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    4.
    发明专利
    未知

    公开(公告)号：DE69333481T2

    公开(公告)日：2005-03-24

    申请号：DE69333481

    申请日：1993-10-08

    Applicant: CANON KK

    Inventor： OTSUKA NAOJI ,  ARAI ATSUSHI ,  YANO KENTARO ,  TAKAHASHI KIICHIRO ,  NISHIKORI HITOSHI ,  IWASAKI OSAMU

    IPC: B41J2/055 ,  B41J2/14 ,  B41J2/19

    Abstract: An ink jet print head includes ink ejection outlets (5,6,7,8) for ejecting ink, passages communicating with the ejection outlets; a common chamber (9) for supplying the ink to the passages; ejection energy generating elements (3) for producing energy for ejecting the ink; an ink supply passage for supplying the ink to the common chamber; a buffering chamber (13) disposed at a position through which a pressure wave resulting from driving of the ejection energy generating elements (3) propagate, the buffering chamber containing a gas for attenuating the pressure wave, wherein a part of a wall constituting the buffering chamber (13) has a gas transmitting property.

    6.
    发明专利
    未知

    公开(公告)号：DE69632281D1

    公开(公告)日：2004-06-03

    申请号：DE69632281

    申请日：1996-02-20

    Applicant: CANON KK

    Inventor： ARAI ATSUSHI ,  EBISAWA ISAO ,  YAEGASHI HISAO ,  KANDA HIDEHIKO

    IPC: B41J2/165 ,  B41J2/175 ,  B41J25/34

    Abstract: The present application is intended to provide an ink jet printing apparatus and method which can use a plurality of kinds of heads or ink tanks exchangeably, wherein the recovery operation can be effected without waste and efficiently in accordance with a head or an ink tank, or a cartridge having the head and the ink tank integrally formed which is mounted. Even in the state where a power switch of apparatus is off, the time is measured using a back-up power source, and the elapsed time from the previous recovery operation can be managed individually for the head, the ink tank or the cartridge to be mounted, whereby the proper recovery operation without waste can be realized. Also, the present application is intended to provide an ink jet printing apparatus which can effect the proper remain detection and the indication of remain state in accordance with the head, the tank or the cartridge to be mounted.

    8.
    发明专利
    未知

    公开(公告)号：DE69430605D1

    公开(公告)日：2002-06-20

    申请号：DE69430605

    申请日：1994-02-17

    Applicant: CANON KK

    Inventor： YOKOI KATSUYUKI ,  NAKATA KAZUHITO ,  ARAI ATSUSHI ,  YANAGI HARUYUKI

    IPC: G06K1/12 ,  H04N1/32 ,  H04N1/387

    Abstract: A code printing method and apparatus which prints an image and a code on the same recording medium. The apparatus stores a plurality of density patterns corresponding to each density, and codes corresponding to the density patterns. When code data is inputted and printing of the code is instructed, the apparatus determines the density of each pixel of image data, selects the density pattern representing the code data among the density patterns corresponding to the pixel density, and prints the density pattern instead of the image pixel. Thus, the image and code are printed without deterioration of the image quality.

    9.
    发明专利
    未知

    公开(公告)号：DE69033566D1

    公开(公告)日：2000-07-13

    申请号：DE69033566

    申请日：1990-01-26

    Applicant: CANON KK

    Inventor： HIRABAYASHI HIROMITSU ,  ARAI ATSUSHI ,  TAJIKA C O CANON KABUSHIKI KAI ,  KOITABASHI NORIBUMI

    IPC: B41J2/21 ,  G06K15/10 ,  H04N1/12 ,  H04N1/191 ,  H04N1/50

    Abstract: An ink jet recording device comprises a carriage (5) having a plural number of ink jet recording heads (1-4) each having a plural number of discharge ports (12-15) mounted thereon, a means for giving recording ink signals to the ink discharge energy generating elements corresponding to all or a part of the respective plural number of discharge ports of the plural number of discharge heads (1-4), and a control means, which increases the number of recording heads (1-4) to be used during recording of the recordable region formed by the total sum of all the discharge regions of the plural number of recording heads from initiation of recording onto a recording medium (8), reducing the number of recording heads to be used during recording of the recordable region in the recording completion region of the recording medium, and has one scanning width to be recorded by scanning by the recording head during recording as the feeding pitch of the recording medium.

    10.
    发明专利
    未知

    公开(公告)号：DE69327696T2

    公开(公告)日：2000-06-21

    申请号：DE69327696

    申请日：1993-10-08

    Applicant: CANON KK

    Inventor： OTSUKA NAOJI ,  ARAI ATSUSHI ,  YANO KENTARO ,  TAKAHASHI KIICHIRO ,  NISHIKORI HITOSHI ,  IWASAKI OSAMU

    IPC: B41J2/055 ,  B41J2/14 ,  B41J2/19

    Abstract: An ink jet print head includes ink ejection outlets (5,6,7,8) for ejecting ink, passages communicating with the ejection outlets; a common chamber (9) for supplying the ink to the passages; ejection energy generating elements (3) for producing energy for ejecting the ink; an ink supply passage for supplying the ink to the common chamber; a buffering chamber (13) disposed at a position through which a pressure wave resulting from driving of the ejection energy generating elements (3) propagate, the buffering chamber containing a gas for attenuating the pressure wave, wherein a part of a wall constituting the buffering chamber (13) has a gas transmitting property.

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