| 摘要 |
<p>B-669 INK DROP DEFLECTOR An ink drop deflector is described for use with ink jet printing devices to deflect, as desired, electrically neutral ink drops ejected from an orifice in an ink jet printing device along a free flight trajectory. The ink drop deflector includes in one form a pair of differently sized electrodes which are positioned adjacent the trajectory near the orifice to create a non-uniform electric field with a sufficient potential gradient to deflect neutral ink drops with a relative low switching voltage. In another form of the invention, a plurality of electrodes are so placed adjacent an ink drop trajectory so as to cooperatively produce an electrostatic ink drop deflection force in a desired direction while cancelling force components in other directions. Several embodiments are illustrated including an array of ink drop deflectors.</p> |
