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公开(公告)号：US11483436B2
公开(公告)日：2022-10-25
申请号：US17312160
申请日：2020-03-11
发明人： Kiho Park , Minkeun Song , SaeJin Park , Yong-Ho You , Sungdae Kim
摘要： An image forming apparatus includes a printer engine, a sensor and a processor. The printer engine forms an image. The sensor outputs vibration information associated with a vibration of the printer engine. The processor determines whether at least one component of the printer engine has an abnormality based on the output vibration information.
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公开(公告)号：US11310391B2
公开(公告)日：2022-04-19
申请号：US17051959
申请日：2019-07-05
发明人： Minkeun Song , Kiho Park , Yong-Ho You , Hyoungil Kim
摘要： An image forming apparatus is provided. The image forming apparatus includes a print engine to be used to perform an image forming job, a motor to start the print engine, a driving circuit to supply a power to the motor and to include a sensor to sense a size of current of the power supplied to the motor during an operation to perform the image forming job, and a processor to detect an occurrence of jam based on a size of current sensed by the sensor in a first time interval while the motor is driven and a size of current sensed by the sensor after a determined time from the first time interval.
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公开(公告)号：US11966188B2
公开(公告)日：2024-04-23
申请号：US17058823
申请日：2019-06-12
发明人： Yong-Ho You , Hyoungil Kim , Kiho Park , Minkeun Song
CPC分类号： G03G15/70 , B65H7/12 , G03G15/2039 , B65H2511/528 , B65H2515/70 , B65H2557/24
摘要： An image forming apparatus is provided. The image forming apparatus includes a print engine to perform an image forming job, a motor to drive the print engine, a driving circuit, to supply a power to the motor, and including a sensor to sense an amount of current of the power supplied to the motor, and a processor to analyze a frequency component of the current supplied to the motor by using the amount of current sensed by the sensor for a predetermined time, and to determine an occurrence of a jam based on the analyzed frequency component.
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