Poor or no ink transfer onto the substrate, evident as a partial image or a missing portion. 



- Low areas on the plate;

- Poor plates or make ready;

- Impression set too light;

- Failure to lock down deck;

- Plate cylinder bounce;

- Print station out of parallel.



- Check calliper of printing plates for variations;

- Check impressions to determine accuracy of plates;

- Re-adjust impression settings for plate and/or anilox rolls;

- Check deck locking nuts;

- Check concentricity of plate cylinder or gears. Observe the condition of shafts, journals, bearings and gears for cleanliness or excessive wear;

- Reset print station for side-to-side parallel;