| 摘要 |
<p>The present invention relates to an ink supply (12) of the type having a diaphragm pump (22) that is actuated by an actuator (32) for providing ink to a printhead (16). The diaphragm pump (22) includes a diaphragm (36) and a chassis (34). The diaphragm (36) has an integral pressure plate portion (42) formed therein. The chassis (34) and the diaphragm (36) define a variable volume chamber (38). The chassis (34) has a bias portion (40) disposed therein for engaging the integral pressure plate portion (42) to urge the pressure plate (42) in a direction away from the chassis (34). The pressure plate (42) urges the diaphragm (36) away from the chassis (34) to expand the variable volume chamber (38). <IMAGE></p> |
