公开(公告)号：US20240009992A1

公开(公告)日：2024-01-11

申请号：US18474922

申请日：2023-09-26

Applicant: MACARBOX S.L.U.

Inventor： Antonio IZAGUIRRE

IPC: B41F31/02 ,  B41F31/04 ,  B41F5/24 ,  B41F31/20 ,  B05C1/08

CPC classification number: B41F31/027 ,  B41F31/04 ,  B41F5/24 ,  B41F31/20 ,  B05C1/0813 ,  B41P2231/20 ,  B05C1/083 ,  B05C1/0834 ,  B05C1/0817

Abstract: A fluid distribution device, for applying a fluid onto a transfer roller (2), comprises an elongated chamber (10), at least one inlet (31) for letting a fluid into the chamber (10), a longitudinal opening extending in the axial direction and adapted to face a transfer roller (2) so as to allow fluid to exit the chamber and contact the transfer roller, and at least one wiper blade (11) extending along at least a portion of the longitudinal opening. The chamber comprises, at each of the two axial ends of the chamber, a wall (15) separating the chamber (10) from a cavity (16), wherein the wall (15) has a wall surface (15A) arranged to face the transfer roller (2) when the device is in use, the wall (15) being dimensioned so that the wall surface (15A) will be distanced from the transfer roller when the device is in use, so as to allow fluid to be present in a gap (20) between the wall surface (15A) and the transfer roller.

公开(公告)号：US20220379623A1

公开(公告)日：2022-12-01

申请号：US17773532

申请日：2020-04-17

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Zachary T. McCourt ,  Patrick V. Boyd ,  David M. Hagen ,  James A. Dewey

IPC: B41J2/175 ,  B41F31/02

Abstract: In one example in accordance with the present disclosure, a printing fluid container for a printing system is described. The printing fluid container includes a container body for holding printing fluid, a collar connected to the container body, and a cap removably engaging the collar. The collar has a plurality of collar teeth extending peripherally around the collar. The cap has a plurality of cap teeth extending peripherally around the cap. The cap teeth are configured for interfitment with the collar teeth such that rotation of the cap about the longitudinal axis in a first rotational direction effects cam-actuated removal of the cap from the collar.

公开(公告)号：US11446922B2

公开(公告)日：2022-09-20

申请号：US16648176

申请日：2018-09-21

Applicant: BOBST FIRENZE S.R.L.

Inventor： Federico D'Annunzio

IPC: B41F33/00 ,  B41F9/06 ,  B41F31/02

Abstract: The present invention concerns an inking for a flexographic or a rotogravure press. The inking system uses a very small amount of ink coupled with an ink source made of two tanks with two different inks. Thanks to feedback given by measuring the output directly on the printed support, the system mixes the ink in the optimal proportions to ensure an optimal printing quality at any time. It can compensate any effect due to environmental changes like the humidity or the temperature. This system, coupled with a seven colours press allows for the replacement of spot colours in most cases thereby saving times and costs.

公开(公告)号：US11370216B1

公开(公告)日：2022-06-28

申请号：US17161879

申请日：2021-01-29

Applicant: Xerox Corporation

Inventor： Douglas K. Herrmann ,  Chu-Heng Liu ,  Seemit Praharaj ,  Jason M. Lefevre ,  Paul J. McConville

IPC: B41F7/24 ,  G01B11/02 ,  B41F31/02

Abstract: An apparatus and method for measuring the thickness of fountain solution (FS) in a Digital Architecture for Lithographic Ink (DALI) printing system by transferring the FS to an optical roller with the properties of a lens and measuring the resulting effect on the refraction of an image captured through the lens. The optical roller may comprise a clear or glass cylinder forming a Fresnel lens cylinder having an engineered surface of known surface roughness and wherein the roller is placed adjacent the image member blanket. A heat source is used to evaporate the FS from the blanket for transfer to the optical roller where the FS wets the roller surface to different degrees based on the FS thickness relative to Fresnel ridge depth. Changes to the optical refraction through the lens varies with the FS thickness. An image sensor (e.g., a CCD camera or image analysis system) evaluates the image through the optical roller for FS thickness determination.

公开(公告)号：US20210402754A1

公开(公告)日：2021-12-30

申请号：US16913302

申请日：2020-06-26

Applicant: Xerox Corporation

Inventor： Joseph C. SHEFLIN ,  Jack T. LESTRANGE ,  Anthony S. CONDELLO ,  Palghat S. RAMESH ,  Brian M. BALTHASAR

IPC: B41F31/02 ,  B41F31/13

Abstract: Examples of the preferred embodiments use printed content (e.g., halftones, difference in grayscale or darkness) to determine thickness of fountain solution applied by a fountain solution applicator on an imaging member surface and/or determine image forming device real-time image forming modifications for subsequent printings. For example, in real-time during the printing of a print job, a sensor may measure halftones or grayscale differences between printed content and non-printed content of a current printing on print substrate. Based on this measurement of printed content output from the image forming device, the image forming device may adjust image forming (e.g., fountain solution deposition flow rate, imaging member rotation speed) to reach or maintain a preferred fountain solution thickness on the imaging member surface for subsequent (e.g., next) printings of the print job.

公开(公告)号：US10946683B2

公开(公告)日：2021-03-16

申请号：US16146124

申请日：2018-09-28

Applicant: The Government of the United States of America, as represented by the Secretary of Homeland Security

Inventor： Joel Zlotnick ,  Troy Eberhardt ,  Jordan Brough

IPC: B41M3/14 ,  B41M3/00 ,  B42D25/29 ,  B42D25/30 ,  B44F1/10 ,  B41F31/02 ,  B41F31/18 ,  B41F11/02

Abstract: This application relates generally systems and methods for interrupting counterfeiting workflows, and more specifically to methods for adequately concealing aspects of printer configuration, such as number of plates used to print a document or a setup of inks and split fountains. It is therefore possible to obscure the individual plate images and application of ink to those plate images, thereby impeding accurate redrawing of security artwork.

公开(公告)号：US20210031506A1

公开(公告)日：2021-02-04

申请号：US17045743

申请日：2019-04-26

Applicant: Bobst Lyon

Inventor： Rene BAZIN ,  Philippe FLEURY ,  Julien MATTRAND

IPC: B41F31/02 ,  B41F31/04

Abstract: A device (10) for fastening a doctor blade (3) to a doctor blade (1) chamber body (2) comprising: at least one clamping flange (11) configured to press the doctor blade (3) onto the doctor blade (1) chamber body (2), at least a first fastener (20), and at least one second fastener (30), wherein the first fastener (20) comprises at least a first retaining section (21) having an upper end (21a) and a lower end (21b), a second section (22) different from the first retaining section (21), and wherein the second fastener (30) comprises at least a first portion (31) having at least one retaining element (34a), a second portion (32) having at least one retaining element (34b), an intermediate portion (33) devoid of retaining element and arranged between the first portion (31) and the second portion (32).

公开(公告)号：US10737483B2

公开(公告)日：2020-08-11

申请号：US15898721

申请日：2018-02-19

Applicant: Xerox Corporation ,  Palo Alto Research Center Incorporated

Inventor： Jack T. Lestrange ,  Gregory B. Anderson ,  Peter J. Knausdorf ,  Joanne L. Lee

IPC: B41F13/193 ,  B41F31/04 ,  B41F31/08 ,  B41F31/20 ,  B41F7/04 ,  B41F7/20 ,  B41F31/02 ,  B41F31/18 ,  B41F31/06 ,  B41F9/06

Abstract: In a digital inking system having an anilox member that carries a patterned metered layer of ink to a digital imaging member, and a doctor blade that removes excess ink from the surface of the anilox member resulting in the patterned metered layer, an overfill form roller in rolling contact with the anilox member adds an overcoat layer of ink on the patterned metered layer for transfer of both layers of ink to the digital imaging member. The overcoat layer of ink uniformly covers all regions of the anilox member and the mattered metered layer of ink, including lands of the anilox cell walls to make the combined layers of ink pattern-free.

公开(公告)号：US20200070497A1

公开(公告)日：2020-03-05

申请号：US16201987

申请日：2018-11-27

Applicant: HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD. ,  HON HAI PRECISION INDUSTRY CO., LTD.

Inventor： KAO-HUNG LIN

IPC: B41F31/02

Abstract: A refillable ink box proofed against the formation of airlocks during filling includes an ink storage chamber, a seat, and an insertion tube. The box includes a bottom plate, and first and second side walls. The bottom plate and first and second side walls form the ink storage chamber. The seat protrudes to the exterior and carries insertion tube, ink outlet, and air guiding port. The insertion tube defines the ink inlet and also an air vent. The ink inlet communicates with the ink outlet port, the ink outlet communicates with the ink storage chamber. The air guiding port equalizes gas pressure with outside atmosphere and is positioned above the ink outlet.

公开(公告)号：US20200032906A1

公开(公告)日：2020-01-30

申请号：US16070141

申请日：2017-01-13

Applicant: Windmöller & Hölscher KG

Inventor： Alexander Elbers-Schrichten ,  Jörg Prigge ,  Andreas Ihme ,  Thomas Benke

IPC: F16J15/16 ,  B41F31/02 ,  F16J15/32

Abstract: The invention relates to a sealing element for an ink chamber of a rotary printing press, wherein the sealing element has a sealing surface that rests against a roller body during operation of the rotary printing press. In order to reduce wear on the sealing element, the sealing surface has at least one flow outlet opening, at which an overpressure of a fluid may be built up during operation of the rotary printing press, in such a way that the fluid between the sealing surface and roller body forms a sealing flow film.