Madson & Metcalf
Pressure regulation apparatus for ink reservoir
A pressure regulation apparatus for an ink reservoir is provided. The apparatus includes: an elastic bag mounted in the ink reservoir for freely passing an ambient air of an ambient environment outside the ink reservoir in and out the elastic bag, wherein the ink reservoir has an interior for holding an ink, and a porous filter mounted in the ink reservoir for entering the ambient air outside the ink reservoir into the interior of the ink reservoir therethrough, thereby the elastic bag and the porous filter complementarily regulating a pressure difference between the interior of the ink reservoir and the ambient environment outside the ink reservoir. By this apparatus, the pressure change within the ink reservoir is able to respond immediately for a big pressure change by the elastic bag and to regulate sensitively for a slight pressure change by the porous filter.
Microjet Technology Co., Ltd.
B B B B
B41J B41J B41J B41J
inventional inventional inventional inventional
Rong-Ho Cheng-Min
Yu Chang