Smearing of Ink
This occurs when there is no clearance between the print head and the substrate. It could be caused by one of two things: (1) the material is curling, causing the edges to touch the print heads. If this is the case, try increasing the tension on the material; or (2) the print heads are set too close to the substrate. This issue can be resolved by simply resetting the print heads to a greater distance above the substrate.
Cross Web Chatter Marks
This can be caused by a loss of tension and the material slipping in the press. Adjust tension and try again.
Fine Lines in Machine Direction
A nozzle is either clogged or misdirected and must be cleaned.
In a nutshell, pinning levels, final cure levels, corona treatment levels, tension settings and run speeds are all “knobs” you can turn to try and remedy an issue or maximize print quality. Of course, these are only suggestions based on FLEXcon’s experiences in qualifying our products. Furthermore, every printer is different, even multiple machines of the same model, so reach out to your printer OEM for assistance with any printing issues you are unable to resolve on your own.