Answer: It increased literacy
Step-by-step explanation:
The introduction of printing in China dramatically lowered the price of books, thus aiding the spread of literacy. Inexpensive books also gave a boost to the development of drama and other forms of popular culture.
Why did it increase literacy?
Printing made materials available for people to read and also access.
This helps increase the knowledge of people and more scientific work and findings evolved. Thereby increasing literacy.
Therefore, One effect of better printing methods during the Ming Dynasty is Increased literacy rates.