Method of operating an inkjet printhead
AssigneeTonejet Limited
InventorsAndrew John Clippingdale, Robert James Greasty, Jonathan James Michael Halls
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Abstract
A method of operating an electrostatic ink jet printhead, the printhead comprising: one or more ejection tips from which, in use, ink is ejected, the one or more ejection tips defining a tip region; a printhead housing, the printhead housing defining a cavity in which the one or more ejection tips are located; the method comprising the steps of, during a printing operation, passing a vapour into the cavity to reduce evaporation of ink in the tip region.
Claims24
A method of operating an electrostatic ink jet printhead, the printhead comprising:
- one or more ejection tips from which, in use, ink is ejected, the one or more ejection tips defining a tip region;
- a printhead housing, the printhead housing defining a cavity in which the one or more ejection tips are located;
- the method comprising the steps of, during a printing operation, passing a vapour into the cavity to reduce evaporation of ink in the tip region.
An electrostatic ink jet printhead assembly comprising:
- one or more ejection tips from which, in use, ink is ejected, the one or more ejection tips defining a tip region;
- a printhead housing, the printhead housing defining a cavity in which the one or more ejection tips are located;
- and
- a tank configured to supply both a vapour and a rinse fluid to the cavity.
An electrostatic ink jet printhead assembly comprising:
- one or more ejection tips from which, in use, ink is ejected, the one or more ejection tips defining a tip region;
- a printhead housing, the printhead housing defining a cavity in which the one or more ejection tips are located;
- a tank configured to supply a vapour to the cavity;
- and
- a first flow controller configured to control the flow rate of the vapour into the cavity.
Dependencies are inferred from the claim text.