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81. 发明专利

JPH06321375A AUTOMATIC PAPER FEEDING DEVICE, AND FACSIMILE DEVICE AND COPYING MACHINE WITH ITS AUTOMATIC PAPER FEEDING DEVICE 失效
公开(公告)号：JPH06321375A
公开(公告)日：1994-11-22
申请号：JP8429593
申请日：1993-04-12
申请人： HITACHI LTD
发明人： FUKUDA HIROMITSU , HAGIWARA NORIAKI , SATOU KAZUYASU , KIYONO TASAKU , OKI KATSUO , AOYANAGI MASAHISA , OGA KIMIO , SHIMIZU AKIRA , NARUI YOICHI , SUZUKI TSUGIO
IPC分类号： B65H1/04 , B65H3/52 , B65H31/00 , G03G15/00 , H04N1/00
摘要： PURPOSE:To prevent documents from being double-fed, fed aslant, and slipped when multiple documents are put on a sheet feeding tray and sheet feeding guide, in an automatic paper feeding device which separates and transfers the documents by pressing a separation pad against a document transfer roller. CONSTITUTION:A separation pad 2 is pressed against a document transfer roller 3 through a projected part 8 provided on the separation pad 2 side of a separation pad holder 1. The projected part 8 is located approximately at the lateral contact width center position of the separation pad 2 with the document transfer roller 3 in the direction of normal line to the separation pad 2 to transfer a pressing force N applied to the separation pad holder 1 by a spring 5 efficiently to a separation part.

82. 发明专利

JPH06276366A ORIGINAL READER AND SHADING CORRECTION SYSTEM 失效
公开(公告)号：JPH06276366A
公开(公告)日：1994-09-30
申请号：JP5819293
申请日：1993-03-18
申请人： HITACHI LTD
发明人： OZAWA NAOHIRO , OTSUKA YASUO , SHIMIZU AKIRA , NARUI YOICHI , MINODA HIROSHI , SHINODA SHINICHI , SATOU KAZUYASU
IPC分类号： B41J13/02 , H04N1/04 , H04N1/19
摘要： PURPOSE:To obtain the reader in which a carrier roller is saved by using an original separation roller to carry an original up to a read means and shading correction is executed based on an optimum white level reference and the original is read with high accuracy. CONSTITUTION:A carrier roller 8 is provided on a read means 10 or downstream thereof and an original position detection means 7 is provided upstream of the carrier roller 8. Furthermore, when a complete close contact type sensor is employed for the read means 10, a white reference section 9 is formed on the carrier roller 8 and entire shading correction is executed based on white reference levels by plural lines at a white reference correction means. Moreover, a carrier auxiliary means whose friction coefficient with respect to an original is set lower than that of an original separate means 4 is provided in contact with the paper feed roller 3 by pressing.

83. 发明专利

JPH06245023A FACSIMILE EQUIPMENT 失效
公开(公告)号：JPH06245023A
公开(公告)日：1994-09-02
申请号：JP3008893
申请日：1993-02-19
申请人： HITACHI LTD
发明人： FUKUDA HIROMITSU , HAGIWARA NORIAKI , SATOU KAZUYASU , KIYONO TASAKU , OKI KATSUO , AOYANAGI MASAHISA , OGA KIMIO , SHIMIZU AKIRA , NARUI YOICHI , SUZUKI TSUGIO
IPC分类号： B65H5/06 , H04N1/00 , H04N1/23 , H04N1/31
摘要： PURPOSE:To attain the miniaturization of an equipment and to reduce its cost by driving an automatic feeding part except the recording part and the reading part of a basic function by a single motor and to improve operation convenience by adding a automatic feeding function. CONSTITUTION:This equipment is provided with a first power transmission system composed of transmission gears 8 to 11 transmitting driving force from the motor 1 to each part, a second power transmission system composed of transmission gears 14 to 17 driving a platen roller 2, a third power transmission system composed of transmission gears 14 to 17 driving an original carrying roller 3 and a fourth power transmission system which is composed of transmission gears 23 to 27 and is branched from the third power transmission system to drive an automatic feeding roller 4. Among them, the transmission gear 11 is provided with rotation gears 11 and 13 which are fitted rotatably around it and the positions of them can be set by a solenoid 28. Thereby, transmission, reception and copy can be executed only by the motor 1 of a driving source and furthermore, plural originals can continuously be transmitted and copied by the automatic feeding function.

84. 发明专利

JPH0453762A CONTROLLING METHOD FOR PREHEATING OF THERMAL TRANSFER PRINTER 失效
公开(公告)号：JPH0453762A
公开(公告)日：1992-02-21
申请号：JP16261190
申请日：1990-06-22
申请人： HITACHI LTD
发明人： WATANABE KATSUMI , YOSHIDA TAKASHI , SHIMIZU ISAO , MATSUDA YASUHIRO , SHIMIZU AKIRA , YOSHIDA MASASHI
IPC分类号： B41J2/38
摘要： PURPOSE:To prevent a time required for recording from becoming long wastefully and preventing a recording sheet from being recorded by mistake due to the heat storage of a thermal element by electrically heating all the thermal elements of a thermal head in parallel with the control to move a recording sheet to a recording start position and recording an image signal on the recording sheet during a monochromatic recording and a plurality of times of superimposed recording processes. CONSTITUTION:If a thermal element is allowed to generate heat at every fixed cycle as a thermal head preheating method, a single line printing command signal 455 is entered to an energization control circuit 400 from a signal bus 316, and subsequently transfers transfer data for causing all bits to generate heat, synchronized with a transfer clock 40, to a shift register 436. In addition, the circuit 400 outputs a latch signal to a latch 437 and outputs an energization pulse 401 to a driver 438, and data located at a one preceding line and already transferred to the shift register 436 is entered in the driver 438. Finally the driver 438 is driven by an energization pulse 40 and a thermal element 438 generates heat.

85. 发明专利

JPH02282142A AUTOMATIC PAPER FEED MECHANISM 失效
公开(公告)号：JPH02282142A
公开(公告)日：1990-11-19
申请号：JP10002489
申请日：1989-04-21
申请人： HITACHI LTD
发明人： SUZUKI TSUGIO , SHIMIZU AKIRA
IPC分类号： B41J13/00 , B41J15/04 , B65H19/10 , B65H20/02
摘要： PURPOSE:To automatically feed recording paper sheets after setting there without staining its recording surface by providing three kinds of modes in two sets of paired paper feed rollers. CONSTITUTION:When recording paper is set, of the plurality of paired rollers (15a, 15b), (16a, 16b) in the upstream side of a platen roller, the paired rollers (15a, 15b) in the uppermost stream are placed in a detached condition. Consequently, a point end of the recording paper sheet 7 is easily placed in the rollers, and the recording paper sheet 7 is prevented from being stained on its recording surface side. Next the recording paper sheet 7 is held successively by the plurality of paired rollers (15a, 15b), (16a, 16b), conveyed and discharged to the downstream side of the platen roller. In this way, no erroneous mounting of the recording paper sheets and no stain in their recording surfaces may be generated at all.

86. 发明专利

JPH01218867A FEED MECHANISM OF THERMAL TRANSFER RECORDING APPARATUS 失效
公开(公告)号：JPH01218867A
公开(公告)日：1989-09-01
申请号：JP4439588
申请日：1988-02-29
申请人： HITACHI LTD
发明人： TAKEDA FUMIO , FUKUDA HIROMITSU , SHIMIZU AKIRA
IPC分类号： B41J13/02 , B41J11/00 , B41J13/10
摘要： PURPOSE:To simplify a shaft support structure and to perform retraction simultaneously by one set of a belt mechanism and an auxiliary roller mechanism, by making the outer diameter of the roller of a belt smaller than that of an auxiliary roller and engaging the shaft of the belt roller with that of the auxiliary roller to integrate both of them. CONSTITUTION:A recording medium 4 is wound around the outer periphery of a platen roller 1 and both sides of the recording medium 4 are wound around said roller 1 by loop like elastic belts 12 to be pressed thereto. The elastic belts 12 are provided under tension by the belt rollers 10, each of which has an outer diameter smaller than that of each of two auxiliary rollers 8, engaged with the shafts 9 of said rollers 8 and the belt roller 10 supported by other rotary shaft 11 so that the inner peripheral surfaces of the elastic belts 12 are not brought into contact with each other. The auxiliary rollers 8 press the recording medium 4 to the platen. roller 1 by spring force. Therefore, the recording medium 4 is fed with the rotation of the platen roller 1 while pressed in a line form on both sides thereof by the elastic belts 12.

87. 发明专利

JPS62271770A PAPER-CUTTING MECHANISM IN PRINTER 失效
公开(公告)号：JPS62271770A
公开(公告)日：1987-11-26
申请号：JP11456586
申请日：1986-05-21
申请人： HITACHI LTD
发明人： NARUI YOICHI , SHIMIZU AKIRA
IPC分类号： B41J11/66
摘要： PURPOSE:To securely make a cut in a rolled paper and enable easy cutting of the paper, by providing a pressing member for pressing a guide wall for the rolled paper and causing the pressing member to press the rolled paper when cutting the paper. CONSTITUTION:With a cutting command outputted from a controlling circuit, a motor 5 is rotated, a driving force thereof is transmitted to a feed screw 3, and the movement a carrier 2 is started. A pressing member 6 is started for moving with the movement of the carrier 2, and when the member 6 reaches a position on a rolled paper 10, the paper is pressed against a paper guide 11, 12 by an elastic force of the member 6. With a further movement, an edge 7a of a cutter 7 comes into contact with the paper 10. Since the paper 10 is pressed against the paper guide 11, 12 by the member 6, the stiffness of the paper in a paper-cutting direction in the vicinity of the point of contact can be enhanced, and a cut can be easily made in the paper without bending the paper, even where the edge of the cutter 7 is not so sharp. When the cutting of the paper 10 proceeds to completion, the motor 5 is reversely rotated to return the carrier 2, whereby a cutting operation is finished.

88. 发明专利

JPS62124985A INK FILM 失效
公开(公告)号：JPS62124985A
公开(公告)日：1987-06-06
申请号：JP26379085
申请日：1985-11-26
申请人： HITACHI LTD
发明人： SHIMIZU AKIRA , YOSHIDA MASASHI
IPC分类号： B41M5/26 , B41M5/30 , B41M5/382 , B41M5/392
摘要： PURPOSE:To obtain an ink film which makes it possible to detect the residual amount thereof without increasing the number of component parts of a hard copying device, by providing a mark indicative of capacity at a part immediately preceding a marker for positioning the leading end of a block of the ink film. CONSTITUTION:A bar code 1b consisting of markers 1c, 1d, 1e is provided on an ink film at a part immediately before a marker 1a for positioning the leading end of a block of the ink film. The bar code 1b indicates the capacity of the ink film, the capacity varying with, for example, the ratio of the spacing between he markers 1c and 1d to the spacing between the markers 1d and 1e. The bar code 1b is detected by a sensor 4 of a hard copying device. Accordingly, the capacity of the ink film can be detected when using the ink film, and the residual amount of the ink film can be detected by counting the number of times of printing.

89. 发明专利

JPS61229575A THERMAL RECORDER 失效
公开(公告)号：JPS61229575A
公开(公告)日：1986-10-13
申请号：JP7083785
申请日：1985-04-05
申请人： HITACHI LTD
发明人： SHIMIZU AKIRA , YOSHIDA MASASHI
IPC分类号： B41J2/36 , B41J2/32 , B41J2/325 , B41J17/32
摘要： PURPOSE:To prevent errors in use from being generated, by automatically switching a recording mode in accordance with whether or not an ink paper enclosed in a cassette is mounted, in a thermal recorder capable of both thermal transfer recording and thermal recording. CONSTITUTION:The ink paper cassette 5 is supported by a cassette base 7 and a switch base 8, with a winding core 2 fitted to a reel base 9. Simultaneously, a recording mode detecting switch 10 is closed under the weight of the cassette 5, thereby giving a command for thermal transfer recording mode to a head 11. In the case of thermal recording, where the cassette 5 is not required, the switch 10 is opened to give a command for a thermal recording mode to the head 11. Accordingly, misuse problems are prevented from being generated in the case where the user has forgotten to place an ink paper in position at the time of thermal transfer recording, the case where the ink paper is left in position at the time of thermal recording or in other similar occasions.

90. 发明专利

JPS60185243A DRIVING DEVICE OF TAPE RECORDER 失效
公开(公告)号：JPS60185243A
公开(公告)日：1985-09-20
申请号：JP3854684
申请日：1984-03-02
申请人： HITACHI LTD
发明人： USUI KATSUO , KOBAYASHI SATORU , SHIMIZU AKIRA
IPC分类号： G11B15/44
摘要： PURPOSE:To reduce the noise of gears by engaging a rapid traverse idler gear with a rapid traverse gear when the rapid traverse idler gear is oscillated on one side, and when oscillated on the other side, engaging the fast feed idler gear with an intermediate idler gear engaged with a rewinding gear, and oscillating a reproducing idler gear by another arm. CONSTITUTION:A rapid traverse arm 24 is pivoted around a supporting shaft of an intermediate pulley 3, and in a stopped state, the leading end 241 of the rapid traverse arm 24 is located on the intermediate position of a guide hole 271 of a substrate 27. When a reproducing button 48 is depressed under said state, a reproducing arm 30 is rotated in the clockwise direction and the reproducing idler gear 34 is engaged with a reproducing gear 19. When a rapid traverse button 45 is depressed from the stopped state, the rapid traverse arm 24 is rotated in the clockwise direction and a high-speed gear 262 is engaged with the rapid traverse gear 18. When a rewinding button 41 is depressed from the stopped state, the rapid traverse arm 24 is rotated in the counterclockwise direction through a rewinding arm 28, the high-speed gear 262 is engaged with a rewinding idler gear 31 and the rotation is transmitted to the rewinding gear 21.

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