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公开(公告)号：US20240085822A1
公开(公告)日：2024-03-14
申请号：US18512721
申请日：2023-11-17
IPC分类号： G03G15/08
CPC分类号： G03G15/0848 , G03G15/0862 , G03G15/0865 , G03G15/0855 , G03G2215/0891 , G03G2215/0894 , G03G2215/0897
摘要： An image forming apparatus includes an apparatus body, an image bearing member, and a process unit attached to the apparatus body, the process unit including a frame including a storage portion configured to store developer, a developer bearing member configured to supply developer to the image bearing member to develop an electrostatic latent image; and a circuit board attached to the frame, wherein the circuit board includes a light emitting portion configured to emit light, and a light receiving portion configured to receive the light emitted from the light emitting portion and having passed through an interior of the storage portion.
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公开(公告)号：US20240004327A1
公开(公告)日：2024-01-04
申请号：US18192160
申请日：2023-03-29
CPC分类号： G03G15/0863 , G03G15/0862 , G03G15/0889 , G03G15/0865 , G03G15/5016
摘要： An image forming apparatus includes a body, a toner container that is removably set in the body and contains toner, a toner supplier to supply the toner from the toner container to the body, a memory that stores container information that is information of the toner container, and circuitry. The circuitry is to determine, after the toner container is set in the body, based on the container information acquired from the memory, whether the toner container set in the body is same as a toner container set in the body in a past and the container information satisfies a predetermined condition, and to drive the toner supplier in a case where the toner container set in the body is determined to be same as the toner container set in the body in the past and the container information satisfies the predetermined condition.
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公开(公告)号：US11796937B2
公开(公告)日：2023-10-24
申请号：US17682274
申请日：2022-02-28
发明人： Kazumichi Shimizu
CPC分类号： G03G15/0889 , G03G15/0856 , G03G15/0862 , G03G15/0863 , G03G15/0868 , G03G15/0877 , G03G15/0879 , G03G15/0891 , G03G21/1878
摘要： An image forming apparatus includes an image bearing member, a replenishment unit, an agitation member, a drive source, a control unit, a memory unit, and a remaining amount detection unit. The control unit performs (1) a first operation to drive the drive source for a first time in a case where it is judged based on the output value of the remaining amount detection unit that the toner has increased, and (2) a second operation to drive the drive source for a second time that is shorter than the first time in a case where it is judged based on the output value of the remaining amount detection unit that the toner has not increased.
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公开(公告)号：US20180299802A1
公开(公告)日：2018-10-18
申请号：US16010475
申请日：2018-06-17
发明人： Tomoya USUI
IPC分类号： G03G15/08 , G03G15/095
CPC分类号： G03G15/095 , G03G15/0856 , G03G15/0862 , G03G2215/0897
摘要： A powder detection device includes a detection unit, a cleaning unit, and a drive unit. The detection unit includes detection surfaces provided in a storage container and enables detection of powder through the detection surfaces. The cleaning unit removes the powder from the detection surfaces by sliding along the detection surfaces. The drive unit reciprocates the cleaning unit along a path extending through the detection surfaces and differentiates a speed at which the cleaning unit is moved in a first direction along the path from a speed at which the cleaning unit is moved in a second direction opposite to the first direction.
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公开(公告)号：US20180246453A1
公开(公告)日：2018-08-30
申请号：US15892277
申请日：2018-02-08
发明人： Fumiaki Hirose
IPC分类号： G03G15/08
CPC分类号： G03G15/5062 , G03G15/08 , G03G15/0862 , G03G15/0867 , G03G15/0877 , G03G15/5033 , G03G15/5041 , G03G15/5087 , G03G15/556 , G03G21/14
摘要： A video count value is acquired per unit area predetermined in a direction in which a recording medium is conveyed, based on recording target image data. When an image has been formed on an area of the recording medium from which the video count value has been acquired, control is performed by using the acquired video count value so that a developing unit is replenished with an amount of toner corresponding to the video count value acquired from the area.
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公开(公告)号：US09989884B2
公开(公告)日：2018-06-05
申请号：US15491999
申请日：2017-04-20
发明人： Keisuke Isoda
IPC分类号： G03G15/08
CPC分类号： G03G15/0855 , G03G15/0862
摘要： A toner amount detection sensor has a first light receiving element, a second light receiving element, and a toner amount calculation unit. The first light receiving element is provided on a side opposite to a light emitting element with respect to a plane extending in a direction perpendicular to a surface of a transfer belt. The second light receiving element is provided at a position avoiding a plane containing the light emitting element and the first light receiving element and is provided separately from the first light receiving element. The toner amount calculation unit calculates the toner amount from the light quantity of the light equivalent to the specular reflection light received by the first light receiving element and the light quantity of the diffuse-reflected light received by the second light receiving element.
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公开(公告)号：US09703233B2
公开(公告)日：2017-07-11
申请号：US15368059
申请日：2016-12-02
发明人： Seong-ho Jeong , Sang-jin Park , Byeong-no Jeong , Jong-won Han
CPC分类号： G03G15/0856 , G03G15/0862 , G03G15/0868 , G03G21/1642 , G03G2215/0891 , G03G2215/0894
摘要： 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.
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公开(公告)号：US09678467B2
公开(公告)日：2017-06-13
申请号：US15205195
申请日：2016-07-08
发明人： Hiroyoshi Maehara
CPC分类号： G03G21/00 , G03G15/0856 , G03G15/0862 , G03G2215/0891
摘要： A developer detector includes a sensor housing portion, an optical sensor, and a cleaning portion. The sensor housing portion can be installed on a wall surface of a hopper storing a developer. The sensor housing portion includes a detection surface, and a step surface protruding a smaller amount from the wall surface than the detection surface to form a step height from the detection surface. The optical sensor is housed in the sensor housing portion and detects the developer through the detection surface. The cleaning portion moves in a moving region including a first region facing the detection surface and a second region facing the step surface and cleans the detection surface on the way of moving. The cleaning portion includes a flexible member and makes the flexible member slide on the detection surface while making the flexible member contact the detection surface under pressure in the first region.
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公开(公告)号：US09632477B1
公开(公告)日：2017-04-25
申请号：US14975986
申请日：2015-12-21
发明人： Ligia Aura Bejat , Michael Alan Gist , Michael Craig Leemhuis , Prabuddha Jyotindra Mehta , Eric Carl Stelter
CPC分类号： G03G21/1647 , G03G15/0856 , G03G15/086 , G03G15/0862 , G03G15/0865 , G03G15/0868 , G03G15/087 , G03G21/105 , G03G21/12 , G03G2215/0888 , G03G2215/0891 , G03G2215/0894
摘要： An electrophotographic imaging system according to one example embodiment includes a toner cartridge including a housing having a reservoir for storing toner. A shaft is rotatably positioned within the reservoir and includes a threaded portion. A partition mounted on the threaded portion of the shaft moves axially along the threaded portion when the shaft rotates. The partition divides the reservoir into a first toner compartment and a second toner compartment. A sensing arrangement monitors an axial position of the partition along the shaft. The sensing arrangement includes a plurality of sensors arranged at predetermined axial locations relative to the shaft and a sensed member connected to the partition. The plurality of sensors are positioned to detect an axial position of the sensed member relative to the shaft for determining the axial position of the partition along the shaft.
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公开(公告)号：US09618897B2
公开(公告)日：2017-04-11
申请号：US15072682
申请日：2016-03-17
发明人： Tadahiro Kiyosumi
CPC分类号： G03G21/12 , G03G15/0862
摘要： An image forming apparatus includes: an optical sensor which includes a light-emitting part and a light-receiving part opposed to the light-emitting part and is configured to detect an amount of waste toner accumulated in a waste toner container, the waste toner being produced with formation of an image and then accommodated in the waste toner container; a detecting section configured to detect a change in an output of the light-receiving part; a shielding member interposed between the light-emitting part and the light-receiving part and configured to create, between the light-emitting part and the light-receiving part, a light-transmitting environment equivalent to that when the waste toner container is filled with the waste toner; and an adjusting section configured to adjust a light intensity of the light-emitting part when the shielding member is interposed between the light-emitting part and the light-receiving part.
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