A method and system for collecting a plurality of slurries containing solid particles of varying particle size distribution and amount and performing a classification and separation on the slurries is provided whereby a fines-rich stream and a stream containing substantially coarse particles is obtained. To deposit the ink accurately on the boards they are advanced by pinch and drive rollers which also ensure that the boards are flat as they move past the jets. The inner passage includes an inner passage shell and the fan comprises vanes extending inward from the inner passage shell and turned at approximately a 45 degree angle to a centerline of the inner passage.