Patent ID: 6765696
Filing Date: 2004-07-20
Classification: H04N

Abstract:
An image reading apparatus, comprising:an image reading table on which an original is placed; a light source which illuminates the original; an image pickup section including an optical sensor which converts, into an electric signal, at least one of a light reflected from the original and a light having been transmitted through the original, and a converter which converts the electric signal into a digital signal; an image processing section which produces image data on the basis of the digital signal and can output the image data; a control section capable of controlling the light source, the image pickup section, and the image processing section so as to enter one of an operating state in which the original is read, a standby condition in which the image reading apparatus is in a standby condition while remaining able to read the original, and a power economizing state in which power to be consumed is reduced; a first switching device which connects or disconnects supply of power to the image pickup section; and a second switching device which establishes or cancels an electrical connection between the converter and the image processing section.