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公开(公告)号：US10191415B2
公开(公告)日：2019-01-29
申请号：US15801858
申请日：2017-11-02
Applicant: Takehide Mizutani , Naoto Kochi , Katsuhito Haruno , Atsushi Nakamoto , Masakazu Imai , Osamu Ichihashi
Inventor： Takehide Mizutani , Naoto Kochi , Katsuhito Haruno , Atsushi Nakamoto , Masakazu Imai , Osamu Ichihashi
Abstract: An image forming apparatus includes a developing device, an image bearer, a transfer rotator, a blade contacting a surface of the transfer rotator, and a controller to control the developing device, the image bearer, and the transfer rotator. A first toner pattern image is formed on the image bearer, transferred onto the transfer rotator, and passed past the blade at least twice together with rotation of the transfer rotator in at start-up of the image forming apparatus. A second toner pattern image is formed on the image bearer after the start-up and during passage of a non-image area in which toner images are not formed. A range of the first toner pattern image is wider than a range of the second toner pattern image in a width direction perpendicular to a direction of travel of the image bearer.
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公开(公告)号：US09274461B2
公开(公告)日：2016-03-01
申请号：US14254192
申请日：2014-04-16
Applicant: Tsutomu Kato , Hirokazu Ishii , Takehide Mizutani , Shinya Tanaka , Yasufumi Takahashi , Osamu Ichihashi , Yuji Kato
Inventor： Tsutomu Kato , Hirokazu Ishii , Takehide Mizutani , Shinya Tanaka , Yasufumi Takahashi , Osamu Ichihashi , Yuji Kato
IPC: G03G15/16
CPC classification number: G03G15/1675
Abstract: A transfer device includes a transfer member and a bias applicator. The transfer member contacts a surface, on which a toner image is borne, of an image bearing body, to form a transfer nip. The bias applicator applies a DC voltage and an AC voltage as transfer bias to transfer the toner image on the image bearing body to a recording sheet in the transfer nip. The bias applicator applies a DC voltage having a same polarity as the DC voltage of the transfer bias and an AC voltage having an amplitude smaller than the AC voltage of the transfer bias or applies the DC voltage having the same polarity as the DC voltage of the transfer bias without applying an AC voltage, when an inter-sheet area that exists on the image bearing body passes through the transfer nip during a continuous image formation period.
Abstract translation: 转印装置包括转印部件和偏置施加器。 转印构件与图像承载体的承载有调色剂图像的表面接触，以形成转印辊隙。 偏压施加器施加直流电压和交流电压作为转印偏压，以将图像承载体上的调色剂图像转印到转印压区中的记录纸上。 偏压施加器施加具有与转印偏压的DC电压相同极性的DC电压和具有小于转印偏压的AC电压的幅度的AC电压，或施加具有与所述转印偏压的DC电压相同极性的DC电压 当连续图像形成期间存在于图像承载体上的片间区域通过转印辊隙时，不施加交流电压的转印偏压。
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公开(公告)号：US08831466B2
公开(公告)日：2014-09-09
申请号：US13369805
申请日：2012-02-09
Applicant: Junpei Fujita , Ryuuichi Mimbu , Kenji Sengoku , Osamu Ichihashi
Inventor： Junpei Fujita , Ryuuichi Mimbu , Kenji Sengoku , Osamu Ichihashi
CPC classification number: G03G15/161 , G03G15/0189 , G03G15/162 , G03G2215/0129
Abstract: An image forming apparatus includes a plurality of image bearing members to bear a toner image on a surface thereof, a transfer device including a plurality of transfer members and an endless belt formed into a loop and entrained around the transfer members, to transfer the toner images from the image bearing members onto the surface of the belt so that the toner images are superimposed one atop the other on the belt to form a composite toner image, a plurality of cleaning devices including a cleaning blade to remove residual toner remaining on the image bearing members after transfer of the toner images onto the belt, and a plurality of heaters disposed inside the loop formed by the belt. Each of the heaters is disposed between adjacent image bearing members. The belt is interposed between the plurality of heaters and the plurality of image bearing members.
Abstract translation: 图像形成装置包括：多个图像承载部件，用于在其表面上承载调色剂图像;传送装置，包括多个传送部件和环形带，其形成为环状并夹带在传送部件周围，以便传送调色剂图像 从图像承载部件移动到带的表面上，使得调色剂图像彼此叠加在带上以形成复合调色剂图像，多个清洁装置包括清洁刮板以除去保留在图像承载上的残留调色剂 将调色剂图像转印到带上的部件，以及设置在由带形成的环内的多个加热器。 每个加热器设置在相邻的图像承载部件之间。 皮带介于多个加热器和多个图像承载部件之间。
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公开(公告)号：US08737865B2
公开(公告)日：2014-05-27
申请号：US13957993
申请日：2013-08-02
Applicant: Osamu Ichihashi , Ryuuichi Mimbu , Kenji Sengoku , Junpei Fujita
Inventor： Osamu Ichihashi , Ryuuichi Mimbu , Kenji Sengoku , Junpei Fujita
IPC: G03G15/00
CPC classification number: G03G15/1665 , G03G15/167 , G03G2215/0129 , G03G2215/0193
Abstract: 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.
Abstract translation: 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。
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公开(公告)号：US20130223901A1
公开(公告)日：2013-08-29
申请号：US13861110
申请日：2013-04-11
Applicant: Ryuichi MINBE , Katsuya Kawagoe , Kenji Sengoku , Junpei Fujita , Osamu Ichihashi
Inventor： Ryuichi MINBE , Katsuya Kawagoe , Kenji Sengoku , Junpei Fujita , Osamu Ichihashi
IPC: G03G15/16
CPC classification number: G03G15/163 , G03G5/082 , G03G15/161 , G03G15/2032 , G03G2215/00738
Abstract: 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.
Abstract translation: 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。
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Patent Agency Ranking
公开(公告)号：US20120121293A1
公开(公告)日：2012-05-17
申请号：US13293562
申请日：2011-11-10
Applicant: Ryuuichi Mimbu , Osamu Ichihashi
Inventor： Ryuuichi Mimbu , Osamu Ichihashi
IPC: G03G15/16
CPC classification number: G03G15/161 , G03G15/1605 , G03G21/1671 , G03G21/168 , G03G2215/0129 , G03G2215/0193
Abstract: A transfer device includes a moving device to move a contact surface of an opposing member toward and away from an image bearing surface of an image bearing member. The moving device includes a cam and a cam driving device to rotate the cam. When the cam is at a first position, the image bearing surface and the contact surface are separated. When the cam is at a second position, the image bearing surface and the contact surface contact each other. After a recording medium enters a transfer nip between the image bearing surface and the contact surface, the cam is at the second position, and when the recording medium exits the transfer nip a timing at which the cam starts to rotate from the second position to the first position changes depending on a thickness of the recording medium, to reduce pressure in the transfer nip.
Abstract translation: 传送装置包括移动装置，用于使相对构件的接触表面朝向和远离图像承载部件的图像承载表面移动。 移动装置包括凸轮和用于旋转凸轮的凸轮驱动装置。 当凸轮处于第一位置时，图像承载表面和接触表面被分离。 当凸轮处于第二位置时，图像承载面和接触面相互接触。 在记录介质进入图像承载表面和接触表面之间的转印辊隙之后，凸轮处于第二位置，并且当记录介质离开转印辊隙时，凸轮开始从第二位置旋转到 第一位置根据记录介质的厚度而改变，以减小转印辊隙中的压力。
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公开(公告)号：US3964076A
公开(公告)日：1976-06-15
申请号：US487850
申请日：1974-07-11
Applicant: Osamu Ichihashi , Sadao Muramatsu
Inventor： Osamu Ichihashi , Sadao Muramatsu
Abstract: In a shutter speed display device for use in combination with an electric shutter operating circuit of a photographic camera wherein an electric signal produced by a photosensitive element and corresponding to the brightness of an object is used to operate the shutter of the camera, there are provided an improved electric shutter operating circuit which comprises a first amplifier for amplifying the electric signal, a second amplifier comprising a field effect transistor connected to amplify the output from the first amplifier, a first impedance element connected between one terminal of the photosensitive element and the negative pole of a DC source, a second impedance element connected in parallel with the series circuit including the photosensitive element and the first impedance element, and a transistor connected to the output of the second amplifier for feeding back the output to the input of the first amplifier; and shutter speed display means determined primarily by the ratio of the value of the resistance of resistor 9 to resistor 10. The shutter speed display means preferably comprises comparator means connected to the source of the second, field effect transistor amplifier and to a reference voltage source so as to respond to a signal having the same phase as that of the input to the second, field effect transistor amplifier and the same magnitude as a selected reference voltage, and means responsive to the output from the comparator means for displaying a predetermined shutter speed.
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公开(公告)号：US20180157209A1
公开(公告)日：2018-06-07
申请号：US15831566
申请日：2017-12-05
Applicant: Junpei Fujita , Katsuhito Haruno , Atsushi Nakamoto , Masakazu Imai , Osamu Ichihashi , Takehide Mizutani , Naoto Kochi
Inventor： Junpei Fujita , Katsuhito Haruno , Atsushi Nakamoto , Masakazu Imai , Osamu Ichihashi , Takehide Mizutani , Naoto Kochi
IPC: G03G15/16
CPC classification number: G03G21/0094 , G03G15/161 , G03G15/1675 , G03G15/5008 , G03G21/0011 , G03G2215/00059
Abstract: 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.
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公开(公告)号：US20180143570A1
公开(公告)日：2018-05-24
申请号：US15801858
申请日：2017-11-02
Applicant: Takehide MIZUTANI , Naoto Kochi , Katsuhito Haruno , Atsushi Nakamoto , Masakazu Imai , Osamu Ichihashi
Inventor： Takehide MIZUTANI , Naoto Kochi , Katsuhito Haruno , Atsushi Nakamoto , Masakazu Imai , Osamu Ichihashi
IPC: G03G15/00
CPC classification number: G03G15/161 , G03G15/50 , G03G15/556 , G03G2215/1661
Abstract: An image forming apparatus includes a developing device, an image bearer, a transfer rotator, a blade contacting a surface of the transfer rotator, and a controller to control the developing device, the image bearer, and the transfer rotator. A first toner pattern image is formed on the image bearer, transferred onto the transfer rotator, and passed past the blade at least twice together with rotation of the transfer rotator in at start-up of the image forming apparatus. A second toner pattern image is formed on the image bearer after the start-up and during passage of a non-image area in which toner images are not formed. A range of the first toner pattern image is wider than a range of the second toner pattern image in a width direction perpendicular to a direction of travel of the image bearer.
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公开(公告)号：US09778603B2
公开(公告)日：2017-10-03
申请号：US15191463
申请日：2016-06-23
Applicant: Tsutomu Kato , Masakazu Imai , Osamu Ichihashi , Katsuhito Haruno , Takahiro Konishi
Inventor： Tsutomu Kato , Masakazu Imai , Osamu Ichihashi , Katsuhito Haruno , Takahiro Konishi
IPC: G03G15/16
CPC classification number: G03G15/1665 , G03G15/1605 , G03G2215/00447 , G03G2215/00738 , G03G2215/00751 , G03G2215/0129
Abstract: A transfer device includes an image bearer and a transfer rotator. The transfer device further includes an adjuster including a rotatable cam and an opposed member opposed to the cam. The cam alternately contacts and separates the transfer rotator against and from the image bearer, having a continuous sloped surface with a plurality of positions, each position to contact the opposed member to obtain a different amount of separation between the image bearer and the transfer rotator. The transfer device further includes a controller to control the adjuster to adjust the amount of separation between the transfer rotator and the image bearer according to thickness or type of the recording medium when the recording medium starts to enter the transfer nip.
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