公开(公告)号：DE69434305T2

公开(公告)日：2006-04-13

申请号：DE69434305

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：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：AT173198T

公开(公告)日：1998-11-15

申请号：AT95101835

申请日：1991-08-16

Applicant: CANON KK

Inventor： EBISAWA ISAO

IPC: B41J2/175 ,  B41J2/165 ,  B41J2/19

Abstract: A recovery method for an ink jet recording apparatus comprising recording means for recording by discharging the ink with bubbles formed by the thermal energy applied to a heat acting area in an ink holding portion, and energy supply means for forming said thermal energy on said recording means, including a compulsory recovery mode in which more than 10 predischarges are accomplished by supplying the energy exceeding 1.48 times the minimum energy Eo necessary for producing said bubbles.

公开(公告)号：DE69115162T2

公开(公告)日：1996-06-13

申请号：DE69115162

申请日：1991-08-16

Applicant: CANON KK

Inventor： EBISAWA ISAO

IPC: B41J2/175 ,  B41J2/165 ,  B41J2/19

Abstract: A recovery method for an ink jet recording apparatus comprising recording means for recording by discharging the ink with bubbles formed by the thermal energy applied to a heat acting area in an ink holding portion, and energy supply means for forming said thermal energy on said recording means, including a compulsory recovery mode in which more than 10 predischarges are accomplished by supplying the energy exceeding 1.48 times the minimum energy Eo necessary for producing said bubbles.

公开(公告)号：DE69020019D1

公开(公告)日：1995-07-20

申请号：DE69020019

申请日：1990-03-23

Applicant: CANON KK

Inventor： EBISAWA ISAO ,  NOGUCHI HIROMICHI

IPC: B41J2/16 ,  C07D303/24 ,  C08G59/17 ,  C08G59/30 ,  C09D11/00 ,  C09D11/02 ,  C07D303/27 ,  B41J3/00 ,  C07C69/653 ,  C07C69/76

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.

公开(公告)号：FR2589396A1

公开(公告)日：1987-05-07

申请号：FR8518955

申请日：1985-12-20

Applicant: CANON KK

Inventor： NAGATOMO AKIRA ,  HATTORI YOSHIFUMI ,  EBISAWA ISAO ,  ABE TSUTOMU ,  OHBA TAKASHI ,  IIDA HIROSHI ,  WATANABE KENJIRO

IPC: B41J2/05 ,  B41J2/07 ,  B41J2/165 ,  B41J2/17 ,  B41J2/365 ,  B41J3/04 ,  B41J29/38

Abstract: The invention relates to a recording appliance by liquid discharge method. It comprises a recording head unit HU comprising an emission energy generation device intended to heat a recording liquid, such as an ink, so as to form droplets of flying liquid sprayed towards a recording support P in response to an electrical signal transmitted by a flexible cable FC. When the appliance is supplied with power or when printing starts up again following a long shutdown period, the emission of the droplets used for printing is preceded by preheating and emission of prior droplets so that the quality of printing is good straight away. Field of application: ink jet printers.