Patent ID: 6386691
Filing Date: 2002-05-14
Classification: B41J

Abstract:
An ink filling system comprising:an ink cartridge for a printer capable of being refilled by an ink container having a refilling tube, the ink cartridge comprising: a) a body having a hollow interior, an ink outlet on a lower portion communicating with the hollow interior, and an open upper portion; b) a lid mounted on the body so as to cover the open upper portion; c) an ink sponge located in the hollow interior, the ink sponge having an upper surface spaced from the lid; d) a refilling hole formed in the lid; and, e) a convection hole formed in the lid and configured to hermetically receive the refilling tube of the ink container therein, a bottom of the convection hole bounded by a stop shoulder forming a ventilation hole, the stop shoulder preventing the refilling tube from contact with the ink sponge.