Patent ID: 8094329

Claim:
An image processing apparatus, comprising: an input section through which a first user inputs first user information and through which a second user inputs second user information; an authentication section that performs authentication of the first user based on the first user information and authentication of the second user based on the second user information; a job execution section that executes a first job and a second job; and a controller that controls the authentication section to perform first authentication of the first user information, and controls the job execution section to execute the first job if the first authentication is successful, and controls the job execution section to halt the execution of the first job upon receiving an interrupt inputted through the input section by the second user, and subsequently controls the job execution section to execute the second job when the first job remains interrupted; wherein the controller includes a memory that stores interrupt information indicative of a status of the execution of the first job when the interrupt occurs; and wherein the controller controls the authentication section to perform second authentication of the first user information after the second job has been initiated but before the second job has been completed, and controls the job execution section to resume the execution of the first job authentication is successful, so that the first job and the second job are concurrently executed.