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US 2018/0009221 A1Published application
Sequencing printers
AssigneeHewlett-Packard Development Company, L.P.
InventorGuan-Kwee Goh
Life of this patent
Estimating the term…
Abstract
In some examples, a controller of a printbar or a printhead copies firing instructions assigned, over a first network, to a plurality of shift registers, to a plurality of parallel registers and providing, over a second network, a primitive sequence including a respective firing order of each of a plurality of primitives included in the primitive sequence to the parallel registers.
Claims20
A printbar comprising:
- a printhead;
- and
- a controller to control the printhead having a plurality of nozzles, the controller to:
- copy firing instructions assigned over a first network to a plurality of shift registers, to a plurality of parallel registers that correspond to the plurality of shift registers;
- select a primitive sequence including a respective firing order of a plurality of primitives included in the primitive sequence;
- provide the primitive sequence, over a second network, to the parallel registers;
- associate the plurality of primitives with respective subgroups of the plurality of parallel registers, wherein a firing instruction of each of the parallel registers is associated with a primitive of the plurality of primitives;
- and
- select a firing instruction of a parallel register included in a subgroup of the parallel registers associated with a first primitive in the primitive sequence to be printed.
6 more elements
A printhead comprising:
- nozzles to dispense fluid;
- and
- a controller to:
- assign firing instructions included in an address sequence, over a first network, to a plurality of shift registers;
- copy the assigned firing instructions to a plurality of parallel registers, wherein each shift register of the plurality of shift registers has a corresponding parallel register of the plurality of parallel registers;
- provide, over a second network, a primitive sequence including a firing order of a plurality of primitives to the parallel registers;
- associate the plurality of primitives with respective subgroups of the plurality of parallel registers;
- provide a plurality of firing instructions of a respective subgroup of the parallel registers associated with a first primitive in the primitive sequence to the nozzles to be printed.
5 more elements
A method of operating a printbar, comprising:
- assigning, by a controller of the printbar, firing instructions included in an address sequence, over a first network, to shift registers;
- copying, by the controller, the assigned firing instructions to parallel registers that correspond to the shift registers;
- providing, over a second network, a primitive sequence including a respective firing order of a plurality of primitives to the parallel registers;
- and
- associating the plurality of primitives with respective subgroups of the parallel registers.
2 more elements
Dependencies are inferred from the claim text.