Air draft are blowing on the cylinder
Eliminate air draft
Doctor blade wipe is improper
Check and reset doctor blade setting
Ink is drying too fast
Add slower drying solvents
Ink is short bodied
Add clear extending varnish
Ink resolubility is poor
Use active solvent or reformulate the ink
Ink viscosity too high
Reduce ink viscosity
Press speed is too fast
Decrease press speed or increase ink flow to applicator
Print impression is excessive
Reset for lighter impression
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