像转印到片材S夹在其自身与感光鼓11之间; 固定在转印鼓21上并保持在转印鼓21的外周面上供给到转印鼓21的纸张S的输送方向上的顶端的顶部夹具23; 控制单元100控制感光鼓11的圆周速度比转印鼓21的圆周速度更快。（C）2012年，JPO＆INPIT

46. 发明专利

JP2011209466A Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：JP2011209466A
公开(公告)日：2011-10-20
申请号：JP2010076279
申请日：2010-03-29
申请人： Fuji Xerox Co Ltd , 富士ゼロックス株式会社
发明人： OKAMOTO TETSUJI , SATO MASAHIRO , OGIWARA ATSUSHI , MURAKAMI JUNICHI , WATANABE KOICHI , NISHIDE SHUICHI , KITAMURA ATSUYUKI
IPC分类号： G03G15/16
CPC分类号： G03G15/6558 , G03G2215/00561
摘要： PROBLEM TO BE SOLVED: To suppress positional deviation of an image on a recording material.SOLUTION: An image forming apparatus 1 includes: a photoreceptor drum 11 that holds an image on the outer circumferential surface thereof; a transfer drum 21 that is rotatably disposed facing the photoreceptor drum 11, configured to transfer the image held on the photoreceptor drum 11 to a sheet S inserted between the photoreceptor drum 11 and the transfer drum 21; a leading-end gripper 23 that holds the leading-end side in the conveying direction of the sheet S, which is fed to the transfer drum 21, between the leading-end gripper and the outer circumferential surface of the transfer drum 21, in such the manner to restrict displacement of the sheet S in the conveying direction and to restrict movement of the sheet S in a direction away from the transfer drum 21; and a rear-end gripper 27 that holds a rear-end side in the conveying direction of the sheet S held by the leading-end gripper 23 between the rear-end gripper and the outer circumferential surface of the transfer drum 21, in such the manner to allow displacement of the sheet S in the conveying direction and to restrict movement of the sheet S in the direction away from the transfer drum 21.
摘要翻译：要解决的问题：抑制记录材料上的图像的位置偏差。解决方案：图像形成装置1包括：感光鼓11，其在其外周面上保持图像; 可转动地设置在与感光体鼓11相对的转印鼓21，其被配置为将保持在感光鼓11上的图像转印到插入感光鼓11和转印鼓21之间的纸张S上; 在前端夹持器和转印鼓21的外周面之间，将前端侧保持在输送到转印鼓21的纸张S的输送方向上的前端侧夹持器23 限制片材S沿输送方向的移动并限制片材S沿远离转印鼓21的方向的移动的方式; 以及后端夹持器27，该后端夹持器27将后端夹持器和转印鼓21的外周面之间的前端夹持器23保持的片材S的传送方向上的后端侧保持在这样的位置允许片材S沿输送方向移动并且限制片材S沿远离转印鼓21的方向的移动。

47. 发明专利

JP2007127949A Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：JP2007127949A
公开(公告)日：2007-05-24
申请号：JP2005322227
申请日：2005-11-07
申请人： Fuji Xerox Co Ltd , 富士ゼロックス株式会社
发明人： OGIWARA ATSUSHI , GOTO HIROBUMI
IPC分类号： G03G15/14 , B65H5/02 , B65H7/06 , G03G15/00 , G03G15/16 , G03G21/00
CPC分类号： G03G15/657 , G03G2215/00561
摘要： PROBLEM TO BE SOLVED: To correct the skew of a recording medium to which an image has been transferred, by detecting the skew of the recording medium. SOLUTION: A control part 12 calculates a skew amount from detection timing of a jamming detection sensor 54 on an IN side and a jamming detection sensor 55 on an OUT side, and controls HVs 1 and 2 according to the skew amount, and controls voltage applied to needle type discharge members 62 and 64, whereby recording paper peeling force is made to differ between on the IN side and the OUT side so as to correct the skew of the recording paper P to which the image has been transferred. The recording paper P is thereby prevented from being wrinkled in a fixing device. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：通过检测记录介质的偏斜来校正已传送图像的记录介质的偏斜。解决方案：控制部分12计算出在IN侧的干扰检测传感器54的检测定时和OUT侧的干扰检测传感器55的偏斜量，并根据偏斜量控制HV1和2，以及控制施加到针型排出构件62和64的电压，由此在IN侧和OUT侧之间使记录纸剥离力不同，以便校正已经传送图像的记录纸P的歪斜。从而防止记录纸P在定影装置中起皱。版权所有（C）2007，JPO＆INPIT

48. 发明专利

JP2006215370A Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：JP2006215370A
公开(公告)日：2006-08-17
申请号：JP2005029254
申请日：2005-02-04
申请人： Fuji Xerox Co Ltd , 富士ゼロックス株式会社
发明人： OGIWARA ATSUSHI , YAMADA KUNIO , ANDO MAKOTO
IPC分类号： G03G15/00 , B41J2/01 , G01N21/47 , G01N21/892 , G03G21/00
摘要： PROBLEM TO BE SOLVED: To make it possible to determine whether or not stripes occur in an image.
SOLUTION: A plurality of reference images being long in a sub scanning direction, and whose width is shorter than the detection width of an optical sensor are formed shifting in a main scanning direction and the sub scanning direction. When there are no stripe narrower than the detection width of the optical sensor, the extent of a sensor output signal is within a prescribed normal one(b). Meanwhile, when there are the white stripes W narrower than the detection width of the optical sensor (c), the output of the optical sensor which read the reference image is affected by the white stripes, and the density of the reference image is reduced, and the extent of the output signal is lower than the normal one (h and i). By determining whether or not the optical sensor output signal for an area where the reference image for detecting the stripe is completely stored in the sensor detection area is within the normal extent in such the manner, the occurrence of the white stripe narrower than the width of the detection area in the main scanning direction of the optical sensor can be detected.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：使得可以确定条纹是否发生在图像中。解决方案：沿主扫描方向和副扫描方向形成在副扫描方向上长且宽度短于光学传感器的检测宽度的多个参考图像。当没有比光学传感器的检测宽度窄的条带时，传感器输出信号的范围在规定的正常（b）范围内。同时，当存在比光学传感器（c）的检测宽度窄的白色条纹W时，读取参考图像的光学传感器的输出受到白色条纹的影响，并且参考图像的浓度降低，输出信号的范围低于正常值（h和i）。通过确定用于检测条纹的参考图像的区域的光学传感器输出信号是否完全存储在传感器检测区域中，以这种方式处于正常范围内，白条的出现比宽度窄可以检测光学传感器的主扫描方向上的检测区域。版权所有（C）2006，JPO＆NCIPI

49. 发明专利

JP2006215369A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2006215369A
公开(公告)日：2006-08-17
申请号：JP2005029252
申请日：2005-02-04
申请人： Fuji Xerox Co Ltd , 富士ゼロックス株式会社
发明人： OGIWARA ATSUSHI
IPC分类号： G03G15/16 , G03G21/14
摘要： PROBLEM TO BE SOLVED: To prevent soiling on the rear side of paper, regarding an image forming apparatus wherein a toner image formed on a carrier is transferred to an intermediate transfer medium, thereafter, the image transferred to the intermediate transfer medium is transferred to the paper. SOLUTION: Regarding the image forming apparatus wherein the toner image formed on the photoreceptor is transferred to the intermediate transfer medium, thereafter, the image transferred to the intermediate transfer medium is transferred to the paper by a transfer roller, a patch image is formed on the photoreceptor, and the formed patch image is transferred to the intermediate transfer medium, further, when the patch image transferred to the intermediate transfer medium passes through the position of the transfer roller, a voltage having a polarity opposite to that of a transfer voltage and of ≥50 V and ≤500 V is applied in between the transfer roller and the counter roll. Consequently, the soiling on the rear side of the paper is made equal to or below an allowable extent Gmax. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了防止纸背面的污染，关于其中形成在载体上的调色剂图像转印到中间转印介质的图像形成装置，此后转印到中间转印介质的图像是转移到论文。解决方案：关于在感光体上形成的调色剂图像转印到中间转印介质上的图像形成装置，此后，转印到中间转印介质的图像通过转印辊转印到纸上，贴片图像并且形成的贴片图像被转印到中间转印介质上，此外，当转印到中间转印介质的贴片图像通过转印辊的位置时，具有极性与转印的极性相反的电压在转印辊和对位辊之间施加≥50V和≤500V的电压。因此，将纸的后侧的污物制成等于或低于允许范围Gmax。版权所有（C）2006，JPO＆NCIPI

50. 发明专利

JP2005274685A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2005274685A
公开(公告)日：2005-10-06
申请号：JP2004084600
申请日：2004-03-23
申请人： Fuji Xerox Co Ltd , 富士ゼロックス株式会社
发明人： OGIWARA ATSUSHI , INABA SHIGERU , NAGAMORI YOSHITAKA , TANAKA KOYA , NINOMIYA MASANOBU , HASEGAWA TOMOAKI
IPC分类号： G03G21/00 , G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus capable of preventing the deterioration of developer by discharging the developer neither too much nor too little. SOLUTION: In the case of forming an image by forming an electrostatic latent image corresponding to image data showing an image to be formed on a photoreceptor drum 16, developing the electrostatic latent image with toner by a developing unit 22 where the developer containing the toner and carrier are stored, and transferring the obtained toner image to the intermediate transfer belt 14, the consumption of the toner is predicted based on the image data, and the opening of a developer discharge port 45 is derived based on the predicted toner consumption (throughput), and the opening is set in a driving part 54 for adjusting the opening of the developer discharge port 45. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种能够通过将显影剂排出太多也不太少而能够防止显影剂劣化的图像形成装置。解决方案：在通过形成对应于显示要形成在感光鼓16上的图像的图像数据的静电潜像来形成图像的情况下，通过显影单元22将调色剂显影静电潜像，其中含有存储调色剂和载体，并将获得的调色剂图像转印到中间转印带14，基于图像数据预测调色剂的消耗，并且基于预测的调色剂消耗量导出显影剂排出口45的打开（通过量），并且开口设置在用于调节显影剂排出口45的打开的驱动部分54中。（C）版权所有（C）2006，JPO＆NCIPI

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