plate 34 each dye orifice has associated with it a control tube 60 which is precisely aligned with the dye stream from the respective orifice through use of the control tube modules and the alignment system disclosed herein in operation each individual stream emerging from the orifice plate 34 passes in close proximity to the open end of a corresponding control tube 60 through which a stream or burst of pressurized control fluid such as air can be intermittently passed in accordance with electronically encoded patterning information the electronically encoded patterning instructions are appropriately sequenced to compensate for the relative positions of the various gun bars along the path of the substrate and directed to the appropriate individual electrically actuated fluid valve associated with each control tube when the valve associated with a given tube directs pressurized air through the control tube 60 the resulting control stream intersects the trajectory of the continuously flowing dye stream and diverts the dye stream sufficiently that the stream strikes shielding blade 36 and passes into dye collection trough 38 and into the dye recirculation system for that gun bar also shown in cross section in fig2 is reaction beam 70 by which the alignment of the orifices in orifice plate 34 can be brought into precise alignment along a plane perpendicular to the substrate so that the orifices form a straight line or the resulting emerging dye streams define a plane along the length of the gun bar beam 70 is a box girder like structure.