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US 10,850,545 B2Granted
Inkjet printer cartridge
AssigneeHewlett-Packard Development Company, L.P.
InventorsKai-Kong Iu, Howard Doumaux
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Abstract
Herein is described an inkjet printer cartridge, comprising: a printhead having a flow path; a reservoir in fluid communication with the printhead flow path, the reservoir containing an inkjet ink composition; and a shipping fluid present in the printhead flow path, wherein the shipping fluid comprises: a fadable colorant; a carbohydrate; and a liquid vehicle. A method of performing a nozzle check for an inkjet printhead is also described.
Claims12
An inkjet printer cartridge, comprising:
- a printhead having a flow path;
- a reservoir in fluid communication with the printhead flow path, the reservoir containing an inkjet ink composition;
- and
- a shipping fluid present in the printhead flow path, wherein the shipping fluid comprises:
- a fadable colorant present in an amount ranging from at least about 0.01 wt % to about 0.5 wt %, based on a total weight of the shipping fluid;
- a carbohydrate;
- and
- a liquid vehicle;
- wherein the shipping fluid in the printhead flow path has a dynamic viscosity greater than the dynamic viscosity of the inkjet ink composition in the reservoir.
6 more elements
Dependencies are inferred from the claim text.