公开(公告)号：US20240278569A1

公开(公告)日：2024-08-22

申请号：US18435063

申请日：2024-02-07

Applicant: CANON KABUSHIKI KAISHA

Inventor： YUHEI OIKAWA ,  JUN YASUTANI

IPC: B41J2/145 ,  B41J25/304 ,  B41J29/12

CPC classification number: B41J2/145 ,  B41J25/304 ,  B41J29/12

Abstract: A printing apparatus includes: a conveyance unit configured to convey a printing medium in a conveyance direction; a first printing head configured to eject a first liquid onto the printing medium conveyed by the conveyance unit in a state where a distance between a first ejection surface where ejection ports are formed and the printing medium corresponds to a first distance; and a plurality of second printing heads each configured to eject a second liquid, which reacts upon coming into contact with the first liquid, onto the printing medium conveyed by the conveyance unit in a state where a distance between a second ejection surface where ejection ports are formed and the printing medium corresponds to a second distance smaller than the first distance, wherein the first printing head is provided upstream of the plurality of second printing heads in the conveyance direction.

公开(公告)号：US20240217233A1

公开(公告)日：2024-07-04

申请号：US18397115

申请日：2023-12-27

Applicant: CANON KABUSHIKI KAISHA

Inventor： TATSUROU MORI ,  SHUZO IWANAGA ,  HIROMASA AMMA ,  SHINGO OKUSHIMA ,  SATOSHI KIMURA ,  KOICHI ISHIDA ,  TOMOHIRO TAKAHASHI ,  HIROAKI MIHARA ,  YUHEI OIKAWA ,  TAKATOSHI NAKANO ,  YOSHIHIRO HAMADA ,  FUMI TANAKA

IPC: B41J2/14 ,  B41J2/155 ,  B41J2/16 ,  B41J2/175 ,  B41J2/18

CPC classification number: B41J2/14024 ,  B41J2/14032 ,  B41J2/155 ,  B41J2/1601 ,  B41J2/1623 ,  B41J2/17596 ,  B41J2/18 ,  B41J2002/14411

Abstract: A liquid ejection head according to the present disclosure includes: a printing element substrate including an ejection surface provided with a first ejection orifice array in which an ejection orifice configured to be capable of ejecting a liquid is arranged in plurality in an array direction and a second ejection orifice array arranged in a direction intersecting with the array direction and the first ejection orifice array; and a protective member provided with a first opening corresponding to the first ejection orifice array and a second opening corresponding to the second ejection orifice array, wherein the protective member is arranged adjacent to the ejection surface of the printing element substrate via an adhesive arranged between the first ejection orifice array and the second ejection orifice array.

公开(公告)号：US20240217236A1

公开(公告)日：2024-07-04

申请号：US18396999

申请日：2023-12-27

Applicant: CANON KABUSHIKI KAISHA

Inventor： YASUHIKO OSAKI ,  SHUZO IWANAGA ,  TATSUROU MORI ,  HIROMASA AMMA ,  SHINGO OKUSHIMA ,  SATOSHI KIMURA ,  YUHEI OIKAWA ,  TAKATOSHI NAKANO ,  KOICHI ISHIDA

IPC: B41J2/14 ,  B41J2/155

CPC classification number: B41J2/1433 ,  B41J2/14024 ,  B41J2/155 ,  B41J2002/14475

Abstract: There is provided a liquid ejection head including: a printing element board having an ejection surface in which an ejection orifice array is formed to eject liquid; and a protective member having an opening corresponding to the ejection orifice array, wherein the shape of the opening is an elongate shape having a longitudinal direction and a lateral direction in the case of viewing from the ejection surface, the opening has a first side surface parallel to the longitudinal direction and a second side surface parallel to the transverse direction, and the protective member s fixed to the ejection surface such that the first side surface has a first inclination angle with the ejection surface.