| 摘要 |
This patent describes an ink jet printer which relies upon a gear driven shutter mechanism to block or allow the ejection of ink from a nozzle chamber. The shutter is placed in the fluid passage between the reservoir and nozzle chamber. The shutter includes a ratcheted edge for dividing the shutter to an open or closed position via the utilization of an actuator driven driving means. The driving means includes a gearing mechanism which results in a reduced driving frequency of the ratcheted edge relative to the frequency of operation of the driving means. The gearing can be driven by utilizing a conductive element in a magnetic field to exert a force on a cog of a gearing mechanism. The conductive element includes a concertinaed structure designed to expand or contract upon movement of the conductive element. Further, retainers are utilized in guiding the shutter between the reservoir and the nozzle chamber.
|
