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Pipeline Impact Print Controls

IP.com Disclosure Number: IPCOM000064068D
Original Publication Date: 1985-May-01
Included in the Prior Art Database: 2005-Feb-18

Publishing Venue

IBM

Related People

Authors:
Westcott, GR [+details]

Abstract

The nucleus of most impact printer control unit architectures is that a portion of the logic in the print controls that reads the buffers, i.e., Print Line Buffer (PLB), Band Image Buffer (BIB) and Control Buffers, compares the print and band data in the PLB and BIB, initiates a hammer fire and then writes control data (check data, hammer settle data, etc.) in the Control Buffers (Check Buffer, Print Control Buffer, etc.). The functions performed in this nucleus are referred to as a print position option time and have a serial sequence requiring many decisions or clock points (normally 8 to 12). The speed of these print controls can be doubled in a design referred to as Pipeline Impact Print Controls (PIP).