One speaks of slurring when the geometry of the halftone dot changes The printed image then appears to be displaced The round halftone dot assumes an oval shape Two types of slurring exist on the one hand in the direction of printing(circumferential slurring. and on the other hand transverse to the direction of printing(lateral slurring) These effects lead to a reduction in quality, and reflect the processing conditions within the group comprising the plate anket and printing cylinders, as well as on other material influences.