According to the present invention, printing-job information relating to
printing jobs present within a print server and printing-job information relating
to printing jobs present within a printer can be displayed at a time, and the user
can precisely know all printing jobs to be processed by the printer. Even if the
user does not know whether a printing job is present within the print server or
within the printer, a change in a schedule of a printing job assigned by the user
can be appropriately performed in the print server or the printer.
