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Ink Jet Nozzles in a Ring Array

IP.com Disclosure Number: IPCOM000085600D
Original Publication Date: 1976-May-01
Included in the Prior Art Database: 2005-Mar-02
Document File: 2 page(s) / 66K

Publishing Venue

IBM

Related People

Bruce, GD: AUTHOR

Abstract

Shown in Fig. 1 is a rotating drum 10 which carries a paper to be printed by binary (on-off) or raster ink jets in a ring array 12. Raster ink jet printing is described in the article entitled "Ink Jet Printing", by Fred J. Kamphoefner, IEEE Transactions on Electronic Devices, Vol. ED-19, No. 4, April 1972, pages 584593.

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Ink Jet Nozzles in a Ring Array

Shown in Fig. 1 is a rotating drum 10 which carries a paper to be printed by binary (on-off) or raster ink jets in a ring array 12. Raster ink jet printing is described in the article entitled "Ink Jet Printing", by Fred J. Kamphoefner, IEEE Transactions on Electronic Devices, Vol. ED-19, No. 4, April 1972, pages 584593.

In operation, the ring 12 is translated parallel to the axis of the drum 10. As the drum 10 rotates, drive for rotating drum 10 and translating ring 12 comes from driven shaft 14. The rotational velocity for drum 10 and translational velocity of ring 12 are controlled by gears in the gearbox 16 and the pitch of the drive screw 18. Drive screw 18 engages ring 12 in a threaded section 20. Ring 12 also rides on guides 22 and 24.

Each of the ink jet nozzles in the ring 12 is a binary (onoff) or a raster nozzle. The ink droplets coming from each ink jet nozzle have the capability of deflection in a plane perpendicular to (Fig. 2), or parallel to (Fig. 3), the axis of the drum 10 as the ring 12 translates parallel to the axis of the drum 10. Ink is supplied to the nozzles via the hoses 26.

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