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US 11,305,542 B2Granted
Print head servicing
AssigneeHewlett-Packard Development Company, L.P.
InventorsLi Qian, Francisco Guerrero Carvajal
Life of this patent
Estimating the term…
Abstract
A method comprising: soaking a portion of a web in a printing device with printing liquid from a first print head (110) of the printing device; and wiping at least one nozzle of a second print head (120) in the printing device with the soaked portion of the web. The method provides a servicing method for print heads in the printing device.
Claims15
A method comprising:
- soaking a portion of a web in a printing device with printing liquid from a first print head of the printing device;
- and
- wiping at least one nozzle of a second print head in the printing device with the soaked portion of the web.
Apparatus for a printing device comprising:
- a first print head comprising a first set of nozzles;
- a second print head comprising a second set of nozzles;
- and
- a controller to wet a region of a web in printing liquid using the first set of nozzles and to subsequently position the second print head with respect to the web so as to wet the second set of nozzles with the wetted region of the web.
1 more element
A non-transitory machine-readable storage medium encoded with instructions executable by a processor, the machine-readable storage medium comprising:
- instructions to control at least one nozzle of a first print head in a printing device to soak a portion of a web with printing liquid;
- and
- instructions to position a second print head in the printing device with respect to the web such that at least one nozzle of the second print head is soaked by the soaked portion of the web.
Dependencies are inferred from the claim text.