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Midline Stopping at Character Boundaries With a Multi-Line All-Points- Addressable Print Head

IP.com Disclosure Number: IPCOM000061650D
Original Publication Date: 1986-Sep-01
Included in the Prior Art Database: 2005-Mar-09

Publishing Venue

IBM

Related People

Authors:
Czyszczewski, J Le, TN Loflin, B Sulemanji, S Van Durrett, W Wilson, JH [+details]

Abstract

A method is described for stopping in the middle of a proportionally spaced swath on a letter quality printer that prints more than one line in each print pass. This method can be applied to any printer with a matrix style print head that has the ability to print more than one line of proportionally spaced text per pass and needs to maintain letter quality character quality, but does not have a full line data buffer. A technique is used for managing print data to prevent character splitting when a midline stop is required. The method is used on a letter quality matrix printer that has a 128 pel (print element) head and prints a one-half-inch high swath of data with each print pass.