中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

45 records (took 0.021 seconds)

    Ink jet printing apparatus and method with suppressed bleeding of inks
    24.
    发明专利
    Ink jet printing apparatus and method with suppressed bleeding of inks 未知

    公开(公告)号：AU759094B2

    公开(公告)日：2003-04-03

    申请号：AU1542602

    申请日：2002-02-05

    Applicant: CANON KK

    Inventor： NISHIKORI HITOSHI ,  OTSUKA NAOJI ,  SUGIMOTO HITOSHI ,  TAKAHASHI KIICHIRO ,  IWASAKI OSAMU ,  TESHIGAWARA MINORU ,  YAZAWA TAKESHI ,  CHIKUMA TOSHIYUKI

    IPC: B41J2/01 ,  B41J2/07 ,  B41J2/21 ,  B41J19/14 ,  B41J2/145

    Abstract: An ink jet printing apparatus comprising print means having a polarity of ejection outlet arrays each having a plurality of ejection outlets, arranged in a predetermined direction, for ejecting ink, scanning means for scanningly moving the print means relative to the print medium in a main scan direction which is different from the predetermined direction during a printing operation, and means for feeding the print medium relative to the print means in a direction which is different from the main scan direction, wherein an image is formed on the print medium while repeating scanning operation of the scanning means and feeding operation by the feeding means, includes information obtain means for obtaining image information corresponding to at least one of the ejection outlet arrays with respect to a predetermined area of image data to be printed; and selecting means for selecting such a portion in the at least one of ejection outlet arrays as is to effect printing for the image data in the predetermined area, on the basis of the information obtained by the information obtaining means upon image formations.

    26.
    发明专利
    未知

    公开(公告)号：DE60224601T2

    公开(公告)日：2009-01-22

    申请号：DE60224601

    申请日：2002-01-30

    Applicant: CANON KK

    Inventor： YAZAWA TAKESHI ,  OTSUKA NAOJI ,  SUGIMOTO HITOSHI ,  TAKAHASHI KIICHIRO ,  NISHIKORI HITOSHI ,  IWASAKI OSAMU ,  TESHIGAWARA MINORU ,  CHIKUMA TOSHIYUKI ,  SEKI SATOSHI

    IPC: B41J2/14 ,  B41J2/145 ,  B41J2/165

    Abstract: A liquid ejection head (13) according to the present invention comprises a single liquid supplying port (18) to which a liquid is supplied, a plurality of liquid supplying passages (17a and 17b) having one end in communication with the liquid supplying port (18), a plurality of common liquid chambers (16a and 16b) that are in communication with the other ends of the liquid supplying passages (17a and 17b), respectively, and a plurality of ejection port groups which are in communication with the common liquid chambers (16a and 16b) via liquid channels and from which liquid droplets are ejected. A cross sectional area or length of the liquid supplying passage (17a) in communication with the ejection port group having a larger sum of opening areas of the ejection ports is set smaller or longer respectively than that of the liquid supplying passage (17b) that is in communication with the ejection port group having a smaller sum of opening areas of the ejection ports.

    27.
    发明专利
    未知

    公开(公告)号：DE60321436D1

    公开(公告)日：2008-07-17

    申请号：DE60321436

    申请日：2003-10-30

    Applicant: CANON KK

    Inventor： TESHIGAWARA MINORU ,  EDAMURA TETSUYA ,  OTSUKA NAOJI ,  TAKAHASHI KIICHIRO ,  IWASAKI OSAMU

    IPC: B41J2/01 ,  B41J2/21 ,  B41J2/205

    Abstract: The recorder performs recording with large and small dot-matrix patterns assigned to quantized data on independent planes, such that large and small dots in a pattern do not overlap in one pixel, when the dots are simultaneously provided to one pixel. An independent claim is also included for control method of ink-jet printer.

    28.
    发明专利
    未知

    公开(公告)号：DE60226918D1

    公开(公告)日：2008-07-17

    申请号：DE60226918

    申请日：2002-02-06

    Applicant: CANON KK

    Inventor： NISHIKORI HITOSHI ,  OTSUKA NAOJI ,  SUGIMOTO HITOSHI ,  TAKAHASHI KIICHIRO ,  IWASAKI OSAMU ,  TESHIGAWARA MINORU ,  YAZAWA TAKESHI ,  CHIKUMA TOSHIYUKI

    IPC: B41J2/01 ,  B41J2/21 ,  B41J11/42 ,  B41J19/78 ,  G06K15/10

    Abstract: An ink-jet printing apparatus and an ink-jet printing method allow the printing of an image with a high quality without causing the change in ink color coming out on the printing medium with keeping the printing conditions constantly regardless of changing the number of nozzles to be printed and the amount of transferring the printing medium, for example, by restricting the number of nozzles to be used in the printing, which belong to a nozzle row (Bk) located on an upstream side in the sub-scan direction (Y) before changing the amount of transferring the printing medium (P); and restricting the number of nozzles to be used in the printing, which belong to the nozzle rows (Y1, Y2, M1, M2, C1, C2) located on a downstream side in the sub-scan direction (Y), after changing the amount of transferring the printing medium (Y).

    29.
    发明专利
    未知

    公开(公告)号：DE602004008535T2

    公开(公告)日：2008-05-29

    申请号：DE602004008535

    申请日：2004-06-10

    Applicant: CANON KK

    Inventor： IWASAKI OSAMU ,  TAKAHASHI KIICHIRO ,  OTSUKA NAOJI ,  TESHIGAWARA MINORU ,  EDAMURA TETSUYA ,  NAKAGAWA YOSHINORI ,  SEKI SATOSHI

    IPC: B41J19/14 ,  B41J2/21

    Abstract: In an ink jet printing apparatus using many types of inks to execute bidirectional printing, when symmetrically arranged ejection opening rows c1, m1, y1, y2, m2, and c2 for a cyan, magenta, and yellow inks are used in the print head, one-pass bidirectional printing is executed. On the other hand, if ejection opening rows k1 and k2 for a black ink are used in addition to the above ejection opening rows, multi-pass printing is executed so that there are a number of dots formed with one application order for the black and other color inks and the same number of dots formed with another application order for the black and other color inks. This reduces the non-uniformity of the colors attributed to the difference in application order.

    30.
    发明专利
    未知

    公开(公告)号：AT383952T

    公开(公告)日：2008-02-15

    申请号：AT02002255

    申请日：2002-01-30

    Applicant: CANON KK

    Inventor： YAZAWA TAKESHI ,  OTSUKA NAOJI ,  SUGIMOTO HITOSHI ,  TAKAHASHI KIICHIRO ,  NISHIKORI HITOSHI ,  IWASAKI OSAMU ,  TESHIGAWARA MINORU ,  CHIKUMA TOSHIYUKI ,  SEKI SATOSHI

    IPC: B41J2/14 ,  B41J2/145 ,  B41J2/165

    Abstract: A liquid ejection head (13) according to the present invention comprises a single liquid supplying port (18) to which a liquid is supplied, a plurality of liquid supplying passages (17a and 17b) having one end in communication with the liquid supplying port (18), a plurality of common liquid chambers (16a and 16b) that are in communication with the other ends of the liquid supplying passages (17a and 17b), respectively, and a plurality of ejection port groups which are in communication with the common liquid chambers (16a and 16b) via liquid channels and from which liquid droplets are ejected. A cross sectional area or length of the liquid supplying passage (17a) in communication with the ejection port group having a larger sum of opening areas of the ejection ports is set smaller or longer respectively than that of the liquid supplying passage (17b) that is in communication with the ejection port group having a smaller sum of opening areas of the ejection ports.

Patent Agency Ranking