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    1.
    发明专利
    未知

    公开(公告)号：DE602004025072D1

    公开(公告)日：2010-03-04

    申请号：DE602004025072

    申请日：2004-08-10

    Applicant: CANON KK

    Inventor： MARU AKIKO ,  TAJIKA HIROSHI ,  NISHIKORI HITOSHI ,  IDE DAISAKU ,  YAZAWA TAKESHI ,  MASUYAMA ATSUHIKO ,  YOSHIKAWA HIROKAZU ,  TAKAMIYA HIDEAKI

    IPC: B41J2/07 ,  B41J2/21 ,  B41J2/01 ,  G06K15/10

    Abstract: An ink-jet printing method, an ink-jet printing apparatus and an ink-jet printing system are proposed, which are free from the deterioration of color development effect even if a plurality of color inks are used, caused by the overlap of different color inks on a printing medium. For this purpose, when density data quantized to several ranks are converted finally to binary data by using predetermined dot arrangement patterns, a dot arrangement pattern different from those for other color inks is prepared for a particular color ink. Accordingly, it is possible to reduce as much as possible the probability in that the particular color ink is overlapped with the other inks on the printing medium, whereby the color development of the particular color ink is effectively facilitated.

    6.
    发明专利
    未知

    公开(公告)号：DE602007002223D1

    公开(公告)日：2009-10-15

    申请号：DE602007002223

    申请日：2007-06-11

    Applicant: CANON KK

    Inventor： SEKI SATOSHI ,  NISHIKORI HITOSHI ,  IDE DAISAKU ,  MIZOGUCHI YOSHITO ,  KOTAKI YASUO ,  OHASHI TETSUYA ,  INOUE RYOJI

    IPC: B41J2/175

    Abstract: The present invention provides an ink jet printing apparatus and a method for controlling an ink jet printing apparatus which, during a non-print operation excluding a print operation, can stir ink at a required time and to a required level according to the state of the ink in the ink tank. During a non-print operation excluding a print operation accompanied by a reciprocal movement of the carriage (M4000), a stir operation is executed to stir the ink in the ink tank (H1900) by reciprocating the carriage according to a stir mode. As the stir mode, one of different modes (A, B, C) is set according to an elapsed time from the previous stir operation.

    7.
    发明专利
    未知

    公开(公告)号：DE60132408T2

    公开(公告)日：2009-01-29

    申请号：DE60132408

    申请日：2001-09-03

    Applicant: CANON KK

    Inventor： KATO MASAO ,  MATSUMOTO NOBUYUKI ,  IDE DAISAKU ,  TAKADA YOICHI

    IPC: B41J2/21 ,  C09D11/00

    Abstract: The ink jet recording head 1 of the invention is provided with a black ink nozzle array Bkl for black ink constituting first ink, and plural color ink nozzle arrays C1 to C3 for discharging color inks. In a color ink nozzle array C1 having the shortest print distance from the black print formed by the black ink nozzle array Bkl, there is introduced a color ink showing the highest mutual reactivity with the black ink, and a color ink showing the next highest mutual reactivity is introduced into a nozzle array C2 having the next shortest print distance, and a color ink showing the lowest mutual reactivity is introduced into a nozzle array C3 having the longest print distance.

    8.
    发明专利
    未知

    公开(公告)号：AT383954T

    公开(公告)日：2008-02-15

    申请号：AT01121116

    申请日：2001-09-03

    Applicant: CANON KK

    Inventor： KATO MASAO ,  MATSUMOTO NOBUYUKI ,  IDE DAISAKU ,  TAKADA YOICHI

    IPC: B41J2/21 ,  C09D11/00

    Abstract: The ink jet recording head 1 of the invention is provided with a black ink nozzle array Bkl for black ink constituting first ink, and plural color ink nozzle arrays C1 to C3 for discharging color inks. In a color ink nozzle array C1 having the shortest print distance from the black print formed by the black ink nozzle array Bkl, there is introduced a color ink showing the highest mutual reactivity with the black ink, and a color ink showing the next highest mutual reactivity is introduced into a nozzle array C2 having the next shortest print distance, and a color ink showing the lowest mutual reactivity is introduced into a nozzle array C3 having the longest print distance.

    9.
    发明专利
    未知

    公开(公告)号：DE602005018277D1

    公开(公告)日：2010-01-28

    申请号：DE602005018277

    申请日：2005-01-25

    Applicant: CANON KK

    Inventor： IDE DAISAKU ,  TAJIKA HIROSHI ,  NISHIKORI HITOSHI ,  YAZAWA TAKESHI ,  MASUYAMA ATSUHIKO ,  MARU AKIKO ,  YOSHIKAWA HIROKAZU ,  TAKAMIYA HIDEAKI ,  NAKATANI AKIHIKO

    IPC: B41J2/01 ,  B41J2/21 ,  B41J2/14 ,  B41J19/14 ,  B41J29/38

    Abstract: An ink jet printing apparatus forms an image on a print medium (1) by making a print head carry out a plurality of scan motions over the print medium and by moving the print medium and the print head relative to each other a width of a predetermined area in a direction different from a direction of the scan motion of the print head. The print head has an array of a plurality of nozzle rows (11Lm,11R,11Bk,11G,11Lc,11C,11M,11Y) corresponding to the required number of colors of ink to be ejected. Each nozzle row includes a plurality of nozzles. The ink jet printing apparatus can select one print mode among a plurality of print modes including a monochrome print mode and a color print mode. The monochrome print mode uses a plurality of colors of ink including a black ink, and the color print mode uses a number of colors of ink greater than in the monochrome print mode. The scan motion of the print head and the movement of the print medium and the print head relative to each other are controlled according to the selected print mode so that the scan motions with ink ejection being carried out both in a first and second directions of the scan motion when the color print mode is selected, and the scan motions with ink ejection are carried out only in the first direction of the direction of the scan motion when the monochrome print mode is selected.

    10.
    发明专利
    未知

    公开(公告)号：DE60321516D1

    公开(公告)日：2008-07-24

    申请号：DE60321516

    申请日：2003-08-27

    Applicant: CANON KK

    Inventor： KONNO YUJI ,  TAJIKA HIROSHI ,  IDE DAISAKU ,  YAZAWA TAKESHI ,  MASUYAMA ATSUHIKO ,  MARU AKIKO

    IPC: B41J2/21 ,  B41J19/14

    Abstract: For a horizontally arranged head in which nozzle rows are arranged parallel with a scanning direction of the print head, two of a plurality of ink colors used which have the largest hue difference are selected. Then, between the nozzle rows for these two colors, at least two nozzle rows for other colors are arranged so that the first nozzle row for the two colors have a large inter-nozzle-row distance. Then, the resulting print head is used for printing. If cyan, light cyan, magenta, light magenta, yellow, and black are used as ink colors, the light cyan, black, yellow, and light magenta inks are arranged between the cyan and magenta inks, having a large hue difference.

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