Patent ID: 7170543

Claim:
An image formation device which performs an image formation process by generating a pulse signal corresponding to image data; turning on/off a laser beam emitted towards a photosensitive element based on the pulse signal so as to form an electrostatic latent image on the photosensitive element; developing the electrostatic latent image; transferring the latent image to transfer paper; and fixing the transferred image on the transfer paper, the image formation device comprising: an obtainer for obtaining shrinkage or expansion information of the transfer paper before or after the image is fixed onto the transfer paper; a changer for changing a scanning rate of the laser beam based on the shrinkage or expansion information obtained by the obtainer if the image formation process is to be performed again on the same transfer paper already having the image fixed thereon; and a converter for changing a pulse width for each pixel of the image data based on the scanning rate changed by the changer when the pulse signal corresponding to the image data is generated.