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    1.
    发明专利
    未知

    公开(公告)号：CH600442A5

    公开(公告)日：1978-06-15

    申请号：CH1425675

    申请日：1975-11-05

    Applicant: IBM

    Inventor： FINDLEY GERALD IVAN

    IPC: B41B19/00 ,  B41J2/44 ,  B41J5/30 ,  G06F3/12 ,  G06K15/00 ,  G06K15/12 ,  G06K15/02 ,  B41J3/16 ,  B41J3/58

    Abstract: In a buffered printer in which lines of character code bytes representing characters to be printed are translated into lines of graphic code bytes by a translate table, assembled into a page format in a page buffer and applied to a character generator module to select sets of character image bits in storage locations within the module corresponding to the graphic code bytes, the selected sets of character image bits being applied to modulate a scanning laser beam to effect printing of the desired characters, each line of graphic code bytes provided by the translate table is entered into the page buffer in a selected location determined by a channel command associated with the previously entered line. Each "write and no space" command accompanying a line of graphic code bytes stored in the page buffer results in the immediately following line of graphic code bytes being stored in the same location. The two different lines are combined in accordance with a merge algorithm. A "write and space one line" command accompanying a line of graphic code bytes stored in the page buffer results in the next line of graphic code bytes being stored in the next line of graphic code bytes being stored in the next available storage location within the page buffer. The lines of graphic code bytes as so assembled in the page buffer are thereafter applied, one line at a time, to the character generator module to effect printing of the various characters represented by the graphic code bytes. The printing arrangement may be provided with plural translate tables to provide for printing of different characters in the same line using the same character code byte. Two or more lines, each containing the same character code byte, are directed by the associated channel commands into different ones of the translate tables for conversion of the character code byte into different graphic code bytes in the two resulting lines of graphic code bytes. The two lines of graphic code bytes are merged into a single line in the page buffer, following which the two different graphic code bytes are applied to the character generator module to effect printing of the two different characters represented thereby.

    2.
    发明专利
    未知

    公开(公告)号：DE2550212A1

    公开(公告)日：1976-05-13

    申请号：DE2550212

    申请日：1975-11-08

    Applicant: IBM

    Inventor： FINDLEY GERALD IVAN

    IPC: B41B19/00 ,  B41J2/44 ,  B41J5/30 ,  G06F3/12 ,  G06K15/00 ,  G06K15/12 ,  G06K15/02

    Abstract: In a buffered printer in which lines of character code bytes representing characters to be printed are translated into lines of graphic code bytes by a translate table, assembled into a page format in a page buffer and applied to a character generator module to select sets of character image bits in storage locations within the module corresponding to the graphic code bytes, the selected sets of character image bits being applied to modulate a scanning laser beam to effect printing of the desired characters, each line of graphic code bytes provided by the translate table is entered into the page buffer in a selected location determined by a channel command associated with the previously entered line. Each "write and no space" command accompanying a line of graphic code bytes stored in the page buffer results in the immediately following line of graphic code bytes being stored in the same location. The two different lines are combined in accordance with a merge algorithm. A "write and space one line" command accompanying a line of graphic code bytes stored in the page buffer results in the next line of graphic code bytes being stored in the next line of graphic code bytes being stored in the next available storage location within the page buffer. The lines of graphic code bytes as so assembled in the page buffer are thereafter applied, one line at a time, to the character generator module to effect printing of the various characters represented by the graphic code bytes. The printing arrangement may be provided with plural translate tables to provide for printing of different characters in the same line using the same character code byte. Two or more lines, each containing the same character code byte, are directed by the associated channel commands into different ones of the translate tables for conversion of the character code byte into different graphic code bytes in the two resulting lines of graphic code bytes. The two lines of graphic code bytes are merged into a single line in the page buffer, following which the two different graphic code bytes are applied to the character generator module to effect printing of the two different characters represented thereby.

    6.
    发明专利
    未知

    公开(公告)号：DE2549792A1

    公开(公告)日：1976-05-13

    申请号：DE2549792

    申请日：1975-11-06

    Applicant: IBM

    Inventor： FINDLEY GERALD IVAN ,  CUMMINGS KENNETH DEAN ,  ANDERSON TEDDY LEE

    IPC: B41B19/00 ,  B41J2/44 ,  B41J2/485 ,  B41J5/30 ,  G03G15/22 ,  G06F3/12 ,  G06K15/12 ,  H04N1/23 ,  B41J5/40

    Abstract: In a printer in which character code bytes representing characters to be printed are translated into graphic code bytes, assembled into lines and pages, and thereafter used to select character image bits which are applied to modulate a scanning laser beam and thereby effect printing of the characters, the pitch of each character is determined independently of other characters in each line being printed by pitch bits included in the sets of character image bits. As each scan line of modulation bits from a set of character image bits is selected for use in modulating the laser beam, the pitch bit included within the bits is examined to determine whether the width of the charactor is to be a maximum or some value less than the maximum. For the maximum width all of the modulation bits are applied to modulate the laser beam, while for a character cell width less than the maximum, only a selected number of the modulation bits are used to modulate the laser beam. An oscillator maintains a constant clock rate for the system as it defines modulation periods for the individual bits, while associated timing circuitry controls the serial flow of selected modulation bits to modulate the laser beam as well as the successive addressing of the different graphic code bytes in the line being printed.

    8.
    发明专利
    未知

    公开(公告)号：CH598956A5

    公开(公告)日：1978-05-12

    申请号：CH1414875

    申请日：1975-11-03

    Applicant: IBM

    Inventor： FINDLEY GERALD IVAN ,  HILL MORGAN ,  CUMMINGS KENNETH DEAN ,  ANDERSON TEDDY LEE

    IPC: B41B19/00 ,  B41J2/44 ,  B41J2/485 ,  B41J5/30 ,  G03G15/22 ,  G06F3/12 ,  G06K15/12 ,  H04N1/23 ,  B41J3/12 ,  B41J5/44 ,  G06K15/10

    Abstract: In a printer in which character code bytes representing characters to be printed are translated into graphic code bytes, assembled into lines and pages, and thereafter used to select character image bits which are applied to modulate a scanning laser beam and thereby effect printing of the characters, the pitch of each character is determined independently of other characters in each line being printed by pitch bits included in the sets of character image bits. As each scan line of modulation bits from a set of character image bits is selected for use in modulating the laser beam, the pitch bit included within the bits is examined to determine whether the width of the charactor is to be a maximum or some value less than the maximum. For the maximum width all of the modulation bits are applied to modulate the laser beam, while for a character cell width less than the maximum, only a selected number of the modulation bits are used to modulate the laser beam. An oscillator maintains a constant clock rate for the system as it defines modulation periods for the individual bits, while associated timing circuitry controls the serial flow of selected modulation bits to modulate the laser beam as well as the successive addressing of the different graphic code bytes in the line being printed.

    10.
    发明专利
    未知

    公开(公告)号：DE2548145A1

    公开(公告)日：1976-05-13

    申请号：DE2548145

    申请日：1975-10-28

    Applicant: IBM

    Inventor： FINDLEY GERALD IVAN ,  ANDERSON TEDDY LEE

    IPC: B41J2/44 ,  B41B19/00 ,  B41J5/30 ,  B41J29/50 ,  G03G15/22 ,  G06F3/12 ,  G06F17/21 ,  G06K15/10 ,  G09G5/00 ,  H04N1/23 ,  G06K15/14 ,  G06F3/00

    Abstract: In a buffered printer in which lines of graphic code bytes representing characters to be printed are successively advanced to a line buffer where they are sequentially sampled and the results used to modulate a laser beam undergoing successive scans of a printable medium to effect printing of the characters, an arrangement is provided for determining the size of the lefthand margin of the printable medium and the location adjacent the right-hand edge of the printable medium where printing is to be terminated. The arrangement sums count values representing a fixed offset adjacent the left edge of the printable medium and the distance between the end of the fixed offset and the horizontal location of the desired margin as determined by plural panel mounted switches to provide a first count which is carried out beginning with the start of each scan of the laser beam. Upon termination of the first count, sampling of the graphic code bytes and modulation of the laser beam are initiated simultaneously with the beginning of a second count representing the width of the printable medium minus the count value from the panel mounted switches. Upon completion of the second count, sampling of the graphic code bytes and modulation of the laser beam are terminated until the next scan is begun.

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