In an apparatus for forming an electrostatic latent image in a form of dot for each pixel on a photoreceptor, each pixel has plural color component signals and a dot is formed for each of color component signals in the same imaging unit area. A signal processing circuit processes specific color component...http://www.google.fr/patents/US5432611?utm_source=gb-gplus-shareBrevet US5432611 - Image forming apparatus with sub-pixel position control
Image forming apparatus with sub-pixel position control