To provide a secure printing system configured such that even if a
designated printer is unavailable, printing can be performed with another
printer without regard to the difference in models.
The secure printing system comprises: a client PC for creating print data
for secure printing; one or more printers for performing printing; an
authentication data acquisition means provided for each of the printers
to obtain the authentication data of a user who creates the print data
and a print control PC wherein there is a step in which if the client PC
creates the print data, then it holds the print data therein as well as
notifying the print control PC of at least authentication information on
the user; a step in which if the authentication data acquisition means
obtains authentication information on the user, then it sends the
authentication information to the print control PC along with information
on a corresponding printer; a step in which the print control PC performs
an authentication using these pieces of authentication information; a
step in which if the authentication is successful, then the print control
PC notifies the client PC of a print approval along with the information
on the printer; a step in which the client PC sends the print data to the
printer; and a step in which the printer performs printing are performed.