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1. 发明专利

JP2003107945A FIXING DEVICE 审中-公开
公开(公告)号：JP2003107945A
公开(公告)日：2003-04-11
申请号：JP2001301893
申请日：2001-09-28
申请人： CANON KK
发明人： SHIRAI MASASHIGE
IPC分类号： G03G15/20 , B65H5/22 , G03G15/00
摘要： PROBLEM TO BE SOLVED: To provide a fixing device capable of realizing the improvement of durability and reliability and the facilitation of maintenance. SOLUTION: This fixing device 1 where an unfixed toner image on recording paper P is fixed on the recording paper P while it is held and carried by a fixing roller (heating means) 2 and a pressure roller (pressure means) 4 is provided with a suction roller (sucking and carrying means) sucking and carrying the transfer paper P immediately after fixing in the vicinity on the downstream side of a nip part formed by the rollers 2 and 4 in a carrying direction.

2. 发明专利

JPH0986699A SHEET FEEDER AND IMAGE FORMING DEVICE PROVIDED WITH THE SHEET FEEDER 失效
公开(公告)号：JPH0986699A
公开(公告)日：1997-03-31
申请号：JP25160895
申请日：1995-09-28
申请人： CANON KK
发明人： SHIRAI MASASHIGE
IPC分类号： G03G15/00 , B65H3/12 , B65H3/48
摘要： PROBLEM TO BE SOLVED: To provide a sheet feeder capable of performing a sure sheet feed by eliminating generation of an improper paper feed regardless of sheet size, sheet kind (weighing amount, thickness) and presence of a curl on a sheet feed direction tip end side, without regulating the feed direction rear end of a sheet loaded on a sheet tray. SOLUTION: Of a plurality of sheets S loaded on a sheet tray 100, the sheet in the lowermost part is fed in a condition vacuum sucked by a feed belt 104 provided with a plurality of through holes. Here, a position on a width direction side-surface side of the sheet on the sheet tray 100 is regulated by regulating means 120, 121. In the sheet on the sheet tray 100, a flow of air from the one width direction side-surface side toward the other is injected from a nozzle 105. The sheet sucked to the feed belt 104 is separated from the other sheet by injection air from this nozzle 105.

3. 发明专利

JPH08169648A SHEET DISCHARGER AND IMAGE FORMING DEVICE 失效
公开(公告)号：JPH08169648A
公开(公告)日：1996-07-02
申请号：JP31670794
申请日：1994-12-20
申请人： CANON KK
发明人： SHIRAI MASASHIGE
IPC分类号： B41J13/00 , B41J13/02 , B65H9/16 , B65H85/00 , G03G15/00
摘要： PURPOSE: To make improvements in the stackability of sheets on an intermediate tray. CONSTITUTION: Six vertical guide members 42A, 42B, 43A, 43B, 44A, 44B forming a part of the whole seat conveyor route and conveyor roller pairs 45, 46, 47, 48 forming those of first, second, third, fourth discharge ports a, b, c, d are alternately set up on the sheet conveyor route being formed almost linearly. In addition, the conveyor roller pair 46 and both these vertical guide members 42A, 42B are made so as to be integrally retractable by a solenoid 61, and the conveyor roller pair 47 and both the vertical guide members 43A, 43B integrally by a solenoid 62, and also the conveyor roller pair 48 and both the vertical guide members 44A, 44B integrally by a solenoid 63 from on the sheet conveyor route, respectively.

4. 发明专利

JPH0844236A FIXING DEVICE 失效
公开(公告)号：JPH0844236A
公开(公告)日：1996-02-16
申请号：JP19459194
申请日：1994-07-28
申请人： CANON KK
发明人： SHIRAI MASASHIGE
IPC分类号： G03G15/20 , G03G21/16
摘要： PURPOSE:To provide a fixing device capable of easily removing the core metal of a heating roller without any damage. CONSTITUTION:A U-shaped fitting opening part opened on the side of a press- contact part with a pressure roller 13 is provided on the frame body 11 of an upper fixing unit 1, the bearing 5 of a heating roller 3 is fitted into the fitting opening part and a part of the outer periphery of the bearing 5 is supported by the hook part 21 of the frame body 11. Moreover, the upper fixing unit 1 is supported to open/close centering a pivotally supporting shaft 9 with respect to a lower fixing unit 2 by which the roller 13 is supported and further, the bearing 5 is held by a bearing holder 22 as a bar-shaped elastic member which is supported by the frame body 11 of the upper fixing unit 1 on one end and freely removably engaged with the projecting part of the frame body 11 on the other end.

5. 发明专利

JPH0792887A SEALING MEMBER, PROCESS CARTRIDGE, IMAGE FORMING DEVICE AND METHOD FOR ASSEMBLING PROCESS CARTRIDGE 失效
公开(公告)号：JPH0792887A
公开(公告)日：1995-04-07
申请号：JP16146194
申请日：1994-07-13
申请人： CANON KK
发明人： SHIRAI MASASHIGE
IPC分类号： G03G21/10 , G03G15/08 , G03G21/18
摘要： PURPOSE:To provide a sealing member, a process cartridge, an image forming device and a method for assembling a process cartridge by which the sealing material is easily attached/detached. CONSTITUTION:This sealing member is used for the process cartridge having a cartridge frame body 12, an image carrier 7 installed in the frame body 12, and a processing means installed in the frame body 12 and acting on the image carrier 7, and prevents toner from being leaked from the frame body 12. It is provided with a holding member 17 having a locking part for detachably locking parts in the frame body 12, a 1st sealing material attached to the holding member 17 and capable of coming in contact with the 1st spot of the frame body 12 so as to prevent the toner from being leaked from the frame body 12, and a 2nd sealing material attached to the holding member 17 differently from the 1st sealing material and capable of coming in contact with the 2nd spot of the frame body 12 different from the 1st spot.

6. 发明专利

JPH0728352A FIXING DEVICE 失效
公开(公告)号：JPH0728352A
公开(公告)日：1995-01-31
申请号：JP17316393
申请日：1993-07-13
申请人： CANON KK
发明人： SHIRAI MASASHIGE
IPC分类号： B65H29/54 , G03G15/00 , G03G15/20
摘要： PURPOSE:To provide a fixing device capable of at least minimizing the damage of a pressure roller caused by a separating pawl. CONSTITUTION:In the fixing device provided with a fixing roller 1 and the pressure roller 3 rotating in the state of pressurized contact with each other and holding/pressing the transfer paper P to carry it to a press-contact part (nipping part) and the separating pawls 5 and 6 abutted on the outer peripheries of the fixing roller 1 and the pressure roller 3, projecting parts 5b and 6b projected into a carrying path in the downstream side in the carrying direction of the transfer paper P are provided. Thus, the leading edge part of the transfer paper P comes into contact with the projecting parts 5b and 6b of the separating pawls 5 and 6, so that the top ends 5c and 6c of the separating pawls 5 and 6 contacts/separates from the surfaces of the fixing roller 1 and the pressure roller 3, to minimize the damage of the fixing roller 1 and the pressure roller 3 caused by the separating pawls 5 and 6. Moreover, in a failure in the separation of the transfer paper P, force imparted to the separating pawls 5 and 6 can be reduced and especially, the top end of the separating pawl 6 never damages the surface of the pressure roller 3.

7. 发明专利

JPH0667542A DEVELOPING DEVICE 失效
公开(公告)号：JPH0667542A
公开(公告)日：1994-03-11
申请号：JP24416992
申请日：1992-08-20
申请人： CANON KK
发明人： SHIRAI MASASHIGE , NAGATSUKA CHIKATSU , OZAWA TAKASHI
IPC分类号： G03G15/08 , G03G15/09
摘要： PURPOSE:To always carry a stable quantity of developer by providing a developer carrying member which is displaced in accordance with the quantity of developer on a stirring means arranged in a hopper room. CONSTITUTION:The stirring means 1 arranged in the hopper room is constituted of a rotary shaft 2, plural arms 3 and a carrying member 5 rotatably supported by the supporting parts 4 of the arms 3, and also, the carrying member 5 is always pressed by the tension of an elastic member 6 in the direction of the rotary shaft 2. By having such a constitution, in the case that there is plenty of developer in the hopper room, the resistance of the developer is given to the carrying member 5, so that the carrying member 5 is rotated and shifted against the tension of the elastic member 6. Then, the carrying member 5 is displaced following with a stirring means 1 rotating direction, so that the developer carrying force is reduced, On the other hand, in the case that there is a little developer in the hopper room, the resistance given by the developer is low, so that the tension of the elastic member 6 becomes higher than the resistance of the developer, and the carrying member 5 is not rotated and shifted, then, the developer carrying force is increased.

8. 发明专利

JPH0477303B2 失效
公开(公告)号：JPH0477303B2
公开(公告)日：1992-12-08
申请号：JP9716483
申请日：1983-06-01
申请人： CANON KK
发明人： MURATA SHINJI , SUZUKI HIROAKI , SHIRAI MASASHIGE , KONUKI KAZUHIKO
IPC分类号： G03B27/50 , G03B27/32 , G03B27/52 , G03G15/04

9. 发明专利

JPH04115274A DEVELOPER REPLENISHING DEVICE 失效
公开(公告)号：JPH04115274A
公开(公告)日：1992-04-16
申请号：JP23451490
申请日：1990-09-06
申请人： CANON KK
发明人： SHIRAI MASASHIGE
IPC分类号： G03G15/08
摘要： PURPOSE:To prevent the pollution of a circumference caused by a developer by setting the length of a sealing member tow times as that of one side of the opening part of a developer housing container or above, simultaneously, fixing one end part of the member on the periphery of the opening part of the housing container, and attachably and detachably fixing the other part on a cover member. CONSTITUTION:The periphery of the opening part of a toner container 1 is fixed by the sealing member 3, and the opening part is covered with the member 3. The length of the member 3 is tow times that of the opening part of the container 1, the free part of the container 1 is folded three times, and then, threaded into the opening part 2a of the covering member 2 from the lower side. Then, the end part of the free part is attachably and detachably fixed on the top surface of the member 2 by an adhesive tape, etc. When toner is supplied, the member 2 is pulled out, then, the end part exposed outside the container 1 is peeled and pulled, and the opening part of the container 1 is opened, to discharge the toner T. When the toner T is completely discharged and the member 2 is pushed back inside the container 1, the member 3 is guided by the top end of the member 2, to be returned to an original state, and covers the whole of the opening part of the container 1. Thus, the pollution caused by the developer is prevented by using the member 3.

10. 发明专利

JPH0428634A PAPER SHEET FEEDER 失效
公开(公告)号：JPH0428634A
公开(公告)日：1992-01-31
申请号：JP13437490
申请日：1990-05-24
申请人： CANON KK
发明人： SHIRAI MASASHIGE
IPC分类号： B65H1/28
摘要： PURPOSE:To smooth transfer of sheets between loading racks by devising a paper sheet feeder of a copying machine or others using cassettes loading sheets on two parts so that a sheet separation unit retreats to a non-paper sheet feeding position in correspondence to transfer of sheets on a second sheet loading rack. CONSTITUTION:When a sheet P1 at a first sheet loading position is all fed in the arrow C direction, a motor rotates in accordance with a detection signal of a sensor not mentioned in the drawing and a second sheet P2 on a belt 8 is transferred to the right as a rear edge regulation plate 13 is transferred to the right by a shaft 4, a pulley 6 and the belt 8. Subsequently, a rear edge regulation plate 11 of the first sheet loading rack 12 is turned in the B direction at the head edge of the sheet P2. Consequently, the sheet P2 is smoothly transferred to the rear edge regulation plate 11 and the upper surface of the sheet loading rack 12 and transferred to the right. Accordingly, it is possible to smooth transfer.

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