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1. 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.

2. 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.

3. 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.

4. 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.

5. 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.

6. 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.

7. 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.

8. 发明专利

JPH05165263A FACSIMILE EQUIPMENT 失效
公开(公告)号：JPH05165263A
公开(公告)日：1993-07-02
申请号：JP33030091
申请日：1991-12-13
申请人： HITACHI LTD
发明人： MATSUMOTO SHOGO , WATANABE MICHIHIRO , OBATA SHIGERU , YAMASHITA KYOICHI
IPC分类号： G03G15/00 , H04N1/00
摘要： PURPOSE:To provide a small-sized facsimile equipment capable of easily sorting series of output. CONSTITUTION:Image information is transmitted to a communication control part 32 through a line 38. Based on the image information, a control part 33 controls the recording element and the recording paper carrying mechanism of a recording part 36, so that the image of each page is recorded on a recording paper 1. In the case of printing the first or the last page of a series of transmitted information, a signal showing the reception of a series of image information or the finish of data transmission is recognized by the control part 33, which actuates a sorting action part 35 to put a mark 9 showing the break of a series of output. Thus, the small-sized facsimile equipment capable of easily sorting series of output is realized.

9. 发明专利

JPH04326659A FACSIMILE EQUIPMENT 失效
公开(公告)号：JPH04326659A
公开(公告)日：1992-11-16
申请号：JP9673391
申请日：1991-04-26
申请人： HITACHI LTD
发明人： AOYANAGI MASAHISA , SATOU KAZUYASU , FUKUDA HIROMITSU , KIYONO TASAKU , WATANABE MICHIHIRO , OOGA KIMIO
IPC分类号： H04N1/00 , H04N1/04 , H04N1/12
摘要： PURPOSE:To attain the use of an inexpensive original carrier motor with a low torque by preventing the increase in a carrier load and a defect read caused by contact or the like between a sensor roller and a glass plate in the case of reading the original with a narrower width when the sensor roller and the glass plate are in direct contact with other at original read and at original carrying. CONSTITUTION:A transparent film 3 is employed between a read original 1 and a glass plate 2 in the facsimile equipment in which the read original 1 is in press contact onto the glass plate 2, a light radiates from a light source to the read original 1 in press contact onto the sensor roller 4 and the glass plate 2 to carry the read original 1 through an LED 5 and a CCD 7 reads the reflected light via an optical path of mirrors 6a, 6b, 6c.

10. 发明专利

JPH04259571A THERMAL HEAD 失效
公开(公告)号：JPH04259571A
公开(公告)日：1992-09-16
申请号：JP2068091
申请日：1991-02-14
申请人： HITACHI LTD
发明人： SATOU KAZUYASU , WATANABE MICHIHIRO , AOYANAGI MASAHISA , KIYONO TASAKU , ATO KAZUHIKO
IPC分类号： B41J2/335
摘要： PURPOSE:To prevent the occurrence of a crack in a high-heat conductivity film which is provided in a protective film to reduce density unevenness in a thermal head used for a facsimile terminal equipment or a printer. CONSTITUTION:After a glaze layer 5, an electrode 4, and a resistor 3 are formed on an alumina substrate 6, a thin protective film 1 is formed so as to cover these layers. After that, a film 2 made of a mixture of a metal or metallic oxide with inorganic fine particle is provided correspondingly to a position substantially just above the resistor 3 on the protective film 1. Lastly, a protective film 1 is again formed so as to cover these layers.

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