Bacon & Thomas
Ink-jet cartridge with pressure adjustment device
 A pressure adjustment device in an ink cartridge employs an elastic air bag in communication with the atmosphere through a ventilation hole in a connection body which is installed in a top wall of the cartridge housing. Response to pressure changes is increased by a spring connected between a bottom end of the air bag and a bottom wall of the cartridge housing which applies a pulling force to the bottom end of the air bag. 
Microjet Technology Co., Ltd.
B B
B41J B41J
inventional inventional
Fu-San Chin-Yi Jing-Yuan Tse-Chi
Lin Chou Ho Mou