CARTRIDGE

摘要

A cartridge is equipped with an ink chamber provided on the interior of a case, and a supply port for supplying ink housed in the ink chamber to a printer. A porous member for leading the ink is provided in the supply port. A through hole for having the interior of the case and the outside communicate is provided on the case. A ventilation path that connects a space S on the supply port interior and the through hole is provided on the case interior. The meniscus pressure resistance of the porous member is greater than the absolute value of the difference between the pressure applied to the inside of the porous member when ink is led via the porous member, and the pressure applied to inside the ventilation path when ink is led via the porous member.

主权项

1. A cartridge comprising:
a printing material chamber provided in an interior of a case a supply port that supplies printing material housed in the printing material chamber to a printing device a porous member that leads the printing material, the porous member provided on the supply port a through hole that allows the interior of the case to be in communication with the outside, the through hole provided on the case and a ventilation path that connects a space in an interior of the supply port with the through hole, the ventilation path provided on the interior of the case, wherein a meniscus pressure resistance of the porous member is greater than an absolute value of a difference between a pressure applied to an inside of the porous member when the printing material is led via the porous member, and a pressure applied to an inside of the ventilation path when the printing material is led via the porous member.