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1.发明公开公开(公告)号：US20240301236A1
公开(公告)日：2024-09-12
申请号：US18587002
申请日：2024-02-26
IPC分类号： C09D175/04 , C08G18/10 , C08G18/44 , C08G18/48 , C08G18/50 , C08G18/76 , G03G15/02 , G03G21/18
CPC分类号： C09D175/04 , C08G18/10 , C08G18/44 , C08G18/4854 , C08G18/5024 , C08G18/7621 , C08G18/7671 , G03G15/0291 , G03G21/1814 , G03G2215/00957 , G03G2215/00962
摘要： An electrophotographic roller comprising a substrate comprising a conductive outer surface and a resin layer on the outer surface of the substrate, wherein the resin layer comprises a polyurethane having a polycarbonate structure, an impedance at a frequency of 1.0×100 to 1.0×101 Hz is 1.00×106Ω or more when a specific AC voltage is applied to the outer surface of the electrophotographic roller while a frequency is changed between specific range, and when a corona discharger having a grid part is moved along an axial direction of the electrophotographic roller at a speed of 400 mm/sec, a maximum value of an electric potential of the outer surface is less than 20.0 V when measured at 0.06 seconds after a passage of the grid part.
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公开(公告)号：US20240241462A1
公开(公告)日：2024-07-18
申请号：US18402002
申请日：2024-01-02
发明人： YUKI NISHIZAWA , TOMOAKI NAKAI
IPC分类号： G03G15/02
CPC分类号： G03G15/0233 , G03G15/0283 , G03G15/0291
摘要： An electrostatic collecting apparatus includes: a collecting rotating member rotatably arranged opposed to a surface of an object to be cleaned and to which a substance to be collected attaches; an adsorption force generating unit for generating an electrostatic adsorption force between the collecting rotating member and the substance to be collected; a removing member for coming in contact with a circumferential surface of the collecting rotating member, and removing the substance to be collected from the collecting rotating member; and a collecting portion for collecting the substance to be collected, which has been removed from the collecting rotating member by the removing member. The electrostatic collecting apparatus includes an adsorption force reducing unit for partially reducing the electrostatic adsorption force between the substance to be collected, which is borne on the collecting rotating member, and the collecting rotating member at around the circumferential surface of the collecting rotating member.
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公开(公告)号：US11703774B2
公开(公告)日：2023-07-18
申请号：US17475672
申请日：2021-09-15
发明人： Kazutaka Sueshige , Daisuke Abe
CPC分类号： G03G15/0225 , G03G15/0291 , G03G15/0409 , G03G15/0872
摘要： A movable member includes a frame, a mounting portion, a rotatable image bearing member, a charging member, and a cleaning member. The cleaning member includes a base portion including a first surface positioned on one side of the frame, a second surface positioned on the other side of the frame, and a third surface, and includes a projected portion. The projected portion includes a first side surface positioned on the aforementioned the other side and a second side surface positioned on the aforementioned one side. The first side surface is positioned between the first surface and the second surface. The first side surface constitutes an end surface of the projected portion on the aforementioned the other side with respect to the axial direction, and the second side surface constitutes an end surface of the projected portion on the aforementioned one side with respect to the axial direction.
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公开(公告)号：US20190094744A1
公开(公告)日：2019-03-28
申请号：US16138211
申请日：2018-09-21
发明人： Yoshiaki Hara
CPC分类号： G03G15/0291 , G03G15/0121 , G03G15/0868 , G03G15/167 , G03G15/30 , G03G15/50 , G03G15/6597 , G03G21/1652
摘要： An image forming apparatus includes a controller substrate, a first mounting portion for a first hard disk drive, a second mounting portion for a second hard disk drive, a first connector electrically connecting the controller substrate and the first hard disk drive, a second connector electrically connecting the controller substrate and the second hard disk drive. The second connector is shifted toward a side downstream of the first connector in a hard disk drive inserting direction so as to be prevented from overlapping with the first connector as seen in a vertical direction. In the second mounting portion, a through hole extending in the vertical direction is formed at a position where the through hole overlaps with the first connector as seen in the vertical direction.
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公开(公告)号：US20190033779A1
公开(公告)日：2019-01-31
申请号：US15928561
申请日：2018-03-22
发明人： Tomoya ICHIKAWA , Takashi SHIMIZU , Masaaki FURUKAWA , Naoya KAMIMURA , Takashi YASUDA , Masanari YOSHIKAWA , Koji ABE
CPC分类号： G03G21/1814 , G03G15/0291 , G03G15/1605 , G03G21/1821 , G03G21/1857
摘要： A photosensitive drum is rotatable about a first axis extending in a particular direction. A frame rotatably supports the photosensitive drum. A developing roller is rotatable according to driving force about a second axis extending in the particular direction. A surface of the developing roller contacts a surface of the photosensitive drum through toner. A resistance generating member generates a resistance torque TQ1 serving as resistance between the frame and photosensitive drum in a case where the photosensitive drum rotates relative to the frame. In a case where the developing roller rotates according to the driving force in a state where the surface of the developing roller contacts the surface of the photosensitive drum through toner, the resistance torque TQ1 is smaller than a torque TQ2 that causes the photosensitive drum to rotate due to friction between the surface of the developing roller and the surface of the photosensitive drum.
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公开(公告)号：US20180259894A1
公开(公告)日：2018-09-13
申请号：US15918447
申请日：2018-03-12
IPC分类号： G03G15/00
CPC分类号： G03G15/553 , G03G15/0266 , G03G15/0291 , G03G15/55 , G03G2215/027
摘要： An image forming apparatus, including: a photoconductor configured to be rotatable; a charger configured to charge the photoconductor; an overcurrent detector configured to output an overcurrent detection signal in response to detection of an overcurrent in the charger; and a controller, wherein the controller is configured to execute: an obtaining process of obtaining the overcurrent detection signal output from the overcurrent detector; a first counting process of counting a first number of detections based on the overcurrent detection signal obtained in the obtaining process, the first number of detections being the number of the overcurrent detection signals synchronized with a first cycle corresponding to one rotation of the photoconductor; and a first determining process of determining whether the first number of detections is not smaller than a first threshold which is not smaller than 2.
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公开(公告)号：US10036994B2
公开(公告)日：2018-07-31
申请号：US15586834
申请日：2017-05-04
CPC分类号： G03G21/0047 , G03G15/0225 , G03G15/0258 , G03G15/0291
摘要： An electrifier cleaning mechanism includes a cleaning member which makes contact with part of a long discharge member, a ball screw arranged in parallel with a longitudinal direction of the discharge member and rotatably supported, a drive source which rotates the ball screw in both of forward and reverse directions, a holding member which holds the cleaning member and has a screw hole in which a screw part of the ball screw is screwed, and rotation of which in a circumferential direction of the ball screw is regulated, and a pressing member which presses the holding member from a first end side of the discharge member toward a second end side thereof in the longitudinal direction.
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公开(公告)号：US20180143561A1
公开(公告)日：2018-05-24
申请号：US15808115
申请日：2017-11-09
发明人： Kenichiro Kitajima
IPC分类号： G03G15/02
CPC分类号： G03G15/55 , G03G15/02 , G03G15/0233 , G03G15/0258 , G03G15/0266 , G03G15/0283 , G03G15/0291 , G03G15/5016 , G03G15/5037 , G03G15/553 , G03G2215/00071 , G03G2215/026 , G03G2215/027
摘要： An image forming apparatus includes a photosensitive member, a corona charger including a discharging electrode and a grid electrode having a surface layer containing a carbon atom as a main component and configured to electrically charge the photosensitive member under application of a voltage to the discharging electrode and the grid electrode, and an output portion configured to output information on a lifetime of the grid electrode. The output portion outputs the information on the basis of an index value of an amount of use of the grid electrode correlating with a product of a value of a grid current flowing through the grid electrode and a time of flowing of the grid current through the grid electrode.
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公开(公告)号：US09971269B2
公开(公告)日：2018-05-15
申请号：US15590129
申请日：2017-05-09
IPC分类号： G03G13/045 , G03G15/06 , G03G15/00 , G03G15/02 , G03G15/24
CPC分类号： G03G13/045 , G03G15/0208 , G03G15/0275 , G03G15/0291 , G03G15/043 , G03G15/047 , G03G15/06 , G03G15/24 , G03G15/65 , G03G21/08 , G03G2215/02 , G03G2221/00
摘要： A discharging method used in an image forming apparatus includes discharging, with an exposure device, an exposure range of the latent image bearer, and discharging, with a discharger, an area of the latent image bearer outside the exposure range and inside a developing range in a main scanning direction. The exposure range is inside the developing range in the main scanning direction. The discharging with the exposure device and the discharging with the discharger are performed when a rotation of the latent image bearer is stopped after a toner image is transferred from the latent image bearer.
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公开(公告)号：US20180046122A1
公开(公告)日：2018-02-15
申请号：US15664419
申请日：2017-07-31
发明人： Kenichiro Kitajima
IPC分类号： G03G15/02
CPC分类号： G03G15/5016 , G03G15/0233 , G03G15/0266 , G03G15/0291 , G03G15/5037 , G03G15/5062
摘要： An image forming apparatus includes a movable photosensitive member, first and second corona chargers, an adjusting mechanism, a developing device, a detecting member configured to detect a surface potential of the photosensitive member at a plurality of positions with respect to the widthwise direction of the photosensitive member, an input portion, and a display portion. In accordance with input of an instruction to the input portion, the detecting portion detects at least two surface potentials of three surface potentials including the surface potential of the photosensitive member after being charged by the first and second corona chargers, the surface potential of the photosensitive member after being charged by the first corona charger, and the surface potential of the photosensitive member after being charged by the second corona charger. A detection result of the detecting member is displayed at the display portion.
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