SCHEMA:
CREATE TABLE table_10528691_4 (print_resolution__dpi__resolution_is_given_in_dots_per_inch__dpi_ VARCHAR, introduction VARCHAR)
USER:
What is the print resolution (FPI) for December 2002?

QUERY:
SELECT print_resolution__dpi__resolution_is_given_in_dots_per_inch__dpi_ FROM table_10528691_4 WHERE introduction = "December 2002"