Digital Printing.

Digital printing differs from other types of printing in these ways:

-Every print can be different, because printing plates are not required.
-There is less waste of chemicals and paper,because there is no need to check for registration and position during the actual printing.
-The ink or toner does not permeate the surface it is being printed on, as do conventional inks.

Because there is less initial setup, digital is useful for rapid prototyping, and cost effective for small print runs.
Digital printing is used for personalized printing and print-on-demand (POD) systems. This is ideal for short run books of varying page quantities and binding.
For longer runs, traditional offset printing is more cost effective.