Browse Prior Art Database

Mounting of an Ink Jet Nozzle for Adjustment During Start Up and Shutdown

IP.com Disclosure Number: IPCOM000084446D
Original Publication Date: 1975-Nov-01
Included in the Prior Art Database: 2005-Mar-02
Document File: 2 page(s) / 54K

Publishing Venue

IBM

Related People

Helinski, EF: AUTHOR

Abstract

Nozzle 10 of an ink jet printer is rigidly attached by bracket 11 to a support plate 12 pivotally mounted on a carrier member 13. Carrier member 13 is hingedly attached to a fixed base number 14 via a pair of flexure plates 16 and retention plates 17. Stop means 18 on the end of base member 14 engage extensions 19 from the carrier member 13. The flexure plates 16 bias the carrier member 13 upwardly so that the extensions 19 abut adjustable stop screws 20 of the stop means 18.

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Mounting of an Ink Jet Nozzle for Adjustment During Start Up and Shutdown

Nozzle 10 of an ink jet printer is rigidly attached by bracket 11 to a support plate 12 pivotally mounted on a carrier member 13. Carrier member 13 is hingedly attached to a fixed base number 14 via a pair of flexure plates 16 and retention plates 17. Stop means 18 on the end of base member 14 engage extensions 19 from the carrier member 13. The flexure plates 16 bias the carrier member 13 upwardly so that the extensions 19 abut adjustable stop screws 20 of the stop means 18.

The elevation of the nozzle 10 is adjustable via the screws 20.

The X plane aiming of nozzle 10 is obtained via rotation of support plate 12 on a pivot screw 21. A solenoid operated cam 22 or the like bears on the carrier member 13 at a point remote from the flexure plates 16.

For start-up or shutdown of the ink jet printer the ink jet stream from nozzle 10 through the slot 23 toward the print medium 24 tends to be diverted from the normal trajectory, due to the change in pressure applied to the ink supplied to the nozzle 10. The net result is to cause ink to make contact with the drop control elements (e.g., selector and deflector, not shown) of the ink jet printer located proximate the stream between the nozzle 10 and the record medium 24.

Therefore, at start-up or shutdown, the cam 22 is operated by its control solenoid to cause the nozzle 10 to be vertically displaced by bending the flexure plates 16, so that the i...