Patent ID: 6938996

Claim:
A combination of a recording device and an ink cartridge, comprising: a recording device including: an open portion with an opening that opens in a horizontal direction to outside; a floor surface that extends in the horizontal direction; a ceiling surface that extends in the horizontal direction, an ink cartridge mounting portion being defined by the open portion, the floor surface, and the ceiling surface; a hollow needle that supplies ink to a recording head, the hollow needle being positioned in confrontation with the open portion and extending in a needle axial direction; a cover selectively covering and uncovering the hollow needle with respect to the open portion; a lever that moves the cover to uncover the needle, the lever being positioned nearer the open portion than is the cover; a protruding wall positioned on the floor surface adjacent to the lever, the protruding wall extending in the needle axial direction; and a sensor portion including a light emitting portion and a light receiving portion in confrontation with each other, the lever and the sensor portion protruding from the floor surface into the ink cartridge mounting portion at two positions that sandwich therebetween an imaginary extension of the axial needle extending in the needle axial direction; and an ink cartridge detachably mounted in the ink cartridge mounting portion, the ink cartridge including: a lower surface adapted to abut against the floor surface and slide from the open portion to the hollow needle of the recording device; a front surface having an ink supply hole inserted with the hollow needle; a protruding wall indentation portion that accommodates the protruding wall; an operation portion provided at a position that is adjacent to the protruding wall indentation portion and that corresponds to the position of the lever and that is for operating the lever; a sensor indentation portion that accommodates the sensor portion; and a light blocking member that moves corresponding to amount of ink remaining in the ink cartridge, the light blocking member provided in correspondence with the sensor portion so as to protrude into the sensor indentation portion and interpose between the light emitting portion and the light receiving portion when the ink cartridge is mounted in the ink cartridge mounting portion, the sensor indentation portion and the protruding wall indentation portion being formed open at the front surface and the lower surface at a position that sandwiches both sides on the ink supply hole as viewed from the front surface side.