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1. 发明专利

JP2002244381A IMAGE FORMING DEVICE 失效
公开(公告)号：JP2002244381A
公开(公告)日：2002-08-30
申请号：JP2001045590
申请日：2001-02-21
申请人： CANON KK
发明人： TSUCHITANI YOSHIRO , NAKANE KIYOBUMI , SUGA KENTARO , MATSUO KEISUKE , TAKAHASHI YOSHIKAZU , SAITO JUN
IPC分类号： G03G15/00 , B65H1/00 , B65H1/26
摘要： PROBLEM TO BE SOLVED: To provide an image forming device to which the several kinds of sheet loading means are attached, whose useability at the time of attaching the sheet loading means to a device main body is improved and by which the control of the device main body is simplified. SOLUTION: An outside case 59 constituting the outside case of the device main body with paper feeding cassettes 1U and 1L is attachably/detachably provided at the device main body in accordance with the paper feeding cassettes 1U and 1L attached out of the several kinds of the paper feeding cassettes.

2. 发明专利

JPH06317954A METHOD FOR ASSEMBLING IMAGE FORMING DEVICE, IMAGE FORMING DEVICE AND METHOD FOR FITTING ARMOR COVER 失效
公开(公告)号：JPH06317954A
公开(公告)日：1994-11-15
申请号：JP12322093
申请日：1993-04-28
申请人： CANON KK
发明人： SUGIURA YOSHINORI , ISHIKAWA NORIYOSHI , SETORIYAMA TAKESHI , AMASHIRO CHITOSE , HAMADA TATSUO , TSUCHITANI YOSHIRO , KUBOTA TAKESHI , MUROOKA KEN , NIIMURA TAKESHI , ADACHI NOBUKAZU , KURODA AKIRA , SUGITA SOJI , YUZA AKIRA , AZUMA JUN , NOMURA YOSHIYA
IPC分类号： B41J29/00 , G03G15/00 , G03G21/16 , G03G21/18 , H04N1/00
摘要： PURPOSE:To facilitate assembling work and to improve the accuracy of a carrying position by fitting an armor cover after a feeding unit and an electrical unit are assembled from the lower part of a frame and required members are assembled from the upper part of the frame. CONSTITUTION:A cover guide 10e is assembled from the lower part of the frame 15 first and the electrical unit 14 is assembled from the lower part thereof. Besides, the feeding unit 30 obtained by unitizing a pickup roller, a feeding gear, a carrying roller or the like is assembled. Next, a scanner unit 8e is assembled after a transfer unit constituted of a main motor 20, a transfer roller 11, a guide member 11b or the like is assembled from the upper part of the frame 15. Besides, the armor cover 16 is assembled from the upper part of the frame 15 after the required members such as a fixing means 12 is assembled. Therefore, the carrying guide part 15j of a recording medium positioned at the upper part of the unit 14 can be integrally formed with the frame 15 and positional relation between a transfer nip part and the recording medium is easily and accurately constituted.

3. 发明专利

JPH06312530A LASER SHUTTER MECHANISM, IMAGE FORMING DEVICE AND IMAGE FORMING SYSTEM 失效
公开(公告)号：JPH06312530A
公开(公告)日：1994-11-08
申请号：JP12322293
申请日：1993-04-28
申请人： CANON KK
发明人： SUGIURA YOSHINORI , ISHIKAWA NORIYOSHI , SETORIYAMA TAKESHI , AMASHIRO CHITOSE , HAMADA TATSUO , TSUCHITANI YOSHIRO , KUBOTA TAKESHI , MUROOKA KEN , NIIMURA TAKESHI , ADACHI NOBUKAZU , KURODA AKIRA , SUGITA SOJI , YUZA AKIRA , AZUMA JUN , NOMURA YOSHIYA
IPC分类号： B41J2/44 , G02B26/10 , G03G15/00 , G03G21/00
摘要： PURPOSE:To enhance safety by providing protection guide members, which perform both the protection of an actuator for driving a laser shutter that is freely opened and closed with respect to the laser light path of a laser light emitting means and the guides for a process cartridge to the actuator. CONSTITUTION:In a laser beam printer, a laser shutter 8g, which can be moved between a closing position for shielding the laser light path so as to prevent the careless leaking of the laser light and a releasing position for releasing the laser light path by the evacuation from the closing position in use, is provided in a scanner unit 8e that is the laser-light emitting means. The laser shutter 8g is pushed up to the releasing position by pushing a lever 8i with a protruding part (actuator) 1b, which is provided at the tip of a process cartridge B. At this time, two protecting guide members 8j, which also become the guides when the protruding part 1b is inserted, are provided around an insertion part 8g3, wherein the protruding part 1b is inserted. The reaching of a finger or the like into the lever 8j is blocked.

4. 发明专利

JPH06282134A PACKING DEVICE FOR SHEET FEEDING DEVICE 失效
公开(公告)号：JPH06282134A
公开(公告)日：1994-10-07
申请号：JP9054193
申请日：1993-03-26
申请人： CANON KK
发明人： TSUCHITANI YOSHIRO
IPC分类号： B65H3/46 , G03G15/00
摘要： PURPOSE:To maintain the safety of a sheet feeding means from impact such as vibration by pressing and fixing the sheet feeding means in a reverse direction to the rotating direction thereof at the time of transporting the device by using a packing member. CONSTITUTION:In the case of attaching the packing member 19, a wide part 19a1 where a 1st bend part 19a is erected is inserted between a frame 6 and a roller guide 21 so that it may be positioned between the ribs 6a of the frame 6, and held and fixed in the up-and-down direction of the wide part 19a1. A 3rd bend part 19c is inserted under a feeding roller 3 and arranged so that the notched surface of the roller 3 can be supported by a triangular surface formed by bending. A 2nd bend part 19b is attached to be erected along the frame 6. By attaching a cassette 2 to a device main body 1 in a direction shown by an arrow in such a state, the 3rd bend part 19c is pushed aside by the upper surface 20a of an intermediate plate pressing member 20, whereby the roller 3 is pressed in a direction shown by an arrow (b)(the reverse direction to a feeding direction) simultaneously with supporting the notched surface of the roller 3.

5. 发明专利

JPH05240327A 失效
公开(公告)号：JPH05240327A
公开(公告)日：1993-09-17
申请号：JP32850892
申请日：1992-11-13
申请人： CANON KK
发明人： TSUCHITANI YOSHIRO , YUKIMACHI HIROSHI
IPC分类号： F16H1/20 , F16H55/17 , F16H55/36
摘要： PURPOSE:To provide a rotary body device which is capable of obtaining the correct position in the axial direction, and has the wear-resistance of the edge surface in the rotary device such as a gear device, a wrapping connecting device or the like. CONSTITUTION:A cap 2 which is fitted in the outer circumference of a boss part 1b of a gear 1 is provided. The cap 2 is provided with a sliding surface 2a which slides with an adjacent member, a cylindrical fitting part 2b which is fitted to the boss part 1b, a fitting part 2c which pushingly presses the outer circumference of the boss 1b, and an introducing part 2d which facilitates the fitting of the cap 2 to the boss 1b. This arrangement allows an easy assembly, no mistakes in setting the direction of the sliding surface, a clear identification of the sliding parts, a stable sliding, an easy control of the clearance in the axial direction and a common use of one rotary body to various kinds of machines by providing a plurality kinds of caps. Simple change of the sliding members can realize an easy maintenance, and this device is preferable when applied to the rotary body device where a pulley and a gear are as made rotary body.

6. 发明专利

JPH03166138A IMAGE FORMING DEVICE 失效
公开(公告)号：JPH03166138A
公开(公告)日：1991-07-18
申请号：JP30681789
申请日：1989-11-27
申请人： CANON KK
发明人： AZETA TAKAHIRO , KOBAYASHI HIROO , YUKIMACHI HIROSHI , TSUCHITANI YOSHIRO , WARATANI TSUYOSHI , OTSUKA MASATO , MORIYA TOSHIBUMI , YAGI TADASHI , MIYAKE HIROAKI
IPC分类号： G03G15/00 , B65H3/44 , B65H29/60 , B65H83/02
摘要： PURPOSE:To increase the sheet feeding capacity by furnishing a refeeding means, which introduces sheets stacked on an exhausting/stacking means to another image forming part in an image forming device wherein No.1 image forming part is accommodated. CONSTITUTION:No. 1 image forming part 5 forms image on a sheet P fed from No. 1 sheet feeding means 12, 13. The sheet P, on which image is formed by this No.1 image forming part 5, is loaded on an exhausting/stacking means 27 and then introduced by a refeeding means 26 to No.2 image forming part 5' formed in this image forming device 1 concerned. By this No.2 image forming part 5', image is formed on the sheet P.

7. 发明专利

JPH03148680A TRANSFER DEVICE 失效
公开(公告)号：JPH03148680A
公开(公告)日：1991-06-25
申请号：JP28817189
申请日：1989-11-06
申请人： CANON KK
发明人： TANIGAWA KOICHI , TAKEUCHI AKIHIKO , YUNAMOCHI TAKAYASU , TSUCHITANI YOSHIRO
IPC分类号： G03G15/14 , G03G15/00 , G03G15/16
摘要： PURPOSE:To prevent the occurrence of a part-missing image by driving a transfer member at a surface moving speed higher than that of a first image carrier and simultaneously setting a second image carrier carrying speed higher than the first image carrier moving speed. CONSTITUTION:A transfer roller 13 as the transfer member surface-moves in a prescribed direction, and a transfer paper 10 as the second image carrier sent to a photosensitive drum 1 as the first image carrier on which images that can be transferred are formed is pressed between the transfer roller and the photosensitive drum 1. Simultaneously, the transfer paper 10 is surface-moved in order in the surface moving direction of the photosensitive drum 1, and the images on the side of the photosensitive drum 1 that can be transferred are sequentially transferred onto the surface of the transfer paper 10. The surface moving speed of the transfer roller 13 is set higher than that of the photosensitive drum 1, and feed speeds of resist rollers 11 and 12 being final carrying means, downstream of the carrying direction of a system carrying the transfer paper 10 toward the photosensitive drum 1, is set higher than the surface moving speed of the photosensitive drum 1.

8. 发明专利

JPH03145684A FIXING DEVICE 失效
公开(公告)号：JPH03145684A
公开(公告)日：1991-06-20
申请号：JP28589789
申请日：1989-10-31
申请人： CANON KK
发明人： MORIYA TOSHIBUMI , KOBAYASHI HIROO , OTSUKA MASATO , AZETA TAKAHIRO , YAGI TADASHI , WARATANI TSUYOSHI , TSUCHITANI YOSHIRO , YUKIMACHI HIROSHI , MIYAKE HIROAKI
IPC分类号： G01K13/08 , G03G15/20
摘要： PURPOSE:To secure the proximity gap quantity by allowing an abutting part of a holding member for holding a temperature detecting element (thermoswitch) to abut on a non-paper pass area of a heating roller. CONSTITUTION:An abutting part 5 of a holding member 4 for holding a thermoswitch 3 abuts on a heating (fixing) roller 1, especially to the outside of an image area A being a pass area of a recording material of the maximum size of the fixing roller 1. The holding member 4 has a shaft 6 of a rotation stopper so that it does not rotate on the outside peripheral surface of the fixing roller 1. Also, to the shaft 6, force is applied in the direction in which it approaches the fixing roller 1 by a pressing member 12, and a proximity gap of the thermostat 3 and the fixing roller 1 is formed. Moreover, the thermostat 3 is positioned near a contact point of the holding member 4 and the fixing roller 1, therefore, the proximity gap quantity is formed by an abutting part 5. Accordingly, the gap quantity X is scarcely influenced by the interval accuracy of the shaft 6 and the fixing roller 1. In such a way, the gap quantity of a temperature detecting member and a heat roller can be secured by a simple constitution.

9. 发明专利

JPH03132775A IMAGE FORMING DEVICE 失效
公开(公告)号：JPH03132775A
公开(公告)日：1991-06-06
申请号：JP27040589
申请日：1989-10-19
申请人： CANON KK
发明人： TSUCHITANI YOSHIRO , AZETA TAKAHIRO , KOBAYASHI HIROO , YUKIMACHI HIROSHI , WARAAI TSUYOSHI , OTSUKA MASATO , MORIYA TOSHIBUMI , YAGI TADASHI , MIYAKE HIROAKI
IPC分类号： B41J2/44 , G03G15/00 , G03G15/04 , G03G15/041 , G03G21/18
摘要： PURPOSE:To form images of different resolutions at a time, to shorten image forming time and to prevent picture irregularily by providing plural image forming units of different resolutions. CONSTITUTION:If an image resolution of the first image forming unit 2 is set 300 dpi, for instance, the first image forming unit 2 forms images of an original which includes photographs requiring a high resolution and characters (requiring a normal resolution) on a transfer paper P sent from a first paper feed unit 4 with the normal resolution. After that, the second image forming unit 3 forms an image of a photograph requiring the high resolution by multiprinting. Consequently, even if an original includes pictures requiring different resolutions, this image forming device speedily and sharply forms their images on transfer paper.

10. 发明专利

JPH02291352A IMAGE FORMING DEVICE 失效
公开(公告)号：JPH02291352A
公开(公告)日：1990-12-03
申请号：JP11103489
申请日：1989-04-28
申请人： CANON KK
发明人： TSUCHITANI YOSHIRO , KOBAYASHI HIROO , YAGI TADASHI , YUKIMACHI HIROSHI , AZETA TAKAHIRO , OTSUKA MASATO , WARATANI TSUYOSHI , SAWADA TAKAMASA , MIYAKE HIROAKI , MORIYA TOSHIBUMI
IPC分类号： B65H29/60 , B65H31/00 , G03G15/00
摘要： PURPOSE:To prevent sheet material from being jammed regardless of the state of a tray by providing a means for discharging the sheet material into respective discharge ports whether the tray be open or closed. CONSTITUTION:A transfer material 5 with its transferred image fixed by fixing rollers 3, 4 is uncurled while being discharged by paper discharging rollers 6, 7, 8, and discharged along guide plates 11, 12 onto a tray provided at the upper part of a main body 2 when a flapper 9 is rotated downward around a pin 18. When the flapper 9 is rotated upward, the transfer material 5 is conveyed along a guide plate 10 and discharged by discharge rollers 13, 14 onto a table provided at the main body from a slit 15.

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