Patent ID: 6950953

Claim:
A multifunctional printer, comprising: a main controller that controls an entire multifunctional printer; a main power unit that supplies power to said main controller; an energy saver controller that shuts down the power supply from said main power unit to said main controller at a predetermined condition and restores the power supply from said main power unit to said main controller upon detecting a factor canceling the power supply shut-down; an interface unit that informs said energy saver controller about the factor canceling the power supply shut-down when an external terminal apparatus transmits a printing request to the multifunctional printer; and a sub power unit that supplies power to at least said energy saver controller and said interface unit separately from said main power unit, the interface further does not inform said energy saver controller about the factor canceling the power supply shut-down when the external terminal apparatus accesses the multifunctional printer to monitor a status of the multifunctional printer.