Cartridge mountable to a printing apparatus that ejects liquid onto a print medium for printing

A mountable to a printing apparatus capable of performing printing by ejecting a liquid onto a print medium, the cartridge comprising:

• a first member;
• a second member joined to the first member;
• a first accommodation chamber capable of accommodating the liquid, the first accommodation chamber being formed in the first member;
• a second accommodation chamber capable of accommodating the liquid;
• a first channel connecting the first accommodation chamber and a printing element board including an element configured to apply an energy for ejecting the liquid to the liquid, the first channel being formed in the first member and the second member and the printing element board being disposed at a printing-element placement portion formed at the second member;
• and
• a second channel connecting the second accommodation chamber and the printing element board to each other,
• wherein, in a state where the cartridge is mounted to the printing apparatus, the first channel includes:
• a first horizontal portion extending along a horizontal direction, the first horizontal portion being formed at portions of the first member and the second member at which the first member and the second member are joined to each other;
• a first connection portion connected to the printing element board and extending along a vertical direction;
• and
• a first reservoir portion capable of storing a bubble, and,
• as viewed along an extending direction in which the first horizontal portion extends, a width of the first reservoir portion is larger than a width of the first connection portion,
• wherein, in the state where the cartridge is mounted to the printing apparatus,
• the second channel includes:
• a second horizontal portion extending along the extending direction;
• a second connection portion connected to the printing element board and extending along
• the vertical direction;
• and
• a third reservoir portion capable of storing a bubble, and,
• as viewed along the extending direction, a width of the third reservoir portion is larger than a width of the second connection portion.

A printing apparatus capable of performing printing by ejecting a liquid onto a print medium, the printing apparatus comprising:

• a cartridge;
• and
• a mount unit configured such that the cartridge is mountable to the mount,
• wherein the cartridge includes:
• a first accommodation chamber capable of accommodating the liquid;
• and
• a first channel connecting the first accommodation chamber and a printing element board including an element configured to apply an energy for ejecting the liquid to the liquid,
• wherein, in a state where the cartridge is mounted to the printing apparatus, the first channel includes:
• a first horizontal portion extending along a horizontal direction;
• a first connection portion connected to the printing element board and extending along a vertical direction;
• and
• a first reservoir portion capable of storing a bubble, wherein the first reservoir portion has a tapered portion with an opening portion at an upper end thereof in the vertical direction and an opening portion at a lower end thereof in the state where the cartridge is mounted to the printing apparatus, the opening portion at the upper end being larger than the opening portion at the lower end,
• and,
• as viewed along an extending direction in which the first horizontal portion extends, a width of the first reservoir portion is larger than a width of the first connection portion,
• wherein the first channel has a second reservoir portion extending along the vertical direction in the state where the cartridge is mounted to the printing apparatus, an area of an opening portion formed at an upper end of the second reservoir portion in the vertical direction is larger than an area of an opening formed at an upper end of the first reservoir portion in the vertical direction, as viewed along the extending direction, a length of the second reservoir portion in the vertical direction is smaller than a length of the first reservoir portion in the vertical direction, the first reservoir portion is disposed between the first connection portion and the first horizontal portion, and the second reservoir portion is disposed between the first horizontal portion and the first accommodation chamber, and
• wherein the second reservoir portion has a tapered portion with an opening portion at an upper end thereof in the vertical direction and an opening portion at a lower end thereof in the state where the cartridge is mounted to the printing apparatus, the opening portion at the upper end being larger than the opening portion at the lower end.

A cartridge mountable to a printing apparatus capable of performing printing by ejecting a liquid onto a print medium, the cartridge comprising:

• a first accommodation chamber capable of accommodating the liquid;
• and
• a first channel connecting the first accommodation chamber and a printing element board including an element configured to apply an energy for ejecting the liquid to the liquid,
• wherein, in a state where the cartridge is mounted to the printing apparatus, the first channel includes:
• a first horizontal portion extending along a horizontal direction;
• a first connection portion connected to the printing element board and extending along a vertical direction;
• and
• a first reservoir portion capable of storing a bubble, wherein the first reservoir portion has a tapered portion with an opening portion at an upper end thereof in the vertical direction and an opening portion at a lower end thereof in the state where the cartridge is mounted to the printing apparatus, the opening portion at the upper end being larger than the opening portion at the lower end,
• and, as viewed along an extending direction in which the first horizontal portion extends, a width of the first reservoir portion is larger than a width of the first connection portion,
• wherein the first channel has a second reservoir portion extending along the vertical direction in the state where the cartridge is mounted to the printing apparatus, an area of an opening portion formed at an upper end of the second reservoir portion in the vertical direction is larger than an area of an opening formed at an upper end of the first reservoir portion in the vertical direction, as viewed along the extending direction, a length of the second reservoir portion in the vertical direction is smaller than a length of the first reservoir portion in the vertical direction, the first reservoir portion is disposed between the first connection portion and the first horizontal portion, and the second reservoir portion is disposed between the first horizontal portion and the first accommodation chamber;
• and
• a first partition partitioning an inside of the second reservoir portion into a plurality of spaces connected to each other.