公开(公告)号：EP3628497A1

公开(公告)日：2020-04-01

申请号：EP19199119.9

申请日：2019-09-24

申请人： CANON KABUSHIKI KAISHA

发明人： NAGAOKA, Kyosuke ,  KOTAKI, Yasuo ,  OHASHI, Tetsuya ,  INOUE, Ryoji ,  MIYASHITA, Takeho ,  MURAKAMI, Hironori ,  TANNO, Takayuki ,  FUKUSHIMA, Takashi

IPC分类号： B41J2/175

摘要： An ink cartridge (20) includes a housing (70) that has an air communication port (70c) and stores a liquid inside and a sealing member (71) attached to the housing (70) in such a way as to cover the air communication port (70c). The sealing member (71) includes an adherent region (71a) attached to the housing (70) and a non-adherent region (71b) not attached to the housing (70). The non-adherent region (71b) extends to an end portion of the sealing member (71) and forms a communication passage which establishes communication between the air communication port (70c) and air.

公开(公告)号：EP3939795A1

公开(公告)日：2022-01-19

申请号：EP21185113.4

申请日：2021-07-12

申请人： CANON KABUSHIKI KAISHA

发明人： NAGAI, Noriyasu ,  INOUE, Ryoji ,  NAGAOKA, Kyosuke ,  TANNO, Takayuki ,  UDAGAWA, Kenta

IPC分类号： B41J2/175

摘要： A liquid storage container (2) includes: a discharge port member (22) including a discharge port (22a) through which liquid stored in a storage portion (21) is discharged; a cover portion (23) configured to be attachable to the discharge port member (22) and to be capable of opening and closing the discharge port (22a); and a sealing portion (23b) formed of a contact portion between the cover portion (23) and the discharge port member (22). The cover portion (23) includes a groove structure (23e) between an outer periphery of the cover portion (23) and the sealing portion (23b).

公开(公告)号：EP3939794A1

公开(公告)日：2022-01-19

申请号：EP21185107.6

申请日：2021-07-12

申请人： CANON KABUSHIKI KAISHA

发明人： NAGAI, Noriyasu ,  INOUE, Ryoji ,  NAGAOKA, Kyosuke ,  TANNO, Takayuki ,  UDAGAWA, Kenta ,  MATSUMURA, Hideaki ,  MARUYAMA, Taiji

IPC分类号： B41J2/175

摘要： A liquid storage container (2) includes: a discharge port member (22) including a discharge port (22a) through which liquid stored in a storage portion (21) is discharged; a cover portion (23) configured to be attachable to and detachable from the discharge port member (22) and to be capable of opening and closing the discharge port (22a); a liquid stop valve (25) provided inside the discharge port member (22); and a protrusion (23f) provided inside the cover portion (23) and configured to open the liquid stop valve (25) in closing the cover portion (23). In the liquid storage container (2), the storage portion (21) is sealable by at least one of a first sealing portion formed of a contact portion between the cover portion (23) and the discharge port member (22) and a second sealing portion formed of the liquid stop valve (25), and the first sealing portion and the second sealing portion are configured to be simultaneously unsealed.