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Printing by Electrical Spark on Thermal Paper

IP.com Disclosure Number: IPCOM000084721D
Original Publication Date: 1975-Dec-01
Included in the Prior Art Database: 2005-Mar-02
Document File: 2 page(s) / 25K

Publishing Venue

IBM

Related People

Aviram, A: AUTHOR

Abstract

Thermal printing is accomplished by using heat generated from sparks. A heat-sensitive paper 1 is mounted on support member 2. The paper can be held stationery or may have a vertical movement using a moving carriage. A stylus 3 having an associated AC voltage source 4 is mounted proximate to support 2. Where the paper is held stationery, stylus 3 is made to traverse the paper in both horizontal and vertical directions.

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Printing by Electrical Spark on Thermal Paper

Thermal printing is accomplished by using heat generated from sparks. A heat-sensitive paper 1 is mounted on support member 2. The paper can be held stationery or may have a vertical movement using a moving carriage. A stylus 3 having an associated AC voltage source 4 is mounted proximate to support 2. Where the paper is held stationery, stylus 3 is made to traverse the paper in both horizontal and vertical directions.

In operation, when a voltage is applied to stylus 3 from AC source 4 a spark is generated between the support number 2. The heat from the generated spark produces a spot on the heat-sensitive paper 1.

For speed printing a plurality of styli may be used, each being synchronized to produce a plurality of dots or characters simultaneously.

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