Patent ID: 6229593
Filing Date: 2001-05-08
Classification: G06K

Abstract:
An exposure device comprising:a light emitting element array including (N.times.M) numbers of light emitting elements disposed linearly;M numbers of data holding and outputting means for holding and outputting N numbers of pixel data, said M numbers of data holding and outputting means being adapted to shift the pixel data held therein and take supplied other pixel data when the other pixel data is supplied to said M numbers of pixel data holding and outputting means;driving means for driving said (N.times.M) numbers of light emitting elements in said light emitting element array, simultaneously, according to the (N.times.M) numbers of pixel data outputted from said M numbers of data holding and outputting means when a stated control signal is inputted thereto;shift quantity designating means for designating the quantity of shift;storing means for storing pixel data contained in time-series image data as inputted;data adding means for adding first non-emission pixel data perpendicular to a feeding direction of the number corresponding to the quantity of shift before the stored pixel data, every time a predetermined quantity of pixel data is stored in said storing means, said non-emission pixel data is pixel data relating to said light emission elements which do not emit the light; anddividing and supplying means for adding second non-emission pixel data after the pixel data to which the first non-emission pixel data has been added so that the total number of pixel data becomes (N.times.M), and supplies the (N.times.M) numbers of pixel data as obtained to said M numbers of data holding and outputting means N numbers by N numbers.