Videojet Technologies Inc.

Domino Printing Sciences Plc

Willett International Limited

Other

Domino Printing Sciences Plc of Bar Hill

Willet International Limited

Ammar Lecheheb

Matthew Brian Tomlin

Jerzy Marcin Zaba

Ian M Fost

David Andrew Horsnell

Oliver Prime

Trevor Lye

Christopher Michael Bates

Michael John Fox

James J Doyle

Peter Kassner

Robert Smith

Salhadin Omer

Michael Stamp

Philip John Blowfield

Danny Charles Palmer

Barry John Few

Colin Edward Chamberlain

Richard F Mitchell

Richard England

Kim Smith

Ray Rijing Yu

Michael James Fox

Michael Jeffrey Stamp

Oliver John Prime

Ian Fost

David Andrew Hornsnell

An ink supply system for an ink jet printer, particularly a continuous ink jet printer, has a manifold assembly of two parts that are brought together at interfacing surfaces. At least one of the surfaces has a plurality of ink flow channels for conveying ink around an ink circuit between components. The other of the interfacing surfaces is configured to close and seal the channels. A plurality of ports is provided in fluid communication with the channels, the circuit components being connectable to the ports. The manifold assembly provides for a compact and neat arrangement free of many tubes and pipes. The lower number of connections significantly reduces the risk of leakage.

Ink supply system

Ink cartridge

A method of driving an electromechanical converter of a print head of a continuous inkjet printer, wherein the electromechanical converter is arranged to break up a continuous stream of ink into a plurality of drops. The method includes determining a modulation voltage to drive the electromechanical converter, at least a property of the modulation voltage being controlled to take into account movement of a break up point of the continuous stream of ink, and to ensure that in a characteristic of modulation voltage versus a property at least indicative of a break up point of the continuous stream of ink, the characteristic has a predetermined gradient, or a gradient related to this predetermined gradient; and driving the electromechanical converter at the determined modulation voltage.

Electromechanical converter for ink jet printing

A core module for an ink jet printer includes a housing and a connection manifold disposed on the housing and including a plurality of ports providing fluid communication into and out of the module. A plurality of components is disposed within the housing, including a filter module, an ink reservoir, and an ink circuit. The filter module includes a fluid filter disposed in a filter housing. The filter housing has an inlet and an outlet. The ink circuit is in fluid communication with the components and the ports, and includes fluid paths for conveying ink between the components. The filter module is connected to the connection manifold such that the filter housing inlet and outlet are each in fluid communication with one of the plurality of ports on the manifold.

Ink jet module

A print head assembly includes a print head and a print head cover disposed around the print head. The print head cover includes a face and a print opening disposed in the face. The print opening disposed adjacent an ejection point of the print head. A perforated area is disposed on the face.

Print head

A solenoid valve making use of certain materials which is capable of operation at high frequencies and which can be made as a compact unit. The plunger () is made from a material having a saturation flux density greater than 1.4 Tesla preferably more than 1.6 Tesla, a coercivity at less than 0.25 ampere per centimeter and a relative magnetic permeability in excess of 10.000; and the nozzle bore leading from the valve head chamber () to the nozzle orifice () has a length to diameter ratio of less than 8:1 preferably between 2:1 to 4:1 and the nozzle orifice () has a diameter substantially the same as that of the nozzle bore. The invention also relates to method for operating a drop on demand ink jet printer incorporating such a valve.

Solenoid valve

Printer cabinet

Printer module

A method of printing onto one or more sides of a mesh fabric, such a polyester mesh typically used for flags and banners, using a drop on demand ink printer, wherein the printer is operated at a fluid pressure of between 1 and 3.5 bar and that the image forming composition has a viscosity of less than 100 cp.

System and method for providing image forming composition on a substrate using a drop on demand ink printer

Growing community of inventors

Cambridge, United Kingdom

Ammar Lecheheb