Wet capping system for inkjet printheads

Incremental printing of symbolic information – Ink jet – Ejector mechanism

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Details

347 32, B41J 2165

Patent

active

056359659

ABSTRACT:
A wet capping system is provided for inkjet printheads used in various inkjet printing mechanisms, such as printers, facsimile machines, scanners, plotters and the like. A wicking cap has an elastomeric body with an ink wicking area surrounded by a sealing lip to seal a region of the pen face surrounding the printhead nozzles. Optionally, the wicking area is lined with an elastomer or a compliant thin film, such as a sheet of mylar film, to define a wicking surface. The wicking surface draws ink from the pen through capillary action. While the pen is capped, the extracted ink dissolves any ink solids or residue accumulated around the nozzles. While useful with conventional dye based inks, this wet capping system is especially useful to remove the tough residue left on a printhead by pigment based inks.

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