Method and device for maintaining a nozzle print head
AssigneeDover Europe SàRl
InventorsDamien Bonneton, Camille Gobin, Jean-François Abadie, Jean-Marie Rolland, Niklaus Hugi
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Abstract
A method is provided for cleaning a print head, wherein the print head includes a cavity for the circulation of jets and at least one first spraying nozzle for projecting at least one cleaning fluid towards at least one inner portion of the cavity. The method includes the step of projecting, using the first spraying nozzle, several pulses of cleaning fluid towards the inside of the cavity.
Claims14
A method for cleaning a print head, wherein the print head comprises:
- a cavity for the circulation of jets;
- at least one nozzle for producing at least one ink jet in said cavity and at least one first spraying nozzle, different from said at least one nozzle, for projecting at least one cleaning fluid towards at least one inner portion of the cavity,
- said method comprising the step of projecting, using said at least one first spraying nozzle, several pulses of cleaning fluid directly towards the inside of the cavity, downstream from said at least one nozzle for producing at least one ink jet.
A method for cleaning a print head, wherein the print head comprises:
- a cavity for the circulation of jets;
- at least one first spraying nozzle for projecting at least one cleaning fluid towards at least one inner portion of the cavity;
- and
- at least a second spraying nozzle, fixed or movable, which projects a cleaning fluid toward a different portion of the cavity than said at least one first spraying nozzle,
- said method comprising the step of projecting, using said at least one first spraying nozzle, several pulses of cleaning fluid towards the inside of the cavity.
A method for cleaning a print head, wherein the print head comprises:
- a cavity for the circulation of jets;
- at least one first spraying nozzle for projecting at least one cleaning fluid towards at least one inner portion of the cavity;
- and
- an accelerometer,
- said method comprising the step of projecting, using said at least one first spraying nozzle, several pulses of cleaning fluid towards the inside of the cavity,
- at least one of the following parameters being according to at least one piece of information relative to an orientation of the print head given by the accelerometer:
- a duration of each pulse of cleaning fluid and/or a time between two successive pulses of cleaning fluid;
- and/or an evacuation of cleaning fluid outside of the cavity, after the cleaning fluid is projected towards the inside of the cavity.
Dependencies are inferred from the claim text.