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Browse Prior Art Database

FOCUSED ION STREAM PRINTING ARRAY

IP.com Disclosure Number: IPCOM000027213D
Original Publication Date: 1995-Oct-31
Included in the Prior Art Database: 2004-Apr-07
Document File: 2 page(s) / 89K

Publishing Venue

Xerox Disclosure Journal

Abstract

Ionographic printing with a focused ion stream as disclosed in U.S. Patent No. 5,257,045, in some applications, use a printing array pattern that includes a set of staggered aperture holes. This array pattern does not utilize all of the ions available because some of the conductive region is needed to maintain the corona and some is needed to surround each aperture for gating purposes. Much of the conductor away from the apertures simply acts to sink coronode current, thereby reducing efficiency.

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XEROX DISCLOSURE JOURNAL

FOCUSED ION STREAM PRINTING ARRAY US. C1.346/140 Richard F. Bergen

Proposed Classification Int. C1. Gold 15/16

I2 rrlo

16 I I

I 14

'f /I2

Vd

FIG. I

.z

Ir

FIG. 2A

FIG. 26

XEROX DISCLOSURE JOURNAL Vol. 20 No. 5 September/Odober 1995 421

[This page contains 1 picture or other non-text object]

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FOCUSED ION STREAM PRINTING ARRAY (Cont'd)

Ionographic printing with a focused ion stream as disclosed in U.S. Patent No. 5,257,045, in some applications, use a printing array pattern that includes a set of staggered aperture holes. This array pattern does not utilize all of the ions available because some of the conductive region is needed to maintain the corona and some is needed to surround each aperture for gating purposes. Much of the conductor away from the apertures simply acts to sink coronode current, thereby reducing efficiency.

Two rows of staggered apertures shown in FIG. 1 on the gating side are typically employed in a focused ion stream printing array 10 that includes apertures 12 in conductors 14 positioned with respect to a coronode wire 16. An improved and more efficient ion printing dual array pattern 20 is shown in FIGS. 2A and 2B. FIG. 2A shows the gating side of an electrode pattern of a dual aperture array 20 and FIG. 2B shows the receiver side of the electrode. In FIG. 2A, the outer rows of apertures 12 provide charge to each aperture for deposition to an image spot. This area would otherwise act as a sink for charge....