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Flare Block for Ink Jet Printer

IP.com Disclosure Number: IPCOM000051350D
Original Publication Date: 1981-Jan-01
Included in the Prior Art Database: 2005-Feb-10
Document File: 2 page(s) / 54K

Publishing Venue

IBM

Related People

Wilson, JT: AUTHOR

Abstract

Ink jet nozzles each having a corresponding squeeze tube can be package greater density for drop-on-demand printers by using a flare block which has squeeze tubes arranged substantially orthogonally to the row of nozzles.

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Flare Block for Ink Jet Printer

Ink jet nozzles each having a corresponding squeeze tube can be package greater density for drop-on-demand printers by using a flare block which has squeeze tubes arranged substantially orthogonally to the row of nozzles.

Referring to Figs. 1 and 2, nozzles 1 are arranged in the face 2 of a flare block 3 with ducts 4 communicating with the mating squeeze tubes 5. The flare blocks, being arranged to have a much greater dimension orthogonal to the line of nozzles, thus permit an increased number of nozzles per unit length. These blocks can be made in the diamond shape, as shown, or in other shapes to permit the formation of one or more rows of nozzles, as seen in Fig. 3. In the example shown, alternate flare blocks 3 are displaced with respect to the others, to maintain horizontal nozzle spacing, and form two displaced nozzle rows. One group of nozzles would have to be provided with delayed print signals.

Because the ducts lie in parallel planes, one method of construction is to etch each passageway in a thin sheet of silicon or similar material and then laminate a plurality of sheets to form a flare block with multiple passages. The squeeze tubes need not be arranged in a row displaced 90 degrees with respect to the nozzle row in each flare block, but should be formed at an angle which can accommodate the required number of squeeze tubes for the corresponding number of nozzles. A practical limit is reached when the angle of the extr...