1. A push-type pull printing system comprising a server and an image forming apparatus, the server sending, to the image forming apparatus, a print job including print data and a print condition instruction command for the print data, and the image forming apparatus executing a print process based on the print job, the image forming apparatus comprising: an input receiver operable to receive an input of a print condition for a file; a converter operable to convert the inputted print condition, before being transmitted to the server, to the print condition instruction command whose description language is interpretable by the image forming apparatus; and a transmitter operable to transmit the converted print condition instruction command to the server, and the server comprising: a receiver operable to receive, from the image forming apparatus, the converted print condition instruction command, a print job generator operable to generate the print job including print data for the file and the received converted print condition instruction command, and a job transmitter operable to send, to the image forming apparatus, the print job including therein the received converted print condition instruction command as the print condition instruction command, wherein the image forming apparatus receives the print job and executes print process for the print data based on the received converted print condition instruction command included in the print job.