The invention relates to an ink cartridge wherein a remaining amount of ink can be detected using an optical sensor. The ink cartridge has a window, for detection of an ink remaining amount, that is inclined at a predetermined angle with respect to the vertical direction. Inside of the ink cartridge,...http://www.google.fr/patents/US7033011?utm_source=gb-gplus-shareBrevet US7033011 - Ink cartridge, printing apparatus using the ink cartridge, and method for detecting remaining amount of ink using the ink cartridge
Ink cartridge, printing apparatus using the ink cartridge, and method for ...
