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1. 发明专利

JP2002120942A SHEET HOUSING METHOD, SHEET PACKING BOX AND SHEET HOUSING DEVICE 失效
公开(公告)号：JP2002120942A
公开(公告)日：2002-04-23
申请号：JP2000316738
申请日：2000-10-17
申请人： CANON KK
发明人： MIYAKE HIROAKI
IPC分类号： B65D5/54 , B65H1/26 , B65H1/30 , B65H3/46
摘要： PROBLEM TO BE SOLVED: To provide a sheet housing method for simply and easily replenishing a sheet to a sheet housing device. SOLUTION: When housing sheet bundle housed in an out-fitting box 21 in a paper deck 2, the following procedure is undergone: (1) a sealing tape 22 of the out-fitting box 21 is torn off; (2) one surface of the out-fitting box 21 is removed along perforations, and a paper in the out-fitting box 21 is partially exposed at this time; (3) a housing magazine 3 is taken out to this side, and a front cover 11 is opened; (4) a paper exposed part (a surface) is set so as to butt against a side regulating plate (the inmost side) 115 of the housing magazine by completion of the procedure (2); (5) only the out-fitting box 21 is pulled out of this side surface, and at this time, a lifter 16 is inclined so that the side regulating plate (front) 13 side becomes high, and only a paper part is pressed down by a rear end restricting plate 31; and (6) the front cover 11 is closed, and the housing magazine 3 is set in a deck frame body 4 to complete replenishment of the paper.

2. 发明专利

JP2000219384A SHEET CARRIER AND IMAGE FORMING DEVICE FURNISHED WITH THE SAME 失效
公开(公告)号：JP2000219384A
公开(公告)日：2000-08-08
申请号：JP2440499
申请日：1999-02-01
申请人： CANON KK
发明人： MIYAKE HIROAKI
IPC分类号： B65H29/58 , B65H29/12 , B65H85/00 , G03G15/23
摘要： PROBLEM TO BE SOLVED: To increase sheet carrier speed and to correct timing to deliver a sheet. SOLUTION: This sheet carrier 1 is furnished with a sheet constant speed carrier means 25 to carry a sheet at specified speed, a sheet carrier passage to guide the sheet to be carried by the sheet constant speed carrier means, sheet reversing rotor pairs 59, 60 to reverse the sheet carried in the sheet carrier passage by reversely rotating after it normaly rotates and carries the sheet to the downstream side, reversed sheet carrier passages 64, 50 branched from the sheet carrier passage to guide the sheet to be reversed by the sheet reversing rotor pairs, a rear end detection means 62 arranged between the sheet constant speed carrier means and the sheet reversing rotor pairs and to detect a rear end of the sheet to be carried in the sheet carrier passage and a control means to rotationally control the sheet reversing rotor pairs so as to carry the sheet at higher speed than the specified speed when the rear end detection means detects the rear end of the sheet.

3. 发明专利

JP2000118737A PAPER FEEDING DEVICE AND IMAGE FORMING DEVICE EQUIPPED WITH IT 失效
公开(公告)号：JP2000118737A
公开(公告)日：2000-04-25
申请号：JP29587298
申请日：1998-10-16
申请人： CANON KK
发明人： MIYAKE HIROAKI
IPC分类号： B65H1/14 , B65H1/26
摘要： PROBLEM TO BE SOLVED: To enhance the durability of a paper feeding device by preventing abnormal sound at the time of pulling out a sheet storage casing. SOLUTION: This paper feeding device is equipped with a sheet stacking body liftably provided within a sheet storage casing detachable from a body and used for stacking sheets, an elevator body 16 installed on the body for elevating the sheet stacking body via an ingress and retreat from the sheet, and a drive body 120 engaged with a driven body 117 laid on the elevator body 16 for the operation thereof. Furthermore, the elevator body is installed on the body movable in mounting and demounting directions of the sheet storage casing when the sheet storage casing is pulled out of the body with the elevator body staying in the sheet storage casing for the disengagement of the driven body 117. Also, the end parts of the driven body 117 opposite to each other in the disengagement state of the driven body 117 and the drive boy are formed out of an elastic body 117a.

4. 发明专利

JPH1165301A DESTATICIZING MEANS AND IMAGE FORMING DEVICE 失效
公开(公告)号：JPH1165301A
公开(公告)日：1999-03-05
申请号：JP22249197
申请日：1997-08-19
申请人： CANON KK
发明人： MIYAKE HIROAKI
IPC分类号： G03G15/14
摘要： PROBLEM TO BE SOLVED: To obtain a destaticizing means capable of preventing collision even if a stiff sheet such as a postal card pushes down a transfer roller by disposing destaticizing members not in the central part of a holder corresponding to a small-sized sheet such as the postal card, but on both sides of holder. SOLUTION: The destaticizing means 10 is provided in a part nearer to the downstream side in the carrying direction of a sheet than the transfer roller 6. In the destaticizing means 10, the destaticizing members are disposed not in the central part of the holder corresponding to the small-sized sheet such as the postal card, but on both sides of the holder. In other words, in the shape of the destaticizing means 10, it is not uniform in an axial direction, that is, a longitudinal direction and further, a destaticizing needle is not arranged in a position corresponding to the small-sized sheet such as an envelope and the postal card. In such a case, a part 10a where the destaticizing needle is not arranged is formed in the position corresponding to the small-sized sheet such as the envelope. Thus, the catching/jamming in the destaticizing means 10, of a cardboard such as the stiff envelope and postal card, caused by the fact that it pushes down the transfer roller 6 can be prevented.

5. 发明专利

JPH08175683A SHEET FEEDING DEVICE AND IMAGE FORMING DEVICE 失效
公开(公告)号：JPH08175683A
公开(公告)日：1996-07-09
申请号：JP32657094
申请日：1994-12-28
申请人： CANON KK
发明人： IWAMOTO KAZUYUKI , MIYAKE HIROAKI , NADA MINORU
IPC分类号： G03G15/00 , B65H1/14
摘要： PURPOSE: To provide a sheet feeding device which reduces impact noise during ascending of a lifter and has a lifter mechanism being low in noise. CONSTITUTION: In a lifter mechanism which raises and lowers a sheet loading plate provided in a sheet cassette to maintain the height of the upper face of paper sheets about constant, the lifter mechanism has a lifter for vertically moving the sheet loading plate; a ratchet gear 20 provided unitedly with the lifter; a lift arm pawl 13 having a pawl part 16 which engages with the ratchet gear 20 to raise the lifter; a lift-up cam 11 to oscillate the lift arm pawl 13; and a lift lock pawl 21 to prevent the reverse rotation of the ratchet gear 20. The pawl part 16 of the lift arm pawl 13 is composed so as to be oscillatable about an rotation center different from that for the oscillation of the lift arm pawl 13.

6. 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.

7. 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.

8. 发明专利

JPH05197321A PHOTOSENSITIVE BODY, ELECTROPHOTOGRAPHIC DEVICE PROVIDED WITH THE SAME AND PROCESS CARTRIDGE ATTACHABLE TO/ DETACHABLE FROM THE DEVICE 失效
公开(公告)号：JPH05197321A
公开(公告)日：1993-08-06
申请号：JP20140192
申请日：1992-07-28
申请人： CANON KK
发明人： YOSHIHARA YOSHIYUKI , ANAYAMA HIDEKI , SONOYA HIDEYUKI , HANAMI NOBUYUKI , KISHI JUNICHI , HIRANO HIDETOSHI , GOTO MASAHIRO , TAKANO MANABU , MATSUDA KENJI , MIYAKE HIROAKI , ISHIHARA TOMOJI , KOYAMA HIROSHI
IPC分类号： G03G5/04 , G03G15/00 , G03G21/00 , G03G21/16
摘要： PURPOSE:To obtain a process cartridge which suppresses the vibration of a photosensitive body to reduce charging sounds and prevents the uneveness of the cycle by setting the weight per unit volume of the photosensitive body to a specific value or above. CONSTITUTION:With respect to the voltage applied to a core bar 4a of an electrifying roll 4 by a power source 25, the oscillating voltage where an AC voltage is superposed on a DC voltage is preferable. The charging sound generating mechanism generated between an electrifying member and an electrophotographic sensitive body by applying the oscillating voltage is considered as the elastic oscillation of the photosensitive body due to the electrifying member. Consequently, it is thought that the oscillation absorbing effect is produced by adding the weight to the photosensitive body. In consideration of this phenomenon and the actual hearing effect, the weight to the overall volume (including a driving transmission part and a bearing part) of the photosensitive body is >=0.65g/cm preferably. Further, it is >=0.80g/cm preferably for the purpose of more stably obtaining the muting effect.

9. 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.

10. 发明专利

JPH05142922A IMAGE FORMING DEVICE 失效
公开(公告)号：JPH05142922A
公开(公告)日：1993-06-11
申请号：JP33276191
申请日：1991-11-22
申请人： CANON KK
发明人： MATSUDA KENJI , MIYAKE HIROAKI
IPC分类号： F16F15/10 , G03G15/02
摘要： PURPOSE:To provide an image forming device capable of suppressing the vibration of a body to be charged without occurring image deterioration such as image flowing and lowering charging sound even in the case of setting the frequency of A.C. voltage impressed to a conductive member at high. CONSTITUTION:In the image forming device provided with a contact electrifying device electrifying the surface of a cylindrical photosensitive drum (a body to be charged) 3 in prescribed potential by abutting an electrifying roller (a conductive member) 4 on the surface of the cylindrical photosensitive drum 3 and impressing voltage to the electrifying roller 4, a coil spring (a metallic member) 14 in inserted into the photosensitive drum 3 and is fixed on the photosensitive drum 3 in closed contact. Since the weight and rigidity of the photosensitive drum 3 is heightened by the coil spring 14, the characteristic frequency of the photosensitive drum 3 is heightened to suppress resonance of the photosensitive drum 3, and even in the case of setting the frequency of A.C. voltage impressed to the electrifying roller 4 at high, the charging sound is suppressed at low.

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