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公开(公告)号：US20230138063A1
公开(公告)日：2023-05-04
申请号：US17722594
申请日：2022-04-18
发明人： Hyunwoo KIM , Yongjae KIM , Jaeseok YOO
摘要： An example cartridge for an image forming apparatus, includes a frame, a photosensitive drum accommodated in the frame, a cleaner, a waste toner transfer part, and a waste toner storage part. The cleaner is to remove toner from an outer circumferential surface of the photosensitive drum. The waste toner transfer part is to transfer waste toner removed by the cleaner. The waste toner storage part is to store the waste toner transferred through the waste toner transfer part, and to be removable from the frame.
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公开(公告)号：US20230131306A1
公开(公告)日：2023-04-27
申请号：US17968233
申请日：2022-10-18
发明人： Atsushi Oguni , Shuntaro Tezuka
摘要： An image forming apparatus includes a photosensitive drum and an apparatus main body, the apparatus main body includes a transfer roller exerting a transfer pressing force on the photosensitive drum, a positioning portion positioning the photosensitive drum in first and second directions by being contacted by a bearing portion holding a rotation axis of the photosensitive drum, the first direction being in a virtual plane perpendicular to the rotation axis, and the second direction being a direction intersecting the first direction, and a pressing member exerting a holding-and-pressing force pressing the bearing portion toward the positioning portion, and, in a state in which the bearing portion is in contact with the positioning portion, the holding-and-pressing force has a component force in the first direction, and the transfer pressing force has a component force in the second direction that is oriented to press the bearing portion toward the positioning portion.
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公开(公告)号：US20230130018A1
公开(公告)日：2023-04-27
申请号：US17971207
申请日：2022-10-21
发明人： Ryosuke Tsuruga , Manato Kobayashi , Yutaka Kakehi
IPC分类号： G03G15/16
摘要： An image forming apparatus includes an image forming portion, a rotatable endless belt, a plurality of stretching rollers including an inner roller and an upstream roller, an outer member, a guiding member, a sheet-like pressing member, and a coating member. The coating member is disposed on the pressing member so as not to contact the belt and is electrically grounded or electrically conducted to the guiding member. The coating member is formed of a material lower in surface resistivity than the pressing member.
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公开(公告)号：US20230125722A1
公开(公告)日：2023-04-27
申请号：US17969140
申请日：2022-10-19
摘要： An image forming apparatus includes a rotatable image bearing member, a charging member, a developing member, a transfer member, an exposure unit, and a controller. The controller executes a preparatory operation in which before an image forming operation, rotation of the image bearing member is started and a charging voltage and a developing voltage are increased stepwise. In the preparatory operation, the controller carries out control so as to start application of the charging voltage at a voltage value not less than a discharge start voltage of the charging member before a surface region of the image bearing member positioned in a developing portion at a time of a start of the rotation of the image bearing member reaches a charging portion in a state which a surface of the image bearing member is exposed to light by the exposure unit.
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公开(公告)号：US11635711B2
公开(公告)日：2023-04-25
申请号：US17206422
申请日：2021-03-19
申请人： RICOH COMPANY, LTD.
发明人： Minoru Masuda , Kazumi Suzuki , Toyoshi Sawada , Akira Azami
摘要： An image forming method is provided. The image forming method includes: forming an electrostatic latent image on an electrostatic latent image bearer; developing the electrostatic latent image on the electrostatic latent image bearer with a toner to form a toner image; transferring the toner image from the electrostatic latent image bearer onto a continuous resin film; fixing the toner image on the continuous resin film with a heat roller or a heat belt. The toner contains a maleic-acid-modified polyolefin having a polypropylene block in a main chain.
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公开(公告)号：US20230118753A1
公开(公告)日：2023-04-20
申请号：US17968178
申请日：2022-10-18
发明人： Yuki Kurosu
IPC分类号： G03G15/16
摘要： An image forming apparatus includes an image forming portion, a belt unit including a cleaning unit and an opposing roller, and a swinging mechanism. The swinging mechanism includes a swingable member which is provided in a position different from a rotation center of the opposing roller while holding the opposing roller and the cleaning unit without changing a relative positional relationship between the opposing roller and the cleaning unit and which is swingable about a swing axis.
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公开(公告)号：US11630412B2
公开(公告)日：2023-04-18
申请号：US17655361
申请日：2022-03-17
发明人： Kiyotaka Kobayashi
摘要： An image forming apparatus includes a photosensitive drum, a charging roller, a development device, a transfer roller, a first electricity eliminator and a controller. The photosensitive drum is provided on a conveyance path along which a sheet is conveyed. The charging roller charges the photosensitive drum. The development device develops an electrostatic latent image formed on the photosensitive drum charged by the charging roller. The transfer roller faces the photosensitive drum across the conveyance path and generates a transfer bias. The first electricity eliminator irradiates the photosensitive drum with light on a downstream side of the development device in a rotational direction of the photosensitive drum and on an upstream side of the transfer roller in the rotational direction. The controller which controls the first electricity eliminator so as to irradiate only a non-sheet passing area of the photosensitive drum with the light.
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公开(公告)号：US11619895B2
公开(公告)日：2023-04-04
申请号：US17414700
申请日：2019-07-31
发明人： Ziv Seemann , Erez Heldy , Dror Halawa
摘要： In an example of the disclosure, service rotation of a drum along a longitudinal axis of the drum is caused. The service rotation is to apply a centrifugal force upon a liquid held by the drum. The centrifugal force pushes gas bubbles in the drum away from a curved surface of the drum and towards the longitudinal drum axis. The gas bubbles evacuate from the drum via an outlet tube positioned adjacent to the longitudinal drum axis. A production rotation of the drum is caused after the service rotation.
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公开(公告)号：US20230095231A1
公开(公告)日：2023-03-30
申请号：US17872682
申请日：2022-07-25
发明人： Masahiro Takenaga
摘要： An electrophotographic member includes a base layer and an elastic layer on the base layer, the elastic layer including a silicone rubber, a first cation selected from the group consisting of cations of specific structures, a second cation selected from the group consisting of cations of specific structures, and an anion.
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10.发明授权公开(公告)号：US11614699B2
公开(公告)日：2023-03-28
申请号：US17583616
申请日：2022-01-25
发明人： Satoshi Ezawa
摘要： An image forming apparatus includes: an annular endless belt; a drive roller, around which the endless belt is wound and which moves the endless belt; a first tension roller, around which the endless belt moved by the drive roller is wound; a biasing mechanism connected to the first tension roller and including an elastic member that applies a tension to the endless belt via the first tension roller; a second tension roller, around which the endless belt moved by the drive roller is wound at a different position from the first tension roller; and a moving mechanism connected to the second tension roller to move the second tension roller in directions closer to and away from the endless belt. A range of adjustment of a circumferential length of the endless belt by the moving mechanism is larger than a range of adjustment of the circumferential length of the endless belt by the biasing mechanism.
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