Heavy ink ﬁlms in the ﬁrst few units are transferring ink onto down lane blankets.
Run heavy coverage inks in the last unit.
Blankets are not releasing ink well; blankets are incompatible with ink system.
Change to a more compatible blanket. Consult your Sun Chemical representative.
Ink tacks out of printing sequence.
Check with your ink supplier to ensure correct ink tack.