公开(公告)号：EP1961573A4

公开(公告)日：2012-01-04

申请号：EP06834070

申请日：2006-11-29

Applicant: CANON KK

Inventor： MURAKAMI SHUICHI ,  TAKEI YASUNORI

IPC: B41J2/16 ,  B41J2/135

CPC classification number: B41J2/1404 ,  B41J2/1433 ,  B41J2002/14387 ,  B41J2002/14475

公开(公告)号：EP0790129A3

公开(公告)日：1998-10-14

申请号：EP97300906

申请日：1997-02-12

Applicant: CANON KK

Inventor： MURAKAMI SHUICHI ,  KOITABASHI NORIBUMI ,  UETSUKI MASAYA ,  NAKAJIMA YOSHINORI

IPC: B41J2/21 ,  B41J2/165 ,  B41J2/04 ,  B41J2/05 ,  B41J2/14

CPC classification number: B41J2/2114

Abstract: A region to be covered by a cover plate (208) on an ejection opening forming surface (205) of an ink-jet head or an ink-jet head to which the cover plate (208) is installed are determined, on a basis of content of a rebounding mist generated upon ejection of an ink and a processing liquid in overlaying fashion. By this, in the ink-jet printing apparatus performing printing by ejecting the ink and the processing liquid for making the ink insoluble, deposition of the insoluble substance contained in the rebounding mist generated upon ejection of an ink and a processing liquid in overlaying fashion can be successfully prevented.

公开(公告)号：DE60330295D1

公开(公告)日：2010-01-14

申请号：DE60330295

申请日：2003-07-10

Applicant: CANON KK

Inventor： TOMIZAWA KEIJI ,  MURAKAMI SHUICHI ,  MATSUMOTO MITSUHIRO

IPC: B41J2/05 ,  B41J2/14 ,  B41J2/135

Abstract: To provide an ink jet record head having a nozzle shape capable of, when further rendering liquid droplets smaller, reducing flow resistance in a discharge direction and preventing reduction in discharge speed of ink droplets. An opening face on a bubbling chamber 11 side of a second discharge port portion 10 is shaped so that a length in a direction parallel with an arrangement direction of discharge ports 4 is longer than the length in the direction vertical thereto, and the opening face on the discharge port portion side is also a sectional shape congruent with the opening face on the bubbling chamber 11 side. In the drawing, a cross section cut in a direction approximately parallel with the surface on which heaters 1 are formed of the second discharge port portion 10 is an approximately rectangular shape.

公开(公告)号：DE60229334D1

公开(公告)日：2008-11-27

申请号：DE60229334

申请日：2002-08-29

Applicant: CANON KK

Inventor： MIZUTANI MICHINARI ,  MURAKAMI SHUICHI

IPC: B41J2/15 ,  B41J2/14

Abstract: A liquid ejection head according to the present invention includes a plurality of ejection openings (25) arranged in a first direction and a plurality of electro-thermal transducers (30) for ejecting liquid from the ejection openings (25), the liquid ejection head and a printing medium being subjected to the relative movement, wherein an arrangement pitch (d1) of the ejection openings (25e) forming an end group located in the respective opposite end section along the first direction is longer than an arrangement pitch (d0) of the ejection openings (25c) forming a central group located in the central section along the first direction. According to the present invention, it is possible to eliminate white streaks which may generate in a solid printing.

公开(公告)号：AT411177T

公开(公告)日：2008-10-15

申请号：AT02019378

申请日：2002-08-29

Applicant: CANON KK

Inventor： MIZUTANI MICHINARI ,  MURAKAMI SHUICHI

IPC: B41J2/15 ,  B41J2/14

Abstract: A liquid ejection head according to the present invention includes a plurality of ejection openings (25) arranged in a first direction and a plurality of electro-thermal transducers (30) for ejecting liquid from the ejection openings (25), the liquid ejection head and a printing medium being subjected to the relative movement, wherein an arrangement pitch (d1) of the ejection openings (25e) forming an end group located in the respective opposite end section along the first direction is longer than an arrangement pitch (d0) of the ejection openings (25c) forming a central group located in the central section along the first direction. According to the present invention, it is possible to eliminate white streaks which may generate in a solid printing.

公开(公告)号：DE60217016T2

公开(公告)日：2007-08-09

申请号：DE60217016

申请日：2002-06-20

Applicant: CANON KK

Inventor： MURAKAMI SHUICHI ,  MIZUTANI MICHINARI ,  INOUE TAKASHI

IPC: B41J2/15 ,  B41J2/18 ,  B41J2/01 ,  B41J2/05 ,  B41J2/14 ,  B41J2/185 ,  B41J2/205 ,  B41J2/21

Abstract: The present invention provides an ink-jet printing head, and an ink-jet printing apparatus and method which enable not only larger-diameter nozzles (21) but also smaller-diameter nozzles (22, 22A, 22B, 22C) to be sufficiently recovered. In an ink-jet printing head (10) according to the present invention, the number of smaller-diameternozzles (22, 22A, 22B, 22C) is larger than that of larger-diameter nozzles (21). Further, a plurality of ink channels include first ink channels (7a) in communication with the larger-diameter nozzles (21) and second ink channels (7b) in communication with the smaller-diameter nozzles (22, 22A, 22B, 22C). The first ink channels (7a) and the second ink channels (7b) are mixed and arranged along an ink supply port (3) so that a group of smaller-diameter nozzles composed of a plurality of the smaller-diameter nozzles (22, 22A, 22B, 22C) is arranged between the lager-diameter nozzles (21).

公开(公告)号：DE60217016D1

公开(公告)日：2007-02-08

申请号：DE60217016

申请日：2002-06-20

Applicant: CANON KK

Inventor： MURAKAMI SHUICHI ,  MIZUTANI MICHINARI ,  INOUE TAKASHI

IPC: B41J2/15 ,  B41J2/18 ,  B41J2/01 ,  B41J2/05 ,  B41J2/14 ,  B41J2/185 ,  B41J2/205 ,  B41J2/21

Abstract: The present invention provides an ink-jet printing head, and an ink-jet printing apparatus and method which enable not only larger-diameter nozzles (21) but also smaller-diameter nozzles (22, 22A, 22B, 22C) to be sufficiently recovered. In an ink-jet printing head (10) according to the present invention, the number of smaller-diameternozzles (22, 22A, 22B, 22C) is larger than that of larger-diameter nozzles (21). Further, a plurality of ink channels include first ink channels (7a) in communication with the larger-diameter nozzles (21) and second ink channels (7b) in communication with the smaller-diameter nozzles (22, 22A, 22B, 22C). The first ink channels (7a) and the second ink channels (7b) are mixed and arranged along an ink supply port (3) so that a group of smaller-diameter nozzles composed of a plurality of the smaller-diameter nozzles (22, 22A, 22B, 22C) is arranged between the lager-diameter nozzles (21).

公开(公告)号：AT349327T

公开(公告)日：2007-01-15

申请号：AT02013705

申请日：2002-06-20

Applicant: CANON KK

Inventor： MURAKAMI SHUICHI ,  MIZUTANI MICHINARI ,  INOUE TAKASHI

IPC: B41J2/18 ,  B41J2/01 ,  B41J2/05 ,  B41J2/14 ,  B41J2/15 ,  B41J2/185 ,  B41J2/205 ,  B41J2/21

Abstract: The present invention provides an ink-jet printing head, and an ink-jet printing apparatus and method which enable not only larger-diameter nozzles (21) but also smaller-diameter nozzles (22, 22A, 22B, 22C) to be sufficiently recovered. In an ink-jet printing head (10) according to the present invention, the number of smaller-diameternozzles (22, 22A, 22B, 22C) is larger than that of larger-diameter nozzles (21). Further, a plurality of ink channels include first ink channels (7a) in communication with the larger-diameter nozzles (21) and second ink channels (7b) in communication with the smaller-diameter nozzles (22, 22A, 22B, 22C). The first ink channels (7a) and the second ink channels (7b) are mixed and arranged along an ink supply port (3) so that a group of smaller-diameter nozzles composed of a plurality of the smaller-diameter nozzles (22, 22A, 22B, 22C) is arranged between the lager-diameter nozzles (21).

公开(公告)号：AT311295T

公开(公告)日：2005-12-15

申请号：AT01104719

申请日：1992-08-03

Applicant: CANON KK

Inventor： ISHINAGA HIROYUKI ,  OGAWA MASAHIKO ,  IKEDA MASAMI ,  SAITO ASAO ,  SAIKAWA HIDEO ,  YAMANAKA AKIHIRO ,  HAYASAKI KIMIYUKI ,  OZAKI TERUO ,  MURAKAMI SHUICHI ,  MATSUDA HIROTO

IPC: B41J2/05 ,  B41J2/14 ,  B41J2/16 ,  B41J2/35

Abstract: The invention relates to a recording head and apparatus as well as to a substrate usable for the recording head. The substrate comprises electrical contacts for external electrical connection in order to receive image signals used for driving recording elements. A logic circuit converts the image signals which are serially supplied to the electrical contacts into parallel signals to be applied to the recording elements via electrical leads. The electrical contacts, the recording elements, the logic circuit, and selectors for selectively driving the recording elements are built in the substrate. The selectors are disposed in a one-to-one relation with the recording elements, corresponding to the interval of the recording elements.

公开(公告)号：DE69727533T2

公开(公告)日：2005-01-05

申请号：DE69727533

申请日：1997-11-14

Applicant: CANON KK

Inventor： SATO TAMAKI ,  TAMURA YASUYUKI ,  KANEKO MINEO ,  TACHIHARA MASAYOSHI ,  WATANABE YASUTOMO ,  MURAKAMI SHUICHI ,  MIZUTANI MICHINARI ,  INOUE TAKASHI

IPC: B41J2/14 ,  B41J2/05

Abstract: There is disclosed an ink jet head comprising plural discharge energy generating elements for generating energy to be used for discharging ink droplets, ink discharge openings for discharging the ink droplets, a substrate bearing thereon an array of the plural discharge energy generating elements and an ink supply aperture consisting of a penetrating hole extending along the direction of array of the discharge energy generating elements, and an orifice plate provided with the ink discharge openings, in which the substrate and the orifice plate are mutually adjoined to define therebetween ink paths connecting the ink discharge openings and the ink supply aperture, wherein the orifice plate comprises plural projections in a position corresponding to the ink supply aperture.