The following points may help you:
a. . To cater to more and more audience and growing demand, woodblocks printing became popular
b.. To increase the pace of printing so that more material could be published, major breakthrough came about through Technological inventions and developments in the print technology involved first movable type which included movable pieces of metal type
c. To bring about production of more cheaper and quicker printed material due to rising demand of the people, because of growing literacy rate, printing press came to be developed.