International Business Machines Corporation

John A Hooten

Johnny G Barnes

Hira Advani

Patrick J Hurley

Ernest L Miller

The present disclosure relates to word processing systems wherein material to be printed is formatted on a display unit having a display, e.g., CRT display and a text formatting processor which formats the display material. The display unit further includes means for controlling a printer to print the formatted text. In the present invention a plurality of such display units share a printer. This is accomplished by having at least one of the display units comprise means for controlling the sharing of the printer by the plurality of display units and each of the other display units communicate with the printer through these printer sharing control means. At least part of this printer sharing control means is contained in the text formatting processor of the primary display unit through which the other display units communicate with the printer.

Printer sharing by plurality of display units in word processing system

The specification discloses a method for submitting a number of documents to be printed in a limited memory word processing system in which printing is a separate, nonconcurrent foreground task with typing functions. A set of print task programs is loaded into the system. A background print process is initialized for printing one or more documents. A document is submitted for printing by entering document identification information in a print queue. The document identification information includes the document name, the diskette name where the document is stored and the first and last pages of the document to be printed. The background print process sequentially prints each of the documents corresponding to the document information entered in the print queue on a first-in, first-out basis. The operator may cancel a document previously submitted for printing by deleting the document identification information corresponding to the document to be cancelled from the print queue. The operator may also change the print order of a designated document by moving document information corresponding to the designated document to a position in the queue immediately after the document which is currently being printed. The foreground print task and thus the background print process is thus terminated only when no print activity remains to be performed.

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Round Rock, TX, United States of America

John A Hooten