There are two principal problems caused by electrostatic charges. The tampon, a silicon based product, touches the product to be printed. Due to the deformation of the tampon, a static charges is created and fine paint splashes may be found on the product or on the tampon. An anti-static bar neutralises the tampon on its way to and from the printing block and will resolve this problem. Contamination on the surface of the product, attracted by static, may be picked up by the tampon and remain stuck, resulting in misprints for all following products. An air supported anti-static bar cleans the product prior to printing, this will provide in better printing and less rejects.