公开(公告)号：DE69622354D1

公开(公告)日：2002-08-22

申请号：DE69622354

申请日：1996-12-04

Applicant: CANON KK

Inventor： FIJITA MIYUKI ,  NAGOSHI SHIGEYASU ,  INUI TOSHIHARU ,  AKIYAMA YUJI ,  UETSUKI MASAYA ,  KANDA HIDEHIKO ,  YAMADA AKITOSHI

IPC: B41J2/01 ,  B41J2/07 ,  B41J2/205 ,  B41J2/485 ,  G06K15/10 ,  H04N1/40

Abstract: This invention relates to an ink jet recording apparatus and a recording method for recording images of high density with the amount of ink placed per unit area on a recording medium being kept constant even if the resolvability when recording is changed. When the amount of ink of an ink droplet discharged from a recording head is constant (25 pl), the average number of recorded dots conforming to the resolvability is found on the basis thereof, and the number of recordable dots is found from this average number of dots. The difference between this number of actually recorded dots and the average number of recorded dots is adjusted by reducing the value of recording data in advance.

公开(公告)号：DE69519497D1

公开(公告)日：2001-01-04

申请号：DE69519497

申请日：1995-09-04

Applicant: CANON KK

Inventor： INUI TOSHIHARU ,  GOTOH FUMIHIRO ,  MORIYAMA JIRO ,  TAJIKA HIROSHI ,  KURABAYASHI YUTAKA ,  SUGIMOTO HITOSHI ,  TAKAHASHI KIICHIRO

IPC: B41J3/54 ,  B41J2/01 ,  B41J2/05 ,  B41J2/205 ,  B41J2/21 ,  B41M5/00

Abstract: A recording head for ejecting ink to effect recording on a recording material includes a first group of ejection outlets, arranged in a first direction, for ejecting record improving liquid for improving record property on the recording material; a second group of ejection outlets arranged in the first direction for ejecting ink having a first density; a third group of ejection outlets, arranged in the first direction, for ejecting ink having a second density which is lower than the first density; wherein the first, second and third groups are arranged in a second direction which is different from the first direction.

公开(公告)号：DE69328812T2

公开(公告)日：2000-11-09

申请号：DE69328812

申请日：1993-10-29

Applicant: CANON KK

Inventor： MORIYAMA JIRO ,  OTSUKA NAOJI ,  KUWABARA NOBUYUKI ,  EBISAWA ISAO ,  ARAI ATSUSHI ,  YAEGASHI HISAO ,  INUI TOSHIHARU ,  YANO KENTARO ,  TAKAHASHI KIICHIRO ,  IWASAKI OSAMU ,  KANEMATSU DAIGORO

IPC: B41J2/21 ,  H04N1/52 ,  H04N1/58

Abstract: Whether or not a color image is present adjacent to a black image is discriminated. Whether the black image is formed using a black ink or a plurality of color inks C, M, and Y is determined in accordance with the discrimination result. When the black image is formed using the plurality of color inks, it is recorded using a repetitive pattern of two of C, M, and Y so as to prevent blurring with the color image, and to improve fixing characteristics by decreasing the total ejection amount.

公开(公告)号：DE69423699T2

公开(公告)日：2000-08-03

申请号：DE69423699

申请日：1994-10-27

Applicant: CANON KK

Inventor： OHTSUKA NAOJI ,  KUWABARA NOBUYUKI ,  EBISAWA ISAO ,  ARAI ATSUSHI ,  YAEGASHI HISAO ,  INUI TOSHIHARU ,  YANO KENTARO ,  TAKAHASHI KIICHIRO ,  IWASAKI OSAMU ,  KANEMATSU DAIGORO

IPC: B41J2/01 ,  B41J2/505 ,  B41J2/52 ,  G06K15/10 ,  G06T5/30 ,  H04N1/409

Abstract: According to an image processing method and apparatus of the present invention, an outline portion is extracted from input image data, and a pixel whose dot size is to be changed is extracted. The input image data is printed without any change, and the pixel whose dot size is to be changed is overlap-printed while the dot size is increased. Therefore, smoothing can be sufficiently performed in both the main scanning direction and the sub-scanning direction without increasing the dot density and decreasing the recording speed.

公开(公告)号：DE69328812D1

公开(公告)日：2000-07-13

申请号：DE69328812

申请日：1993-10-29

Applicant: CANON KK

Inventor： MORIYAMA JIRO ,  OTSUKA NAOJI ,  KUWABARA NOBUYUKI ,  EBISAWA ISAO ,  ARAI ATSUSHI ,  YAEGASHI HISAO ,  INUI TOSHIHARU ,  YANO KENTARO ,  TAKAHASHI KIICHIRO ,  IWASAKI OSAMU ,  KANEMATSU DAIGORO

IPC: B41J2/21 ,  H04N1/52 ,  H04N1/58

Abstract: Whether or not a color image is present adjacent to a black image is discriminated. Whether the black image is formed using a black ink or a plurality of color inks C, M, and Y is determined in accordance with the discrimination result. When the black image is formed using the plurality of color inks, it is recorded using a repetitive pattern of two of C, M, and Y so as to prevent blurring with the color image, and to improve fixing characteristics by decreasing the total ejection amount.

公开(公告)号：DE69418674T2

公开(公告)日：1999-10-21

申请号：DE69418674

申请日：1994-10-28

Applicant: CANON KK

Inventor： TAKAHASHI KIICHIRO ,  OTSUKA NAOJI ,  MORIYAMA JIRO ,  KUWABARA NOBUYUKI ,  EBISAWA ISAO ,  ARAI ATSUSHI ,  YAEGASHI HISAO ,  INUI TOSHIHARU ,  YANO KENTARO ,  AKIYAMA YUJI ,  SUGIMOTO HITOSHI ,  IWASAKI OSAMU ,  KANEMATSU DAIGORO

IPC: B41J2/21 ,  B41J2/52 ,  G06K15/10 ,  H04N1/60

公开(公告)号：DE69323372T2

公开(公告)日：1999-06-17

申请号：DE69323372

申请日：1993-09-15

Applicant: CANON KK

Inventor： SUGA YUKO ,  MORIYAMA JIRO ,  KATAYAMA MASATO ,  INUI TOSHIHARU ,  KURABAYASHI YUTAKA ,  SHIROTA KOROMO ,  KASHIWAZAKI AKIO ,  TONOGAKI MASAHIKO ,  TAKAIDE AYA

IPC: C09D11/00

公开(公告)号：DE69214489T2

公开(公告)日：1997-03-20

申请号：DE69214489

申请日：1992-03-19

Applicant: CANON KK

Inventor： TAKENOUCHI MASANORI ,  HIRASAWA SHINICHI ,  MAEOKA KUNIHIKO ,  TAKAHASHI HIROTO ,  INUI TOSHIHARU ,  NAKAJIMA KAZUHIRO ,  KUBOTA HIDEMI

IPC: B41J2/14 ,  B41J2/05

Abstract: A recording head includes a liquid ejecting outlet; a liquid passage communicating with the ejection outlet; and a heat generating resistor (1) for supplying heat to the liquid in a heat acting portion in the liquid to create a bubble in the liquid passage to eject the liquid through the ejection outlet; wherein a cross-sectional area of the liquid passage increases from the heat acting zone (H,I) toward the ejection outlet (O1,P1).

公开(公告)号：ES2092588T3

公开(公告)日：1996-12-01

申请号：ES92104786

申请日：1992-03-19

Applicant: CANON KK

Inventor： TAKENOUCHI MASANORI ,  HIRASAWA SHINICHI ,  MAEOKA KUNIHIKO ,  TAKAHASHI HIROTO ,  INUI TOSHIHARU ,  NAKAJIMA KAZUHIRO

IPC: B41J2/14 ,  B41J2/05

Abstract: A recording head includes a liquid ejecting outlet; a liquid passage communicating with the ejection outlet; and a heat generating resistor (1) for supplying heat to the liquid in a heat acting portion in the liquid to create a bubble in the liquid passage to eject the liquid through the ejection outlet; wherein a cross-sectional area of the liquid passage increases from the heat acting zone (H,I) toward the ejection outlet (O1,P1).

公开(公告)号：CA2102005A1

公开(公告)日：1994-05-01

申请号：CA2102005

申请日：1993-10-29

Applicant: CANON KK

Inventor： MORIYAMA JIRO ,  OTSUKA NAOJI ,  KUWABARA NOBUYUKI ,  EBISAWA ISAO ,  ARAI ATSUSHI ,  YAEGASHI HISAO ,  INUI TOSHIHARU ,  YANO KENTARO ,  TAKAHASHI KIICHIRO ,  IWASAKI OSAMU ,  KANEMATSU DAIGORO

IPC: B41J2/21 ,  H04N1/52 ,  H04N1/58

Abstract: Whether or not a color image is present adjacent to a black image is discriminated. Whether the black image is formed using a black ink or a plurality of color inks C, M, and Y is determined in accordance with the discrimination result. When the black image is formed using the plurality of color inks, it is recorded using a repetitive pattern of two of C, M, and Y so as to prevent blurring with the color image, and to improve fixing characteristics by decreasing the total ejection amount.