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1. 发明专利

JPH04169453A PICTURE FORMING DEVICE 失效
公开(公告)号：JPH04169453A
公开(公告)日：1992-06-17
申请号：JP29277990
申请日：1990-10-30
申请人： BROTHER IND LTD
发明人： OOTAKE TAKAMASA , TOMIZAWA TAKASHI
IPC分类号： G03G15/00 , B65H3/06 , B65H7/20
摘要： PURPOSE:To recognize at once in whichever side a new essential picture is formed by providing constitution such that a marking means is actuated to perform marking on a reverse side of fed paper when a mode for marking on the reverse side is selected. CONSTITUTION:When a marking select key on a panel is pressed down further to press down a copy start key, a marking mode is obtained by the marking select key, and a data from a memory is output by a copy start command and to a laser beam oscillating source 17 through a buffer. In a marking device 200, in order to print a mark for showing a sheet in a reverse side, for instance, star mark and a character of reverse side, a thermal head 201 is successively drive heated, and the sheet is conveyed by rotating a thermal platen 203. In this way, ink of an ink ribon 202 is melted in the reverse side of the sheet to print the star mark and the character of reverse side on the reverse side of the sheet.

2. 发明专利

JPS63246778A PRESSURE FIXING DEVICE 失效
公开(公告)号：JPS63246778A
公开(公告)日：1988-10-13
申请号：JP8213387
申请日：1987-04-01
申请人： BROTHER IND LTD
发明人： TOMIZAWA TAKASHI
IPC分类号： G03G15/20
摘要： PURPOSE:To decrease the centrifugal force acting on pressing members for fixing so that a pressure fixing operation can be safely carried out by providing the plural pressing members for fixing which are rotatably supported so as to come into pressurized contact with recording paper over nearly the entire part of the recording paper in the direction intersecting therewith. CONSTITUTION:This pressure fixing device consists of the plural pressing members 53, 55, 57, 59 for fixing which are supported rotatably so as to contact the recording paper supported by a supporting member 7 over nearly the entire part in the direction intersecting with the feeding direction of the recording paper, the pressing members 37, 39, 41, 43 which bring the respective pressing members for fixing into pressurized contact with the recording paper by required pressures, and a driving member 40 which rotates the respective pressing members for fixing synchronously in the required direction. These plural pressing members 53, 55, 57, 59 for fixing are brought into pressurized contact with the relatively moving recording paper over nearly the entire part in the direction intersecting with the feed direction thereof by the pressure corresponding to the pressing force of the pressing members 37, 39, 41, 43, by which a material to be fixed is pressure-fixed to the recording paper. Thus, the centrifugal force acting on the pressing members for fixing is decreased at the time of the pressure fixing by shortening the radius of turning of the pressing members for fixing, by which the safety of the pressure fixing operation is improved.

3. 发明专利

JPH0432843A HEAT FIXING DEVICE 失效
公开(公告)号：JPH0432843A
公开(公告)日：1992-02-04
申请号：JP13924190
申请日：1990-05-29
申请人： BROTHER IND LTD
发明人： TAKAGI OSAMU , TOMIZAWA TAKASHI
IPC分类号： G03G15/20 , G03D13/00
摘要： PURPOSE:To remove the waste of heat efficiency and to rapidly execute a required operation such as warming-up by controlling a cooling device with a controlling means for controlling the operation of a belt cooling device based upon the sound of belt or the current state of a heat fixing device. CONSTITUTION:This heat fixing device is provided with a heat roller 40, a tension roller 43, a belt 44 and a nip roller 45 for pressing against the heat roller 40 through the belt 44 and constituted so as to heat a sheet while carrying it by the rotation of the belt 44 and also a cooling means 46 arranged oppositely to a part of the belt 44 stretched through the rollers 40, 43 and a control means for controlling the drying/stopping of the means 46. The cooling device 46 is controlled based upon the temperature of the belt 44 or at the time of warming-up. Consequently, the heat efficiency can be prevented from being reduced and required operation can quickly be executed.

4. 发明专利

JPH0240655A IMAGE FORMING DEVICE 失效
公开(公告)号：JPH0240655A
公开(公告)日：1990-02-09
申请号：JP19194488
申请日：1988-07-29
申请人： BROTHER IND LTD
发明人： TOMIZAWA TAKASHI
IPC分类号： G03D13/00
摘要： PURPOSE:To promote developing of an image and to make it glossy without generating a chipping in the image by heating a developing paper at non-contact with a hot air heating device. CONSTITUTION:The developing paper 38 is taken out from a developing cassette 32 by a half moon roller 33 with the traveling in the left direction, for example, of an original platen glass 2, fed to a pressure developing device 20, in a condition where it is layered with the already exposed micro capsule paper 37, and the latent image on the paper 37 is developed and transferred onto the developing paper 38. After the developing paper 38 is passed through the hot air, the surface resin layer is solidified by being cooled naturally, a smooth surface is formed, and the surface is made glossy. Here, shielding the heat fixing device 51 from the outside, the hot air, which heated the developing paper 38, can be fed to a blowing fan 29 again to circulate the hot air. Thus the electricity consumption can be brought down.

5. 发明专利

JPS63298345A ROLLED PAPER LOADING METHOD FOR IMAGE FORMING DEVICE 失效
公开(公告)号：JPS63298345A
公开(公告)日：1988-12-06
申请号：JP13537287
申请日：1987-05-29
申请人： BROTHER IND LTD
发明人： NAKADA TAKU , TOMIZAWA TAKASHI
IPC分类号： G03D3/00
摘要： PURPOSE:To improve operability and to reduce cost by forming an adhesion part at the edge part of rolled paper in a rolled state and making the tip part adhere to the previously loaded rolled paper which is going to be completed to be used with the adhesion part. CONSTITUTION:The adhesion part 12, for which a bath-face tape is used, is provided at the edge part 4a drawn from the rolled paper 5 in the rolled state. When the use of the rolled paper 5 is completed and the terminal end part 13 of the rolled paper appears, a new rolled paper in the rolled state is exchanged with the above-mentioned rolled paper. In this case, the both-face tape provided at the tip part 4a drawn from the new rolled paper 5 in the rolled state is connected to the terminal part 13 of the rolled paper. Then, the tip part 4a of the new rolled paper can be sequentially arranged in an exposure part, a developing part and a fixing part in a very simple way without disconnecting the rolled paper if a take-up roll 8 is rotated. Thus, the operability can be improved and the reduction of cost can be enhanced.

6. 发明专利

JPS63246775A PRESSURE FIXING DEVICE 失效
公开(公告)号：JPS63246775A
公开(公告)日：1988-10-13
申请号：JP8213087
申请日：1987-04-01
申请人： BROTHER IND LTD
发明人： TOMIZAWA TAKASHI
IPC分类号： G03G9/08 , G03G15/20
摘要： PURPOSE:To reduce the size and cost of a device by changing the pressurized contact force of a 1st roll with the 2nd roll by a single pressure regulating means according to the size of recording paper. CONSTITUTION:A material to be fixed is pressure-fixed to the recording paper 5 by the 2nd roll 17 which is brought into pressurized contact by the pressure corresponding to the elastic force of an elastic member 19 to the 1st roll which is supported by a frame 3 and is rotated by a driving means. The pressurized contact force of the 2nd roll 17 with the 1st roll 11 corresponding to the elastic force of the member 19 is changed according to the size of the recording paper to be pressure-fixed when the pressure regulating means 23 is actuated in this state. The change of the pressurized contact force of the 2nd roll 17 with the 1st roll 11 by the single pressure regulating means 23 according to various sizes of the recording paper is thereby permitted and the reduction in the size and cost of the device is permitted.

7. 发明专利

JPS63223646A DOT FORMING DEVICE 失效
公开(公告)号：JPS63223646A
公开(公告)日：1988-09-19
申请号：JP5718787
申请日：1987-03-12
申请人： BROTHER IND LTD
发明人： TOMIZAWA TAKASHI , HATTA NAOYUKI
IPC分类号： B41J31/00 , B41M5/26 , G03F5/00
摘要： PURPOSE:To permit printing of dots having a gradation characteristic to a transmittable medium by subjecting the transmittable medium to printing by means of imaging elements via ink ribbons scattered and disposed with ink in the form of dots. CONSTITUTION:Printing pins 4 as imaging elements are stricken by a solenoid built in a printing head 3 so that a transparent film 7 as the transmittable medium supported on a platen 6 is printed by the ink ribbons 5a, 5b. The ink ribbons 5a, 5b are scattered and disposed with the ink 8 in the form of the dots smaller in diameter than the diameter of the pins 4 and the density thereof is higher with the ink ribbon 5a than with the ink ribbon 5b. The gradation steps of the image on printed matter can, therefore, be widened further by selecting the ink ribbons 5a, 5b having different densities.

8. 发明专利

JPH01158448A IMAGE FORMING DEVICE 失效
公开(公告)号：JPH01158448A
公开(公告)日：1989-06-21
申请号：JP31784987
申请日：1987-12-15
申请人： BROTHER IND LTD
发明人： NAKADA TAKU , TOMIZAWA TAKASHI , HAYASHI SHIGEYUKI , ONO MOTOTSUGU , HORAGUCHI YOICHI
IPC分类号： G03B27/32 , G03D13/00 , G03F7/00
摘要： PURPOSE:To accomplish concurrent operations in exposing and developing steps, to shorten the image forming time and to scale down a device by making a speed obtained by multiplying a 1st speed by enlargement/reduction multiples almost equal to a 2nd speed. CONSTITUTION:To move an original and a light source 3 relatively at the 1st speed V1, images such as latent images are formed on a photosensitive recording medium 37 at the speed V1n identical to the speed obtained by multiplying the 1st speed V1 by an enlargement/reduction multiple (n). At the time of development, a developing means 20 developing the photosensitive recording medium 37 and the medium 37 are moved relatively at the 2nd speed V2, and the photosensitive recording medium 37 is developed at a speed identical to the 2nd speed V2. In such a way, operation is controlled so that the speed obtained by multiplying the 1st speed V1 by the enlargement/reduction multiple (n) can be almost equal to the 2nd speed V2. Thus, operations in the exposing and developing steps can be performed concurrently. In addition an exposing part and a developing part can be arranged closely in the title device, whereby it can be scaled down.

9. 发明专利

JPS63124070A DEVELOPING DEVICE 失效
公开(公告)号：JPS63124070A
公开(公告)日：1988-05-27
申请号：JP27061186
申请日：1986-11-13
申请人： BROTHER IND LTD
发明人： TOMIZAWA TAKASHI
IPC分类号： G03G15/08
摘要： PURPOSE:To satisfactorily electrify a toner, and to prevent fogging by placing a blade brush charged body on the surface of a toner carrying body, and triboelectrifying the toner by a blade brush. CONSTITUTION:On the surface of a sleeve 2 of a toner carrying body, a blade brush 6 for electrifying a toner is installed. Also, a magnet roller 3 is provided on the inside of the sleeve 2, and N and S poles are placed alternately at every prescribed angle. Subsequently, from a case 8, a toner 9 is supplied to the surface of the sleeve 2. In this state, the toner is triboelectrified by the blade brush 6. Its electrified toner 9 is held on the surface of the sleeve 2 by the magnet roller 3, and carried in the direction as indicated with an arrow A. Next, the toner 9 is brought into contact with a latent image holding body 1 and a latent image is developed. Accordingly, since the toner is electrified enough by the blade brush, it is held exactly, and fogging caused by scattering of the toner can be prevented.

10. 发明专利

JPH01211742A EXPOSING DEVICE 失效
公开(公告)号：JPH01211742A
公开(公告)日：1989-08-24
申请号：JP3831588
申请日：1988-02-19
申请人： BROTHER IND LTD
发明人： HORAGUCHI YOICHI , NAKADA TAKU , ONO MOTOTSUGU , TOMIZAWA TAKASHI , HAYASHI SHIGEYUKI
IPC分类号： G03B27/54
摘要： PURPOSE:To prevent parts except a light receiving member from being influenced with heat by receiving infrared light transmitted through a reflecting member in the light cast from a light source by the light receiving member. CONSTITUTION:A reflector 51 is an aluminum mirror in an elliptic shape and a halogen lamp 53 is arranged so that it is positioned on the focal point of the reflector 51. A reflector 52 constituting the reflecting member is an elliptic cold mirror and the halogen lamp 53 is arranged so that it is positioned on the focal point of the reflector 52. A reflector 54 is a flat cold mirror and receives the light reflected by the reflector 51, then it reflects only visible light to cast it to an original. Below the reflector 52, a heat shielding plate 55 constituting the light receiving member is arranged so as not to induce the infrared light transmitted through the reflector 52 to a lens 9, etc., on the downside. Thus, the infrared light transmitted through the reflecting member does not heat other parts, such as a lens, etc., and the heat can be effectively processed.

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