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1. 发明专利

JPH05208512A MANUFACTURING DEVICE FOR THERMAL HEAD AND RESISTOR PASTE DRAWING DEVICE 失效
公开(公告)号：JPH05208512A
公开(公告)日：1993-08-20
申请号：JP1594692
申请日：1992-01-31
申请人： HITACHI LTD , HITACHI TECHNO ENG
发明人： SATOU KAZUYASU , WATANABE MICHIHIRO , KIYONO TASAKU , AOYANAGI MASAHISA , YABUNO KOHEI , TAKAHASHI KENICHI
IPC分类号： B41J2/335 , H01C17/06 , H05K1/16 , H05K3/10
摘要： PURPOSE:To depict a paste for resistor in a constant film thickness and flat surface at all times at high speed and of an accurate position on an insulated base used for a thermal head. CONSTITUTION:A device basically consists of a nozzle 1 for discharging paste, a container 2 for retaining the paste, a displacement sensor 6 for sensing recesses and projections on the insulated base and a support bed 5 for fixing the insulated base 4. A pressure relieving device, a high speed rotating motor 9 and a low speed rotation motor 10, a light source and light receiving elements and a motor for rotating the displacement sensor are added to above-referred basic elements. A resistor paste with constant film thickness and flat surface can be depict at high speed and at a correct position of the insulated base by the arrangement, and a thermal head with little unevenness in its resistance value and of high quality printing can be manufactured efficiently.

2. 发明专利

JPH047891A APPARATUS AND METHOD FOR DRAWING 失效
公开(公告)号：JPH047891A
公开(公告)日：1992-01-13
申请号：JP10755890
申请日：1990-04-25
申请人： HITACHI LTD , HITACHI TECHNO ENG
发明人： KIYONO TASAKU , WATANABE MICHIHIRO , SATOU KAZUYASU , YABUNO KOHEI , TAKAHASHI KENICHI
IPC分类号： B41F15/08 , H01C17/06 , H05K3/10
摘要： PURPOSE:To keep the cross-sectional shape of a drawn paste definite by a method wherein information on an uneven point, of a body to be drawn, which is measured by using a displacement sensor is kept in a temporary storage device and the position of a nozzle which reaches the part just above the point after a definite time of the scanning operation of the displacement sensor is controlled in the up-and-down direction. CONSTITUTION:A nozzle 1 and a displacement sensor 5 are arranged in such a way that they are in series with the measurement direction of a body 10 to be drawn and that, after the displacement sensor 5 comes into contact with an arbitrary printing (drawing) point on the surface of the body to be drawn, the nozzle 1 is passed above it. A data on an uneven point, of the body 10 to be drawn, which is detected by using the displacement sensor 5 is stored in a temporary storage device 9; after the displacement sensor 5 is passed, the data is read out when the nozzle 1 reaches the part just above the point. The nozzle 1 and/or the object 10 to be drawn are moved up and down according to the data. Thereby, the interval between the body to be drawn and the nozzle is kept definite, and a fluid can be printed, in a stable pattern, on the object to be printed.

3. 发明专利

JPH05220929A THERMAL HEAD RESISTOR PRINTING DEVICE 失效
公开(公告)号：JPH05220929A
公开(公告)日：1993-08-31
申请号：JP2499692
申请日：1992-02-12
申请人： HITACHI LTD , HITACHI TECHNO ENG
发明人： KIYONO TASAKU , WATANABE MICHIHIRO , SATOU KAZUYASU , AOYANAGI MASAHISA , YABUNO KOHEI , TAKAHASHI KENICHI
IPC分类号： B41F17/14 , H01C17/06 , H05K3/10
摘要： PURPOSE:To improve an accuracy in measuring unevenness of a substrate to form heating resistors with a small variation in resistance value in a delivery- system thick-film thermal head printing device. CONSTITUTION:A substrate unevenness measuring system for measuring unevenness of a substrate consists of a lever 15 provided with a contact piece 18 coming into contact with the surface of the substrate and a displacement gauge contact part 22 brought into contact with a displacement gauge 4 through a detector 3. In this construction, the lever can magnify the unevenness of the substrate surface by a factor of L2/L1 and transmit the result to the displacement gause through a fulcrum 19. A syringe 2 containing a resistor paste 12 vertically moves in accordance with the measurement result of the substrate unevenness measuring system so that a gap between a nozzle 1 and the substrate 11 is always made constant. As a result, on the substrate 11, the resistor paste is formed into a strip-form pattern with a fixed film thickness and a fixed pattern width.

4. 发明专利

JPH06343123A IMAGE READER AND FACSIMILE EQUIPMENT 失效
公开(公告)号：JPH06343123A
公开(公告)日：1994-12-13
申请号：JP13025493
申请日：1993-06-01
申请人： HITACHI LTD
发明人： OHARA SHUNICHI , AOYANAGI MASAHISA , MATSUMOTO SHOGO , OBATA SHIGERU , WATANABE MICHIHIRO , SATO MASAKI , YAMASHITA KYOICHI , SUZUKI TOMONORI
IPC分类号： G03G15/00 , H04N1/00 , H04N1/04
摘要： PURPOSE:To minimize the mount installation area of the main body of the image reader, equipped with a book type document reading mechanism and a sheet type document reading mechanism, by making a sheet document tray not to project from the device main body. CONSTITUTION:The image reader consists of the book type document reading mechanism composed of a transparent document support member which forms a 1st image read surface, a document presser 1, and a moving type image reading mechanism which reads out an image of a document while moving in parallel, the document tray 5 on which sheet type documents are stacked, a paper discharge tray 7, a U-turn mechanism which inverts the conveyance direction of a document conveyed from the document tray 5, and a sheet type document reading mechanism which has a 2nd image read surface 18 on the downstream side of the U-turn mechanism in the document conveyance direction and reads out the image of the document moving on the 2nd image read surface by the moving type image reading mechanism 21.

5. 发明专利

JPH06233051A IMAGE READER 失效
公开(公告)号：JPH06233051A
公开(公告)日：1994-08-19
申请号：JP1613393
申请日：1993-02-03
申请人： HITACHI LTD
发明人： SHIMIZU HIROYA , NAGATA TATSUYA , WATANABE MICHIHIRO , HASHIMOTO SATORU
IPC分类号： B65H5/36 , H04N1/00
摘要： PURPOSE:To provide the image reader which is free from degradation of the read picture quality and defects of carrying at the time of reading a document and to reduce the size and the cost of a product using the image reader. CONSTITUTION:The image reader consisting of a platen roll 13 as the document carrying means and a line image sensor 12 is provided with a guide member 11, which has a guide face 10 to guide the front end part of the document, on the upstream side of the line image sensor 12 in the carrying direction of the document 16. Thus, the document 16 is stably carried and is read with a high picture quality, and the size and the cost of a motor for document carrying are reduced, and the degree of freedom of design of the product using the image reader is increased, and the product is made small-sized and low-cost.

6. 发明专利

JPH06164817A FACSIMILE EQUIPMENT 失效
公开(公告)号：JPH06164817A
公开(公告)日：1994-06-10
申请号：JP30844792
申请日：1992-11-18
申请人： HITACHI LTD
发明人： MATSUMOTO SHOGO , AOYANAGI MASAHISA , OHARA SHUNICHI , OBATA SHIGERU , WATANABE MICHIHIRO , SATO MASAKI , YAMASHITA KYOICHI , SUZUKI TOMONORI
IPC分类号： B65H3/52 , B65H3/56 , G03G15/00 , H04N1/00
摘要： PURPOSE:To miniaturize an equipment and to reduce the cost by elevating/ descending a feeding roller and an original intrusion inhibiting member with the torque of a separation roller separating one by one original so as to make the paper feeding operation stable. CONSTITUTION:A separation roller 11 separating one by one original is driven clockwise. The torque of a separation roller driving shaft 10 is transmitted to a paper feeding roller rocking arm 9 as the moment via a paper feeding roller pushing-down arm 209. The arm 9 is driven around the driving shaft 10 against the push-up force of a spring 212. A paper feeding roller 8 supported freely turnably to the arm 9 is protruded downward from the lower side of an upper side original guide 102 and pressed onto an original inserted from an original inserting entrance 101. Furthermore, an original stopper 210 is turned clockwise around a turning fulcrum 211 through the turning of the arm 209 and an original butt section of the original stopper 210 is retreated from the original carrying path.

7. 发明专利

JPH06125421A FACSIMILE EQUIPMENT AND ITS OPERATING METHOD 失效
公开(公告)号：JPH06125421A
公开(公告)日：1994-05-06
申请号：JP27568492
申请日：1992-10-14
申请人： HITACHI LTD
发明人： SHIMIZU HIROYA , NAGATA TATSUYA , WATANABE MICHIHIRO , HASHIMOTO SATORU
IPC分类号： H01L27/146 , H01L29/78 , H01L29/786 , H04N1/028 , H04N1/04 , H04N1/19
摘要： PURPOSE:To reduce the variance in the threshold voltage of a thin film transistor TR by applying a negative gate-source voltage to the gate electrode of a thin film TR in a line image sensor in the period from the end of read of a document to the start of read of the next document. CONSTITUTION:When a document is converted to an electric signal and transmitted to a public line network, the document is read up to its terminal by a line image sensor 100 after the lapse of a certain time after the terminal of the document is detected by a document detecting sensor 101, thereafter, the sequence that the gate-source voltage and the gate-drain voltage of the thin film TR constituting the driving circuit of the line image sensor 100 are made negative to restore the varied threshold voltage is executed. That is, the negative gate-source voltage is applied to the thin film TR constituting the line image sensor 100 when the line image sensor 100 is stopped at the time of the end of reading of one document page or when reading of documents is terminated.

8. 发明专利

JPH0698120A FACSIMILE EQUIPMENT 失效
公开(公告)号：JPH0698120A
公开(公告)日：1994-04-08
申请号：JP11940691
申请日：1991-04-23
申请人： HITACHI LTD
发明人： MATSUMOTO SHOGO , WATANABE MICHIHIRO , OBATA SHIGERU , FUKUDA HIROMITSU , YAMASHITA KYOICHI
IPC分类号： H04N1/21
摘要： PURPOSE:To prevent information from being erased by memory saturation while satisfactorily keeping the reading accuracy of a facsimile. CONSTITUTION:When the remaining capacity of a memory part 2 is gradually reduced at the time of continuously reading originals, the speed for reading one original or the gap of originals is controlled by an original gap control part 11 so as to delay the speed of storage into the memory 2, and the speed is fixed at least while reading one original. Therefore, the original conveying speed during reading one original is kept constant, and the reading accuracy is improved. On the other hand, memory saturation is prevented, and information is prevented from being erased.

9. 发明专利

JPH05191645A PICTURE READER AND FACSIMILE EQUIPMENT 失效
公开(公告)号：JPH05191645A
公开(公告)日：1993-07-30
申请号：JP236692
申请日：1992-01-09
申请人： HITACHI LTD
发明人： SATOU KAZUYASU , WATANABE MICHIHIRO , AOYANAGI MASAHISA , KIYONO TASAKU , OKI KATSUO , FUKUDA HIROMITSU , OOGA KIMIO
IPC分类号： G03B27/50 , H04N1/04 , H04N1/19 , H04N1/40 , H04N1/401
摘要： PURPOSE:To provide the picture reader in which the accuracy deterioration due to a stain of a roller in the density correction system using a white level density of a face of an original carrier roller as a reference level is avoided and an output change in a white density level caused by a temperature change or optical deterioration in an original reading photoelectric conversion element is corrected with high accuracy. CONSTITUTION:A shading correction photoelectric conversion element 3 and a white color member 4 covering the element 3 fixedly are provided to at least one outside of original reading photoelectric conversion elements 2, an output of the photoelectric conversion element 3 and a stored reference value are compared to obtain a temperature change or a secular change in the output thereby correcting the picture information from the photoelectric conversion elements 2 based on the change. Since it is not required to use an original carrier roller face for a reference of a white level density, an output change in the white density level is corrected with high accuracy without being affected of stain and it is not required to employ a special roller such as a Teflon coated roller and then the original carrying capability is ensured.

10. 发明专利

JPH05169693A THERMAL TRANSFER RECORDER 失效
公开(公告)号：JPH05169693A
公开(公告)日：1993-07-09
申请号：JP34065891
申请日：1991-12-24
申请人： HITACHI LTD
发明人： OHARA SHUNICHI , MATSUMOTO SHOGO , WATANABE MICHIHIRO
IPC分类号： B41J2/325 , B41J17/04 , B41J17/30
摘要： PURPOSE:To prevent an ink ribbon from slacking and wrinkling without applying a tension to obtain a high-quality image by a method wherein a pay-out roll and a take-up roll are rotated in accordance with the rotation of a platen roller by the frictional force with the platen roller. CONSTITUTION:Recotding paper 1 clamped between a platen roller 3 and an ink film 2 is fed to a position under a recording head 6. At this time, the recording paper 1 moves by the frictional force with the roller 3, and a pay-out roll 4 is rotated by the frictional force with the recording paper 1 to pay out the film 2. With the movement of the recording paper 1, heating elements on the head 6 generate heat in accordance with image signals to transfer ink provided on a film 2 to the recording paper 1 to form an image thereon. After passing under the head 6, the recording paper 1 and the film 2 still in contact with each other move to a position where a take-up roll 5 and the roller abut on each other, thereafter being separated from each other. After that, the roll 5 is rotated by the frictional force with the roller 3 and further the frictional force with the recording paper 1 to take up the film 2 by the same length as that paid out of the roll 4.

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