Printing liquids concentration
AssigneeHP Indigo B.V.
InventorsGiries Kadis, Marc Klein, Mark Sandler, Peter Nedelin, Marko Richter
Life of this patent
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Abstract
An example apparatus includes a conveyor. The apparatus also includes a first developer unit. The first developer unit is to concentrate first printing liquid. The first developer unit also is to deliver the first printing liquid to the conveyor. The apparatus also includes a second developer unit. The second developer unit is to concentrate second printing liquid. The second developer also is to deliver the second printing liquid to the conveyor to form a thick layer of printing liquid comprising the first and second printing liquid.
Claims17
A system comprising:
- a conveyor;
- a first developer unit to:
- concentrate first printing liquid, and
- deliver the first printing liquid to the conveyor as a first layer of printing liquid;
- a second developer unit to:
- concentrate second printing liquid, and
- deliver the second printing liquid to the conveyor as a second layer of printing liquid delivered onto the first layer of printing liquid delivered by the first developer unit;
- a wiper in contact with the conveyor, the wiper to remove the first and second layers of printing liquid from the conveyor;
- a squeegee unit situated between the first developer unit and the second developer unit along the conveyor, the squeegee unit to apply forces to the first layer of printing liquid on the conveyor to concentrate the first layer of printing liquid.
A method comprising:
- concentrating first printing liquid on a first developer roller;
- transferring the first printing liquid to a conveyor as a first layer of printing liquid;
- further concentrating the first printing liquid on the conveyor using a first squeegee unit, after the first printing liquid has been transferred to the conveyor and before the second printing liquid has been transferred to the conveyor;
- concentrating second printing liquid on a second developer roller, after the first printing liquid has been further concentrated using the first squeegee unit;
- transferring the second printing liquid to the conveyor as a second layer of printing liquid delivered onto the first layer of printing liquid, wherein the second printing liquid mixes with the first printing liquid upon transfer of the of the second printing liquid on top of the first printing liquid, resulting in mixed printing liquid;
- and
- removing the mixed printing liquid from the conveyor.
An apparatus comprising:
- a conveyor;
- a first developer unit to:
- concentrate first printing liquid, and
- deliver the first printing liquid to the conveyor as a first layer of printing liquid;
- a second developer unit to:
- concentrate second printing liquid, and
- deliver the second printing liquid to the conveyor as a second layer of printing liquid delivered onto the first printing liquid to form a thick layer of printing liquid comprising the first and second printing liquids;
- and
- a squeegee unit between the first developer unit and the second developer unit to further concentrate the first printing liquid on the conveyor.
Dependencies are inferred from the claim text.