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US 7,396,109 B2Granted
Inkjet printing system with high drop-weight yellow
AssigneeHewlett-Packard Development Company, L.P.
InventorKenneth J. Courian
Life of this patent
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Abstract
Disclosed are printing systems and printhead assemblies in which yellow print nozzles are paired on a die with black print nozzles, with cyan and magenta print nozzles on a separate die. The pairing of yellow and black nozzles reduces constraints imposed by the printhead architecture and manufacturing processes.
Claims15
A printing system, comprising:
- a first printhead die including print nozzles for multiple color inks;
- a second printhead die including print nozzles for a low drop visibility ink and black ink;
- and wherein a drop weight of the print nozzles of the second printhead die is larger than a drop weight of the print nozzles of the first printhead die.
A printing system, comprising:
- a first printhead die including print nozzles for cyan ink and magenta ink;
- a second printhead die including print nozzles for a low drop visibility ink and black ink;
- and wherein a drop weight of the print nozzles of the second printhead die is larger than a drop weight of the print nozzles of the first printhead die.
A printhead assembly for an inkjet printing system, comprising:
- a first printhead die including print nozzles for cyan ink and magenta ink;
- a second printhead die including print nozzles for yellow ink and black ink;
- and wherein a drop weight of the print nozzles of the second printhead die is larger than a drop weight of the print nozzles of the first printhead die.
Dependencies are inferred from the claim text.