公开(公告)号：US20120237260A1

公开(公告)日：2012-09-20

申请号：US13415170

申请日：2012-03-08

申请人： Kenji SENGOKU ,  Ryuuichi Mimbu ,  Junpei Fujita ,  Osamu Ichihashi

发明人： Kenji SENGOKU ,  Ryuuichi Mimbu ,  Junpei Fujita ,  Osamu Ichihashi

IPC分类号： G03G15/00 ,  B65G23/44 ,  B65G45/10

CPC分类号： G03G15/161 ,  G03G15/1615 ,  G03G2215/0129 ,  G03G2215/0193 ,  G03G2215/1661

摘要： An image forming apparatus includes: a belt unit that includes a belt-shaped image carrier stretched around and driven to rotate by a plurality of rollers; a belt tensioning unit that includes a tensioning member that is brought into contact with an image carrying surface of the belt-shaped image carrier and applies tension to the belt-shaped image carrier; and a cleaning unit that includes a cleaning member that is brought into contact with the image carrying surface of the belt-shaped image carrier and cleans the image carrying surface. The cleaning unit is supported by the belt tensioning unit in an attachable and detachable manner.

摘要翻译： 图像形成装置包括：带单元，其包括被多个辊延伸并被多个辊旋转的带状图像载体; 带张紧单元，其包括与带状图像载体的图像承载表面接触并且向带状图像载体施加张力的张紧构件; 以及清洁单元，其包括与带状图像载体的图像承载表面接触并清洁图像承载表面的清洁构件。 清洁单元由皮带张紧单元以可附接和可拆卸的方式支撑。

公开(公告)号：US08270875B2

公开(公告)日：2012-09-18

申请号：US12560796

申请日：2009-09-16

申请人： Junpei Fujita ,  Toshitaka Yamaguchi ,  Ryoh Tanoue ,  Masaharu Furuya ,  Takuya Sekine ,  Katsuhito Haruno

发明人： Junpei Fujita ,  Toshitaka Yamaguchi ,  Ryoh Tanoue ,  Masaharu Furuya ,  Takuya Sekine ,  Katsuhito Haruno

IPC分类号： G03G21/00

CPC分类号： G03G15/1605 ,  G03G15/6564 ,  G03G15/657 ,  G03G2215/00565 ,  G03G2215/1666

摘要： An image forming apparatus includes a toner image carrying member, an image transfer device, a fixing device, a registration unit, a guide member, an upstream-side transportation unit, and a downstream-side transportation unit. The image transfer device transfers a toner image from the toner image carrying member to a recording medium. The fixing device fixes the toner image. The registration unit transports the recording medium. The guide member guides the recording medium. The upstream-side transportation unit includes an upstream-side transportation member, disposed at an upstream side in the transport direction of the recording medium. The downstream-side transportation unit includes the downstream-side transportation member, disposed at a downstream side in the transport direction of the recording medium. The upstream-side transportation unit includes an upstream-side positioning member to position the guide member to the upstream-side transportation member. The downstream-side transportation unit includes a downstream-side positioning member to position the guide member to the downstream-side transportation member.

摘要翻译： 图像形成装置包括调色剂图像承载构件，图像转印装置，定影装置，配准单元，引导构件，上游侧输送单元和下游侧输送单元。 图像转印装置将调色剂图像从调色剂图像承载构件转印到记录介质。 定影装置固定调色剂图像。 记录单元传送记录介质。 引导构件引导记录介质。 上游侧输送单元包括设置在记录介质输送方向的上游侧的上游侧输送部件。 下游侧输送单元包括设置在记录介质输送方向的下游侧的下游侧输送部件。 上游侧输送单元包括将引导构件定位到上游侧输送构件的上游侧定位构件。 下游侧输送单元包括将引导构件定位到下游侧输送构件的下游侧定位构件。

公开(公告)号：US08135319B2

公开(公告)日：2012-03-13

申请号：US12427377

申请日：2009-04-21

申请人： Junpei Fujita

发明人： Junpei Fujita

IPC分类号： G03G15/16

CPC分类号： G03G15/657 ,  G03G2215/00413

摘要： A transferer, including a guide member having a plate-shaped guide face and leading a transfer material after a toner is transferred thereonto, wherein the guide member has an edge pointing to the feeding direction of the transfer material and having plural comb-like structures perpendicular to the feeding direction thereof.

摘要翻译： 一种转印器，包括具有板状引导面的引导构件，并且在将调色剂转印到其上之后引导转印材料，其中引导构件具有指向转印材料的进给方向的边缘并具有垂直于多个梳状结构 到其进给方向。

公开(公告)号：US20110286759A1

公开(公告)日：2011-11-24

申请号：US13093217

申请日：2011-04-25

申请人： Osamu ICHIHASHI ,  Ryuuichi Mimbu ,  Kenji Sengoku ,  Junpei Fujita

发明人： Osamu ICHIHASHI ,  Ryuuichi Mimbu ,  Kenji Sengoku ,  Junpei Fujita

IPC分类号： G03G15/00 ,  G03G15/16

CPC分类号： G03G15/1665 ,  G03G15/167 ,  G03G2215/0129 ,  G03G2215/0193

摘要： An image forming apparatus includes a contact member supplied with voltage by a voltage application device, to contact an object; a rotary member rotatable about a rotation fulcrum shaft fixed to an image forming apparatus, to support the contact member; an biasing member to urge the rotary member to press the contact member against the object; a rotary conductive member fixed to the rotary member and connected electrically to the contact member; a main body side conductive member fixed to the rotation fulcrum shaft at the main body side and connected electrically to the voltage application device; and a conductive connector provided along the rotation fulcrum shaft to contact the rotary conductive member in an axial direction to connect electrically the main body side conductive member and the rotary conductive member. A contact of the conductive connector and a contact of the rotary conductive member are unfixed.

摘要翻译： 图像形成装置包括由电压施加装置供给电压的接触构件，以接触物体; 旋转构件，可绕固定到图像形成装置的旋转支点轴旋转，以支撑所述接触构件; 偏压构件，其推动所述旋转构件将所述接触构件压靠在所述物体上; 旋转导电构件，其固定到所述旋转构件并且电连接到所述接触构件; 主体侧导电构件，其固定在主体侧的旋转支点轴上，并与电压施加装置电连接; 以及沿着旋转支点轴设置的导电连接器，以沿轴向接触旋转导电构件，以将主体侧导电构件和旋转导电构件电连接。 导电连接器和旋转导电构件的触点的接触不固定。

公开(公告)号：US20100221029A1

公开(公告)日：2010-09-02

申请号：US12708983

申请日：2010-02-19

申请人： Ryuichi MINBU ,  Kenji SENGOKU ,  Junpei FUJITA ,  Osamu ICHIHASHI

发明人： Ryuichi MINBU ,  Kenji SENGOKU ,  Junpei FUJITA ,  Osamu ICHIHASHI

IPC分类号： G03G15/16

CPC分类号： G03G15/0131 ,  G03G15/161

摘要： To provide an image forming apparatus capable of increasing the life of a rotating cam while preventing the occurrence of a shock jitter and transfer failure. The image forming apparatus is configured to execute a forced movement process for rotating the rotating cam to forcibly move a secondary transfer roller against a biasing force of a bias coil spring at a pre-entry timing prior to the entry of the front edge of a recording sheet into a secondary transfer position, and a pressure intensifying process for rotating the rotating cam to increase transfer pressure at a timing immediately after the entry of the front edge of the recording sheet into the secondary transfer position. As the forced movement process, the image forming apparatus executes, alternately, a first forced movement process for normally driving and rotating the rotating cam, and a second forced movement process for inversely driving and rotating the rotating cam, at a predetermined timing.

摘要翻译： 提供能够在防止发生震动抖动和转印失败的同时延长旋转凸轮的寿命的图像形成装置。 图像形成装置被配置为执行强制移动处理，用于使旋转凸轮旋转，以抵抗偏置螺旋弹簧的偏置力强迫移动二次转印辊，在进入记录的前边缘之前的预录入时刻 以及用于使旋转凸轮旋转以在紧接在记录纸的前边缘进入二次转印位置之后的定时增加转印压力的增压过程。 作为强制移动处理，图像形成装置交替地执行用于正常地驱动和旋转旋转凸轮的第一强制移动处理和用于在预定定时反转驱动和旋转旋转凸轮的第二强制移动处理。

公开(公告)号：US20100142985A1

公开(公告)日：2010-06-10

申请号：US12628649

申请日：2009-12-01

申请人： Ryuichi MINBE ,  Katsuya Kawagoe ,  Kenji Sengoku ,  Junpei Fujita ,  Osamu Ichihashi

发明人： Ryuichi MINBE ,  Katsuya Kawagoe ,  Kenji Sengoku ,  Junpei Fujita ,  Osamu Ichihashi

IPC分类号： G03G15/16

CPC分类号： G03G15/163 ,  G03G5/082 ,  G03G15/161 ,  G03G15/2032 ,  G03G2215/00738

摘要： A secondary transfer facing roller includes a roller part that has a through-hole penetrating in a rotary shaft line direction at a rotation center position, and a penetrating shaft member penetrating the through-hole of the roller part and spinning the roller part on a surface of the penetrating shaft member. Eccentric cams are fixed to both end regions that are not located in the roller part, so as to rotate integrally with the penetrating shaft member. A position regulating cam and an abutting roller form a gap between the intermediate transfer belt and the secondary transfer roller immediately before a transfer sheet enters a transfer nip part. While the gap is formed, current flows between the intermediate transfer belt and the secondary transfer roller via the position regulating cam and the abutting roller.

摘要翻译： 二次转印辊包括：滚子部，其具有在旋转中心位置沿旋转轴线方向贯通的贯通孔，以及穿透辊部件的贯通孔的贯穿轴构件，并将辊部分在表面上旋转 的穿透轴构件。 偏心凸轮固定到不位于辊部分中的两个端部区域，以便与穿透轴构件一体旋转。 位置调节凸轮和邻接辊在转印纸进入转印辊隙部分之前形成中间转印带和二次转印辊之间的间隙。 当形成间隙时，电流经由位置调节凸轮和邻接辊在中间转印带和二次转印辊之间流动。

公开(公告)号：US10281848B2

公开(公告)日：2019-05-07

申请号：US15427735

申请日：2017-02-08

申请人： Yuuji Wada ,  Naoto Kochi ,  Hiroki Nakamatsu ,  Kazuki Yogosawa ,  Takahiro Suzuki ,  Shinya Tanaka ,  Kenji Sugiura ,  Naohiro Kumagai ,  Seiichi Kogure ,  Junpei Fujita ,  Hirokazu Ishii ,  Takehide Mizutani ,  Atsushi Nagata ,  Keigo Nakamura

发明人： Yuuji Wada ,  Naoto Kochi ,  Hiroki Nakamatsu ,  Kazuki Yogosawa ,  Takahiro Suzuki ,  Shinya Tanaka ,  Kenji Sugiura ,  Naohiro Kumagai ,  Seiichi Kogure ,  Junpei Fujita ,  Hirokazu Ishii ,  Takehide Mizutani ,  Atsushi Nagata ,  Keigo Nakamura

IPC分类号： G03G15/16 ,  G03G15/00

摘要： An improved image forming apparatus includes an image bearer, a nip forming member, a transfer power source, and a controller. The controller switches a transfer mode between a first mode to transfer the toner image onto a first type sheet having a surface smoothness higher than a surface smoothness of a second type sheet and a second mode to transfer the toner image onto the second type sheet. The controller controls the transfer power source to output the transfer bias having an opposite-peak duty of greater than or equal to 50% that is a duty on the side of the opposite-peak value in the first mode. The controller controls the transfer power source to output the transfer bias having an opposite-peak duty of less than 50%, which is different from the opposite-peak duty of the first mode, in the second mode.

公开(公告)号：US10101690B2

公开(公告)日：2018-10-16

申请号：US15596365

申请日：2017-05-16

申请人： Kenji Sugiura ,  Naohiro Kumagai ,  Seiichi Kogure ,  Junpei Fujita ,  Kazuki Yogosawa ,  Yuuji Wada ,  Jyunya Sakuraba

发明人： Kenji Sugiura ,  Naohiro Kumagai ,  Seiichi Kogure ,  Junpei Fujita ,  Kazuki Yogosawa ,  Yuuji Wada ,  Jyunya Sakuraba

IPC分类号： G03G15/16

摘要： An image forming apparatus includes an image bearer including a first image portion to bear a first toner image, a second image portion to bear a second toner image, and a non-image portion to bear an adjustment pattern. A transferor forms a transfer nip with the image bearer. A controller controls the power source to output an image bias as a transfer bias to transfer the first toner image and the second toner image onto a first recording medium and a second recording medium, respectively, in the transfer nip when the first image portion and the second image portion pass through the transfer nip and output a non-image bias as the transfer bias when the non-image portion passes through the transfer nip. The controller performs a constant current control on the image bias and performs a constant voltage control when the image bias switches to the non-image bias.

公开(公告)号：US20180157209A1

公开(公告)日：2018-06-07

申请号：US15831566

申请日：2017-12-05

申请人： Junpei Fujita ,  Katsuhito Haruno ,  Atsushi Nakamoto ,  Masakazu Imai ,  Osamu Ichihashi ,  Takehide Mizutani ,  Naoto Kochi

发明人： Junpei Fujita ,  Katsuhito Haruno ,  Atsushi Nakamoto ,  Masakazu Imai ,  Osamu Ichihashi ,  Takehide Mizutani ,  Naoto Kochi

IPC分类号： G03G15/16

CPC分类号： G03G21/0094 ,  G03G15/161 ,  G03G15/1675 ,  G03G15/5008 ,  G03G21/0011 ,  G03G2215/00059

摘要： A transfer device includes an image bearer, a rotatable body, a solid lubricant assembly, and a guide. An image bearer bears an image. The rotatable body forms a transfer nip with the image bearer to rotate in contact with a recording medium. An image on the image bearer is transferred onto the recording medium at the transfer nip. The solid lubricant assembly includes a solid lubricant and extends in a longitudinal direction of the rotatable body. The solid lubricant assembly applies a solid lubricant to at least one of the rotatable body and the image bearer. The guide guides the recording medium and positions the solid lubricant assembly.

公开(公告)号：US20180059583A1

公开(公告)日：2018-03-01

申请号：US15690484

申请日：2017-08-30

申请人： Naohiro KUMAGAI ,  Seiichi Kogure ,  Junpei Fujita ,  Kazuki Yogosawa ,  Kenji Sugiura ,  Yuugi Wada

发明人： Naohiro KUMAGAI ,  Seiichi Kogure ,  Junpei Fujita ,  Kazuki Yogosawa ,  Kenji Sugiura ,  Yuugi Wada

IPC分类号： G03G15/00 ,  G03G15/16

CPC分类号： G03G15/1605 ,  G03G15/1615

摘要： An image forming apparatus includes an image bearer, an intermediate transferor, a secondary transferor, a plurality of rotators including a secondary driving rotator, and a detector. The image bearer bears a detection image. The detection image is transferred from the image bearer to the intermediate transferor at a primary transfer position. The secondary transferor is looped around the plurality of rotators and disposed in contact with the intermediate transferor at a secondary transfer position where the detection image is transferred from the intermediate transferor to the secondary transferor. The secondary driving rotator drives the secondary transferor. The detector detects the detection image on the secondary transferor at a detection position. With this configuration, a distance from the secondary transfer position to the detection position on the secondary transferor is an integral multiple of a circumference of the secondary driving rotator.