Patent ID: 7102797

Claim:
An image reading device comprising: an image reading system configured to read an image on a document; a stepping motor configured to apply a drive force to the image reading system to move the image reading system; a controller configured to control the stepping motor to drive in accordance with speed patterns of the stepping motor set for each operation of acceleration, moving at constant velocity, and deceleration of the image reading system; a document feeder configured to feed the document to a predetermined document reading position where the image reading system is held stationary to read the image on the document fed by the document feeder; and a reference white plate configured to be read by the image reading system at a reference white plate reading position spaced apart from the document reading position in a moving direction of the image reading system before reading the image on the document using the image reading system to form a read image so as to correct a white level of the read image on the document, wherein the controller controls the stepping motor to drive the image reading system to move to the reference white plate reading position for reading the reference white plate while moving, and then controls the stepping motor to decelerate the image reading system when the image reading system is moved to the reference white plate reading position such that the image reading system reads the reference white plate only during the deceleration of the image reading system before reading the image on the document.