A computer type setting device (CTI) performs layout of letters and graphic information of a manuscript on printing plates, based on the data transmitted from a keyboard. During such an operation, plate layout data LD such as the font, size, word spacing and line spacing, are determined. Raster image...http://www.google.com/patents/US5335315?utm_source=gb-gplus-sharePatent US5335315 - Method for determining a graphic area ratio of a printing plate and an apparatus therefor
