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31.发明公开公开(公告)号：US20230408953A1
公开(公告)日：2023-12-21
申请号：US18248564
申请日：2021-10-05
发明人： Maki SOMETE
CPC分类号： G03G15/0891 , G03G21/0005
摘要： A toner conveying device (7a to 7d) includes a toner conveying path (26), a conveying screw (29), and a flicker (31). The conveying screw (29) includes a rotation shaft (29a) and a helical blade (29b) formed on an outer circumferential surface of the rotation shaft (29a). The flicker (31) includes a plurality of first contact pieces (33) that press the conveying screw (29) in a first direction toward a bottom of the toner conveying path (26), and a plurality of second contact pieces (34) that contact the conveying screw (29) from a side opposite to the first contact pieces (33) and press the conveying screw (29) in a second direction opposite to the first direction. A force with which the first contact pieces (33) press the conveying screw (29) is greater than a force with which the second contact pieces (34) press the conveying screw
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32.发明授权公开(公告)号：US11841675B2
公开(公告)日：2023-12-12
申请号：US18152321
申请日：2023-01-10
发明人： Yu Fukasawa , Yukio Kubo , Yosuke Kashiide
CPC分类号： G03G21/1885 , G03G15/0863 , G03G21/1878 , G03G2221/1823
摘要： Disclosed is a cartridge attachable to an image forming apparatus body, the cartridge including: a memory member storing information relating to the cartridge; and a supporting body having a memory mounting portion on which the memory member is mounted, the memory member having a first surface, a second surface, and a lateral surface, the first surface is provided with a contact portion connected to a body electrode portion of the body of the image forming apparatus when the cartridge is installed in the body of the image forming apparatus, the memory mounting portion has a first opposing portion opposing the second surface and a second opposing portion opposing the lateral surface when the memory member is mounted, the memory member is mounted by adhesive between the second surface and the first opposing portion and between the lateral surface and the second opposing portion.
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公开(公告)号：US11822284B2
公开(公告)日：2023-11-21
申请号：US17837597
申请日：2022-06-10
发明人： Yuki Tashiro
CPC分类号： G03G21/206 , G03G15/0258 , G03G2221/1645
摘要： An image forming apparatus includes a first image forming unit, a second image forming unit, and an intake unit. The intake unit includes an intake duct provided at one side relative to the first and the second image forming units in an arrangement direction of the plurality of image forming units and configured to take in air outside the image forming apparatus from an intake port, a first fan configured to take in air from a first communication port, and a second fan configured to take in air from a second communication port. The intake unit branches air taken in from the intake duct to the air taken in from the first communication port by the first fan and the air taken in from the second communication port by the second fan, and blows the air to each of the first image forming unit and the second image forming unit.
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公开(公告)号：US11815827B2
公开(公告)日：2023-11-14
申请号：US18081943
申请日：2022-12-15
CPC分类号： G03G15/0815 , G03G21/0035 , G03G21/0064 , G03G21/0082 , G03G15/5004 , G03G15/5037 , G03G2221/0015 , G03G2221/0042 , G03G2221/0073
摘要： An image forming apparatus includes a photosensitive member, a charging member, an exposing device, a developing device, a transfer member, a brush, a voltage applying portion, and a control portion controlling a surface potential of the photosensitive member at the brush contacting position. When a value of subtracting a value of the surface potential of the photosensitive member in the brush contacting position from a value of the brush voltage is defined as a contacting position potential difference, the control portion controls the surface potential of the photosensitive member in the brush contacting position so that the contacting position potential difference is changed from a first potential difference to a second potential difference in a predetermined direction which is either one of an increasing direction or a decreasing direction, and then the contacting position potential difference is changed from the second potential difference to a third potential difference in the predetermined direction.
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35.发明授权公开(公告)号：US11809121B2
公开(公告)日：2023-11-07
申请号：US17970408
申请日：2022-10-20
发明人： Koki Omoto
CPC分类号： G03G21/0011 , G03G21/20
摘要： A control unit of an image forming apparatus calculates an actual linear pressure of a cleaning blade by taking into account, with respect to an initial linear pressure of the cleaning blade measured in advance, a linear pressure reduction based on cumulative rotation time of an image carrier, a linear pressure reduction based on cumulative non-rotation time of the image carrier, and a linear pressure reduction based on an external temperature detected by a temperature detection unit, and the control unit outputs information for urging replacement of the cleaning blade to an output unit when a linear pressure difference between the actual linear pressure of the cleaning blade and a lower-limit linear pressure of the cleaning blade calculated in advance from an abrasion amount of the cleaning blade with respect to the cumulative number of rotations of the image carrier reaches a predetermined threshold value.
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公开(公告)号：US11796947B2
公开(公告)日：2023-10-24
申请号：US17887312
申请日：2022-08-12
发明人： Katsuhiko Oba , Kohei Koguchi , Isao Koishi
CPC分类号： G03G15/5016 , G03G15/0865 , G03G21/1633 , G03G15/0894
摘要： An image forming apparatus includes an image bearing member, a developer bearing member, a discharge unit, a stacking tray including a stacking surface on which the recording material is stacked, a replenishment port, a cover capable of moving between a closed position where the cover covers the replenishment port and constitutes at least part of the stacking surface and an open position where the cover exposes the replenishment port, and an information display unit for displaying information about a procedure for replenishing the developing container with the developer from the replenishment container.
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公开(公告)号：US20230305480A1
公开(公告)日：2023-09-28
申请号：US17948546
申请日：2022-09-20
CPC分类号： G03G21/0035 , G03G15/161 , G03G2221/0005 , G03G2215/1661
摘要： A cleaning device includes: a cleaning brush that has bristles that rotate and contact a surface, to which toner has adhered, of a cleaning member to be cleaned, the cleaning brush removing the toner adhered to the surface of the cleaning member; a first contact member that contacts the bristles without a position of the first contact member relative to a position of the cleaning brush being changed; and a second contact member that contacts the bristles at a location downstream from the first contact member in a direction of rotation of the cleaning brush and without a position of the second contact member relative to the position of the cleaning brush being changed, and that is disposed on an extension line extended from a line between an axial center of the cleaning brush and a base of the bristles that move away from the first contact member.
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公开(公告)号：US20230297019A1
公开(公告)日：2023-09-21
申请号：US17871987
申请日：2022-07-25
发明人： Yoshiro YAMASHITA
CPC分类号： G03G21/0017 , G03G15/161 , G03G15/162 , G03G2215/1661
摘要： A transfer device includes an intermediate transfer member that has an outer peripheral surface to which a toner image is to be transferred, a primary transfer device that has a primary transfer member performing primary transfer of a toner image formed on a surface of an image holder to the outer peripheral surface of the intermediate transfer member, a secondary transfer device that has a secondary transfer member which is arranged in contact with the outer peripheral surface of the intermediate transfer member and performs secondary transfer of the toner image transferred to the outer peripheral surface of the intermediate transfer member to a surface of a recording medium, and a cleaning device that has a cleaning blade cleaning the outer peripheral surface of the intermediate transfer member, in which a coefficient D of dynamic friction between the intermediate transfer member and the cleaning blade is 0.2 or more and 1.2 or less, a lead-in angle A that a contact portion of the cleaning blade coming into contact with the intermediate transfer member forms with the intermediate transfer member is 15° or more and 80° or less, and the coefficient D of dynamic friction and the lead-in angle A satisfy Expression (1),
lead-in angle A−(50×coefficient D of dynamic friction)>0 Expression (1).-
公开(公告)号：US20230288844A1
公开(公告)日：2023-09-14
申请号：US18170567
申请日：2023-02-17
发明人： YUICHIRO INABA , NORIHIRO MATSUMOTO
CPC分类号： G03G15/16 , G03G21/0011 , G03G2221/1648
摘要： A transfer unit transferring a developer image onto a transfer medium includes: an image bearing member on which the developer image is formed; a cleaning member provided to extend in a width direction of the image bearing member to abut against the image bearing member, and remove a developer on the image bearing member; and a seal member that prevents the developer removed by the cleaning member from leaking outside the transfer unit, the seal member is opposed to a tip portion of the cleaning member, the transfer unit further including a first unit provided with the image bearing member and the cleaning member, and a second unit that is provided with the seal member and can engage with the first unit, wherein the second unit engages with the first unit so that the seal member abuts against the cleaning member and the image bearing member.
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公开(公告)号：US20230280678A1
公开(公告)日：2023-09-07
申请号：US18116208
申请日：2023-03-01
申请人： Hitoshi Yamamoto
发明人： Hitoshi Yamamoto
CPC分类号： G03G15/16 , G03G21/0011
摘要： An image forming apparatus includes a photoconductor; a charger, an exposure device, a developing device, a transferor, a cleaner, a belt resistance sensing device, and a transfer bias applier. The charger charges a surface of the photoconductor with a charge of a single polarity. The exposure device irradiates the surface of the photoconductor with light after charging. The developing device supplies a developer to the surface of the photoconductor. The transferor transfers an image developed by the developing device, from the surface of the photoconductor onto an intermediate transfer belt. The cleaner cleans the developer remaining on the surface of the photoconductor after an image transfer by the transferor. The sensing device is provided for the transferor, to detect a resistance value from a current value flowing during application of a transfer bias. The bias applier controls, according to the resistance value detected, the transfer bias applied to the transferor.
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