| 摘要 |
<p>A Printhead, particularly suitable for viscous or particle-filled fluids, with multiple channels is proposed. A channel of the printhead is characterized by a micro-electro-pneumatic circuit 2 containing a series circuit between a first and second pressure level out of a micro-valve 18 and a pneumatic throttle 23, for generating a control pressure p c at the common pneumatic node 5 of micro-valve 18 and pneumatic throttle 23, further a drop-on- demand fluid ejector 4 with a diaphragm 8 actuated by the control pressure pc, the fluid ejector 4 controlling the fluid discharge through fluid outlet 6.</p> |
