Hp Scitex Ltd.

Hewlett-packard Industrial Printing Ltd.

Hewlett-packard Development Company, L.P.

Alex Veis

Yuval Dim

Semion Birger

Yaron Dekel

Ran Vilk

Yubai Bi

Joaquim Brugue Garvi

Esteve Comas Cespedes

Ron Tuttnauer

Gilhad Ben-Bassat

Ronald Albert Askeland

Gregg A Lane

Raimon Castells De Monet

Jon A Crabtree

Eviatar Halevi

Alex Davidson

Yaron Dvori

Yochai Edlitz

Tamir Daya

Oren Levin

Eldad Manheim

Sharon Regev

Omer Gila

Albert Teishev

Napoleon J Leoni

Eytan Cohen

Tsuyoshi Yamashita

Marian Cofler

Alex Trubnikov

Fernanda Orlik

Chen Turkenitz

Maria Elizabeth Zapata

Shimi Nakash

Eyal Kotik

Lior Lifshitz

Adam Goren

Ronny Tuttnauer

Milena Nadgorny

Eitan Pinhasi

Alon Sarig

Jan Van Daele

Michael Ben Yishai

Amir Hesed

Itshak Bushmits

A method of drying print agent is disclosed. The method comprises blowing hot air onto an absorbent printable medium that bears water- and/or solvent-based print agent to reduce the viscosity of the print agent and to promote absorption of at least some water and/or solvent in the print agent by the printable medium; and, subsequent to the blowing of hot air, irradiating the printable medium with ultraviolet radiation to dry the unabsorbed portion of print agent on the printable medium. A printer ink drying apparatus and a print apparatus are also disclosed.

Print agent drying apparatus

In one example, a system to support print media through a print zone in a printer includes an endless support belt, a driver to circulate the support belt through the print zone, and an encoder unit under the print zone to measure movement of the support belt in the print zone.

Print zone encoder

A system to carry print media through a print zone in a printer. In one example, the system includes an endless conveyor belt in a loop, a driver operatively connected to the conveyor belt under the print zone to circulate the conveyor belt through the print zone, an encoder operatively connected to the driver under the print zone to measure movement of the conveyor belt in the print zone indirectly through the driver, and a controller programmed to control the driver based on measurements from the encoder.

Print zone driver for a printer conveyor belt

In an example, a media sheet conveyance system includes a first transport assembly, a plurality of subject transport assemblies, and a controller. The first transport assembly includes an endless first belt having a plurality of rows of holes, including a first and a second edge row separated by a distance 'x'. Each subject transport assembly includes an endless subject belt having a subject edge row of holes, with a distance to a nearest edge row of an adjacent transport assembly being less than or equal to the distance “x.” The controller is to, in order to convey a media sheet, control a first drive roller to circulate the first belt over a first vacuum element set, and control a subject drive roller to circulate a subject belt over a subject vacuum element.

Media sheet conveyance with transport assemblies

An example apparatus to produce a three-dimensional object comprises a controller, a build area configured to receive a layer of particulate material, a printhead, and an ultraviolet light emitting diode energy source. The controller is to cause the printhead to deposit a liquid which absorbs ultraviolet radiation onto the layer of particulate material. The controller is further to cause the ultraviolet light emitting diode energy source to irradiate the liquid, after the liquid has been deposited onto the layer of particulate material, thereby to heat the liquid and cause a portion of the particulate material to solidify.

Three-dimensional object production

In one example, a system to convey print media through a print zone in a printer includes an endless conveyor belt in a loop, a pair of drivers to circulate the conveyor belt through the print zone from opposite ends of the loop, an encoder to measure movement of the conveyor belt, and a controller programmed to control both drivers driving the conveyor belt based on measurements from the encoder.

Dual drive print media conveyor belt

A method is disclosed. The method may comprise forming an image on a surface by controlled electrostatic transfer of a fluid print agent comprising thermoplastic resin disposed in a carrier fluid. The method may also comprise heating the fluid print agent on the surface to remove the carrier fluid and to melt the thermoplastic resin and allowing the melted thermoplastic resin in continuous areas on the surface to fuse together to form an image from fused print agent. The method may further involve providing a printed substrate bearing the image formed from fused print agent. The method may further comprise irradiating the printed substrate with an ultraviolet narrowband source so as to cause heating of the fused print agent to melt the thermoplastic resin. A print system and a print apparatus are also disclosed.

Print treatment units

An example of an additive manufacturing system is disclosed. The example disclosed herein comprises a build material distributor, a preheating source, and a controller. The build material distributor is to form build material layers from an intended build material having a color. The preheating source is to emit energy at a wavelength related to the intended build material color so that at least a 40% of the energy is absorbed by the build material. The controller is to receive printing instructions to print a 3D object, wherein the printing instructions define an area to be fused in a build material layer. The controller is also to instruct the build material distributor to form the build material layer. The controller is further to control the preheating source to emit energy to preheat a zone comprising the area to be fused.

Preheat build materials with preheating sources

In an example of the disclosure, a print job is received. The print job includes an image to be printed upon a substrate utilizing printheads. The print job is analyzed to determine a set of imaged segments, a set of image-adjacent segments, and a set of remote segments. The print job is printed upon the substrate utilizing a first set of printheads. A cooling liquid is applied to the set of image-adjacent segments of the printed print job utilizing a second set of printheads downstream from the first set of printheads. The printed job is exposed to an array of controllable illumination elements. The array of illumination elements is controlled to apply a drying illumination to the imaged segments and the image-adjacent segments of the printed print job, without providing the drying illumination to the remote segments.

Printing and selective drying

In an example, apparatus includes a first radiation source to output radiation at a first waveband and a second radiation source to output radiation at a second waveband, which is different from the first waveband. The apparatus may receive a medium having marked thereon a first colorant and a second colorant and the first and second wavebands may be selected such that an energy absorbance efficiency of the first colorant is higher than that of the second colorant at the first waveband and an energy absorbance efficiency of the second colorant is higher than that of the first colorant at the second waveband.

Radiation sources for colorants

A drying assembly comprises a plurality of electromagnetic energy sources arranged to dry printing fluid deposited onto a surface of a substrate, by evaporation of a solvent fluid therefrom. The drying assembly further comprises a conveyor system configured to move the substrate in a conveying direction, and a focusing system configured to focus electromagnetic energy from the plurality of electromagnetic energy sources to form a non-uniform heating pattern on the surface of the substrate. The non-uniform heating pattern comprises a plurality of spatially separated higher and lower intensity regions distributed along the conveying direction.

Printing fluid drying assembly with non-uniform heating pattern, method and system

In an example, there is provided a method including: receiving, at a processor, data specifying the shape of a blank to form a folded article; and determining, using the processor, based on the received data, a suction array layout to hold the blank against a media support, wherein the suction array layout conforms to the shape of the blank.

Suction array layouts

In one example, a media support includes a continuous loop belt and multiple suction cups arranged along the outer perimeter of the belt. Each suction cup has a port aligned with a hole in the belt so that air may be evacuated from the suction cup when connected to a vacuum source.

Media support

In an example, a printer ink dryer unit comprises at least one ultraviolet light source to dry a printer ink layer by causing evaporation of a solvent fluid therefrom.

Printer ink dryer units

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Kadima, Israel

Alex Veis