Patent ID: 8863142

Claim:
An image forming apparatus forming an image based on a job related to image formation, comprising: a CPU configured to control operation of the image forming apparatus according to an operating condition that is set to the image forming apparatus; a job management table configured to sequentially register jobs by priority; and a job execution control portion configured to: determine whether or not to permit execution of the job according to the sequence of jobs registered in the job management table; calculate, based on a job condition of the job intended for permission determination, a calculated percent of CPU utilization associated with execution of the job, wherein the calculated percent of CPU utilization associated with execution of the job is calculated by summing an actual percent of CPU utilization and an estimated percent of CPU utilization, the estimated percent of CPU utilization determined by at least one of: multiplying a default percent CPU utilization by a default latency time divided by a current processing latency time between pages of the job, wherein the default percent of CPU utilization is determined based on the job condition of the job; and multiplying the default percent of CPU utilization by a current pages processed per minute divided by a default pages processed per minute; and restricts the operating condition of the image forming apparatus when the calculated percent of CPU utilization exceeds a predetermined value, and permits execution of the job according to the restricted operating condition when the calculated percent of CPU utilization at the time of restricting the operating condition becomes the predetermined value or lower.