Imagesetters (output devices used to generate production-quality copy for printing) have a device resolution of up to 3000 dots per inch (dpi). For Most printing –k, halftone dots are required at a rate or output resolution -50 halftone dots per inch. Dividing the imagesetter resolution by the outpost resolution, we find that a 3000-dpi imagesetter has 20 dots with which to construct the largest halftone dot required. Since these ratesper inch are linear, the largest (100 per cent) halftone dot would be 400 dots in –a (dot dots square) and a 10 per cent dot would be around –dots in area. That is more than enough to ensure –s reproduction.