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公开(公告)号：US10444660B2
公开(公告)日：2019-10-15
申请号：US16155940
申请日：2018-10-10
发明人： Kazunari Hagiwara , Takaaki Shinkawa , Koji An , Takashi Mukai , Takuya Kitamura
摘要： A developing apparatus includes a developer carrying member, a developer container, and a regulating member to regulate the thickness of the developer. The regulating member includes a support member having one end fixed to the developer container and the other end free, with the support member extending in a direction opposite to the rotating direction of the developer carrying member, and a contact member to be fixed to the other end of the support member and to contact the developer carrying member. The contact member includes a contact curved surface along a peripheral surface of the developer carrying member, and an opposite surface to face the developer carrying member. The contact pressure of the contact curved surface applied to the developer carrying member decreases as a location on the developer carrying member approaches a downstream side in the rotating direction.
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公开(公告)号：US09703232B2
公开(公告)日：2017-07-11
申请号：US15019192
申请日：2016-02-09
CPC分类号： G03G15/065 , G03G15/0822 , G03G21/0011 , G03G21/0094
摘要： An image forming apparatus includes image forming portions each including an image bearing member, a charging portion, an exposure portion, a developing portion including a developing member, and a cleaning member; a contact-and-separation portion; a voltage source; and a control means. An operation is executed in a contact state of the developing member with the image bearing member at the image forming portion where the image is formed, in a separated state of the developing member from the image bearing member at the image forming portion where the image is not formed and in a state in which the image bearing members of the image forming portions where the image is formed and is not formed are driven. When the operation is continuously executed, the control means executes a contacting operation at the image forming portion where the image is not formed.
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公开(公告)号：US20190113862A1
公开(公告)日：2019-04-18
申请号：US16155940
申请日：2018-10-10
发明人： Kazunari Hagiwara , Takaaki Shinkawa , Koji An , Takashi Mukai , Takuya Kitamura
CPC分类号： G03G15/0812 , G03G21/0011 , G03G21/0017 , G03G21/0029 , G03G21/1814 , G03G2215/0805 , G03G2221/0089
摘要： Provided is a developing apparatus including a developer carrying member, a developer container, and a regulating member to regulate the thickness of the developer. The regulating member includes a support member such that one end is fixed to the developer container, the other end is a free end, and the support member extends in a direction opposite to the rotating direction of the developer carrying member, and a contact member to be fixed to the other end of the support member and to contact the developer carrying member. The contact member includes a contact curved surface along a peripheral surface of the developer carrying member, and an opposite surface to face the developer carrying member. The contact pressure of the contact curved surface applied to the developer carrying member decreases as a location on the developer carrying member approaches downstream side in the rotating direction.
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公开(公告)号：US20180032000A1
公开(公告)日：2018-02-01
申请号：US15658621
申请日：2017-07-25
发明人： Takaaki Shinkawa , Kazuhiro Okubo , Jun Miura , Yoshinobu Ogawa , Ryo Sugiyama , Mitsuru Okuda
IPC分类号： G03G15/08
CPC分类号： G03G15/0812
摘要： The developing apparatus includes a developer carrying member carrying a developer on the surface thereof, a developing frame member rotatably supporting the developer carrying member, and accommodating the developer, and a regulating member fixed to the developing frame member to regulate the developer carried on the developer carrying member, the regulating member has a projecting part, having an abutting part arranged to abut the developer carrying member, and an opposing surface, arranged to face the developer carrying member connected to the projecting part and including an end disposed as a free end, positioned on the downstream side in the rotational direction of the developer carrying member from the projecting part, and the opposing surface being a surface having no point of reverse curve in which the distance between the opposing surface and the developer carrying member is constant or decreases with distance from the projecting part.
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公开(公告)号：US20160231665A1
公开(公告)日：2016-08-11
申请号：US15019192
申请日：2016-02-09
IPC分类号： G03G15/08
CPC分类号： G03G15/065 , G03G15/0822 , G03G21/0011 , G03G21/0094
摘要： An image forming apparatus includes image forming portions each including an image bearing member, a charging portion, an exposure portion, a developing portion including a developing member, and a cleaning member; a contact-and-separation portion; a voltage source; and a control means. An operation is executed in a contact state of the developing member with the image bearing member at the image forming portion where the image is formed, in a separated state of the developing member from the image bearing member at the image forming portion where the image is not formed and in a state in which the image bearing members of the image forming portions where the image is formed and is not formed are driven. When the operation is continuously executed, the control means executes a contacting operation at the image forming portion where the image is not formed.
摘要翻译： 图像形成装置包括图像形成部分，每个图像形成部分包括图像承载部件，充电部分，曝光部分，包括显影部件的显影部分和清洁部件; 接触分离部分; 电压源; 和控制装置。 在图像形成部分的图像形成部分处的图像承载部件的显影部件的接触状态下，在图像形成部分处的显影部件与图像承载部件分离的状态下， 未形成，并且在形成图像并且未形成图像形成部的图像承载部件的状态下被驱动。 当连续执行操作时，控制装置在未形成图像的图像形成部分执行接触操作。
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公开(公告)号：US10078291B2
公开(公告)日：2018-09-18
申请号：US15658621
申请日：2017-07-25
发明人： Takaaki Shinkawa , Kazuhiro Okubo , Jun Miura , Yoshinobu Ogawa , Ryo Sugiyama , Mitsuru Okuda
IPC分类号： G03G15/08
CPC分类号： G03G15/0812
摘要： A developing apparatus includes a developer carrying member, a developing frame member to rotatably supporting the developer carrying member, and a regulating member provided on the developing frame member and regulating developer carried on the developer carrying member. The regulating member includes a projecting part projected towards the developer carrying member and having an abutting part that abuts the developer carrying member, and an opposing surface facing the developer carrying member. The opposing surface is positioned on an upstream side of the projecting part and arranged to connect the projecting part with a distal end of the regulating member at a free end side of the regulating member. In addition, the opposing surface is a surface having no point of reverse curve, and the distance between the opposing surface and the developer carrying member is constant or decreasing with distance from the projecting part.
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公开(公告)号：US09897942B2
公开(公告)日：2018-02-20
申请号：US15067659
申请日：2016-03-11
CPC分类号： G03G15/1605 , G03G15/0136 , G03G15/1675
摘要： An image forming apparatus is operable in a mode of forming an image using only a part of image forming stations. In the mode, a developing device contacts an image bearing member in the part of the image forming stations, and the developing device is spaced from the image bearing member in the rest of the image forming stations. The contact pressure between the image bearing member and a transferring device is made smaller in the rest than in the part. The image forming operation in the mode is executed while the image bearing members of the part and the rest are rotated. A controller is configured such that when the operation in the mode is continuously executed for a time period longer than a predetermined period, the contact pressure in the rest is made larger than the above-mentioned smaller contact pressure.
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公开(公告)号：US20160266523A1
公开(公告)日：2016-09-15
申请号：US15067659
申请日：2016-03-11
IPC分类号： G03G15/16
CPC分类号： G03G15/1605 , G03G15/0136 , G03G15/1675
摘要： An image forming apparatus operable in a mode of forming an image using only a part of image forming stations. In the mode, a developing device contacts an image bearing member in a part of the image forming stations, and the developing device is spaced from the image bearing member in the rest of the image forming stations. The contact pressure between the image bearing member and a transferring device is made smaller in the rest than in the part. The image forming operation in the mode is executed while the image bearing members of the part and the rest are rotated. A controller is configured such that when the operation in the mode is continuously executed for a time period longer than a predetermined period, the contact pressure in the rest is made larger than the above-mentioned smaller contact pressure.
摘要翻译： 一种图像形成装置，其以仅使用图像形成站的一部分形成图像的模式进行操作。 在该模式中，显影装置接触图像形成站的一部分中的图像承载部件，并且显影装置与图像形成站的其余部分中的图像承载部件间隔开。 图像承载部件和转印装置之间的接触压力在其余部分比在部件中更小。 当部件和其余部件的图像承载部件旋转时，执行模式中的图像形成操作。 控制器被构造成使得当模式中的操作在比预定时间段长的时间内连续执行时，其余的接触压力大于上述更小的接触压力。
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公开(公告)号：US11363158B2
公开(公告)日：2022-06-14
申请号：US16503665
申请日：2019-07-05
发明人： Taku Shinohara , Takaaki Shinkawa , Keita Hidaka
摘要： A multifunction apparatus that is capable of executing a scan job and another image process in parallel without lowering a reading speed of a scanner unit. A reading unit reads a document according to an execution instruction for a predetermined image process. An image processing unit applies the predetermined image process to image data obtained by the reading unit. A clock controller controls an image transfer clock for transferring the image data to the image processing unit from the reading unit. The clock controller sets a frequency of the image transfer clock to a predetermined frequency in a case where the predetermined image process is executed independently. And the clock controller sets the frequency of the image transfer clock to a frequency lower than the predetermined frequency in a case where the predetermined image process is executed in parallel with another image process that differs from the predetermined image process.
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公开(公告)号：US20190101847A1
公开(公告)日：2019-04-04
申请号：US16141800
申请日：2018-09-25
发明人： Koji An , Kazunari Hagiwara , Takaaki Shinkawa , Takashi Mukai , Takuya Kitamura
CPC分类号： G03G15/0812 , G03G21/1814
摘要： A regulating portion includes a first contact portion, a second contact portion, opposed surface portion, and a second opposed surface portion. When, in a plane orthogonal to the rotation axis direction of a developer bearing member, the fixed end and the free end of a supporting member are connected by an imaginary straight line, a contact position where the first contact portion contacts the developer bearing member is located on the downstream side, in the rotation direction of the developer bearing member, of a point of contact of a tangent line parallel to the imaginary straight line with the outer periphery of the developer bearing member.
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