Patent ID: 9141897
Filing Date: 2015-09-22
Classification: G06F,G06K,H04N,Y02D

Abstract:
1. An image forming apparatus comprising: a print engine portion that performs printing on a sheet; a pyroelectric sensor; a signal generation portion that receives an output of the pyroelectric sensor to generate a different level of signal according to whether or not an output value of the pyroelectric sensor exceeds a predetermined threshold value; a recognition portion that: a power supply portion in which, wherein in the power-saving mode, in a case where the determined measurement value does not fall within the second range, the recognition portion determines whether or not to cancel the power-saving mode based on operation or input on the image forming apparatus, and when the power-saving mode has to be canceled, the power supply portion cancels the power-saving mode by restarting power supply to all portions to which power has been stopped to be supplied in the power-saving mode.