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US 10,852,668 B2Granted
Printing liquids concentration
AssigneeHP Indigo B.V.
InventorsPeter Nedelin, Shai Lior, Mark Sandler
Life of this patent
Estimating the term…
Abstract
An example apparatus includes a conveyor. The apparatus also includes a developer unit. The developer unit is to concentrate printing liquid. The developer unit also is to deliver the printing liquid to the conveyor as a thick layer on the conveyor.
Claims18
A system comprising:
- a conveyor, wherein the conveyor is not a photoconductor;
- a developer unit to:
- internally concentrate printing liquid, and
- conduct the printing liquid to the conveyor;
- a squeegee unit to apply mechanical and electrical forces to the printing liquid on the conveyor to concentrate the printing liquid;
- and
- a wiper in contact with the conveyor, the wiper to remove the printing liquid from the conveyor.
4 more elements
A method comprising:
- concentrating printing liquid on a developer roller by creating an electrical potential difference between the developer roller and an electrode proximate to the developer roller;
- transferring the printing liquid from the developer roller to a conveyor after the concentrating on the developer roller;
- further concentrating the printing liquid on the conveyor;
- and
- removing the concentrated printing liquid from the conveyor at a normalized rate of at least five kilograms per hour.
2 more elements
An apparatus comprising:
- a conveyor;
- a developer unit to:
- internally concentrate printing liquid, wherein the developer unit is to receive the printing liquid at a non-volatile solid concentration of no more than 5%, and deliver the printing liquid to the conveyor as a thick layer on the conveyor;
- and
- a wiper in contact with the conveyor, the wiper to remove the printing liquid from the conveyor, wherein the removed printing liquid has a non-volatile solid concentration of at least 35%.
2 more elements
Dependencies are inferred from the claim text.