公开(公告)号：WO2019057283A1

公开(公告)日：2019-03-28

申请号：PCT/EP2017/073912

申请日：2017-09-21

Applicant: HP INDIGO B.V.

Inventor： BERGER, Shachar ,  FROOM, Alon ,  SHANUN, Sagie ,  LEVINTANT, Oran

IPC: G03G15/10

CPC classification number: G03G15/104

Abstract: A print agent application assembly includes a print agent transfer roller to receive print agent and transfer a portion of the print agent to a photoconductive surface. The assembly may also include a print agent regulator roller to regulate a film thickness of print agent on the print agent transfer roller. The assembly may also include a mechanism to generate an oscillating force to be applied to print agent on the print agent transfer roller. A method and a print apparatus are also disclosed.

公开(公告)号：WO2019057277A1

公开(公告)日：2019-03-28

申请号：PCT/EP2017/073822

申请日：2017-09-20

Applicant: HP INDIGO B.V.

Inventor： LIBSTER, Dima ,  PLOSHNIK, Elina ,  INOTAEV, Sergey ,  HABIBI, Gabi ,  SHUNARY, Dafna

IPC: G03G15/16

Abstract: Herein is disclosed an intermediate transfer member for liquid electrophotographic printing. The intermediate transfer member comprises a silicone release layer bonded to a layer comprising a thermoplastic polyester polyurethane. A method of producing an intermediate transfer member is also described.

公开(公告)号：WO2019020203A1

公开(公告)日：2019-01-31

申请号：PCT/EP2017/069248

申请日：2017-07-28

Applicant: HP INDIGO B.V.

Inventor： KOLODITSKY, Yechiam ,  MEIRI, Ilan ,  MENASHE, Avihay

IPC: B65H5/08 ,  B65H29/02

Abstract: A printing system comprises a print station and print medium transport system. The print medium transport system comprises a track and a transport apparatus engaged with the track. The track defines a transport path past the print station, the transport path has a print medium entry point and a print medium exit point. The transport apparatus comprises: a drive for moving the transport apparatus along the track; and a gripping system. The gripping system can be moved between a first position in which a sheet of print medium is gripped and a second position in which the sheet of print medium is released. In use, the gripping system is configured to be in the first position when the transport apparatus is in motion along the track from the print medium entry point to the print medium exit point.

公开(公告)号：WO2018233845A1

公开(公告)日：2018-12-27

申请号：PCT/EP2017/065558

申请日：2017-06-23

Applicant: HP INDIGO B.V.

Inventor： AMBAR, Oron ,  BREEN, Craig ,  YUNGER, Yuval ,  VLADOMIRSKI, Haim

IPC: G03G15/04 ,  G03G15/10 ,  G03G15/043 ,  G03G15/00

Abstract: Certain examples described herein relate to an optical controller (140) for an exposure unit (115, 215) of a printer. In certain examples, memory (150) stores a plurality of data structures each comprising adjustment factors useable to adjust a plurality of optical elements (216) of the exposure unit. Different data structures correspond to different gray coverages in an image generated by the printer. In certain examples, a processor (160) determines gray levels for different image regions in input image data. In certain cases, the processor links the determined gray levels to corresponding data structures within the plurality of data structures to obtain adjustment factors for the different image regions. In certain cases, the processor adjusts the optical elements for each image region using the corresponding obtained adjustment factors to enable the generation of an exposed image using the exposure unit based on the input image data.

公开(公告)号：WO2018228691A1

公开(公告)日：2018-12-20

申请号：PCT/EP2017/064643

申请日：2017-06-14

Applicant: HP INDIGO B.V.

Inventor： INBAL, Noam ,  BLECHER, Ella ,  BLAKHMAN, Anna

IPC: E05D15/58

Abstract: In one example, a door apparatus is described, having a door leaf (102) part including a first door leaf portion (104a) and a second door leaf portion(104b), and having a pivot mechanism (106) defining a pivot axis connected to the first door leaf portion. The second door leaf portion is slidably movable with respect to the first door leaf portion between a first position, in which the door leaf part extends a first distance from the pivot axis, and a second position in which the door leaf part extends a second distance from the pivot axis, the first distance being larger than the second distance, and the pivot mechanism is to enable the door leaf part to pivot about the pivot axis when the second door leaf portion is in the second position.

公开(公告)号：WO2018192651A1

公开(公告)日：2018-10-25

申请号：PCT/EP2017/059299

申请日：2017-04-19

Applicant: HP INDIGO B.V.

Inventor： TZOMIK, Inna ,  SKVIRSKY, Daniel ,  KOGAN, Faina ,  STOLOV, Alexander

IPC: C09D11/101 ,  G03G9/00

Abstract: Herein is described a method of providing a printed label. The method comprises: providing a printed label substrate having disposed thereon an electrostatically printed ink; applying a radiation curable overcoat composition to the printed ink, wherein the radiation curable overcoat composition comprises: radiation curable monomers and/or oligomers; a photoinitiator; and an organosilane having at least one hydrolysable group. Printed labels and an ink and overcoat set are also described herein.

公开(公告)号：WO2018157928A1

公开(公告)日：2018-09-07

申请号：PCT/EP2017/054814

申请日：2017-03-01

Applicant: HP INDIGO B.V.

Inventor： NEDELIN, Peter ,  SANDLER, Mark ,  LIOR, Shai

IPC: G03G15/11 ,  G03G15/16

Abstract: In one example of the disclosure, a first transfer of ink is made from a photoconductor to a blanket in contact with the photoconductor. The blanket is to cycle along a path. The first transfer occurs at a first arc of the blanket path. A second transfer of the ink is made from the blanket to a media in contact with the blanket. The second transfer occurs at a second arc of the blanket path. A heat source located adjacent to a third arc of the blanket path is utilized to heat an external surface of the blanket. The heating is to occur following the second transfer of the ink.

公开(公告)号：WO2018149486A1

公开(公告)日：2018-08-23

申请号：PCT/EP2017/053314

申请日：2017-02-14

Applicant: HP INDIGO B.V.

Inventor： KENT, Itzik ,  ASSENHEIMER, Michel ,  LEVY, Uri ,  LEVY, Michael ,  HAIM, Liran Fanny ,  BOURLA-SADEH, Maya

IPC: G03G15/00

Abstract: Certain examples described herein relate to splice detection. In certain cases, a splice is detected in a web being conveyed towards a transfer member of the printing system. In certain cases, a print frame is identified from a sequence of pending print frames using successive repeat lengths of the sequence and a distance of the splice from the transfer member. The identified print frame is to be transferred from the transfer member across the splice. In certain cases, writing of the identified print frame onto a photo-imaging plate of the printing system is deferred. In certain examples, the web is disengaged from the transfer member following transfer of an image of a print frame preceding the identified print frame. The web is re-engaged with the transfer member so as to transfer an image of the identified print frame to the web from the transfer member after the splice is conveyed beyond the transfer member.

公开(公告)号：WO2018145773A1

公开(公告)日：2018-08-16

申请号：PCT/EP2017/053149

申请日：2017-02-13

Applicant: HP INDIGO B.V.

Inventor： HAIK, Oren ,  FRANK, Tal ,  BEN-SHOSHAN, Yotam

IPC: H04N1/52 ,  H04N1/405

Abstract: In an example, a method includes determining, using a processor, a set of halftone screens each comprising tiles spanning a plurality of cells, wherein at least one screen is a non-orthogonal screen and the cells comprise parallelograms being defined by a first vector having a first length and second vector having a second length. A first and a second fundamental frequency may be determined for each of the screens using a projection of the first and of the second vector into each axis of a print apparatus reference frame, the first length and the second length. Using the first and second fundamental frequencies, it may be determined which screens are associated with moiré effects below a threshold.

公开(公告)号：WO2018141373A1

公开(公告)日：2018-08-09

申请号：PCT/EP2017/052085

申请日：2017-02-01

Applicant: HP INDIGO B.V.

Inventor： RON, Hannoch ,  KOKOTOV, Michael ,  HERSHMAN, Yaron ,  MAOR, Shani

IPC: G03G7/00 ,  G03G9/12 ,  G03G9/13 ,  G03G9/135 ,  G03G9/125

Abstract: Described herein is a method for priming a polymeric print substrate for subsequently receiving a liquid electrophotographic (LEP) ink in which a surface of a polymeric print substrate is coated with a first primer using an analogue printing technique and a second primer is digitally printed to the surface of the polymeric print substrate coated with the first primer.