Disclosed is a system that can precisely obtain process results, such as a paper ejection end, from a printer that receives and processes a print job, while reducing the load imposed on a network and the process loads imposed on the printer and a data processing apparatus. According to the present invention, from among all log information stored in the printer, a predetermined number of log information sets, beginning with the latest log, are obtained, and based on the obtained log information, the process result for the job is determined.