A laser printer (10) produces an image of raster scan lines exhibiting a pitch distance p. The printer (10) includes a photoreceptor (36) and n laser sources (51), where n ≥ 2. First and second sets of laser sources (51), in one embodiment, produce plural optical beams (34,34') which, when imaged on the photoreceptor (36), are separated by pitch distance p in the direction of movement of the photoreceptor (36). The first set and second sets of laser sources (51) are separated by a distance SPR=c(1+qr)p, where: c = number of laser sources (51) in each set, q = an integer, and r = number of rows of laser sources (51) in both the first and second sets. The optical beams (34,34') are modulated with pixel value data in accordance with a correspondence of image scan lines and positions of the optical beams (34,34') on the photoreceptor (36). The photoreceptor (36) is moved by a distance (q·c·r)p between scans. In such manner, an interleaving of the scan lines is achieved, which allows substantial separation of laser diodes (51) on a laser diode chip (50).