To manage a time limit of print data in consideration of a required time limit for print completion while preventing the occurrence of a state that printing stops in the middle because of the shortage of a print material.

In a print system, a print apparatus Pr causes a job use material determining unit 12 to acquire required print material information such as a sheet required for the execution of print data from the print data and causes a due date information extracting unit 13 to acquire due date information. The print apparatus Pr reserves the print data as reserved job data in a reserved job data storage part 18 when a print availability determining unit 16 compares required print material information with the possessed print material information of a print material such as a sheet held by the print apparatus Pr obtained by a material information detecting unit 17, and performs print availability determination to determine that printing is impossible. The print apparatus Pr resisters it in a print cue of a print job data storage part 19 when a remaining time-to-due date determining unit 15 determines that a time to the due date of the reserved job data is shorter than a remaining time to a due date indicated by a remaining time-to-due date indicating unit 21.