公开(公告)号：US20210229459A1

公开(公告)日：2021-07-29

申请号：US17050709

申请日：2020-03-19

Applicant: VIDEOJET TECHNOLOGIES INC.

Inventor： Gary Pfeffer

IPC: B41J2/325 ,  B41J2/305

Abstract: A printer comprising a printhead configured to selectively cause a mark to be created on a substrate, a stepper motor having an output shaft coupled to the printhead, the stepper motor being arranged to vary the position of the printhead, a sensor configured to generate a signal indicative of an angular position of the output shaft of the stepper motor, and a controller arranged to generate control signals for the stepper motor. Said control signals being at least partially based upon an output of said sensor and at least partially based upon a target position. Said control signals for the stepper motor are arranged to cause a magnetic field to be generated by windings of the stepper motor. A field angle being defined between an angular position of the output shaft of the stepper motor, and an orientation of the generated magnetic field. Said control signals comprise a first control signal configured to cause said field angle to have a predetermined value, and a second control signal configured to cause said magnetic field to have a predetermined magnitude, and said controller is configured to vary said first and second control signals based upon said target position and said output of said sensor.

公开(公告)号：US10953675B2

公开(公告)日：2021-03-23

申请号：US16472557

申请日：2017-12-22

Applicant: VIDEOJET TECHNOLOGIES INC.

Inventor： Martin McNestry ,  Gareth Walley

IPC: B41J2/325 ,  B41J25/312 ,  B41J2/355 ,  B41J25/308 ,  B41J25/316

Abstract: A printer comprising a printhead configured to selectively cause a mark to be created on a substrate provided adjacent to the printer, the printhead having a first configuration in which the printhead is spaced apart from the printing surface and a second configuration in which the printhead is configured to press the substrate against a printing surface during a printing operation. The printer further comprises a printhead drive assembly configured to cause movement of the printhead towards and away from the printing surface between the first and second configurations, the printhead drive assembly comprising a permanent magnet and an electromagnet. When the electromagnet is in a first condition, an attractive magnetic force is generated between the permanent magnet and the electromagnet, and when the electromagnet is in a second condition, a repulsive magnetic force is generated between the permanent magnet and the electromagnet, each of said attractive and repulsive magnetic forces being configured to one of urge the printhead away from and towards the printing surface. The printhead drive assembly is configured such that, when the printhead is in each of the first and second configurations, it is retained in that configuration by the printhead drive assembly when the electromagnet is in the first condition, the printhead being retained in one of the first and second configurations by said attractive magnetic force generated between the permanent magnet and the electromagnet.

公开(公告)号：US20200180309A1

公开(公告)日：2020-06-11

申请号：US16607909

申请日：2018-04-25

Applicant: Videojet Technologies Inc.

Inventor： Robert SMITH ,  Salhadin OMER

IPC: B41J2/085 ,  B41J2/175 ,  B41J2/09 ,  B41J2/185

Abstract: There is provided a charge electrode for charging ink droplets for continuous ink jet printing. The charge electrode has a generally cylindrical main body defining a generally cylindrical passage for the ink droplets, said passage extending along a travel axis that represents, in use, the position of an ink jet in ingress to the electrode and a direction of travel of the ink droplets once these have detached from the ink jet. The charge electrode comprises two distinct axially disposed regions: a first region for charging the droplets as required; and, a second region for screening the charged droplets from any electric fields which could undesirably affect the trajectory of the ink jet and/or the droplets. The second region may fully surround at least a portion of the travel axis. The invention therefore provides improved screening for the ink jet and/or the droplets. This may in turn enable better control of the charge applied to the charged droplets, and/or of their travel trajectory.

公开(公告)号：US10669118B2

公开(公告)日：2020-06-02

申请号：US14901560

申请日：2014-10-01

Applicant: VIDEOJET TECHNOLOGIES INC.

Inventor： Martin Mcnestry

IPC: B65H75/24 ,  B65C9/18

Abstract: A spool support, for supporting a windable material, comprises a main body, an actuator and a clamp portion. The actuator is movable relative to the main body between a first position and a second position. The clamp portion is pivotably connected to the main body. The actuator actuates the clamp portion such that the clamp portion pivots relative to the main body between a retracted position when the actuator is in the first position and a deployed position when the actuator is in the second position.

公开(公告)号：US10507947B2

公开(公告)日：2019-12-17

申请号：US15523112

申请日：2015-10-30

Applicant: VIDEOJET TECHNOLOGIES INC.

Inventor： Gary Pfeffer

IPC: B65C9/18 ,  B65C9/42

Abstract: A labelling machine comprises a supply spool support for supporting a supply spool comprising label stock; a take-up spool support adapted to take up a portion of the label stock; a motive device configured to propel the label stock along a web path from the supply spool support towards the take up spool support; a first arrangement configured to produce a first signal indicative of a speed at which label stock is removed from the supply spool by the motive device; a controller configured to receive the first signal and output a brake assembly control signal based upon the first signal; and a brake assembly configured to apply a braking force to the supply spool support based upon the brake assembly control signal, the braking force resisting rotation of the supply spool support. The controller is configured to output the brake assembly control signal based upon a target supply spool speed.

公开(公告)号：US20190151992A1

公开(公告)日：2019-05-23

申请号：US16315074

申请日：2017-07-05

Applicant: Videojet Technologies Inc.

Inventor： Christopher BAHNS ,  Faycal BENAYAD-CHERIF

IPC: B23K26/362 ,  G05B19/18 ,  B23K26/03 ,  B23K26/046 ,  B23K26/06 ,  B23K26/082 ,  B23K26/40 ,  B23K26/70

Abstract: The embodiments include a system, comprising: a scanhead with a marking laser having a marking field. The system includes a vision system having a camera embedded in the scanhead having a field of view (FOV) within the marking field and an autofocus module which uses pixel information in an in-focus region of interest (ROI) of a target surface of a part to obtain a Z-axis focus in a vertical dimension above a two-dimensional (2D) plane. The marking laser selectively marks with a laser beam the target surface in the marking field based on at least the Z-axis focus.

公开(公告)号：US10226937B2

公开(公告)日：2019-03-12

申请号：US15342647

申请日：2016-11-03

Applicant: Videojet Technologies, Inc.

Inventor： Matthew Tomlin ,  Carl Mann ,  Philip John Blowfield

IPC: B41J2/175

Abstract: A method for measuring the volume of liquid, such as ink or solvent, remaining in a container, such as a replacement cartridge for a continuous ink jet printer, uses a reservoir enclosing an internal space having a variable volume for storage. The reservoir is adapted to provide a reduction in the pressure of the internal space, the reduction substantially monotonically increasing in magnitude as liquid is drawn into the printer, such that the volume of liquid remaining may be calculated from knowledge of the minimum withdrawal pressure required to draw further liquid from the reservoir into the printer. Containers for use with the method have a liquid dispensing port adapted to allow liquid to be dispensed when a withdrawal pressure at the exterior of the port is less than the pressure of the internal space and adapted to prevent the ingress of air into the internal space of the reservoir as liquid is dispensed.

公开(公告)号：US20180217634A1

公开(公告)日：2018-08-02

申请号：US15748230

申请日：2016-07-21

Applicant: Videojet Technologies Inc.

Inventor： Steven John BUCKBY

IPC: G06F1/16 ,  G06F3/0481

Abstract: This application concerns an apparatus comprising a housing arranged to be positioned at any one of a plurality of rotational angles, a display mounted to the housing and a processor arranged to execute instructions stored in a memory. The instructions are arranged to cause a user interface to be displayed on the display, to receive an indication of a rotation amount and rotation direction from a rotation input, rotate at least one corner element about its centre point by the rotation amount in the rotation direction and if the rotation amount is greater than a first predetermined limit, move the at least one corner element to a different one of a plurality of corner portions of the display.

公开(公告)号：US09988545B2

公开(公告)日：2018-06-05

申请号：US15581329

申请日：2017-04-28

Applicant: VIDEOJET TECHNOLOGIES INC.

Inventor： Casey Robertson ,  Anthony Selmeczy ,  Linfang Zhu

IPC: C09D11/36 ,  C09D11/30 ,  C09D11/328 ,  C09D11/38 ,  C09D11/32 ,  B41J2/01 ,  C08K5/04 ,  C08K5/06 ,  C08K5/11

CPC classification number: C09D11/36 ,  B41J2/01 ,  C08K5/04 ,  C08K5/06 ,  C08K5/11 ,  C09D11/30 ,  C09D11/32 ,  C09D11/328 ,  C09D11/38

Abstract: A thermal ink jet ink composition includes one or more volatile organic solvents, wherein the one or more volatile organic solvents are selected from C1-C4 alcohols, C3-C6 ketones, C3-C6 esters, C4-C8 ethers, and mixtures thereof; one or more binder resins; and one or more dyes. The ink composition is suitable for use in a thermal ink jet printer and the ink composition has a slow rate of kogation such that it is capable of being printed at least 10 million drops per nozzle from the thermal ink jet printer before drop weight of the ink composition is reduced by more than 10%.

公开(公告)号：US09975326B2

公开(公告)日：2018-05-22

申请号：US15316368

申请日：2015-06-04

Applicant: VIDEOJET TECHNOLOGIES, INC.

Inventor： Robert Smith ,  Omer Salhadin

IPC: B41J2/035

CPC classification number: B41J2/035 ,  B41J2/175 ,  B41J2/185

Abstract: A continuous ink jet print head, including: a droplet generator (32, 32′, 32″) for generating ink droplets (64); a charging electrode (22, 22′, 22″) having a passageway (74, 74′, 74″) through which the ink droplets travel to receive a charge; a deflection electrode (60, 60′, 60″) for deflecting the charged ink droplets; a gutter (50, 50′, 50″, 50′″) having a gutter entrance (52, 52′, 52″, 52′″); wherein the passageway is aligned with the gutter entrance through which uncharged droplets enter; and a mounting deck (10, 10′, 10″) configured to secure the gutter entrance into a fixed, nonadjustable gutter entrance position (56, 56′, 56″, 56′″) and to secure the charging electrode into a fixed, nonadjustable charging electrode position (24, 24′, 24″) relative to the gutter entrance.