Patent ID: 7523335
Filing Date: 2009-04-21
Classification: G06F,Y02D

Abstract:
1. A job processing apparatus configured to operate in one of a plurality of operation modes including a normal operation mode and a power saving operation mode, the job processing apparatus comprising: a signal detecting section for detecting an external input signal relating to job data; a signal analyzing section being configured to analyze the external input signal detected by the signal detecting section; a job processing section that is configured to perform job processing in accordance with the job data input thereto; a main power supply portion for supplying power to the job processing section; a first auxiliary power supply portion for supplying power to the signal analyzing section, the first auxiliary power supply portion being smaller than the main power supply portion in power supplying amount; a second auxiliary power supply portion for supplying power to the signal detecting section, the second auxiliary power supply portion being smaller than the main power supply portion in power supplying amount; a power control section that is configured to selectively and separately switch on or off the main power supply portion and the first auxiliary power supply portion respectively; wherein the power control section is configured to switch off the main power supply portion and selectively switch on or off the first auxiliary power supply portion responsive to the signal detection section, when in the power saving operation mode; a control section that is configured to control the power control section; and wherein the control section is configured (a) so the first auxiliary power supply portion is switched on in the power saving mode upon detection of the external input signal by the signal detection section so as to turn on the signal analyzing section, and (b) to switch on the main power supply portion selectively according to the analyzing result of the external input signal by the signal analyzing section.