Technically
Speaking,
What Makes Epic's Delta® Dampening
System Superior?
Epic's
Delta® Dampening
System gear-drives the form roller at a lower surface speed
than that of the plate. Technical illustration 
The dampening form roller is separate from the inking system,
allowing for the retention of all ink form rollers. Technical
illustration 
With a separate variable-speed drive motor and
water control adjustments, a precisely metered, thin film of
dampening solution
is applied as required across the plate.
In
addition, ghosting can be reduced with the use of another exclusive
Delta
feature, the
air-activated oscillating bridge roller.