Patent ID: 8462393

Claim:
An image reading apparatus that reads an image of an original placed on a contact glass and outputs the read image as printing data according to a paper size or a printing magnification which has been set, comprising: the contact glass having a light control glass part that has transmittance which is changed according to a voltage being applied, and having one side that acts as an original placement surface; a scanner part that reads the original placed on the contact glass and outputs image data of the read original in a storage part; a projector part that projects image information onto the contact glass from a side of the contact glass opposite to the original placement surface; a display part that displays the image information; an operation part for setting execution of reading by the scanner part and an image processing operation to be carried out on the image data stored in the storage part; and a control part that controls the voltage to be applied to the light control glass part, wherein the projector part carries out first image displaying of projecting thumbnails or an image that has been selected to have the image processing operation carried out or be printed, based on the image data stored in the storage part, the display part carries out second image displaying obtained from the first image displaying being reduced in size, at a time of the scanner part being operated, the control part controls the voltage to increase the transmittance of the contact glass, and the projector part stops projecting the image information onto the contact glass, at a time of the scanner part not being operated, the control part controls the voltage to decrease the transmittance of the contact glass, and the projector part carries out the first image displaying of projecting the image data stored in the storage part as the image information onto the contact glass, and setting, by the operation part, of the image processing operation to be carried out on the image data stored in the storage part is reflected on the first image displaying and the second image displaying.