Peripheral multifunction device

摘要

A peripheral multifunction device includes a CPU performing data transmission and reception between the device and an information processing unit in a multiplex communication mode so that a plurality of functions of the device are performed and a storage unit for storing various data including the data received by the CPU. The CPU further judges a remaining capacity of the storage unit. A processing of storing in the storage unit the data concerning at least one of the functions of the peripheral multifunction device when the judged remaining capacity of the storage unit is at or below a predetermined value.