Patent ID: 8705059

Claim:
An image processing apparatus connectable to an external electrical power source, comprising: a job implementing section to implement a job in regard to image data; an electric generator section; an electrical accumulator section to accumulate an electric power generated by the electric generator section; and a controlling section configured to: calculate a charging time necessary to accumulate, in the electrical accumulator section, the electric power sufficient for implementing the job, compare the charging time with an allowable delay time set by the user, when the charging time is equal to or smaller than the allowable delay time, set a job implementing mode of the job implementing section to a first job implementation mode in which the job is implemented by employing the electrical accumulator section without employing the external electric power source, and when the charging time is larger than the allowable delay time, set the job implementing mode of the job implementing section to a second job implementation mode in which the job is implemented by employing at least the external electric power source, wherein, when the amount of electric power charge, currently stored in the electrical accumulator section, is in short supply for implementing the job, the controlling section further notifies the user, who inputted the job concerned, of a message indicating a shortage of electric power charge being necessary for implementing the job, and accepts the user's operation for establishing the allowable delay time.