STREAM BREAK-OFF LENGTH CONTROL IN AN INK JET PRINTER
Original Publication Date: 1984-Jun-30
Included in the Prior Art Database: 2004-Apr-04
Xerox Disclosure Journal
Ink jet printing of the continuous stream type is achieved by induction charging of droplets of ink as they separate from the grounded ink stream emanating from the drop generator orifice. It is necessary that the drop separation point be located within the charge tunnel to achieve accurate charging. However, operating with a break-off length which is too long rather than too short, is clearly the more dangerous situation, since the drops would be charged by the high DC deflection field and be drawn into the deflection plates; this would, of course, foul the plates and short out the deflection voltage.