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61. 发明专利

JPH0943926A TONER FRAME, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHY IMAGE FORMING DEVICE 失效
公开(公告)号：JPH0943926A
公开(公告)日：1997-02-14
申请号：JP21544695
申请日：1995-07-31
申请人： CANON KK
发明人： MIYABE SHIGEO , NOMURA YOSHIYA , YOKOMORI KANJI
IPC分类号： G03G15/00 , G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide performance similar to that in the case of an ordinary toner quantity without increasing cost even in the case of a large toner quantity by forming a toner lower frame body so as to escape from the rotational territory of a toner feed member for sending out toner in a toner storing part. SOLUTION: A slope K of a lower frame body 11b of a toner frame body 11 is provided with inclination θ naturally falling when toner is consumed. Further a rotational territory at a toner feed member 9b reaches below the slope K. Consequently, the lower frame body 11b is provided with a recessed part 11g on the lower part so as to escape from the rotational territory of the toner feed member 9b. Namely, the toner frame body 11 is formed into two body construction of the upper frame body 11a and the lower frame body 11b, and by providing the recessed part 11g for escaping from the toner feed member 9b on the bottom face of the lower frame body 11b, stable toner feed performance is obtained without increasing cost even if it is a process cartridge of large capacity.

62. 发明专利

JPH08339154A PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC IMAGE FORMING DEVICE 失效
公开(公告)号：JPH08339154A
公开(公告)日：1996-12-24
申请号：JP9369195
申请日：1995-04-19
申请人： CANON KK
发明人： ISOBE HIROYUKI , KUBOTA ATSUSHI , MIYABE SHIGEO , NOMURA YOSHIYA , YOKOMORI KANJI
IPC分类号： G03G15/02 , G03G15/08 , G03G21/10 , G03G21/18
摘要： PURPOSE: To improve the attach/detaching operability and the positioning precision to the device main body of a process cartridge, by respectively providing the first and second projecting parts, a control contact part, and the control release part on one side end and the other end of a cartridge frame. CONSTITUTION: Guide means are composed of a dowel 13a, a longitudinal guide 12a and a lateral guide 12b, arranged on a side face and the other side face as shown by with figure, in the same shape and in the same position, and composed so as to project from the equal plane of a cleaning frame body and the developing frame body at approximately the same height. Moreover, the control contact part 13e and the release contact part 13f are respectively provided at the one side end and the other side end in the direction orthogonal to the attach/detaching direction on the upper surface of the cleaning unit C. Then, at the time of attaching the process cartridge B, the control contact part 13e is held in contact with the first fixing section of the main body, and allowed to position the process cartridge B to the main body in cooperation with guide means. Furthermore, the release contact part 13f is held in contact with the second fixing section of the main body that becomes a turning fulcrum at the time of detaching.

63. 发明专利

JPH08314353A IMAGE FORMING DEVICE AND PROCESS CARTRIDGE THEREFOR 失效
公开(公告)号：JPH08314353A
公开(公告)日：1996-11-29
申请号：JP14009695
申请日：1995-05-16
申请人： CANON KK
发明人： YOKOMORI KANJI , NOMURA YOSHIYA
IPC分类号： G03G21/10 , G03G15/08 , G03G15/14 , G03G21/16 , G03G21/18
摘要： PURPOSE: To prevent a transfer material to be fed from a transfer part to a fixing part which carrying an unfixed toner image from coming into contact with a cartridge while it is being fed by forming a projecting part at the edge of a scooping sheet for receiving recovered toner on an opposite side to the edge thereof abutting on an image carrier. CONSTITUTION: When residual toner remaining on the image carrier 7 while does not contribute to transfer at the transfer part reaches a cleaning part with the rotative traveling of the image carrier 7, it is scraped by a cleaning blade 13a, scooped by the scooping sheet 13b and stored in a toner storing part on the inner side. The projecting part 13b-1 having an acute top is formed on the side of the sheet 13b opposite to the side abutting on the image carrier 7. Thus, even when the trailing edge part of the transfer material leaps because of curl in the case the transfer material separated from the image carrier 7 after finishing the transfer advances toward a fixing device, it is restrained by the projected part 13b-1, and the occurrence of irregularities in an image caused by rubbing on the base of the cartridge is avoided.

64. 发明专利

JPH08114962A DEVELOPING DEVICE, PROCESS CARTRIDGE AND IMAGE FORMING DEVICE 失效
公开(公告)号：JPH08114962A
公开(公告)日：1996-05-07
申请号：JP25038294
申请日：1994-10-17
申请人： CANON KK
发明人： NOMURA YOSHIYA , YOKOMORI KANJI
IPC分类号： G03G15/00 , G03G21/18
摘要： PURPOSE: To enable a sure feeding of toner into a developing chamber even if a special carrying mechanism is not provided by inclinedly forming first and second drop surfaces in a toner container. CONSTITUTION: The toner container 11 is constituted in such a manner that a container main body 11a being a first container part and a cover member 11b being a second container part are integrated by welding. The main body 11a is opened on the top surface, that is, in the shape of what is called, a bathtub and the bottom face constitutes the first fall down face 11c inclined to a developing roller 9c, when the main body 11a is fitted to a developing frame 12. In a part of the side of the frame 12, the second drop surface 11f consisting of a projection surface projecting into the main body 11a is formed and a recessed part 11g is formed on the outside surface of the cover member 11b by the drop surface 11f. The second drop surface 11f is inclined toward the toner discharge opening 11d of the main body 11a. Then, a tool for welding such as a receiving base for welding can be inserted from the recessed part 11g.

65. 发明专利

JPH0876555A ELECTRIFYING DEVICE 失效
公开(公告)号：JPH0876555A
公开(公告)日：1996-03-22
申请号：JP23436994
申请日：1994-09-02
申请人： CANON KK
发明人： NOMURA YOSHIYA
IPC分类号： G03G15/02
摘要： PURPOSE: To realize good electrification with a simple constitution in the electrifying device of an image forming device. CONSTITUTION: An electrode 2 is arranged in contact with the surface of a photoreceptor 1 rotating in a direction shown by an arrow R1. The electrode 2 is constituted by attaching a conductive film 2b whose resistance value is adjusted to a metallic sheet. The electrode 2 is pressed toward the photoreceptor 1 by a compression spring 2d. Thus, a gap between the film 2b and the surface of the photoreceptor 1 is accurately kept by a space keeping film 2c and a protruding part 22. The constitution is simple, and electrification ability is good.

66. 发明专利

JPH06317959A IMAGE FORMING DEVICE 失效
公开(公告)号：JPH06317959A
公开(公告)日：1994-11-15
申请号：JP12316393
申请日：1993-04-28
申请人： CANON KK
发明人： NOMURA YOSHIYA , TSUCHITANI YOSHIRO , SUGIURA YOSHINORI
IPC分类号： G03G15/00 , G03G21/16 , G03G21/18
摘要： PURPOSE:To insert a cartridge without receiving load from a pressing means by providing the pressing means pressing the cartridge when an opening and closing member is closed and releasing the pressing of the cartridge when the opening and closing member is opened. CONSTITUTION:An upper opening and closing cover 16b is opened and the process cartridge is inserted along guide parts 7a and 7b. When the cover 16b is closed, the upper surface of the cartridge is pressed by the pressing member 18a provided on the inner top panel of the cover 16b. Simultaneously, the projections 1a1 and 1a2 of a frame body abut on the abutting parts 7b1 and 7b2 of the guide part 7b. Then, the cartridge is positioned and the rotation thereof is regulated. Besides, a leaf spring 18b is fitted to a frame near the turning center of the cover 16b. Since a distance between a supporting point P1 and a point to which force is applied P3 where the spring 18b is pressed is longer than the distance between the supporting point P1 and the point of application P2 where the cartridge is pressed, the cartridge can be pressed by the spring 18b by small power. Therefore, the load added on the cover 16b is reduced.

67. 发明专利

JPH06314026A PROCESS CARTRIDGE, IMAGE FORMING DEVICE AND TONER TAPE ATTACHING METHOD IN PROCESS CARTRIDGE 失效
公开(公告)号：JPH06314026A
公开(公告)日：1994-11-08
申请号：JP12322793
申请日：1993-04-28
申请人： CANON KK
发明人： MATSUDA KENJI , KAWAGUCHI HIDEJI , NOMURA YOSHIYA , MIYAKE HIROAKI , SUGIURA YOSHINORI
IPC分类号： G03G21/18 , G03G15/00 , G03G15/08
摘要： PURPOSE:To provide a process cartridge having a sealing constitution not for tearing a toner tape at the time of pulling out it and not for leaking toner from a toner tape exposing part. CONSTITUTION:In the process cartridge capable of being fitted to an image forming device main body, a frame, an image carrier, a developing means, a toner housing means housing the toner supplied to the developing means, an opening 12a for supplying the toner housed in the toner housing means to the developing means, the toner tape 25 detachably attached to the opening 12a so as to seal it, a gap provided on the frame to pull out the toner tape 25 and an elastic sealing member S8 provided in contact with the toner tape so as not to leak the toner from the gap are provided. At the time of pulling out the toner tape 25, the toner tape 25 is prevented from coming into contact with the end part of the elastic sealing member 8.

68. 发明专利

JPH05323694A PROCESS CARTRIDGE AND IMAGE FORMING DEVICE 失效
公开(公告)号：JPH05323694A
公开(公告)日：1993-12-07
申请号：JP12729692
申请日：1992-05-20
申请人： CANON KK
发明人： HIGETA AKIRA , NOMURA YOSHIYA , MIYAKE HIROAKI , ISOBE HIROYUKI , KOBAYASHI HIROO , MIURA KOJI , SHISHIDO KAZUO , SATO MINORU , MATSUDA KENJI
IPC分类号： G03G15/02 , G03G15/00
摘要： PURPOSE:To obtain a high-quality image by preventing an image carrier from being deteriorated and the surface layer material of an electrostatic charging device from adhering to the image carrier without necessitating a dedicated shutter even when it is left as a simple substance for a long time. CONSTITUTION:As for a process cartridge 100, the shaft 2a of an electrostatic charging roller 2 is selectively fitted in the recessed part 15a of a leaf spring 15 and the recessed part 14a of a holding member 14 by an attaching/detaching bar 16 (attaching/detaching means). By fitting the shaft 2a of the roller 2 in the recessed part 14a of the member 14 when the cartridge 100 is detached from an image forming device main body, the roller 2 is separated from a photosensitive drum(image carrier) 1 and closes an optical path 32. By fitting the shaft 2a of the roller 2 in the recessed part 15a of the spring 15 when the cartridge 100 is attached in the image forming device main body, the roller 2 is allowed to abut on the drum 1.

69. 发明专利

JPH05303263A 失效
公开(公告)号：JPH05303263A
公开(公告)日：1993-11-16
申请号：JP13619292
申请日：1992-04-27
申请人： CANON KK
发明人： HIGETA AKIRA , NOMURA YOSHIYA , SASAKI SHINICHI
IPC分类号： G03G15/02 , G03G15/00
摘要： PURPOSE:To surely feed power to an electrostatic charging member which comes into contact and electrostatically charges a photosensitive drum. CONSTITUTION:An electrostatic charging roller 30 is brought into contact with the photosensitive drum. The shaft center 31 of the roller 30 is turnably supported by a bearing 35, and energizes the photosensitive drum 21 by a spring 36. The bearing 35 and the spring 36 are constituted of a conductive member. The power is fed to the roller 30 by an electrode 40 connected to a power source 38. In such a case, a 1st feed path constituted by bringing the leading edge 40a of the electrode 40 directly into contact with the end face 31a of a core bar 31 and a 2nd feed path which leads to the core bar 31 from the electrode 40 through the spring 36 and the bearing 35 are provided, and the power is fed to the roller 30 via both paths. Even when one feed path is faulty, the power is surely fed by the other.

70. 发明专利

JPH05173419A DEVELOPER FEEDING DEVICE AND PROCESSING CARTRIDGE 失效
公开(公告)号：JPH05173419A
公开(公告)日：1993-07-13
申请号：JP5027591
申请日：1991-02-25
申请人： CANON KK
发明人： SATO MINORU , MIYAKE HIROAKI , NOMURA YOSHIYA , SHISHIDO KAZUO
IPC分类号： G03G15/08 , G03G15/00
摘要： PURPOSE:To prevent scattering of developer at the time of refill of the developer to a developer container in a developing device and to solve the problems of adverse influence, etc., to an image due to the scattered developer. CONSTITUTION:A hole selectively faced to an opening 9 is formed on a sealing member 12 sealing the opening 9 of a toner container 5. Therefore, the opening 9 can be opened and closed by moving the sealing member 12 and when toner (t) is refilled to the toner container 5, the opening 9 can be kept closed, preventing the scattering of the toner (t) at the time of refill and various inconveniences due to scattering of the toner (t) can be solved.

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