公开(公告)号：AT193680T

公开(公告)日：2000-06-15

申请号：AT93308657

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：AT191886T

公开(公告)日：2000-05-15

申请号：AT94108032

申请日：1994-05-25

Applicant: CANON KK

Inventor： HASHIMOTO KENICHIRO ,  MORIYAMA JIRO ,  SUGIYAMA HIROSHI ,  EBISAWA ISAO ,  YAEGASHI HISAO ,  INUI TOSHIHARU

IPC: B41J2/175 ,  B41J25/34 ,  B41J29/38

Abstract: An ink jet recording apparatus comprises a carriage (2) movable in a given direction with a recording head (1) which is detachably mountable on it and provided with discharge ports for discharging liquid. The apparatus is arranged to include a sensor (21) for detecting the presence or absence of the carriage, the recording head, and at least one of the ink containers. This sensor is provided for the main body of the apparatus and positioned within the movable range of the carriage. With this arrangement, it is possible to simplify the structure required for detecting whether or not these vital elements for recording are installed without any auxiliary power-supply or memory means.

公开(公告)号：DE69423699D1

公开(公告)日：2000-05-04

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：AT191285T

公开(公告)日：2000-04-15

申请号：AT94307917

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：DE69418674D1

公开(公告)日：1999-07-01

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：DE69323372D1

公开(公告)日：1999-03-18

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：DE69323247D1

公开(公告)日：1999-03-11

申请号：DE69323247

申请日：1993-07-23

Applicant: CANON KK

Inventor： MATSUBARA MIYUKI ,  FUJITA TAKAYUKI ,  HIRABAYASHI HIROMITSU ,  INOUE TETSUROU ,  AOKI MAKOTO ,  KIKUTA MASAYA ,  MORIYAMA JIRO ,  NAGOSHI SHIGEYASU ,  YAMAMOTO MAYUMI ,  KOITABASHI NORIBUMI ,  TAKIZAWA YOSHIHISA ,  INUI TOSHIHARU ,  YOKOI HIDETO ,  SUGIMOTO HITOSHI ,  GOTOH FUMIHIRO ,  UETUKI MASAYA

IPC: B41J2/21 ,  B41M1/18 ,  C09D11/00 ,  B41M5/34 ,  C09D11/02

Abstract: There are provided a color image forming method with liquids, capable of ensuring sharpness and high density in basically all the color images, and a recording apparatus therefor. This invention employs a black ink of relatively superior diffusibility and color inks of relatively superior penetrability, different in color from the black ink, and is featured by forming the boundary area of a black image area with the color inks instead of the black ink.

公开(公告)号：DE69126996D1

公开(公告)日：1997-09-04

申请号：DE69126996

申请日：1991-04-26

Applicant: CANON KK

Inventor： NAKAJIMA KAZUHIRO ,  TAKENOUCHI MASANORI ,  INUI TOSHIHARU ,  TAKIZAWA YOSHIHISA ,  MIYAGAWA MASASHI ,  YAEGASHI HISAO ,  SHIROTA KATSUHIRO ,  OHKUMA NORIO ,  ASAI AKIRA

IPC: B41J2/14 ,  B41J2/05

Abstract: A liquid jet recording method includes applying thermal energy to liquid in a liquid passage to produce film boiling of the liquid to produce a bubble; permitting the bubble to communicate with ambience; wherein the liquid passage is not blocked in the communicating step.

公开(公告)号：CA2155505A1

公开(公告)日：1996-02-11

申请号：CA2155505

申请日：1995-08-04

Applicant: CANON KK

Inventor： MORIYAMA JIRO ,  ONISHI TOSHIYUKI ,  TAJIKA HIROSHI ,  INUI TOSHIHARU ,  SUGIMOTO HITOSHI ,  TAKAHASHI KIICHIRO ,  KATO MASAO ,  KATO MINAKO

IPC: B41J2/21 ,  B41J33/04

Abstract: An ink jet recording apparatus comprising an ink ejection head for effecting image recording on a recording material by ejecting ink, a processing liquid ejection head for ejecting onto the recording material processing liquid effective to insolubilize the said ink, and a processing liquid ejection head for ejecting onto the recording material processing liquid effective to insolubilize the said ink, and control means for controlling ejection of the processing liquid from said processing liquid ejection head depending on a kind of the recording material in use.

公开(公告)号：DE3789368T2

公开(公告)日：1994-07-07

申请号：DE3789368

申请日：1987-12-02

Applicant: CANON KK

Inventor： INUI TOSHIHARU ,  OHKUMA NORIO ,  TAKENOUCHI MASANORI ,  MIYAGAWA MASASHI

IPC: G03F7/20 ,  B41M5/26 ,  G03C1/00 ,  G03C5/08 ,  G03F7/00 ,  G03F7/004 ,  G03F7/26 ,  G03F7/34