Ink jet print head maintenance system
AssigneeTektronix, Inc.
InventorsDonald B. MacLane, Ted E. Deur, Jeffrey J. Anderson, Donald R. Titterington, James C. Oswald, Richard S. Meissner
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AssigneeTektronix, Inc.
InventorsDonald B. MacLane, Ted E. Deur, Jeffrey J. Anderson, Donald R. Titterington, James C. Oswald, Richard S. Meissner
Estimating the term…
An ink jet print head cleaning and maintenance system has a purge chamber for applying a vacuum to a nozzle orifice surface. A specialized baffle diverts ink entering the purge chamber away a vent port through which the vacuum is drawn. An elongated wipe engages and wipes the orifice surface and is preferably moved at an extremely slow rate across the surface to enhance the wiping operation. An air knife directs a narrow stream of air across a portion of the nozzle orifice surface with air from the air stream being scanned across the surface for cleaning purposes. A specialized drip edge is positioned beneath the orifice surface for directing drops of ink away from the ink jet print head, the drops of ink being generated during the cleaning procedures. A mechanically simple cam mechanism coupled to a rotatable drum of the printer may be used to shift the maintenance system against the nozzle orifice surface for cleaning purposes.
In an ink jet print head cleaning or maintenance system for cleaning an ink jet print head having an ink jet nozzle orifice surface containing at least one orifice through which ink drops are ejected the improvement comprising:
In an ink jet printer of the type having an ink jet print head with an ink jet nozzle surface containing at least one orifice through which ink drops are ejected, the improvement comprising:
In an ink jet printer of the type having an ink jet print head with an ink jet nozzle orifice surface containing at least one orifice through which ink drops are ejected, a method of cleaning or maintaining an ink jet print head, comprising the steps of:
An ink jet print head maintenance method according to claim 42 including the step of performing the steps (a), (b) and (c) in sequence followed by repeating the step (b).
A method of maintaining an ink jet print head comprising:
Dependencies are inferred from the claim text.