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Individual Function Gating for a Plurality of Print Positions

IP.com Disclosure Number: IPCOM000044621D
Original Publication Date: 1984-Dec-01
Included in the Prior Art Database: 2005-Feb-06

Publishing Venue

IBM

Related People

Authors:
Carrington, JE Westcott, GR [+details]

Abstract

Individual function gating for a plurality of print positions maintains simultaneous control over all functions that occur at different times for each print position during the process of printing a line on a high speed impact printer. This gating focuses primarily on the functions that occur when the print latch signal is on and is gated with three check bits, referred to as Enable, Fired and Handled. These functions are as follows: 1. Hammer Misfire Checking - verifies that hammer drivers do not turn "on" at the wrong time (Enable and Handled) while printing. 2. Hammer Failure - verifies that the hammer drivers turn "on" at the proper time (Fired) while printing. 3.