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Typing Spaces on a QUIETWRITER Printer

IP.com Disclosure Number: IPCOM000040571D
Original Publication Date: 1987-Dec-01
Included in the Prior Art Database: 2005-Feb-02
Document File: 1 page(s) / 12K

Publishing Venue

IBM

Related People

Clark, RE: AUTHOR

Abstract

In using a QUIETWRITER printer connected to a personal computer (PC) so that the keyboard of the PC functions as a typewriter keyboard with the printer having a sheet of paper therein to print as the keys of the keyboard are depressed, the carrier of the printer is moved in response to each depression of the spacebar without modifying the printer in which a space accumulation algorithm controls when the carrier of the printer moves during use of the printer under control of the PC memory rather than as a typewriter. To save ribbon, the QUIETWRITER printer does not move when a space is sent to it from the PC memory. Instead, the printer, which has a space accumulation algorithm, accumulates spaces and turns them into tab operations, which do not use ribbon, when more than a predetermined number of spaces is received in a row.

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Typing Spaces on a QUIETWRITER Printer

In using a QUIETWRITER printer connected to a personal computer (PC) so that the keyboard of the PC functions as a typewriter keyboard with the printer having a sheet of paper therein to print as the keys of the keyboard are depressed, the carrier of the printer is moved in response to each depression of the spacebar without modifying the printer in which a space accumulation algorithm controls when the carrier of the printer moves during use of the printer under control of the PC memory rather than as a typewriter. To save ribbon, the QUIETWRITER printer does not move when a space is sent to it from the PC memory. Instead, the printer, which has a space accumulation algorithm, accumulates spaces and turns them into tab operations, which do not use ribbon, when more than a predetermined number of spaces is received in a row. If the predetermined number of spaces is not received in a row, the printer prints the spaces and uses ribbon but is maintained in slew to speed printing. When using the printer in a typewriter mode in which paper is disposed within the printer and each character is printed as a key of the PC keyboard is depressed, it is desired to use ribbon when printing spaces embedded in text such as between words or at the end of the sentence, for example, to maintain print slew but not to use ribbon when at the end of a line of text or when there is a plurality of spaces in a row. When the spacebar is depressed, a...