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Accumulating Printer Spaces to Improve Printing Performance

IP.com Disclosure Number: IPCOM000061653D
Original Publication Date: 1986-Sep-01
Included in the Prior Art Database: 2005-Mar-09

Publishing Venue

IBM

Related People

Authors:
Carter, KE [+details]

Abstract

The Class E printer, QuietWriter*, provides a command to advance the printhead in units which do not match the active pitch. This command degrades printing performance and expends printer ribbon. The DisplayWrite* 3 test processing program for the IBM Personal Computer (PC) allows the operator to print lines containing overstruck, bold, and underscored text. Lines containing overstruck text require a separate pass to print the overstriking characters. Lines containing underscored text may require a separate pass to underline the correct area. For the Class E printer, such as the IBM QuietWriter printer, lines containing bolded text also require a separate pass. Whenever one of these passes is made, the printhead is positioned at the correct location within the line which requires processing.