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Browse Prior Art Database

Nonimpact Printer

IP.com Disclosure Number: IPCOM000089792D
Original Publication Date: 1977-Dec-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 49K

Publishing Venue

IBM

Related People

Wicklund, HP: AUTHOR

Abstract

This article describes a nonimpact printer which utilizes an array of fixed points arranged so that ink can be deposited from the point array on an adjacent copy sheet.

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Nonimpact Printer

This article describes a nonimpact printer which utilizes an array of fixed points arranged so that ink can be deposited from the point array on an adjacent copy sheet.

The printer comprises an array of pointed electrodes 10 (Fig. fixed adjacent to a common plate 12 so that a print sheet 14 can be moved between the array and common plate for printing. As shown in Fig. 1A, the array of pointed electrodes 16 are mounted in suitable rows in an ink tray 18, and each point (one shown) is isolated from tray 18 by insulation 19. Ink is provided in the ink tray to a level so that the points are just protruding above the ink level. Electronic switching means 20 is provided to selectively connect the voltage from source 22 to each of the pointed electrodes 16. The level of voltage from source 22 is operable to cause deposition of ink in an area adjacent each of the activated points on print sheet 14 so that printed data can be formed by selectively actuating the array of switching means 22 to activate the associated pointed electrodes as the paper is moved through the print mechanism.

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