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Print Emitter System with Variable Turnaround Margin

IP.com Disclosure Number: IPCOM000049274D
Original Publication Date: 1982-Apr-01
Included in the Prior Art Database: 2005-Feb-09

Publishing Venue

IBM

Related People

Authors:
Cavill, BR Dodgen, D Thomas, D [+details]

Abstract

A linear print emitter system, as used in current printers, utilizes a three-track linear system with a print emitter track, a margin track and a turnaround emitter track. The print emitters occur every two or three print options depending on speed. The turnaround emitters are used to allow variable right margin turnaround. They are physically determined dark and light regions spaced along the carrier motion path. When stopping is desired, the carrier must move to a turnaround region and then turn. The stopping takes place within the turnaround emitter. While in this turnaround emitter, the microcontroller does not determine the direction of motion or measure the distance traveled as the turnaround emitter allows a "re-synchronization" of the print emitter counting.