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1. 发明专利

JPS62105642A CONTROLLER FOR DOT MATRIX PRINTER 失效
公开(公告)号：JPS62105642A
公开(公告)日：1987-05-16
申请号：JP24642485
申请日：1985-11-05
申请人： HITACHI LTD
发明人： INAO HIROTOSHI , HATASAWA KIKUO
IPC分类号： G06K15/10 , B41J2/485 , G06F3/12
摘要： PURPOSE:To increase general printing speed by directly writing image data matched to a high dot density print in a high density full dot memory, and simply enlarging the data by a density converter to thereby shorten time required to develop data in the full dot memory. CONSTITUTION:The dot density of a high density print is twice as large as a low density print. A high density full dot memory 7 can store a page image for high density print, and has a capacity four times as large as a low density full dot memory 8. The page image read out from the memory 7 and the page image presented at the output of a density converter 9 are combined by a superposing circuit 10 in sole high density page image, and supplied through a selector 11 controlled to select the output of the circuit 10 in this mode to a high density dot matrix printer 3. Thus, time required to develop the data in the full dot memory can be largely shortened to remarkably improve the general printing speed.

2. 发明专利

JPS59161965A Data writing system of picture memory 失效
标题翻译：图像存储器的数据写入系统
公开(公告)号：JPS59161965A
公开(公告)日：1984-09-12
申请号：JP3603383
申请日：1983-03-07
申请人： Hitachi Ltd , Hitachi Software Eng Co Ltd
发明人： HATASAWA KIKUO , MORITA TOSHIKI
IPC分类号： H04N1/21 , G06F3/153 , H04N1/00
CPC分类号： H04N1/00
摘要： PURPOSE:To reduce greatly the data writing time to a picture memory by producing two black data covering start and end positions of a black run through the word end position and inverting the latter to obtain an AND with the former. CONSTITUTION:Both start and end positions Ab and Ae of a black run detected by a detector (not shown in the figure) for position of changed picture element are held temporarily at registers 20 and 22 and then supplied to a black run generator 26 via a multiplexer 24. The output of the generator 26 is applied to a register 28, and the picture data on each word is delivered to a picture memory from the register 28. The positions Ab and Ae held at registers 20 and 22 are supplied to a comparator 30, and this comparison output is supplied to a control circuit 32. The contents of the register 28 are also supplied to the circuit 32. Based on this control signal, an AND is obtained with the data obtained by inverting the output of the register 28 at the generator 26. This AND data is produced as the picture data.
摘要翻译：目的：通过产生两个黑色数据来大大减少图像存储器的数据写入时间，这两个黑色数据覆盖了通过字末端位置的黑色运行的开始和结束位置，并将其反转，以获得与前者的AND。构成：对于改变后的图像元素的位置的检测器（图中未示出）检测到的黑色行程的起始位置和结束位置Ab和Ae暂时保持在寄存器20和22中，然后经由发生器26的输出被施加到寄存器28，并且每个字的图像数据从寄存器28被传送到图像存储器。保持在寄存器20和22的位置Ab和Ae被提供给比较器 30，并且该比较输出被提供给控制电路32.寄存器28的内容也被提供给电路32.基于该控制信号，通过将寄存器28的输出反相而获得的数据获得AND 该发生器26产生该AND数据作为图像数据。

3. 发明专利

JPS58110255A CONTROLLER FOR PRINTER 失效
公开(公告)号：JPS58110255A
公开(公告)日：1983-06-30
申请号：JP20921681
申请日：1981-12-25
申请人： HITACHI LTD
发明人： HATASAWA KIKUO
IPC分类号： B41J2/44 , B41J2/485 , G06F17/21 , G06K15/02 , G06K15/12 , H04N1/23
摘要： PURPOSE:To prevent the decrease of the effective printing width of the printer by arranging and housing character patterns along the direction of sheets of paper different only by the angle of 90 deg.C from the directon of scanning of a raster. CONSTITUTION:The address 3,200X3,191 of a page memory is used as an origin, a Y axis is taken in the direction that virtual raster number increases, an X axis is taken in the direction that the positions of printing dots rise in virtual rasters, the positions of dots in the coordinate system are expressed in (Xv, Yv), and the alotting addresses A of the character patterns are expressed in A=3,200X3,191+Yv-3,200Xv. The 31st dot line of character patterns are transferred up to addresses Ai-Ai+31, the 30th dot line of character patterns are transferred up to addresses (Ai-3,200)-(Ai-3,200)+31, and the process is continued, thus preventing the decrease of the effective printing width of the printer.

4. 发明专利

JPS57162040A DATA CHECKING SYSTEM 失效
公开(公告)号：JPS57162040A
公开(公告)日：1982-10-05
申请号：JP4753081
申请日：1981-03-31
申请人： HITACHI LTD , HITACHI SOFTWARE ENG
发明人： HATASAWA KIKUO , MORITA TOSHIKI
IPC分类号： G06F11/10 , G11B20/18 , H03M13/00 , H03M13/09
摘要： PURPOSE:To prevent display of an error frame, by accumulating a generation cyclic code of each data unit, obtaining a cyclic code of a data string having prescribed length, and checking the data string by use of its cyclic code. CONSTITUTION:A continuation/non-continuation mode indicating FF11 is set or reset by a continuation mode of a non-continuation mode indicated by a command signal in advance. Also, a series data read out from a magnetic disk, etc. is provided to an AND gate 13 by a clock synchronizing with the data, its series data is inputted to a cyclic code generating circuit 10 through the gate 13, is subtracted by a generating polynomial in accordance with a data lock enable signal, and its division is executed until the final data in the sector. Subsequently, immediately before the next first data is obtained, a cyclic code of a data string having prescribed length is obtained by referring to a state of the FF11 by the circuit 10, and after read-out of the indicated data has been completed, and cyclic code is outputted, and display of an error frame is prevented.

5. 发明专利

JPS56156856A PRINTER 失效
公开(公告)号：JPS56156856A
公开(公告)日：1981-12-03
申请号：JP6065380
申请日：1980-05-09
申请人： HITACHI LTD
发明人： ABE AKIRA , HATASAWA KIKUO , OONO MITSUO
IPC分类号： G02B26/10 , B41J2/44 , G02B27/00 , G03B27/32 , G03G15/04 , G03G15/22 , G06K15/12 , H04N1/23
摘要： PURPOSE:To control the laser beam so as to overlap laser beam on respective rasters in upper and lower parts, and to narrow the width of the scanning line of the black part if the black part exists on the scanning line by changing power of when raster scanning of the modulated laser beam. CONSTITUTION:Laser generating device 12 generates the modulated laser beam like a semiconductor laser. The laser beam modulated by print information is reflected by polyhedral mirror 13 rotated by motor 14 and scans on drum 11 to form a latent image. At this scanning time, lines 1, 2, 3, etc. are scanned overlapping one another so as to avoid the part which is not exposed to light is generated due to slippage of lines. For the purpose of preventing the part, which is not exposed to light, from becoming a narrow line if this part exists, power of the semiconductor laser is changed to narrow to width of the scanning line of the black part when the black part exists on the scanning line.

6. 发明专利

JPS56156855A PRINT CONTROL SYSTEM 失效
公开(公告)号：JPS56156855A
公开(公告)日：1981-12-03
申请号：JP6065280
申请日：1980-05-09
申请人： HITACHI LTD
发明人： OONO MITSUO , HATASAWA KIKUO , ABE AKIRA
IPC分类号： G02B26/10 , B41J2/44 , G03G15/04 , G03G15/22 , G06K15/12
摘要： PURPOSE:To make high-quality print possible, by scanning the laser beam only in a part, which overlaps with upper and lower rasters whose print information indicate that photosensitive materials should be exposed to light, between rasters due to print information. CONSTITUTION:Light 54 modulated by print information is rotated by scanner 52 and is scanned on photoreceptor 53. Rasters 57 due to raster print information and synthetic rasters 58 due to synthesis of preceding and succeeding print information are formed on the drum, and picture data is generated by causing parts of the space on the print form, namely, parts, which shold be exposed to light, and other parts to correspond to information 1 and 0 respectively; and if the light is irradiated to the drum only for information 1, synthetic rasters 58 are exposed to light only when upper and lower rasters have information 1.

7. 发明专利

JPS5667857A PAPER DRYER OF PRINTER 失效
公开(公告)号：JPS5667857A
公开(公告)日：1981-06-08
申请号：JP14333079
申请日：1979-11-07
申请人： HITACHI LTD
发明人： EZAKI SATORU , HATASAWA KIKUO
IPC分类号： B65H31/00 , G03B27/00 , G03G15/00 , G03G15/22
摘要： PURPOSE:To make possible the drying that can cope with high speed printing by blowing warm wind to the direction along the paper plane from both sides of a stacker which receives successively led-out sheets of paper thereby keeping plural sheets afloat at all times and performing drying. CONSTITUTION:A stacker 10 which receives and contains printed paper 2 let off from a printer body 11 by way of guide rollers 5 and a warm wind device 9 which generates warm wind of 80-100 deg.C by means of a fan 7 and a heater 8 are provided. The blow-ports of the blast ducts 6 which are provided on both sides of the stacker 10 and are provided with the blow-holes for blowing the warm wind from the warm wind device 9 to the direction along the plane of the paper 2 from the sides of the paper 2 on the stacker 10 are provided in the length corresponding to the length of the paper contained in the stacker 10. Further, the paper 2 is adjusted as low as the jam of the paper does not occur and as high as 4-5 sheets of the upper paper float at a 1-2cm spacing by a paper retainer 12 for retaining the paper downward by a fixed amount from the position AA'.

8. 发明专利

JPS55108045A DATA CONVERSION SYSTEM 失效
公开(公告)号：JPS55108045A
公开(公告)日：1980-08-19
申请号：JP1423579
申请日：1979-02-13
申请人： HITACHI LTD
发明人： HATASAWA KIKUO
IPC分类号： G06F3/153 , G06T11/20 , G09G1/00 , G09G5/20
摘要： PURPOSE:To keep constant the thickness of line independently of the slope of vector, by filling in dots to the position shifted either one direction of X or Y axis depending on the degree of slope of line. CONSTITUTION:As to the horizontal straight line and the line tilted by 30 deg., the extension dots are filled under the effective dots, e.g., at the position plus 1 toward Y direction. As to the straight line of 45 deg. and 60 deg., the dots are filled at the right of the effective dot, i.e., the position plus 1 toward X direction. Thus, the change in the width of the line due to the slope angle can be made small, and this effect is eminent as the slope angle of the line is greater. Further, the selection is not limited to 45 deg., but it is decided according to the nature of the straight line being the objective of conversion.

9. 发明专利

JPS5316541A PRINT DATA CONTROLLER 失效
公开(公告)号：JPS5316541A
公开(公告)日：1978-02-15
申请号：JP9035876
申请日：1976-07-30
申请人： HITACHI LTD
发明人： TAGUCHI KAZUYOSHI , HATASAWA KIKUO
IPC分类号： G06F3/12 , B41J5/44 , G06F3/00 , G06F3/13 , G06F13/00 , G06K15/10 , G11C7/00
摘要： PURPOSE:To obtain a controller unit which supplies a print information with a high-speed and simple structure by housing the edited print information to an external and large-capacity memory such as a magnetic disc, etc. and reading partially to a small-capacity memory to transfer it to a printer.

10. 发明专利

JPS63125352A PRINTING DATA CONTROL SYSTEM 失效
公开(公告)号：JPS63125352A
公开(公告)日：1988-05-28
申请号：JP27162386
申请日：1986-11-14
申请人： HITACHI LTD , HITACHI KOKI KK
发明人： TSUKADA MASAYUKI , HATASAWA KIKUO
IPC分类号： G06K15/10 , B41J2/485 , B41J3/60 , B41J29/50 , G06F3/12
摘要： PURPOSE:To allow a user to arbitrarily file a printing system in either one of a top-binding system and a side-binding system, by indicating the binding position and front or back surface printing of paper and controlling the development of printing data on a full dot memory and the feed-out order thereof from the full dot memory to a printing part on the basis of indication. CONSTITUTION:A flag showing the front and back of a page is contained in printing data and set to a page front and back flag register 102. Paper binding position data composed of top-binding, side-binding, the width of a blank part or the like are stored in a paper binding position data register 103. A character contraction operator 104 operates contraction quantity for contracting a character vertically or horizontally on the basis of paper binding position data. This contraction quantity is sent to a character contraction device 105 and printing data are contracted vertically or horizontally. The printing data passing through the character contraction device 105 are developed on a full dot memory (FDM) 107 under the control of an FDM developing address operator 106 and read under the control of an FDM reading address operator 108 to be sent to a printer 109.

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