Apparatus and method for jet drop copying with an array of jets and photodetectors

摘要: A jet drop copying apparatus has a print head which directs row of jets toward sheet mounted on rotating drum. The extend substantially across the full width and are operated under control printing controller to series tracks extending circumferentially along sheet. shifted laterally in synchronism with drum rotation such that each is moved distance equal one track during shifting continues until solid been obtained. An illumination device provided for illuminating narrow strip document be copied projecting an image illuminated upon photodetectors. Longitudinal scanning proceeds drum, there lateral tracks.