Liquid ejection head and liquid ejection apparatus comprising the same

A liquid ejection apparatus which includes a liquid ejection head comprising:

• 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 opening has a longitudinal direction and a transverse direction when viewed 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 is fixed to the ejection surface such that the first side surface has an inclination angle with the ejection surface,
• wherein the liquid ejection head is attachable to and detachable from the liquid ejection apparatus,
• a periphery of the printing element board is filled with a resin member,
• the longitudinal direction of the opening of the protective member is substantially equal to a scanning direction of a maintenance unit of the liquid ejection apparatus for the liquid ejection head, and
• the maintenance unit contacts the resin member filled into the periphery of the printing element board.

A liquid ejection apparatus comprising:

• 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;
• and
• a maintenance unit configured to scan the ejection surface,
• wherein the opening has a longitudinal direction and a transverse direction when viewed from the ejection surface,
• the longitudinal direction of the opening of the protective member is substantially equal to a scanning direction of the maintenance unit for the liquid ejection head,
• a periphery of the printing element board is filled with a resin member,
• the liquid ejection head is attachable to and detachable from the liquid ejection apparatus,
• the longitudinal direction of the opening of the protective member is substantially equal to the scanning direction of a maintenance unit, and
• the maintenance unit contacts the resin member filled into the periphery of the printing element board.