The press which can print atleast one color on both sides of a sheet in a single pass through the press 

In ----------- direction, the blanket is to be mounted around the circumference of the blanket cylinder.

-------------type of blanket resists smash in a better manner. 

The roller substituted for form roller to reduce ghosting

The formula to calculate the print contrast

A revolving, motorized cone-shaped device that runs on a track from one end of the ink fountain to the other, keeping the ink soft and flowing