Accession Number : ADD011629

Title :   Optically Controlled Multi-Color Impact Printer.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON DC

Personal Author(s) : Everett,S L , Jr

Report Date : 08 Apr 1985

Pagination or Media Count : 12

Abstract : An inherently rugged multi-color dot matrix impact printer has a yoke-type optical code detector assembly mounted on the neck portion of an impact dot matrix print head through which a multi-colored print ribbon passes. The print ribbon is configured in alternating vertical segments of selected colors of ink which have top and bottom photo-optical code regions on the outer edge of the ribbon. Coding comprises the presence or lack of an aperture in the form of a hole which is adapted to pass light therethrough and which is aligned with each ink segment. The yoke additionally includes upper and lower light emitter/sensor pairs for sensing the coded aperture pattern to control the presence of a predetermined colored segment of printing ribbon in front of the print head.

Descriptors :   *PATENT APPLICATIONS, *PRINTING EQUIPMENT, *COLORS, CODING, INKS, SELECTION, MULTIMODE, OPTICAL DETECTORS

Subject Categories : Printing and Graphic Arts

Distribution Statement : APPROVED FOR PUBLIC RELEASE