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Packaging Ink Jet Nozzle Arrays

IP.com Disclosure Number: IPCOM000083184D
Original Publication Date: 1975-Apr-01
Included in the Prior Art Database: 2005-Mar-01
Document File: 2 page(s) / 21K

Publishing Venue

IBM

Related People

Narken, B: AUTHOR [+2]

Abstract

In the fabrication of ink jet nozzle arrays, it is necessary to form nozzles to extremely tight tolerances for the shape of the nozzle as well as for nozzle-to-nozzle spacing. One way of forming such an array of nozzles is described.

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Packaging Ink Jet Nozzle Arrays

In the fabrication of ink jet nozzle arrays, it is necessary to form nozzles to extremely tight tolerances for the shape of the nozzle as well as for nozzle-to- nozzle spacing. One way of forming such an array of nozzles is described.

Referring to Fig. 1, a nozzle material 4 in thick-walled tube form of original dimensions 1/4 to 1/2" O.D. and 1/32 - 1/128" I.D. is precisely ground to square or rectangular dimensions (Fig. 2), which is then redrawn to about 0.010" O.D., maintaining the square or rectangular shape on the outside and circular cross- section inside.

These smaller rods are then packaged, as shown in Fig. 3, by heating a bundle of symmetrically-placed rods just above the softening point of the nozzle glass, to affect bonding at the interfaces of the rods. The resulting assembly is then sliced off to obtain thin plates containing an array of nozzles.

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