Wet wiping system for inkjet printheads
AssigneeHewlett-Packard Company
InventorsKedrich J. Jackson, Thomas J. Purwins
Life of this patent
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AssigneeHewlett-Packard Company
InventorsKedrich J. Jackson, Thomas J. Purwins
Estimating the term…
A wet wiping system is provided that is particularly useful for wiping an inkjet printhead that uses pigment based ink. A wet wiping method comprises an admitting step, where ink is admitted though printhead nozzles, either by firing the inkjet cartridge with a low thermal turn on energy, or through capillary action provided by placing the printhead in contact with a wicking pad. In a dissolving step, any accumulated ink residue adjacent the nozzles is dissolved with the admitted ink. In a wiping step, the admitted ink and any dissolved ink residue is wiped from the printhead. One wet wiper has a cellulose acetate polyester blade supported on at least one side by a foam block. The wicking pad may have a ramped portion for gradually contacting the printhead, or a domed wicking surface that is compressed upon contact with the printhead to facilitate the capillary action.
A method of wiping an inkjet printing mechanism, comprising the steps of:
A wet wiping system for wiping an inkjet printhead used in an inkjet printing mechanism, comprising:
An inkjet printing mechanism, comprising:
Dependencies are inferred from the claim text.