MULTI-FUNCTION PERIPHERAL DEVICE FOR PREVENTING THE EXCUTION OF INTERFERING OR REDUNDANT TASKS

A multi-function peripheral device serves as a peripheral device for an information processing unit and is capable of simultaneously executing a plurality of tasks of a plurality of functions by multi-task processing. The multi-function peripheral device includes: an execution command generating unit that determines the task to be executed and that generates an execution command for the task; a task execution unit for executing a task to be executed based on the execution command generated by the execute command generating unit; a presently executed task determination unit that determines any tasks presently being executed; and a task execution prevention unit that compares the any tasks presently being executed as determined by the presently executed task determination unit with the task to be executed as indicated by the execution command generated by the execute command generating unit and that, when the task to be executed matches one of the any tasks presently being executed, prevents the task execution unit from executing the task to be executed.