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1. 发明公开

EP4075203A1 PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS 审中-实审转让
公开(公告)号：EP4075203A1
公开(公告)日：2022-10-19
申请号：EP22171733.3
申请日：2013-12-13
申请人： Canon Kabushiki Kaisha
发明人： MAESHIMA, Hideki , HIRUKAWA, Kuniaki , GOFUKU, Shuichi , MITSUI, Yoshihiro
IPC分类号： G03G21/18 , G03G15/08
摘要： A developing unit is detachably mountable to a main assembly of an image forming apparatus, the developing unit comprising a rotatable developing roller, a rotatable developer supplying roller provided in contact with the developing roller and configured to supply a developer to the developing roller; a developer accommodating chamber configured to accommodate the developer; a developing chamber in which the developer supplying roller is provided; a rotatable feeding member provided in the developer accommodating chamber and configured to feed the developer from the developer accommodating chamber into the developing chamber by moving the developer upwardly against a gravity; and a driving force receiving portion configured to receive a driving force for rotating the developer supplying roller, the developing roller and the feeding member. The developing unit further comprises a first driving force transmitting portion provided on the developer supplying roller and configured to transmit the driving force received by the driving force receiving portion to the developing roller; and a second driving force transmitting portion provided on the developing roller and configured to transmit the driving force from the first driving force transmitting portion to the developing roller, wherein the driving force receiving portion is provided on the developer supplying roller, wherein the developer supplying roller and the developing roller are rotatable such that surfaces of the developer supplying roller and the developing roller move at a contact portion between the developer supplying roller and the developing roller n the same direction and toward a bottom of the developing chamber, and wherein a peripheral speed of the surface of the developer supplying roller is higher than that of the developing roller.

2. 发明公开

EP3637192A1 PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS 有权
公开(公告)号：EP3637192A1
公开(公告)日：2020-04-15
申请号：EP19207356.7
申请日：2013-12-13
申请人： CANON KABUSHIKI KAISHA
发明人： MAESHIMA, Hideki , HIRUKAWA, Kuniaki , GOFUKU, Shuichi , MITSUI, Yoshihiro
IPC分类号： G03G15/08 , G03G21/18
摘要： A process cartridge comprises a photosensitive drum; a rotatable developing roller for developing an electrostatic latent image formed on-the photosensitive drum; a rotatable toner supplying roller, provided in contact with the developing roller, for supplying toner to the developing roller; a toner chamber for containing toner; a developing chamber in which the toner supplying roller is positioned; a feeding member provided in the toner chamber and rotatable to feed the toner from the toner chamber to the developing chamber; a coupling operatively connected to the toner supply roller and configured to receive a driving force for rotating the toner supplying roller, the developing roller, and the feeding member; a first gear operatively connected to the toner supply roller and configured to transmit the driving force received by the coupling to the developing roller; and a second gear operatively connected to the developing roller and configured to transmit the driving force from the first gear to the developing roller, wherein the process cartridge is configured such that, when the coupling receives the driving force and the process cartridge is oriented with the developing roller positioned above the toner chamber, a rotational direction of the developing roller is opposite to a rotational direction of the toner supplying roller, a part of a surface of the toner supplying roller rotates from a first position at which the part of the surface of the toner supply roller contacts a surface of the developing roller to a second position where the part of the surface of the toner supplying roller moves out of contact with the surface of the developing roller, with the first position being above the second position, the feeding member feeds toner upward from the toner chamber to the developing chamber, and a speed of the surface of the toner supplying roller is greater than a speed of the surface of the developing roller.

3. 发明授权

EP3396468B1 PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS 有权
公开(公告)号：EP3396468B1
公开(公告)日：2020-05-27
申请号：EP18169472.0
申请日：2008-06-30
申请人： CANON KABUSHIKI KAISHA
发明人： MAESHIMA, Hideki , MURAYAMA, Kazunari , YOSHIMURA, Akira
IPC分类号： G03G21/18

4. 发明授权

EP2162800B1 PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS 有权
公开(公告)号：EP2162800B1
公开(公告)日：2018-06-13
申请号：EP08777927.8
申请日：2008-06-30
申请人： Canon Kabushiki Kaisha
发明人： MAESHIMA, Hideki , MURAYAMA, Kazunari , YOSHIMURA, Akira
IPC分类号： G03G21/18
CPC分类号： G03G21/1842 , G03G21/18 , G03G21/1825 , G03G21/1839
摘要： A process cartridge is provided for detachably mounting to a main assembly of an electrophotographic image forming apparatus. The process cartridge includes an electrophotographic photosensitive drum, a developing roller for developing an electrostatic latent image formed on the electrophotographic photosensitive drum, a drum unit containing the electrophotographic photosensitive drum, and a developing unit which contains the developing roller and which is movable relative to the drum unit such that developing roller is movable between a contact position in which the developing roller is contacted to the electrophotographic photosensitive drum and a spaced position in which the developing roller is spaced from the electrophotographic photosensitive drum. The process cartridge also includes a force receiving member capable of taking an operating position for moving the developing frame from the contacting position to the spacing position by receiving an external force, and a stand-by position retracted from the operating position.

5. 发明公开

EP2933690A1 PROCESS CARTRIDGE AND IMAGE FORMATION DEVICE 有权
标题翻译： PROZESSKARTUSCHE UND BILDERZEUGUNGSVORRICHTUNG
公开(公告)号：EP2933690A1
公开(公告)日：2015-10-21
申请号：EP13862816.9
申请日：2013-12-13
申请人： Canon Kabushiki Kaisha
发明人： MAESHIMA, Hideki , TANABE, Masato , NOMURA, Keisuke , SHIMIZU, Hiroki
IPC分类号： G03G21/18 , G03G15/08
CPC分类号： G03G21/1842 , G03G21/1821 , G03G21/1825 , G03G21/1857 , G03G21/186 , G03G21/1864
摘要： A process cartridge includes: a photosensitive drum; a rotatable developing roller for developing an electrostatic latent image formed on the photosensitive drum; a rotatable roller having a rotation shaft in a position deviated from an axis of the developing roller, for transmitting a driving force to the developing roller; a coupling member disposed at an end portion of the shaft of the developing roller; a driving force receiving portion, provided on the coupling member and movable in a direction crossing the shaft of the rotatable roller, for receiving a driving force to be transmitted to the developing roller; an urging member for urging the drive receiving portion in the direction crossing the shaft of the rotatable roller; a supporting portion for rotatably supporting the drive receiving portion so as to be movable together with the drive receiving portion toward the rotatable roller in the direction crossing the shaft of the rotatable roller; and an abutting portion for receiving the supporting portion urged by the urging member, wherein the abutting portion is positioned outside an outer periphery of the photosensitive drum on a plane perpendicular to the shaft of the rotatable roller.
摘要翻译：处理盒包括：感光鼓; 用于显影形成在感光鼓上的静电潜像的可旋转显影辊; 旋转辊，其具有偏离显影辊的轴线的位置的旋转轴，用于将驱动力传递到显影辊; 连接构件，其设置在所述显影辊的轴的端部处; 驱动力接收部，设置在所述联接构件上并且可沿与所述可旋转辊的轴交叉的方向移动，用于接收要传递到所述显影辊的驱动力; 推动构件，用于沿与所述可旋转辊的轴交叉的方向推压所述驱动器接收部; 支撑部分，用于可旋转地支撑所述驱动接收部分，以便与所述驱动接收部分一起沿与所述可旋转辊的轴交叉的方向朝向所述可旋转辊移动; 以及用于接收由推动构件推动的支撑部分的抵接部分，其中抵接部分位于与旋转辊的轴垂直的平面上的感光鼓的外周的外侧。

6. 发明公开

EP2933685A1 PROCESS CARTRIDGE AND IMAGE FORMATION DEVICE 有权
标题翻译：处理筒和图像形成装置
公开(公告)号：EP2933685A1
公开(公告)日：2015-10-21
申请号：EP13862540.5
申请日：2013-12-13
申请人： Canon Kabushiki Kaisha
发明人： MAESHIMA, Hideki , HIRUKAWA, Kuniaki , GOFUKU, Shuichi , MITSUI, Yoshihiro
IPC分类号： G03G15/08
CPC分类号： G03G21/1803 , G03G15/0806 , G03G15/0808 , G03G21/1825 , G03G21/185 , G03G21/1857 , G03G2221/1657
摘要： A process cartridge comprising: (i) a photosensitive drum; (ii) a rotatable developing roller for developing an electrostatic latent image formed on the photosensitive drum; (iii) a developer supplying roller, provided in contact with the developing roller, for supplying a developer to the developing roller; (iv) a driving force receiving portion for receiving a driving force, wherein the driving force receiving portion is provided at a shaft end portion of the developer supplying roller and is movable in a direction crossing a shaft of the developer supplying roller; (v) a first driving force transmitting portion for transmitting the driving force, received by the driving force receiving portion, to the developing roller, wherein the first driving force transmitting portion is provided on the developer supplying roller; and (vi) a second driving force transmitting portion, provided on the developing roller, for transmitting the driving force by engaging with the driving force transmitting portion. A rotational direction of the developing roller is an opposite direction to a rotational direction of the developer supplying roller, and a surface speed of the developer supplying roller is larger than a surface speed of the developing roller.
摘要翻译：一种处理盒，包括：（i）感光鼓; （ii）用于显影形成在感光鼓上的静电潜像的可旋转显影辊; （iii）显影剂供应辊，与显影辊接触设置，用于向显影辊供应显影剂; （iv）用于接收驱动力的驱动力接收部分，其中，所述驱动力接收部分设置在所述显影剂供应辊的轴端部分处，并且可在与所述显影剂供应辊的轴交叉的方向上移动; （v）第一驱动力传递部分，用于将由驱动力接收部分接收的驱动力传递给显影辊，其中第一驱动力传递部分设置在显影剂供给辊上; 和（vi）第二驱动力传递部分，设置在显影辊上，用于通过与驱动力传递部分接合而传递驱动力。显影辊的旋转方向是与显影剂供应辊的旋转方向相反的方向，并且显影剂供应辊的表面速度大于显影辊的表面速度。

7. 发明授权

EP1939697B1 Electrophotographic image forming apparatus and process cartridge 有权
标题翻译：电子照相成像设备和处理盒
公开(公告)号：EP1939697B1
公开(公告)日：2014-11-05
申请号：EP07124148.3
申请日：2007-12-28
申请人： Canon Kabushiki Kaisha
发明人： MURAYAMA, Kazunari , KAKITANI, Masaki , MAESHIMA, Hideki , TAKAYAMA, Akinori
IPC分类号： G03G21/18
CPC分类号： G03G21/1867 , G03G2221/1654 , G03G2221/166 , G03G2221/1684 , G03G2221/1869 , G03G2221/1884

8. 发明授权

EP3407141B1 PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS 有权
公开(公告)号：EP3407141B1
公开(公告)日：2020-06-24
申请号：EP18176454.9
申请日：2013-12-13
申请人： CANON KABUSHIKI KAISHA
发明人： MAESHIMA, Hideki , TANABE, Masato , NOMURA, Keisuke , SHIMIZU, Hiroki
IPC分类号： G03G21/18

9. 发明公开

EP3379339A1 PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS 有权
公开(公告)号：EP3379339A1
公开(公告)日：2018-09-26
申请号：EP18166572.0
申请日：2013-12-13
申请人： CANON KABUSHIKI KAISHA
发明人： MAESHIMA, Hideki , HIRUKAWA, Kuniaki , GOFUKU, Shuichi , MITSUI, Yoshihiro
IPC分类号： G03G15/08 , G03G21/18
摘要： A process cartridge detachably mountable to a main assembly of an image forming apparatus, said process cartridge comprising: a photosensitive drum; a rotatable developing roller configured to develop an electrostatic latent image formed on said photosensitive drum; a rotatable developer supplying roller provided in contact with said developing roller and configured to supply a developer to said developing roller; a developer accommodating chamber configured to accommodate the developer; a developing chamber in which said developer supplying roller is provided; a rotatable feeding member provided in said developer accommodating chamber and configured to feed the developer from said developer accommodating chamber into said developing chamber by moving the developer upwardly against a gravity; a driving force receiving portion provided on said developer supplying roller and configured to receive from an outside of said process cartridge a driving force for rotating said developer supplying roller, said developing roller and said feeding member; a first driving force transmitting portion provided on said developer supplying roller and configured to transmit the driving force received by said driving force receiving portion to said developing roller; and a second driving force transmitting portion provided on said developing roller in engagement with said first driving force transmitting portion to transmit the driving force from said first driving force transmitting portion to said developing roller, wherein said developer supplying roller and said developing roller are rotatable such that surfaces of said developer supplying roller and said developing roller move from a contact portion therebetween toward a bottom of said developing chamber, and wherein a peripheral speed of the surface of said developer supplying roller is higher than that of said developing roller.

10. 发明授权

EP3379339B1 PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS 有权
公开(公告)号：EP3379339B1
公开(公告)日：2020-02-12
申请号：EP18166572.0
申请日：2013-12-13
申请人： CANON KABUSHIKI KAISHA
发明人： MAESHIMA, Hideki , HIRUKAWA, Kuniaki , GOFUKU, Shuichi , MITSUI, Yoshihiro
IPC分类号： G03G15/08 , G03G21/18

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