Hp Indigo B.v.

Hewlett-packard Development Company, L.P.

Yavin Atzmon

Yaron Grinwald

Inna Tzomik

Oren Wilde

Peter Nedelin

Shmuel Borenstain

Doron Schlumm

Noam Shaham

Gregory Katz

Regina Guslitzer

Lior Katz

Vladislav Kaploun

Moshe Peles

Vadim Genkin

Roy Har-Tsvi

David Meshulam

Ariel Hagege

Ziv GiLAN

In one example of the disclosure, a substantially transparent substrate is provided at a printer. A primer layer is applied upon a first surface of the substrate. A security ink layer that includes security information is applied upon the primer layer. An opaque background ink layer is applied upon the security ink layer. A corona treatment is applied to a second surface, located on an opposite side of the substrate relative to the first surface. A release ink layer is applied upon the corona-treated second surface. An opaque cover image ink layer is applied upon the release ink layer.

Scratch-off structure production

In an example, a first wiper blade is to contact the photoconductive surface and to wipe at least some of particles and fluid from the photoconductive surface and wherein a second wiper blade is to contact the photoconductive surface and to wipe at least some of the particles and fluid that have passed the first wiper blade, from the photoconductive surface. The first wiper blade includes at least one perforation forming a passage through the wiper blade to transmit part of the particles and fluid during wiping.

System for wiping a photoconductive surface

Example implementations provide a method of processing data associated with printing a plurality of separations; the method comprising creating, from the data associated with the plurality of separations, complementary separation layer data associated with the complement of data relating to an opaque separation of the plurality of separations.

Printing devices

Apparatus for maintenance of ink concentration stability in a reservoir () of a solid ink add printing device () over the course of a printing operation, comprises: a look-ahead unit () which looks at incoming printing instruction data () to determine pending ink usage, and a dynamic feed mechanism control unit () to dynamically control the feeding mechanism to modify feeding of the ink particles based on the determined pending ink usage.

Stabilization of ink concentration in a solid ink add system

A system for recycling a liquid in a printer comprises a first reservoir configured for collecting possibly polluted liquid to be recycled from the printer, a filtration system configured for purifying the liquid received from the first reservoir, and a second reservoir configured for collecting the liquid from the filtration system, wherein overflow from the second reservoir is directed to the first reservoir.

System and method for recycling cleaning liquid in a printer

A member for controlling foam in a material reservoir includes a body, a concave space in the body, and wings extending from the body in the concave space. A method of controlling foam in an ink reservoir of a printing system includes rotating a foam control member above ink in the reservoir to dissipate accumulated foam, where the member includes a concave space open toward the ink and wings extending in the concave space.

System and method for controlling foam in a printing system

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Nes Ziona, Israel

Yavin Atzmon