Patents by Inventor Byeong-no Jeong
Byeong-no Jeong 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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Patent number: 9703233Abstract: An electrophotographic image forming apparatus may include an imaging cartridge and a toner cartridge that are detachably attached to a main body, a first optical sensor that is mounted in the imaging cartridge and detects a toner level in a development chamber, and a second optical sensor that is mounted in the toner cartridge and detects a toner level in the development chamber.Type: GrantFiled: December 2, 2016Date of Patent: July 11, 2017Assignee: S-PRINTING SOLUTION CO., LTD.Inventors: Seong-ho Jeong, Sang-jin Park, Byeong-no Jeong, Jong-won Han
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Publication number: 20170082947Abstract: An electrophotographic image forming apparatus may include an imaging cartridge and a toner cartridge that are detachably attached to a main body, a first optical sensor that is mounted in the imaging cartridge and detects a toner level in a development chamber, and a second optical sensor that is mounted in the toner cartridge and detects a toner level in the development chamber.Type: ApplicationFiled: December 2, 2016Publication date: March 23, 2017Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Seong-ho JEONG, Sang-jin PARK, Byeong-no JEONG, Jong-won HAN
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Patent number: 9541859Abstract: An electrophotographic image forming apparatus may include an imaging cartridge and a toner cartridge that are detachably attached to a main body, a first optical sensor that is mounted in the imaging cartridge and detects a toner level in a development chamber, and a second optical sensor that is mounted in the toner cartridge and detects a toner level in the development chamber.Type: GrantFiled: February 5, 2016Date of Patent: January 10, 2017Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Seong-ho Jeong, Sang-jin Park, Byeong-no Jeong, Jong-won Han
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Patent number: 9465350Abstract: A toner cartridge and an electrophotographic image forming apparatus are provided. The toner cartridge attachable to, or detachable from a main body of an image forming apparatus includes a toner containing unit, a waste toner containing unit that is disposed below the toner containing unit in a gravitational direction and comprises a waste toner inlet through which waste toner flows, a first waste toner transporting member that transports the waste toner from the waste toner inlet in a length direction of the waste toner containing unit, and a second waste toner transporting member that transports the waste toner that is transported in the length direction of the waste toner containing unit in a width direction of the waste toner containing unit to disperse the waste toner in an inner portion of the waste toner containing unit, wherein a rotational center of the second waste toner transporting member is lower than a rotational center of the first waste toner transporting member.Type: GrantFiled: March 16, 2015Date of Patent: October 11, 2016Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Ho-jin Jang, Dong-geun Lee, Byeong-no Jeong, Ji-won Moon, Seung-chan Park
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Patent number: 9383677Abstract: An image forming apparatus and a control method for the same, which ensure acquisition of a high-quality image by controlling physical-states of toner on a developer roller based on sensed variation in states of internal components of a developer cartridge, and which enable sensing and determination of the lifespan of the developer cartridge, is provided. The control method for the image forming apparatus includes applying a current detection bias to a developer roller blade of a developer cartridge, detecting the magnitude of current of the developer roller blade when the current detection bias is applied to the developer roller blade, and variably controlling a developer cartridge bias to be applied to the developer cartridge for image formation based on the detected magnitude of current of the developer roller blade, so as to allow a target magnitude of constant current to flow through the developer roller blade during image formation.Type: GrantFiled: October 28, 2013Date of Patent: July 5, 2016Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jun Hee Lee, Byeong No Jeong, Jong Won Han
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Publication number: 20160154338Abstract: An electrophotographic image forming apparatus may include an imaging cartridge and a toner cartridge that are detachably attached to a main body, a first optical sensor that is mounted in the imaging cartridge and detects a toner level in a development chamber, and a second optical sensor that is mounted in the toner cartridge and detects a toner level in the development chamber.Type: ApplicationFiled: February 5, 2016Publication date: June 2, 2016Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Seong-ho JEONG, Sang-jin PARK, Byeong-no JEONG, Jong-won HAN
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Patent number: 9285705Abstract: An electrophotographic image forming apparatus includes an imaging cartridge and a toner cartridge that are detachably attached to a main body, a first optical sensor that is mounted in the imaging cartridge and detects a toner level in a development chamber, and a second optical sensor that is mounted in the toner cartridge and detects a toner level in the development chamber.Type: GrantFiled: December 22, 2014Date of Patent: March 15, 2016Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Seong-ho Jeong, Sang-jin Park, Byeong-no Jeong, Jong-won Han
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Publication number: 20150355573Abstract: An electrophotographic image forming apparatus may include an imaging cartridge and a toner cartridge that are detachably attached to a main body, a first optical sensor that is mounted in the imaging cartridge and detects a toner level in a development chamber, and a second optical sensor that is mounted in the toner cartridge and detects a toner level in the development chamber.Type: ApplicationFiled: December 22, 2014Publication date: December 10, 2015Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Seong-ho Jeong, Sang-jin Park, Byeong-no Jeong, Jong-won Han
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Publication number: 20150355595Abstract: A toner cartridge and an electrophotographic image forming apparatus are provided. The toner cartridge attachable to, or detachable from a main body of an image forming apparatus includes a toner containing unit, a waste toner containing unit that is disposed below the toner containing unit in a gravitational direction and comprises a waste toner inlet through which waste toner flows, a first waste toner transporting member that transports the waste toner from the waste toner inlet in a length direction of the waste toner containing unit, and a second waste toner transporting member that transports the waste toner that is transported in the length direction of the waste toner containing unit in a width direction of the waste toner containing unit to disperse the waste toner in an inner portion of the waste toner containing unit, wherein a rotational center of the second waste toner transporting member is lower than a rotational center of the first waste toner transporting member.Type: ApplicationFiled: March 16, 2015Publication date: December 10, 2015Applicant: Samsung Electronics Co., Ltd.Inventors: Ho-jin JANG, Dong-geun Lee, Byeong-no Jeong, Ji-won Moon, Seung-chan Park
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Patent number: 9042773Abstract: An electrophotographic image forming apparatus and a development cartridge are provided. The electrophotographic image forming apparatus includes a body including an opening, a photoreceptor cartridge attached to, or detached from, the body through the opening, a photoconductive drum and a mounting portion, a development cartridge attached to, or detached from, the mounting portion through the opening while the photoreceptor cartridge is mounted in the body, a development roller supplying toner to an electrostatic latent image formed on the photoconductive drum, a cover for opening or closing the opening, and a pressurizing unit fixing the development cartridge to the mounting portion by providing a pressing force to the development cartridge in a direction parallel to a center line connecting centers of the photoconductive drum and development roller while the opening is closed.Type: GrantFiled: May 31, 2013Date of Patent: May 26, 2015Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hyung-seok Chang, Byeong-no Jeong, Seong-ho Jeong, Ji-won Moon, Jong-won Han
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Publication number: 20140205314Abstract: An electrophotographic image forming apparatus and a development cartridge are provided. The electrophotographic image forming apparatus includes a body including an opening, a photoreceptor cartridge attached to, or detached from, the body through the opening, a photoconductive drum and a mounting portion, a development cartridge attached to, or detached from, the mounting portion through the opening while the photoreceptor cartridge is mounted in the body, a development roller supplying toner to an electrostatic latent image formed on the photoconductive drum, a cover for opening or closing the opening, and a pressurizing unit fixing the development cartridge to the mounting portion by providing a pressing force to the development cartridge in a direction parallel to a center line connecting centers of the photoconductive drum and development roller while the opening is closed.Type: ApplicationFiled: May 31, 2013Publication date: July 24, 2014Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hyung-seok CHANG, Byeong-no JEONG, Seong-ho JEONG, Ji-won MOON, Jong-won HAN
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Patent number: 8787792Abstract: A process cartridge usable with an image forming apparatus includes a developing member, a photosensitive medium to face the developing member, a pair of supporting plates to rotatably support the developing member and the photosensitive medium; a center moving member rotatably disposed on the supporting plate, the center moving member having a first position in which the photosensitive medium contacts the developing member and a second position in which the photosensitive medium is spaced apart from the developing member; and a separation restraining member formed so that when the center moving member locates at the second position, the separation restraining member restrains the center moving member from moving from the second position.Type: GrantFiled: February 1, 2013Date of Patent: July 22, 2014Assignee: Samsung Electronics Co., LtdInventors: Jong-in Kim, Gun-soo Chang, Byeong-no Jeong, Yong-hun Kim, Dong-uk Kim
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Publication number: 20140119758Abstract: An image forming apparatus and a control method for the same, which ensure acquisition of a high-quality image by controlling physical-states of toner on a developer roller based on sensed variation in states of internal components of a developer cartridge, and which enable sensing and determination of the lifespan of the developer cartridge, is provided. The control method for the image forming apparatus includes applying a current detection bias to a developer roller blade of a developer cartridge, detecting the magnitude of current of the developer roller blade when the current detection bias is applied to the developer roller blade, and variably controlling a developer cartridge bias to be applied to the developer cartridge for image formation based on the detected magnitude of current of the developer roller blade, so as to allow a target magnitude of constant current to flow through the developer roller blade during image formation.Type: ApplicationFiled: October 28, 2013Publication date: May 1, 2014Applicant: Samsung Electronics Co., Ltd.Inventors: Jun Hee LEE, Byeong No Jeong, Jong Won Han
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Publication number: 20130259523Abstract: A process cartridge usable with an image forming apparatus includes a developing member, a photosensitive medium to face the developing member, a pair of supporting plates to rotatably support the developing member and the photosensitive medium; a center moving member rotatably disposed on the supporting plate, the center moving member having a first position in which the photosensitive medium contacts the developing member and a second position in which the photosensitive medium is spaced apart from the developing member; and a separation restraining member formed so that when the center moving member locates at the second position, the separation restraining member restrains the center moving member from moving from the second position.Type: ApplicationFiled: February 1, 2013Publication date: October 3, 2013Applicant: Samsung Electronics Co., Ltd.Inventors: Jong-in KIM, Gun-soo CHANG, Byeong-no JEONG, Yong-hun KIM, Dong-uk KIM
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Patent number: 8391747Abstract: A process cartridge usable with an image forming apparatus includes a developing member, a photosensitive medium to face the developing member, a pair of supporting plates to rotatably support the developing member and the photosensitive medium; a center moving member rotatably disposed on the supporting plate, the center moving member having a first position in which the photosensitive medium contacts the developing member and a second position in which the photosensitive medium is spaced apart from the developing member; and a separation restraining member formed so that when the center moving member locates at the second position, the separation restraining member restrains the center moving member from moving from the second position.Type: GrantFiled: March 22, 2010Date of Patent: March 5, 2013Assignee: SAMSUNG Electronics Co., Ltd.Inventors: Jong-in Kim, Gun-soo Chang, Byeong-no Jeong, Yong-hun Kim, Dong-uk Kim
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Publication number: 20110026967Abstract: A process cartridge usable with an image forming apparatus includes a developing member, a photosensitive medium to face the developing member, a pair of supporting plates to rotatably support the developing member and the photosensitive medium; a center moving member rotatably disposed on the supporting plate, the center moving member having a first position in which the photosensitive medium contacts the developing member and a second position in which the photosensitive medium is spaced apart from the developing member; and a separation restraining member formed so that when the center moving member locates at the second position, the separation restraining member restrains the center moving member from moving from the second position.Type: ApplicationFiled: March 22, 2010Publication date: February 3, 2011Applicant: Samsung Electronics Co., Ltd.Inventors: Jong-in Kim, Gun-soo Chang, Byeong-no Jeong, Yong-hun Kim, Dong-uk Kim