Landa Corporation Ltd.

Hewlett-packard Development Company, L.p.

Hewlett-packard Indigo B.v.

Ayal Galili

Benzion Landa

Sagi Abramovich

Galia Golodetz

Moshe Levanon

Helena Chechik

Tatiana Kurtser

Jose Kuperwasser

Omer Ashkenazi

Dan Avital

Uriel Pomerantz

On Mero

Ittai Wiener

Michael Mehanik

Elad Fodor

Alex Feygelman

Israel Lasker

Aron Shmaiser

Asaf Turm

Dima Vais

Maxim Bramnik

Assaf Barel

Dudi Gutman

Embodiments of the invention relate to a method of indirect printing with an aqueous ink. Related apparatus, systems and treatment formulations are disclosed herein. Some embodiments relate to an aqueous treatment formulation for use with an intermediate transfer member of a printing system. In some embodiments, the system comprises a treatment station disposed downstream of the impression station and upstream of the image forming station for forming a uniform thin layer of a liquid treatment formulation onto a surface of an intermediate transfer member (ITM) at a lower run thereof.

Digital printing process

Embodiments of the invention relate to a method of indirect printing with an aqueous ink. In some embodiments, an intermediate transfer member (ITM) comprising a silicone-based release layer surface is employed. For example, the release layer surface satisfies at least one of the following properties: (i) a receding contact angle of a drop of distilled water deposited on the silicone-based release layer surface is at most 60°; and (ii) a 10-second dynamic contact angle (DCA) of a drop of distilled water deposited on the silicone-based release layer surface is at most 108°. Related apparatus, systems and treatment formulations are disclosed herein.

Digital printing process and system

Embodiments of the invention relate to a method of indirect printing with an aqueous ink. In some embodiments, an intermediate transfer member (ITM) comprising a silicone-based release layer surface is employed. For example, the release layer surface satisfies at least one of the following properties: (i) a receding contact angle of a drop of distilled water deposited on the silicone-based release layer surface is at most 60&#xb0;; and (ii) a 10-second dynamic contact angle (DCA) of a drop of distilled water deposited on the silicone-based release layer surface is at most 108&#xb0;. Related apparatus, systems and treatment formulations are disclosed herein.

An aqueous treatment composition for ITM (Intermediate transfer member) of a printing system and a method of printing comprising the step of applying said treatment composition to the surface of an ITM, wherein said treatment composition comprising: at least 3% wt quaternary ammonium salt, at least 1% wt water soluble polymer, and at least 65% wt water. Also disclosed, a printing system comprising a an ITM and treatment station for forming a thin layer of liquid treatment formulation on the ITM surface.

Image forming apparatus and methods are disclosed which include an intermediate transfer member to transfer images to media, an impression roller including a gripping device to receive the media, and a determination module to determine the length of the media held by the at least one gripper unit based on respective detections by first and second set of sensors.

Image forming apparatuses and methods thereof

A method of error correction in a printing system includes engaging a sheet of print media with a perfector arm and detecting a relative position of the perfecter arm with respect to the sheet of print media when the perfecter arm has engaged the sheet of print media, the detecting being performed using a homing sensor that is configured to sense the perfecter arm while the perfecter arm is engaged with the sheet of print media. The relative position of the perfecter arm with respect to the sheet of print media is compared with an expected relative position and any difference between the relative position and expected relative position is compensated for when feeding the sheet of print media with the perfector arm to a print engine.

Error correction in printing systems

A printing and peeling arrangement comprises an impression drum for supporting a print medium during application of a printing image thereto, and one or more rotating vacuum fingers for applying vacuum via suction caps to the print medium to peel the print medium from the impression drum after printing. The vacuum finger is mounted for radial motion towards the impression drum and thereby avoids impact damage onto the print medium from the edges of the suction caps that results from a purely rotational approach to the drum.

Rotating vacuum fingers for removal of printing media from an impression drum

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Beit Elazari, Israel

Ayal Galili