Inkjet recording apparatus and ink cartridge

An inkjet recording apparatus having a recording head that receives supply of ink from an ink cartridge installed in a cartridge accommodation region, the ink cartridge having a first member constituting a one-push type fixing member formed on the ink cartridge, the inkjet recording apparatus comprising:

• a second member that constitutes another one-push type fixing member cooperating with the first member, and that is formed in a position facing a plane that is substantially parallel to an insertion direction in which the ink cartridge is inserted into the cartridge accommodation region, whereby the ink cartridge is held by the first and members in a predetermined position in a state in which the ink cartridge is resiliently urged by a resiliently urging member in a direction opposite to the insertion direction,
• wherein the first member constituting the one-push type fixing member includes a combination of a guide path for guiding the protrusion in one direction, and a holding portion engaging the protrusion, and
• wherein the second member includes a protrusion whose range of motion is restricted.

An ink cartridge having an ink storing portion storing ink therein and an ink supply port communicating with the ink storing portion, the ink cartridge being adapted to removably mounted on a cartridge mounting portion of a recording apparatus to supply the ink in the ink storing portion via the ink supply port to a recording head provided on the recording apparatus, the ink cartridge comprising:

• a first member that constitutes a one-push type fixing member, that is formed on a plane substantially parallel to an insertion direction in which the ink cartridge is inserted into the cartridge mounting portion, and that cooperates with a second member constituting another one-push type fixing member of the recording apparatus,
• wherein the second member includes a protrusion whose range of motion is restricted, and the first member includes a combination of a guide path for guiding the protrusion in one direction, and a holding portion engaging the protrusion.

An ink cartridge having an ink storing portion storing ink therein and an ink supply port communicating with the ink storing portion, the ink cartridge being adapted to removably mounted on a cartridge mounting portion of a recording apparatus to supply the ink in the ink storing portion via the ink supply port to a recording head provided on the recording apparatus, the ink cartridge comprising:

• a first member that constitutes a one-push type fixing member, that is formed on a plane substantially parallel to an insertion direction in which the ink cartridge is inserted into the cartridge mounting portion, and that cooperates with a second member constituting another one-push type fixing member of the recording apparatus,
• wherein the second member includes a combination of a guide path for guiding a protrusion in one direction, and a holding portion engaging the protrusion, and the first member includes the protrusion whose range of motion is restricted and which is engageable with the second member.