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61. 发明专利

JPS61260267A IMAGE FORMING DEVICE 失效
公开(公告)号：JPS61260267A
公开(公告)日：1986-11-18
申请号：JP10244885
申请日：1985-05-14
申请人： CANON KK
发明人： KASAMURA TOSHIRO , OZAWA TAKASHI , YAMAMOTO YASUYOSHI , OHASHI MASASHI , KIMURA AKIYOSHI , SASAKI NOBUKAZU , KOIKE MICHIRO , KUBOTA ATSUSHI , SHIRATORI TATSUYA , KUSUMOTO TOSHIHIKO
IPC分类号： G03G15/05 , G03G15/00 , G03G21/00
摘要： PURPOSE:To process rapidly and efficiently picture forming work and to improve the office work efficiency by transporting directly the transfer sheet from the sheet resupplying means to a sheet transporting part, collecting plural transfer sheets from the sheet resupplying means to the tray of a intermediate tray device, and thereafter, transporting to the sheet transporting part. CONSTITUTION:When double copying is executed for only one transfer sheet, the copying is started, then the transferred sheet discharged by a pair of discharging rollers 26 passes through the upper part of a flapper 29, and thereafter, receives the switching-back transporting action by a discharging roller 27, an auxiliary flapper 30, etc., based upon the signal from an optical sensor 32, and further, is introduced through a channel 33 and a sheet carrier 23 to a copying part 2. Next, when the multiple copying of the same picture contents is executed to plural transfer sheets, the copying is started, then the transferred sheet receives the switching-back transporting action by the sheet resupplying means of the flapper 29, etc., in the same way as the case that the double copying is executed for only one sheet, thereafter, is collected so that the transfer picture is directed in the upper direction 53 through a channel 33 and an immediate tray introducing channel 42 onto an immediate try 53, thereafter introduced to the copying part 2.

62. 发明专利

JPS61252562A IMAGE FORMING DEVICE 失效
公开(公告)号：JPS61252562A
公开(公告)日：1986-11-10
申请号：JP9468985
申请日：1985-05-02
申请人： CANON KK
发明人： SHIRATORI TATSUYA , OZAWA TAKASHI , YAMAMOTO YASUYOSHI , OHASHI MASASHI , KIMURA AKIYOSHI , SASAKI NOBUKAZU , KASAMURA TOSHIRO , KUBOTA ATSUSHI , KOIKE MICHIRO , KUSUMOTO TOSHIHIKO
IPC分类号： G03B27/52 , G03G15/00 , G03G21/00
摘要： PURPOSE:To prevent an image shift by making a transverse direction position of a transfer sheet which is led into an image forming part again coincide with the transverse direction position of the transfer sheet in the image forming process of the previous time, and correcting it by a position correcting means. CONSTITUTION:After a toner image is transferred, the transfer sheet S passes through between the light emitting part 65a and the light receiving part 65b of a photosensor 65 and is carried to a fixing part. In that case, the transverse direction position of an orthogonal direction to the carrying direction is detected and an electric signal corresponding thereto is stored in the storage part of a microprocessor unit MPU from the photosensor 65. At the time point when said position coincides with the transverse direction position of the transfer sheet S in case of copying of the first time stored in the MPU, a spring clutch 49 is cut off, a movement to the transverse direction of an upper roller 40a and a lower roller 40b is stopped and thereafter, by the rotational carrying action of the upper roller 40a and the lower roller 40b, which is continued for a prescribed time, the transfer sheet is carried from a sheet carrying part to a pair of resist rollers in a state that its transverse direction position is made to coincide correctly and corrected. In this way, an image shift phenomenon can be prevented effectively and the image having a good quality is formed.

63. 发明专利

JPS61243758A IMAGE FORMATION APPARATUS 失效
公开(公告)号：JPS61243758A
公开(公告)日：1986-10-30
申请号：JP8343485
申请日：1985-04-18
申请人： CANON KK
发明人： KUSUMOTO TOSHIHIKO , OZAWA TAKASHI , YAMAMOTO YASUYOSHI , OHASHI MASASHI , KIMURA AKIYOSHI , SASAKI NOBUKAZU , KASAMURA TOSHIRO , KUBOTA ATSUSHI , SHIRATORI TATSUYA , KOIKE MICHIRO
IPC分类号： B65H29/22 , B65H9/00 , B65H9/14 , B65H29/58
摘要： PURPOSE:To prevent damage of a sheet and occurrence of a jam due to overload by slipping torque limiter means when overload is applied to a re- transported sheet to stop reversing of a pair of discharge rollers, and normally rotating the discharge rollers on detecting the slipping. CONSTITUTION:When a pair of discharge rollers 33 are reversed, if overload obstructing re-transporting a sheet to a copying machine body is applied to the sheet, further overload works upon the rotation of the paired rollers 33, and a disc 46 is slipped on a friction plate 52 rotated with a normal and reverse rotating DC motor 43 against the urging force of a spring 51 by working of overload, so that the discharge rollers 33 are stopped. The rotating cycle of the paired discharge rollers 33 is detected by a slip detecting sensor 47, and a detection signal is input to a control portion C. Further, the detected cycle is compared with a rotating cycle set at the control portion C. On judging that the sheet is normally re-transported, the motor 43 is changed from reversing condition to normally rotating condition, so that the sheet is completely discharged onto a bin tray. Then, the apparatus is restored to copy operation for the surface copy.

64. 发明专利

JP2000233842A DOCUMENT AUTOMATIC CARRYING DEVICE AND IMAGE FORMING DEVICE 失效
公开(公告)号：JP2000233842A
公开(公告)日：2000-08-29
申请号：JP3470799
申请日：1999-02-12
申请人： CANON KK
发明人： OKADA TAKAYUKI , KOIKE MICHIRO
IPC分类号： B65H5/02 , B65H5/36 , B65H29/60 , G03G15/00
摘要： PROBLEM TO BE SOLVED: To provide a document automatic carrying device and an image forming device, equipped with the device, and capable of keeping a gap constant between a carrying belt and a guide member even if the carrying belt is rocked. SOLUTION: In this document automatic carrying device carrying set-up documents to a prescribed position by a carrying belt for delivering them, the device is provided with a carrying belt 31 for carrying documents, and with a feeding intermediate guide member 29 to be mounted rotatably, in such a way as to let its revolution tip end part abut against a supporting member provided at both the sides of the carrying belt in the revolution axial direction so as to be positioned, wherein one side of the revolving shaft of the carrying belt 31 is supported so as to be rockable, and one side of the revolving root part of the guide member 29 is so constituted that it can be rocked in such a way that the guide member 29 follows up the rocking of the carrying belt 31.

65. 发明专利

JPH10236678A SHEET FEEDING DEVICE, AND IMAGE READING DEVICE AND IMAGE FORMING DEVICE EQUIPPED WITH IT 失效
公开(公告)号：JPH10236678A
公开(公告)日：1998-09-08
申请号：JP14069197
申请日：1997-05-29
申请人： CANON KK
发明人： KOIKE MICHIRO , UEDA NORIYOSHI
IPC分类号： B65H3/04 , B65H3/12 , B65H3/48 , B65H7/16 , G03G15/00
摘要： PROBLEM TO BE SOLVED: To provide an automatic document sheet feeding device equipped with an air separating/feeding mechanism, with which a high speed movement of a bundle of document sheets to the separation position can be established without risk of disturbing the bundle of document sheets. SOLUTION: A document sheet feeding device is equipped both with a frictional separating/feeding means and an air separating/feeding means. The air separating/feeding means is used in sheet feeding based upon the closed loop path system, while the frictional separating/feeding means is used in sheet feeding based upon the switch-back path system. To quicken the movement of the bundle of document sheets, the movement of the document by pushing it with a shutter 41 is associated with a synchronous rotation of a suction belt 7. The thickness of the document bundle is sensed by a sensing mechanism 200 before the document reaches the specified separating position, and in advance the air blowing is started in a wind quantity in accordance with the sensing result (document bundle thickness).

66. 发明专利

JPH10194491A SHEET FEEDING DEVICE, IMAGE FORMING DEVICE AND IMAGE READING DEVICE 失效
公开(公告)号：JPH10194491A
公开(公告)日：1998-07-28
申请号：JP35866096
申请日：1996-12-28
申请人： CANON KK
发明人： NAKANE YOSHIMITSU , KOIKE MICHIRO
IPC分类号： G03G15/00 , B65H3/12 , B65H3/48
摘要： PROBLEM TO BE SOLVED: To constantly and stably carry out floating of a sheet concerning feeding and smoothly carry out separation and carriage of the sheet even in the case when the sheets different in sizes from each other are, for example, mixed and placed on a sheet tray. SOLUTION: Sheets are floated from loading surfaces 11, 12 by blowing air to a right side end S4 of the sheet S loaded on a sheet tray 10, and they are sucked, separated and carried by a feeding belt with the sheet S on the lowest level at first. In the case when the large sheet SL and the small sheet different in size are mixed and loaded, the numbers of the sheets S (overall thickness) on the loading surface 11 on the sheet head end side and the loading surface 12 on the sheet rear end side are different from each other. Floating quantity of the sheet S rear end part from the loading surface 11 is detected by a floating sensor 60, and a CPU 70 regulates an air flow rate toward the arrow B direction from a second blowout part 32 independently from a first blowout part 31 by actuating an air flow rate regulating means 50 in accordance with its detection result.

67. 发明专利

JPH10147446A PAPER FEEDING DEVICE AND IMAGE FORMING DEVICE THEREWITH 失效
公开(公告)号：JPH10147446A
公开(公告)日：1998-06-02
申请号：JP30967496
申请日：1996-11-20
申请人： CANON KK
发明人： NOJIMA KOJI , KOIKE MICHIRO
IPC分类号： B65H3/46 , B65H3/48 , B65H3/56
摘要： PROBLEM TO BE SOLVED: To provide an air paper feeding device which prevents double feeding and jamming. SOLUTION: A brush 170 is provided on the lower end of a top end limiting plate 101. Because the brush 170 is provided, a document S1 on a tray 100 will not reach the downstream side unexpectedly from the top end limiting plate 101. When a coarse brush is used as the brush 170, air spray by a spray nozzle 149 is not obstructed. Also, when the top end of the brush 170 is brought in contact with a paper feeding belt 142, the paper feeding belt 142 is cleaned.

68. 发明专利

JPH09315602A AUTOMATIC DOCUMENT TRANSPORTING DEVICE, AND IMAGE FORMING DEVICE 失效
公开(公告)号：JPH09315602A
公开(公告)日：1997-12-09
申请号：JP12745296
申请日：1996-05-22
申请人： CANON KK
发明人： KOIKE MICHIRO
IPC分类号： G03G15/00 , B65H3/12 , B65H3/48
摘要： PROBLEM TO BE SOLVED: To more prevent document from being damaged and stained while keeping high productivity, by adopting a separating and feeding means, using separating air blowing off from an adsorbing belt and a separating nozzle, to make the skim-through reading and fixed-position reading of a sheet document doubling. SOLUTION: One end in a carrying direction of plural sheet document is regulated by a rear end regulating means 415 while separating air is blown off, by an air knife means 428 in the other end, to the other end of plural sheet documents P loaded on a sheet loading mount 2. Sheet documents P in the lowermost part of the plural sheet documents P are separated from the other plural sheet cocuments, and by normally rotating of a vacuum feeding means 5, for both normal/reverse rotation, carried to a skim-through reading carrying pass, to be led to a reading position by skim-through reading.

69. 发明专利

JPH08113433A SHEET FEEDING DEVICE AND IMAGE FORMING DEVICE 失效
公开(公告)号：JPH08113433A
公开(公告)日：1996-05-07
申请号：JP27444294
申请日：1994-10-13
申请人： CANON KK
发明人： KOIKE MICHIRO , NAKANE YOSHIMITSU
IPC分类号： G03G15/00 , B65H1/04 , B65H3/12 , B65H3/48 , B65H85/00
摘要： PURPOSE: To surely separate large size sheets, which are placed on an intermediate tray and longitudinally fed, by means of air flow blowing from a sheet tip side. CONSTITUTION: On a sheet tray 200, a rear end side supporting plate 257 which ca be moved in the sheet feeding direction is arranged in a rear end regulating unit 252 regulating a rear end position of a sheet When the number of sheets placed on the sheet tray 200 exceeds that at the predetermined load capacity, the plate 257 is projected forward by the predetermined quantity beyond a front plate 252-1 of a unit main body in the rear end regulating unit 252, and by means of this plate 257, the rear end sides of the sheets in the part exceeding the predetermined load capacity are supported. The plate 257 is projected forward when a pinion gear 256 gearing with a rack 258 on the plate 257 lower face is rotated clockwise.

70. 发明专利

JPH07140864A SEPARATOR AND IMAGE FORMING DEVICE USING THE SAME 失效
公开(公告)号：JPH07140864A
公开(公告)日：1995-06-02
申请号：JP15905093
申请日：1993-06-29
申请人： CANON KK
发明人： KOIKE MICHIRO
IPC分类号： G03G15/09 , G03G15/08 , G03G21/10
摘要： PURPOSE:To easily remove the foreign matter of paper powder, metallic pieces, etc., at the time of maintenance by constituting two magnetic force generating means facing each other across a mesh filter so as to separate from each other on the filter as a boundary. CONSTITUTION:The developer recovered from an image carrier by a cleaning device and the foreign matter are replenished to the side of a sleeve in a separating device 17 by a carrying screw 24. Then, the recovered developer and the foreign matter are stuck to the surface of a, sleeve 20 to be carried upward following its rotation, regulated to a prescribed layer thickness by a doctor blade 26 and fed to a separating part where the sleeves 20 and 19 facing each other across a mesh 18. The developer and foreign matter fed to the separating part facing the sleeve 19 across the mesh 18 by the sleeve 20 are efficiently attracted by a convergence line of magnetic force extending to a magnetic pole N19 on the side of the sleeve 19 from a magnetic pole S20 on the side of the sleeve 20 and only the developer is attracted to the sleeve 19 via the mesh 18.

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