Why is movable type printing, which became popular in western Europe immediately, not widely used in China?

Because there is no basis for use, the development of printing is directly related to the development of journalism. Europe needs to publish a large number of religious publications (the predecessor of journalism), so journalism was born, which made printing useful and required printing to develop in an advanced direction. Although there is printing in China, the demand for it is not strong. China basically does not need a lot of printed things, so there is no market for printing and there is no driving force for its development.