R.r. Donnelley and Sons Company

Charles A Cornelius

James L Warmus

J Thomas Shively

Ilario J Alvino

Linda M Krause

Thomas E Ahlswede

Dennis M Beach

Albert C Loo

Gerald K Sands

Glenn E Dieckmann

John S Robinson

Mary O Bukowski

Steve L Coffman

A digital page imaging (DPI) system receives customer transmitted technical document files produced on a desktop publishing package and ensures that the documents are produced properly. The system provides an easy to use interface, reduces turnaround time in processing customer work, and eliminates errors associated with manual imposition processes. The DPI system consists of a work station, modem and related telecommunication link, a photo typesetter and a software package for automatically imposing flats for printing on the typesetter.

Digital page imaging system

A printing system and method is disclosed herein which is capable of emulating any of a plurality of phototypesetters to create a proof comprising at least one glyph on a reproduction medium from composition data. The proof is created from page and font data encoded in any of a plurality of formats, such data including an identification of the particular format in which the data is encoded. The system processes the font data and page data a first time in accordance with the identification to derive an encoded representation of the glyph to be reproduced. The system processes the page data a second time in accordance with the identification to derive character and typesetting commands which together define the placement of the glyph on the reproduction medium. An output device is controlled by the system in accordance with the encoded glyph representation and the character and typesetting commands to create the proof on the reproduction medium. The system is capable of emulating any one of a plurality of phototypesetters and can reproduce proofs on inexpensive medium, such as plain paper.

Printing systems for typesetter emulation

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Wheaton, IL, United States of America

Charles A Cornelius