Patent ID: 8831460

Claim:
An image forming apparatus, comprising: an obtaining unit obtaining a start time of planned power outage; an input unit receiving an input of job executing conditions; a calculating unit calculating, if execution of a job is instructed, a job completion time necessary for completing the job, using the job executing conditions; a determining unit calculating an end time of said job of which execution has been instructed, using said job completion time, and determining whether or not the end time of said job is before said start time of planned power outage; a specifying unit specifying, if it is determined by said determining unit that the end time of said job is not before said start time of planned power outage, a part of processing of said job that can be completed before said start time of planned power outage; and an executing unit executing said job; wherein said executing unit starts said job if it is determined by said determining unit that the end time of said job is before said start time of planned power outage, and starts said part of processing of said job specified by said specifying unit if it is determined by said determining unit that the end time of said job is not before said start time of planned power outage.