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31. 发明专利

JPH02285765A PICTURE READER 失效
公开(公告)号：JPH02285765A
公开(公告)日：1990-11-26
申请号：JP10578589
申请日：1989-04-27
申请人： CANON KK
发明人： TAKEDA AKIO
IPC分类号： H04N1/04 , H04N1/10 , H04N1/107
摘要： PURPOSE:To prevent the effect of heat from a light source to an electric component and to improve the reliability by arranging the light source and the electric component in a moving carriage with an image forming lens inbetween in the opposite side. CONSTITUTION:A main scanning carriage 11 is driven in the Y axis along a main scanning rail 11A with a sub scanning carriage 12 and the carriage 12 is driven in the X direction along the sub scanning rail 12A prolonged in the X axis direction. While the carriage 12 is stopped, the carriage 11 is moved from a point A to a point B, an original picture with a prescribed width is read by a sensor 7 and the carriage 11 restores to the point A. Then the carriage 12 is moved by a width read by the sensor 7 in the X axis direction from the point (a) and the carriage 11 is moved from the point A to the point B in the Y axis direction to read the succeeding picture. In this case, the light from a halogen lamp 2 to the electric component 8 is shielded by a holder 20 of the lens array 11 and a reflecting shade 4B and the light from the lamp does not reach the component 8.

32. 发明专利

JPH02261765A SHEET TRAY DEVICE 失效
公开(公告)号：JPH02261765A
公开(公告)日：1990-10-24
申请号：JP8105989
申请日：1989-03-31
申请人： CANON KK
发明人： TAKEDA AKIO
IPC分类号： B65H31/00 , B65H1/26
摘要： PURPOSE:To perform work or operation in a state of no projection of a tray body at time of not yet using a device or its disuse by installing a tray storage part where the tray body is maintained free of storage in keeping out of a sheet forward passage. CONSTITUTION:When a tray body 1 is stably maintained upright in a tray storage part 2, printing paper 22a discharged is discharged successively along a specified sheet forward route Ra. At this time, the sheet tray 1 is being housed in a position where its progress (discharge) is not checked in keeping out of this route Ra by the tray storage part 2. Consequently, image forming operation of a device, especially discharge operation of a sheet can be done normally without hindrance.

33. 发明专利

JPH02188262A LIQUID JET RECORDER 失效
公开(公告)号：JPH02188262A
公开(公告)日：1990-07-24
申请号：JP918889
申请日：1989-01-18
申请人： CANON KK
发明人： MIYAUCHI YASUO , KANEMITSU SHINJI , KURATA MITSURU , NOMURA AKIHIRO , EHATA TOKITAKA , TAKEDA AKIO , UCHIDA HARUO , ONODA SHIGEYOSHI
IPC分类号： B41J2/175
摘要： PURPOSE:To obtain a small-size device by a method wherein a first integral ink tank-type head and a second integral ink tank-type head are disposed on a carriage so that respective printing heads are arranged along the reciprocating direction of the carriage and respective ink tanks are arranged vertically to the reciprocating direction. CONSTITUTION:On the front corner parts of a carriage 2, integral ink tank-type heads 3, 6 having a square form detachable printing heads 32, 62 of width disposed downward of the end part, and knobs 31, 61 mounted on the upper surface thereof are supported at an interval in a direction of an arrow A. Integral ink tank-type heads 4, 5, having an L-shaped cross section and detachable printing heads 42, 52 of width l disposed downward of the upper part, and said heads 3, 6 are respectively arranged vertically to the direction of the arrow A so that the most parts of the integral ink tank-type heads 3, 6 can be positioned in a recessed part. The four printing heads 32, 42, 52, and 62 are arranged in the direction of the arrow A at intervals (d) so that the tip ends thereof are projected from an open part 23 on the bottom of the carriage 2.

34. 发明专利

JPH02178149A RECORDER 失效
公开(公告)号：JPH02178149A
公开(公告)日：1990-07-11
申请号：JP33264688
申请日：1988-12-28
申请人： CANON KK
发明人： EHATA TOKITAKA , KANEMITSU SHINJI , NOMURA AKIHIRO , MIYAUCHI YASUO , KURATA MITSURU , TAKEDA AKIO , UCHIDA HARUO , ONODA SHIGEYOSHI
IPC分类号： B41J13/00 , B65H1/26 , B65H11/00 , B65H31/10
摘要： PURPOSE:To make improvements in the promotion of miniaturization and operability of a recorder by making a discharge port of paper after printing usable with a paper feed port in combination. CONSTITUTION:When a paper feed button B is pushed, a plunger 32 is excited, and a tip of a paper feed guide plate 39 is rotated, thus a paper feed port 34 is formed. Simultaneously with a tip 14a of paper 14 hit on a nip of a pair of feed and discharge paper rollers 37, a paper detecting lever 38 is also pressed by the paper tip and goes down, whereby the presence of paper is detected, and the feed-discharge rollers 37 and a sub-scanning roller pair 35 continuously rotated, feeding the paper, and this paper is drawn into space between guides 36, so that a rear end 14b of the paper is set to a position where it is not slipped out of the paired sub-scanning rollers 35. In addition, if the paper feed guide plate 39 stops current-energization to the plunger 32 at a time when the paper detecting lever 38 is reset to its original position, it goes down up to a spot in contact with a paper discharge tray 30 with its own weight, thus the paper feed port 34 comes to a paper discharge port 40.

35. 发明专利

JPH02104164A IMAGE READER 失效
公开(公告)号：JPH02104164A
公开(公告)日：1990-04-17
申请号：JP25587188
申请日：1988-10-13
申请人： CANON KK
发明人： TAKEDA AKIO , NOMURA AKIHIRO , KANEMITSU SHINJI , KURATA MITSURU , EHATA TOKITAKA , MIYAUCHI YASUO , UCHIDA HARUO , ONODA SHIGEYOSHI
IPC分类号： H04N1/04 , G06T1/00 , H04N1/10 , H04N1/107
摘要： PURPOSE:To improve the stop accuracy of sub-scanning carriage by engaging an engaging means fixed on a sub-scanning carriage with a sub-scanning rail arranged along a sub-scanning direction and pressing the sub-scanning rail by a pressing means. CONSTITUTION:A main scanning carriage 1, a main scanning motor 5, etc., are mounted on the sub-scanning carriage 6 and the cylindrical sub-scanning rail 20 arranged along the sub-scanning direction is laid on a device body 8 and the carriage 6 is constituted so as to be moved in the sub-scanning direction by using the rail 20 as a guide. The pressing means 21 for pressing the rail 20 is mounted on the carriage 6. The influence of a gap generated between the rail 20 and the engaging means is removed and inertia force generated at the time of stopping the carriage 6 is adsorbed. Consequently, the stopping accuracy of the sub-scanning carriage 6 can be maintained at a high level.

36. 发明专利

JPS6396684A IMAGE FORMING DEVICE 失效
公开(公告)号：JPS6396684A
公开(公告)日：1988-04-27
申请号：JP24232986
申请日：1986-10-13
申请人： CANON KK
发明人： NAMEKATA SEIICHI , TAKEDA AKIO , SASAKI SHINICHI
IPC分类号： G03G15/20
摘要： PURPOSE:To reduce the size and weight of a device by arranging slantingly such a pressure-fixing device that the line of the nip part of it roller is at a prescribed angle to a direction crossing a sheet conveyance direction at right angles. CONSTITUTION:The distance L from a photosensitive drum position to the nip part of a fixing roller couple 17 is made shorter than the longest sheet S, and a register roller couple 10, a photosensitive drum 2, and a separation roller 12 are arranged at right angles to the conveyance direction of the sheet S. The pressure roller 17a and fixing roller 17b of the fixing roller couple 17 are arranged slantingly so that their angle of intersection is 17 deg., and the line N-N of the nip part to the rollers 17a and 17b is at an angle theta to a line B-B crossing the conveyance direction so that 0 deg.

37. 发明专利

JPS62161170A METHOD FOR PICTURE QUALITY IMPROVEMENT OF RECORDING IMAGE AND KIT FOR PICTURE QUALITY IMPROVEMENT USED FOR SAME 失效
公开(公告)号：JPS62161170A
公开(公告)日：1987-07-17
申请号：JP334586
申请日：1986-01-10
申请人： CANON KK
发明人： TAKEDA AKIO
IPC分类号： G03G15/20 , G03G15/00
摘要： PURPOSE:To improve the picture quality of the image on a recording sheet through easy operation and to obtain picture quality with glossiness and high density by utilizing the sheet conveying means and fixing means of a recording device with a process kit, and mounting a kit for picture quality improvement on a main device body instead of a process kit and using the kit. CONSTITUTION:The process kit B for taking a copy is detached from the main copying machine body 7 and the kit A for picture quality improvement is inserted and mounted instead of the process kit. The picture quality is improved, so a form 8 after copying operation is mounted and set up on a paper feed tray. The frame body 6 of the kit A for picture quality improvement is inserted into the main copying machine body 7 completely, and then the interaction between main-machine side microswitches 12a-12c and kit side grooves 16a-16c, electric connections between main-machine side contacts 13a and 13b and kit side contacts, and drive coupling between a main- machine side driving rotary disk 14 and a kit side driven coupling plate are completed. For example, the microswitch 12b is turned on and then a signal circuit 20 becomes ready to generate various signals required to perform a process for picture quality improvement.

38. 发明专利

JPH11143281A IMAGE FORMING DEVICE 失效
公开(公告)号：JPH11143281A
公开(公告)日：1999-05-28
申请号：JP30275897
申请日：1997-11-05
申请人： CANON KK
发明人： TAKEDA AKIO
IPC分类号： G03G15/20 , B65H29/58 , B65H29/60 , G03G15/00 , G03G21/14
摘要： PROBLEM TO BE SOLVED: To eject a sheet at speed in which a processing device is not disturbed after ejecting paper regardless of the carrying speed of the sheet by holding the sheet where fixing is executed at a second carrying speed, between a fixing means and an ejecting means so as to reach the ejecting means after passing through the fixing means. SOLUTION: In the case of forming an image, OHP paper 12 is guided to a holding means having guides 14a and 14b by switching the position of a flapper 13 and is further carried by a first carrying roller 15. A carrying speed V1 (second carrying speed) at this time is set lower than a usual carrying speed V (first carrying speed) in order to execute the fixing. When the rear end of the OHP paper 12 passes through the flapper 13, the OHP paper 12 is switched back by reversely rotating the first and second carrying rollers 15 and 16. The carrying speeds of the respective first and second carrying rollers 15 and 16 and a pair of ejection rollers 10 are set to speed V2 that is higher than the speed V1. Thus, the OHP paper 12 is ejected before the occurrence of curling caused by being hung during being ejected.

39. 发明专利

JPH10161461A IMAGE FORMING DEVICE 失效
公开(公告)号：JPH10161461A
公开(公告)日：1998-06-19
申请号：JP31788596
申请日：1996-11-28
申请人： CANON KK
发明人： TAKEDA AKIO
IPC分类号： G03G15/20 , B65H29/20 , G03G15/00 , G03G21/00
摘要： PROBLEM TO BE SOLVED: To eject a sheet at a speed without any trouble in loading, regardless of the carrying speed of the sheet when it passes through a fixing means by providing a holding means for keeping the sheet between the fixing means and an ejecting means. SOLUTION: When an image is formed on an OHP sheet 12, the position of a flapper 13 is switched and the sheet 12 is guided to a reverse path 14 as the holding means having guides 14a and 14b and further, carried by a first carrying roller 15. The carrying speed V1 (second carrying speed) at this time is slower than a normal carrying speed V (first carrying speed), to attain fixation on the sheet 12. For instance, the carrying speed V1 is set 25mm/s with respect to the fact that the normal carrying speed V is 100mm/s. But, these values are different according to the outside diameter, material quality, etc., of the roller of a fixing unit. A backward feeding preventing flapper 17 is added to change the switching of the flapper 13 and the control of the drive of the first and second carrying rollers 15 and 16, etc.

40. 发明专利

JPH09304985A IMAGE FORMING APPARATUS 失效
公开(公告)号：JPH09304985A
公开(公告)日：1997-11-28
申请号：JP14643096
申请日：1996-05-17
申请人： CANON KK
发明人： TAKEDA AKIO
IPC分类号： G03G15/00
摘要： PROBLEM TO BE SOLVED: To prevent deterioration of image quality due to bending of a member directly related to image formation by setting the outer frames of functional members positioned between the receiving part of each functional part and the leg part thereof all on one straight line when they are stacked. SOLUTION: Leg parts 16a-16d formed on four corners of the base of a reader part outer frame 17 are fitted in recessed receiving parts 33a-33d formed on four corners of the upper surface of a printer part outer frame 32 to support the outer frame 17 on the outer frame 32, and leg parts 31a-31d formed on four corners of the base of the printer part outer frame 32 are fitted in the recessed receiving parts 47a-47d formed on four corners of the upper surface of a feeder part outer frame 46 to support the outer frame 32 on the outer frame 46. Further, ribs 32a-32d and ribs 46b-46d are formed on the outside of the position between the upper part receiving parts 33a-33d and the lower leg parts 31a-31d of the printer part, and on the outside of the position between the upper receiving part 47a-47d and the lwer leg parts 45a-45d of the feeder part, respectively.

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