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1.发明公开公开(公告)号：US20240329568A1
公开(公告)日：2024-10-03
申请号：US18741048
申请日：2024-06-12
发明人： Shougo Sato
CPC分类号： G03G15/1605 , G03G15/168 , G03G15/6558 , G03G21/105 , G03G21/12 , G03G21/1619 , G03G21/1638 , G03G21/168 , G03G2215/00405 , G03G2215/0054 , G03G2221/1624 , G03G2221/1684
摘要： An image forming apparatus includes a chassis having an opening, a cover, photosensitive members, an intermediate transfer belt, a primary-transfer member, a secondary-transfer roller, a cleaner device, an external-sheet inlet, a waste toner container, a connector, and a conveying roller, which is arranged within the feeding path to feed the recording sheet inserted through the external-sheet inlet in the feeding path. The conveying roller is mounted on the waste toner container and removable from the chassis along with the waste toner container.
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公开(公告)号：US20240272576A1
公开(公告)日：2024-08-15
申请号：US18641579
申请日：2024-04-22
CPC分类号： G03G21/0035 , G03G21/0064 , G03G21/1676 , G03G21/168 , G03G2221/0005 , G03G2221/0047
摘要： An image forming apparatus includes a rotatable image bearing member, a developing member to develop an electrostatic latent image at a developing portion, a transfer member to transfer a developer image to a recording member at a transfer portion; and a brush provided with a plurality of base materials contacting the image bearing member at downstream of the transfer portion and upstream of the developing portion in a rotational direction of the image bearing member. The developer remaining on the surface of the image bearing member is collected in the developing portion. An average distance between base materials of the brush with respect to a rotational axis direction of the image bearing member is larger than an average particle diameter of the developer, and is equal to or less than a length corresponding to a special frequency visually recognizable by a user when the image formed by the image forming apparatus is observed by the user.
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公开(公告)号：US11994823B2
公开(公告)日：2024-05-28
申请号：US18149350
申请日：2023-01-03
CPC分类号： G03G21/0035 , G03G21/0064 , G03G21/1676 , G03G21/168 , G03G2221/0005 , G03G2221/0047
摘要： An image forming apparatus includes a rotatable image bearing member, a developing member to develop an electrostatic latent image at a developing portion, a transfer member to transfer a developer image to a recording member at a transfer portion; and a brush provided with a plurality of base materials contacting the image bearing member at downstream of the transfer portion and upstream of the developing portion in a rotational direction of the image bearing member. The developer remaining on the surface of the image bearing member is collected in the developing portion. An average distance between base materials of the brush with respect to a rotational axis direction of the image bearing member is larger than an average particle diameter of the developer, and is equal to or less than a length corresponding to a spatial frequency visually recognizable by a user when the image formed by the image forming apparatus is observed by the user.
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公开(公告)号：US20240168413A1
公开(公告)日：2024-05-23
申请号：US18512079
申请日：2023-11-17
申请人： Yuki ARAI
发明人： Yuki ARAI
CPC分类号： G03G15/1615 , G03G21/168 , G03G2215/1661 , G03G2221/1642
摘要： An image forming apparatus includes an image forming device, a body, an intermediate transfer unit, a cover, and a guide rail. The body has a bottle housing hole in which a toner bottle is removably inserted. The intermediate transfer unit includes an intermediate transfer belt and a plurality of rollers to drive the intermediate transfer belt and is removably disposed between the image forming device and the bottle housing hole. The intermediate transfer unit and the toner bottle are accessible from a front side of the body. The openable and closable cover is disposed at an inlet-and-outlet port of the bottle housing hole. The guide rail is disposed at a lower side of the bottle housing hole to slidably guide the intermediate transfer unit and has a front-side end extended to a position crossing at least a vertical projection line of the cover on the front side of the body.
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公开(公告)号：US11886131B2
公开(公告)日：2024-01-30
申请号：US18075036
申请日：2022-12-05
发明人： Yoshiya Numata , Hisashi Tsukijima
CPC分类号： G03G15/14 , G03G15/1615 , G03G15/5008 , G03G15/5054 , G03G15/5058 , G03G15/5062 , G03G15/6558 , G03G21/168 , G03G2215/00409
摘要： An image forming apparatus includes a rotatable image bearing member, a rotatable transfer member, a first driving source to drive the image bearing member, a second driving source to drive the transfer member, and a control portion. Based on a toner amount per unit area of the toner image transferred to each of a plurality of first divided regions on a plane of a recording material in a feeding direction, the control portion controls a driving speed of the transfer member while each of the plurality of the first divided regions passes through a transfer portion. The control portion acquires an index value correlating with a toner amount of the toner image transferred to each of a plurality of second divided regions of each first divided region in a widthwise direction, and controls the driving speed based on the index value while the first divided region passes through the transfer portion.
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公开(公告)号：US20190094792A1
公开(公告)日：2019-03-28
申请号：US16134066
申请日：2018-09-18
申请人： Oki Data Corporation
发明人： Kazuteru KURIHARA , Atsushi OHTA
IPC分类号： G03G21/16
CPC分类号： G03G21/1647 , G03G15/0136 , G03G15/0813 , G03G21/1676 , G03G21/168
摘要： An image forming apparatus includes an image carrier, a developer carrier disposed so as to face the image carrier, a transfer body disposed so as to face the image carrier, and a contact-separation mechanism. The contact-separation mechanism brings the developer carrier and the image carrier into contact with each other and separates the developer carrier and the image carrier from each other, and brings the image carrier and the transfer body into contact with each other and separates the image carrier and the transfer body from each other.
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7.发明申请公开(公告)号：US20190064706A1
公开(公告)日：2019-02-28
申请号：US15998524
申请日：2018-08-16
发明人： Shougo Sato , Atsushi Miwa
IPC分类号： G03G15/16
CPC分类号： G03G15/1615 , G03G21/168 , G03G2215/1623
摘要： An image forming apparatus includes: a drum unit including a photosensitive drum; a belt unit; and a secondary transfer member. The belt unit includes: a first roller; a second roller spaced apart from the first roller; an intermediate transfer belt supported by the first roller and the second roller; and a primary transfer member. The intermediate transfer belt includes: a first portion; and a second portion. The first portion has an upstream end and a downstream end in a first direction. The second portion has an upstream end and a downstream end in a second direction. The primary transfer member is configured to transfer a toner image from the photosensitive drum to the first portion. The secondary transfer member is capable of contacting the downstream end of the second portion, and is configured to transfer the toner image from the intermediate transfer belt to a sheet.
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公开(公告)号：US20180112762A1
公开(公告)日：2018-04-26
申请号：US15782172
申请日：2017-10-12
申请人： Hiroaki NIEDA
发明人： Hiroaki NIEDA
CPC分类号： F16H53/025 , F16H53/02 , G03G15/0136 , G03G15/1615 , G03G15/2032 , G03G15/2053 , G03G15/2064 , G03G21/1647 , G03G21/168 , G03G21/1685 , G03G2215/2025 , G03G2215/2032 , G03G2221/1657
摘要： A cam device includes a cam and a driver. The cam includes a cam face that is gradually distanced from a rotation center of the cam over a range greater than half a round of the cam. The driver rotates the cam in a first direction and in a second direction opposite the first direction.
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公开(公告)号：US09857760B2
公开(公告)日：2018-01-02
申请号：US15386293
申请日：2016-12-21
CPC分类号： G03G21/1647 , G03G15/1605 , G03G15/1615 , G03G21/168 , G03G21/186 , G03G2215/0132 , G03G2221/1657 , G03G2221/1684
摘要： An image forming apparatus includes image forming stations including respective electrophotographic photosensitive drums; an image transfer belt contactable to the drums; image transfer rollers, contactable to the transfer belt to urge the belt to the drums for transferring the toner images from the drums onto the belt, the rollers being provided with respective rotational shafts about an axis of which the rollers are rotatable; and a slidable member slidable in a direction in which the stations are arranged to retract the rollers away from the corresponding drums, the slidable member being provided with inclined surfaces contactable to the shafts, the inclined surfaces being disposed at such positions that the rollers are retracted from respective drums sequentially with the movement of the slidable member in the direction.
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公开(公告)号：US20170300003A1
公开(公告)日：2017-10-19
申请号：US15489370
申请日：2017-04-17
发明人： Yoshitaka TOKORO
CPC分类号： G03G21/168 , G03G15/162 , G03G21/1623 , G03G2215/00966 , G03G2221/1642 , G03G2221/1654 , G03G2221/1684
摘要： An image forming apparatus includes a unit horizontally insertable and drawable with respect to a main body frame, and a lock mechanism for the unit. The lock mechanism includes a lock member which has an engagement projection engageable with an engaged portion formed in the main body frame, and a biasing member which biases the lock member in a first direction toward engagement of the engagement projection with the engaged portion. Along with insertion of the unit, the lock member moves in a second direction, and when the unit is inserted to a predetermined position, biasing force of the biasing member causes the lock member to move in the first direction and the engagement projection engages with the engaged portion. By moving the lock member in the second direction, engagement between the engagement projection and the engaged portion is released to make it possible to draw the unit.
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