Patents by Inventor Lianjun Wu
Lianjun Wu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240111245Abstract: A processing cartridge can be detachably installed in an electronic image forming device, where a protrusion capable of extending and retracting along a vertical direction is disposed inside the electronic image forming device. The processing cartridge includes a toner container and a waste toner container; and a movable element disposed at the lower side of the processing cartridge. The processing cartridge further includes a detachment preventing portion; the movable element is disposed with an abutting portion; and the abutting portion is capable of being abutted against the detachment preventing portion to prevent the movable element being disengaged. The processing cartridge further includes an elastic element; and the elastic element is configured to move the movable element toward the lower side of the processing cartridge.Type: ApplicationFiled: December 14, 2023Publication date: April 4, 2024Inventors: Shuchun DAI, Geming DING, Likun ZENG, Lianjun WU, Qin LUO, Kun LI
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Publication number: 20230350341Abstract: The present disclosure provides a process cartridge. The process cartridge includes a cartridge body; a photosensitive drum, rotatably disposed at the cartridge body; a developing roller, rotatably disposed at the cartridge body; a force receiving unit, where the force receiving unit is disposed at an end of the cartridge body and configured to be engaged with a driving unit of an electronic image-forming apparatus to receive a driving force outputted by the driving unit; and a pressing part, where the pressing part is fixedly disposed at the cartridge body and at a same end of the cartridge body as the force receiving unit, and configured to press the driving unit to make the driving unit to be coaxially-aligned; and a distance between the pressing part and an axis of the photosensitive drum is unchanged in displacement during an engagement process of the force receiving unit and the driving unit.Type: ApplicationFiled: May 12, 2023Publication date: November 2, 2023Inventors: Qin LUO, Likun ZENG, Geming DING, Jianxin CAO, Shuchun DAI, Zhizheng JIA, Lianjun WU, Wenjun YU, Weichen LIU, Qijie LIANG, Hailong MA, Weizhi ZHANG, Qingfei PENG
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Publication number: 20220350291Abstract: A processing cartridge, detachably installed in an electronic image forming device that includes a first pushing element and a second pushing element. The processing cartridge includes a developing roller and a first housing supporting the developing roller; a photo-sensitive drum and a second housing supporting the photo-sensitive drum; a first force receiving element, configured to be abutted against the second pushing element to separate the developing roller from the photo-sensitive drum; and a second force receiving element, configured to be abutted against the first pushing element for enabling the second force receiving element to push the first force receiving element to rotate about an axis. A rotation axis of the first force receiving portion is substantially perpendicular to a direction in which the processing cartridge is installed into or taken out of the electronic image forming device.Type: ApplicationFiled: July 18, 2022Publication date: November 3, 2022Inventors: Shuchun DAI, Geming DING, Likun ZENG, Lianjun WU, Qin LUO, Kun LI
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Patent number: 11256210Abstract: A processing cartridge is provided. The processing cartridge can be detachably mounted in an electronic imaging device including a driving component for transmitting rotating force. The processing cartridge includes a housing and a force receiving element. The force receiving element including force receiving parts is disposed at one side of the housing and is rotatably supported by the housing. The force receiving parts are disposed at an end portion of the force receiving element along a circumferential direction of the force receiving element and protrude in a direction of a rotation axis of the force receiving element. When the processing cartridge is mounted in the electronic imaging device along a predetermined mounting direction, the force receiving parts and the driving component are engaged with each other to transmit the force.Type: GrantFiled: September 4, 2020Date of Patent: February 22, 2022Assignee: NINESTAR CORPORATIONInventors: Qin Luo, Gerning Ding, Likun Zeng, Hui Cao, Miaoling Yang, Lianjun Wu, Shuchun Dai
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Publication number: 20210216037Abstract: A processing cartridge, detachably installed in an electronic image forming device that includes a first force applying element, is provided in the present disclosure. The processing cartridge includes a developing roller and a first housing supporting the developing roller; a photo-sensitive drum and a second housing supporting the photo-sensitive drum; a first force receiving element, contactable with the first force applying element; and a first elastic element, configured to maintain the first force receiving element in the first position state. The first force receiving element has a plurality of position states including a first position state and a second position state; when being in the first position state, the first force receiving element protrudes relative to the first housing; and when being in the second position state, the first force receiving element is closer to the first housing compared with the first position state.Type: ApplicationFiled: March 16, 2021Publication date: July 15, 2021Inventors: Shuchun DAI, Geming DING, Likun ZENG, Lianjun WU, Qin LUO, Kun LI
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Publication number: 20200401077Abstract: A processing cartridge is provided. The processing cartridge can be detachably mounted in an electronic imaging device including a driving component for transmitting rotating force. The processing cartridge includes a housing and a force receiving element. The force receiving element including force receiving parts is disposed at one side of the housing and is rotatably supported by the housing. The force receiving parts are disposed at an end portion of the force receiving element along a circumferential direction of the force receiving element and protrude in a direction of a rotation axis of the force receiving element. When the processing cartridge is mounted in the electronic imaging device along a predetermined mounting direction, the force receiving parts and the driving component are engaged with each other to transmit the force.Type: ApplicationFiled: September 4, 2020Publication date: December 24, 2020Inventors: Qin LUO, Geming DING, Likun ZENG, Hui CAO, Miaoling YANG, Lianjun WU, Shuchun DAI
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Patent number: 9052687Abstract: An image forming device, a process cartridge engageable with the same and a method for firmly positioning the process cartridge in the image forming device. The image forming device includes a main frame and a main frame driving gear, wherein a guide rail is respectively arranged on left and right sides of the inside of the main frame. An installation section is arranged at a tail end of each guide rail and the installation section and guide rail respectively define a reverse hook-shape. Lugs formed at both ends of a housing of the process cartridge are driven by a radial component of driving force of the image forming device to the process cartridge to closely bear against walls of installation sections at the tail ends of the guide rails when the process cartridge is in an operating state in the image forming device.Type: GrantFiled: July 19, 2011Date of Patent: June 9, 2015Assignee: Zhuhai Seine Technology LimitedInventor: Lianjun Wu
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Patent number: 8670689Abstract: The present invention relates to a processing cartridge, comprising a developing unit and a photosensitive unit, of which the latter consists of a photosensitive member and a developer chamber and has a developer outlet connecting the chamber and a sealing cap matching the developer outlet and used to seal the said outlet. Based on the said technical proposal, the photosensitive unit is designed with a developer outlet connecting the chamber and with a sealing cap matching the developer outlet and used to seal the said outlet, so, when the photosensitive unit becomes full with developer, the sealing cap can be opened to remove the developer in the photosensitive unit, which facilitates the cleaning without affecting the normal operation of the processing cartridge.Type: GrantFiled: March 16, 2010Date of Patent: March 11, 2014Assignee: Zhuhai Seine Technology LimitedInventors: Kui Xie, Lianjun Wu, Qingfei Peng
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Patent number: 8655232Abstract: The invention discloses a processing cartridge, which includes a powder tube, a sliding member and a mechanism for holding the sliding member, wherein the powder tube is used for receiving toner and the sliding member is capable of freely sliding in the powder tube. The mechanism for holding the sliding member is driven to close a powder outlet under the non-use state and a powder outlet portion is arranged on the powder tube. The powder outlet is arranged on the powder outlet portion and the sliding member closes the powder outlet under the action of the mechanism for holding the sliding member under the non-use state, and moves under the action of an external force to open the powder outlet under the use state. An internal member provided with an internal powder feeding opening is also arranged inside the powder outlet portion.Type: GrantFiled: May 14, 2010Date of Patent: February 18, 2014Assignee: Zhuhai Seine Technology LimitedInventors: Lianjun Wu, Jinlian Liu, Qingfei Peng
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Patent number: 8626024Abstract: A method for controlling a distance between a photosensitive member and a developing member in an integral or separated toner cartridge. The toner cartridge is provided with an elastic member for providing an elastic force to the developing member or to the photosensitive member, so as to force the developing member to move towards the photosensitive member, or to force the photosensitive member to move towards the developing member. A production accuracy requirement of the toner cartridge is reduced by the elasticity of the elastic member. Also a device for controlling a distance between a photosensitive member and a developing member in a toner cartridge. By using the method and the device thereof, the requirement of the manufacturing accuracy of a toner cartridge can be reduced, and the negative impact of the accuracy bias caused by abrasion can be reduced, so, the product cost is saved, and the service life of the product is increased.Type: GrantFiled: August 15, 2009Date of Patent: January 7, 2014Assignee: Zhuhai Seine Technology LimitedInventors: Lianjun Wu, Qingfei Peng, Jianxin Cao
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Patent number: 8620196Abstract: The invention relates to a toner cartridge with a locking mechanism, including a body provided with a top cover and used for receiving a developer, wherein the locking and unlocking mechanism used for locking the toner cartridge into an image forming apparatus is arranged on the body. The locking mechanism includes a handle hinged with the top cover, a gear fixedly connected with the handle, a locking lever capable of reciprocating and a torsion spring used for realizing the automatic reset of the handle. A rack engaged with the gear is arranged on the locking lever. Moreover, the handle is driven to be close to the top cover under the action of a torque force of the torsion spring under the locking state, and the gear is engaged with the rack to drive the locking lever to be extended out of the top cover so as to lock the toner cartridge.Type: GrantFiled: March 29, 2010Date of Patent: December 31, 2013Assignee: Zhuhai Seine Technology LimitedInventors: Lianjun Wu, Geming Ding, Qingfei Peng
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Publication number: 20130177333Abstract: The invention provides an image forming device, a process cartridge engaged with the same and a method for firmly positioning the process cartridge in the image forming device. The image forming device, comprising a main frame and a main frame driving gear, wherein a guide rail is respectively arranged on the left and right sides of the inside of said main frame; an installation section is arranged at the tail end of each guide rail; and said installation section and said guide rail approximately form a barb. Lugs formed at both ends of a housing of the process cartridge are driven by a radial component of driving force of the image forming device to the process cartridge to always closely lean against the walls of the installation sections at the tail ends of the guide rails when the process cartridge is in the operating state in the image forming device.Type: ApplicationFiled: July 19, 2011Publication date: July 11, 2013Applicant: Zhuhai Seine Technology LimitedInventor: Lianjun Wu
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Publication number: 20120087699Abstract: The invention relates to a toner cartridge with a locking mechanism, including a body provided with a top cover and used for receiving a developer, wherein the locking and unlocking mechanism used for locking the toner cartridge into an image forming apparatus is arranged on the body. The locking mechanism includes a handle hinged with the top cover, a gear fixedly connected with the handle, a locking lever capable of reciprocating and a torsion spring used for realizing the automatic reset of the handle. A rack engaged with the gear is arranged on the locking lever. Moreover, the handle is driven to be close to the top cover under the action of a torque force of the torsion spring under the locking state, and the gear is engaged with the rack to drive the locking lever to be extended out of the top cover so as to lock the toner cartridge.Type: ApplicationFiled: March 29, 2010Publication date: April 12, 2012Applicant: ZHUHAI SEINE TECHNOLOGY LIMITED.Inventors: Lianjun Wu, Geming Ding, Qingfei Peng
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Publication number: 20120070190Abstract: The invention discloses a processing cartridge, which includes a powder tube, a sliding member and a mechanism for holding the sliding member, wherein the powder tube is used for receiving toner and the sliding member is capable of freely sliding in the powder tube. The mechanism for holding the sliding member is driven to close a powder outlet under the non-use state and a powder outlet portion is arranged on the powder tube. The powder outlet is arranged on the powder outlet portion and the sliding member closes the powder outlet under the action of the mechanism for holding the sliding member under the non-use state, and moves under the action of an external force to open the powder outlet under the use state. An internal member provided with an internal powder feeding opening is also arranged inside the powder outlet portion.Type: ApplicationFiled: May 14, 2010Publication date: March 22, 2012Inventors: Lianjun Wu, Jinlian Liu, Qingfei Peng
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Patent number: 8121516Abstract: A processing cartridge includes at least a photosensitive drum, a developing roller, and a casing containing the photosensitive drum and the developing roller. The photosensitive drum is fixed to the casing to form an electrostatic latent image, and the developing roller develops the electrostatic latent image on the photosensitive drum. The processing cartridge also includes a handle, and the handle is retractably fixed to the casing, which has an extending status and a shrinking status opposite to the extending status.Type: GrantFiled: March 27, 2009Date of Patent: February 21, 2012Assignee: Zhuhai Seine Technology LimitedInventors: Lianjun Wu, Geming Ding
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Publication number: 20110229190Abstract: The present invention relates to a processing cartridge, comprising a developing unit and a photosensitive unit, of which the latter consists of a photosensitive member and a developer chamber and has a developer outlet connecting the chamber and a sealing cap matching the developer outlet and used to seal the said outlet. Based on the said technical proposal, the photosensitive unit is designed with a developer outlet connecting the chamber and with a sealing cap matching the developer outlet and used to seal the said outlet, so, when the photosensitive unit becomes full with developer, the sealing cap can be opened to remove the developer in the photosensitive unit, which facilitates the cleaning without affecting the normal operation of the processing cartridge.Type: ApplicationFiled: March 16, 2010Publication date: September 22, 2011Inventors: Kui XIE, Lianjun Wu, Qingfei Peng
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Publication number: 20100247139Abstract: The present invention provides a processing cartridge; the processing cartridge comprises at least a photosensitive drum, a developing roller, a casing containing the photosensitive drum and the developing roller; the photosensitive drum is fixed to the casing to form an electrostatic latent image, and the developing roller develops the electrostatic latent image on the photosensitive drum; the processing cartridge also comprises a handle, and the handle is retractably fixed to the protective casing, which has an extending status and a shrinking status opposite to the extending status.Type: ApplicationFiled: March 27, 2009Publication date: September 30, 2010Inventors: Lianjun WU, Geming Ding
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Publication number: 20100040392Abstract: The present invention discloses a method for controlling the distance between the photosensitive member and the developing member in a toner cartridge. In the present invention, the toner cartridge is provided with an elastic member for providing an elastic force to the developing member or to the photosensitive member, so as to force the developing member to move towards the photosensitive member, or to force the photosensitive member to move towards the developing member; the production accuracy requirement of the toner cartridge is reduced by the elasticity of the elastic member. The present invention further discloses a device for controlling the distance between the photosensitive member and the developing member in a toner cartridge.Type: ApplicationFiled: August 15, 2009Publication date: February 18, 2010Inventors: Lianjun Wu, Qingfei Peng, Jianxin Cao
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Publication number: 20090117408Abstract: To provide a perpendicular magnetic recording disk having a film structure that improves overwrite characteristics (O/W) while maintaining a coercive force (Hc) high enough not to affect heat fluctuation resistance, and a manufacturing method thereof. A magnetic disk for use in perpendicular magnetic recording, having at least an underlayer, a first magnetic recording layer, and a second magnetic recording layer on a substrate in the order named, characterized in that the first magnetic recording layer and the second magnetic recording layer are each a ferromagnetic layer of a granular structure containing a nonmagnetic substance forming grain boundary portions between crystal grains containing at least Co (cobalt) and, given that the content of the nonmagnetic substance in the first magnetic recording layer is A mol % and the content of the nonmagnetic substance in the second magnetic recording layer is B mol %, A<B.Type: ApplicationFiled: March 31, 2007Publication date: May 7, 2009Applicants: HOYA CORPORATION, HOYA MAGNETICS SINGAPORE PTE. LTD.Inventors: Teiichiro Umezawa, Lianjun Wu, Yoshiaki Sonobe, Chikara Takasu, Takahiro Onoue