Selective Surface Coating And/or Treatment Of Printing Pins

Typical printing pins are susceptible to variations in pin surface print surface printing speed and environmental conditions such as humidity. Precise control over these conditions along with pre-printing can reduce the degree of inconsistency in printed spot size and volume. However the precise control can require a skilled user to supervise the process. Furthermore the rate of printing is slowed down decreasing throughput and efficiency of the printing process. Printed spot size can become irregular requiring a lower density of printed spots. Pre-printing to a dummy surface is standard protocol to remove excess material from the exterior of the printing pins prior to starting the intended printing. However pre-printing wastes material and causes a delay which lowers printing throughput and efficiency.