Patent ID: 8004715
Filing Date: 2011-08-23
Classification: H04N

Abstract:
1. An image forming apparatus comprising: a scanning unit configured to be operable to simultaneously scan a plurality of lines of an image in a main scanning direction to thereby form an image of the plurality of lines; a characteristic storage unit configured to store an error characteristic, in a sub-scanning direction with respect to an ideal scanning line, of a scanning line of the scanning unit in a main scanning direction thereof; a storage unit configured to store a plurality of lines of image data; a line selector configured to select a line of image data that is read out of the storage unit; an interpolation unit configured to interpolate the image data of the line, which has been selected by the line selector and read out, in accordance with the error characteristic stored in the characteristic storage unit; a unit configured to store a revised pixel position in the main scanning direction in the image data; and a changeover control unit configured to change over the line of image data, which is selected by the line selector, in accordance with a scanning line changeover position in the main scanning direction, which is based upon the error characteristic stored in the characteristic storage unit, and the revised pixel position.