ILLICIT RETURN PREVENTION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a method that precludes return of a book other than correctly distributed books in a bookselling industry. SOLUTION: In a circulation form based on the premise that unsold merchandise is returned to a supplier, the illicit return prevention method affixes a code of a destination to merchandise invisibly when the supplier supplies it, and checks the destination code affixed to the merchandise when it is returned to determine whether the code coincides with a destination name or not.