LIQUID SUPPLY UNIT

摘要

A technique of enhancing attachment of a liquid supply unit to a liquid ejection device is provided. A first cartridge 100a and a second cartridge 100b are attached to a carriage 27 of a printing device 27 via a holder structure 200. The holder structure 200 has a lever member 230 rotated and moved to engage with a main engagement part 120 of each of the first and the second cartridges 100a and 100b. Each of the first and the second cartridges 100a and 100b has a first side wall portion 125 and a second side wall portion 126 configured to press the lever member 230 and rotate and move the lever member 230 forward in the course of attachment of the first or the second cartridge 100a or 100b to the holder structure 200. A rotation axis RX of the lever member 230 is located at a position closer to an ink supply port 110 or 110a than the first side wall portion 125 and the second side wall portion 126 in the course of attachment of the first or the second cartridge 100a or 100b.

主权项

1. A liquid supply unit attachable to a liquid ejection device having a liquid introduction conduit and a rotating mechanism including a first pressed part and a second pressed part, the liquid supply unit comprising:
a liquid supply port configured to supply a liquid into the liquid introduction conduit; a first pressure element configured to press the first pressed part; and a second pressure element configured to press the second pressed part, wherein in the course of attachment of the liquid supply unit to the liquid ejection device, the first pressure element and the second pressure element press the rotating mechanism so as to rotate the first pressed part and the second pressed part in a direction away from the liquid supply unit in such a state that a distance between the liquid supply port and the first pressure element and a distance between the liquid supply port and the second pressure element in a connecting direction of moving the liquid supply port toward the liquid introduction conduit are longer than a distance in the connecting direction between the liquid supply port and a supporting point of rotation of the rotating mechanism.