Lexmark International, Inc.

Other

Sean David Smith

Bradley Leonard Beach

Ronald Willard Baker

Philip Jerome Heink

Gerald Lee Fish

Jing X Sun

Benjamin Alan Askren

Ligia Aura Bejat

Jean Marie Massie

Steven Robert Komplin

Michael Craig Leemhuis

Ashok Murthy

Donald Wayne Stafford

Donald Leo Elbert

Ronald Lloyd Roe

Mark Alan Wahl

John William Kietzman

Hrishikesh Pramod Gogate

Terence E Franey

David Starling MacMillan

James Philip Harden

Edward Lawrence Kiely

Peter Brown Pickett

Royden Thomas Kern

Bhaskar Gopalanarayanan

Stephen Francis DeFosse

Claudia Alexandra Marin

Lenci Robert Kappes

Tonya Harris Jackson

Michael Wesley Baskette

Andrew Charles Hogan

Randall Steven Gall

Charles Jerome Cheek

Jason Edward Gordon

Kirk Lawrence Stechschulte

Hishikesh Pramod Gogate

Embodiments for toner supply members, particularly toner supply member properties and architectures for controlling toner layer thickness supply to the developer member in image forming devices. In one embodiment the toner supply members have a foamed elastic body.

Properties of toner supply members for controlling toner layer thickness in an image forming device

A toner feeding device and method to supply toner from a toner reservoir to a selected location in the printer such as a toner supply roll. The toner feeding device may contact with a portion of an inner wall of a toner reservoir and may flex and may subsequently recover to convey toner particles.

Flexible toner feed member

A coating apparatus for applying a coating liquid to a printing substrate. The coating apparatus has a rotatable first roll and a rotatable second roll, each having a surface energy. The second roll is positioned adjacent to the first roll and defines with the first roll a first nip through which the printing substrate passes A metering device is provided for applying a substantially uniform layer of coating liquid onto the second roll. The second roll in turn transfers the coating liquid to the printing substrate. The surface energy of the second roll is greater than the surface energy of the coating liquid. In one embodiment, the metering device includes a rotatable third roll and a doctor blade contacting the third roll, each having a surface energy. The surface energy of at least a portion of either or both the third roll and doctor blade is less than the surface energy of the coating liquid.

System and method of coating print media in an inkjet printer

An apparatus for ink-jet printing including an ink-jet print head to jet ink, a coating solid, and a coating holder to support the coating solid, wherein the coating holder transfers a portion of the coating solid onto a medium to form a coating solid layer. The coating holder and coating solid may be combined in a removable cartridge. In addition, the medium may be an intermediate transfer medium, a media support medium, a transfer medium, or media, such as paper. A method for inkjet printing also includes applying a coating solid to a medium to form a layer of the coating solid, in a solid form, having predetermined thickness, and applying ink to the medium. The layer of coating solid may interact with the applied ink to destabilize colorant in the ink.

Apparatus and method for printing using a coating solid

A layered intermediate used in inkjet printing contains a release coat formed on a transfer medium in an area where an image has not been printed. The release coat is formed of polyvinyl pyrrolidone (PVP) or a PVP copolymer and at least one solvent selected from the group consisting of glycol solvents and diol solvents. A viscous coating of PVP or the PVP copolymer is formed on the transfer medium in an area where an image has been printed. A release layer formed from components in the release coat and components in the ink is formed on the viscous coating. A first ink layer is formed on the release layer of flocculated ink. A second ink layer is formed on the first ink layer, of ink that is substantially not flocculated.

Method of printing and layered intermediate used in inkjet printing

A star wheel manufacturing process, and a star wheel manufactured thereby, suitable for an ink jet printer. Metal is formed by chemical milling, subtractive etching or the like, into the desired star wheel configuration, including a plurality of radially extending projections having tips. At least a portion of each tip has an electropolished surface. A coating of fluorinated polymer or the like may be applied to at least a portion of the electrolpolished surface on each tip.

Star wheel surface enhancement and process of manufacture

The invention relates to an ink jet printer nozzle plate containing nozzle holes and having a durable non-wettable layer on at least one surface thereof. The nozzle plate includes a polyimide material and the non-wettable layer contains a derivative of an amine-terminated silane compound, the amine-terminated silane compound derivative being covalently bound to the polyimide material of the nozzle plate. The layer also contains a derivative of a polydialkylsiloxane compound having a number average molecular weight ranging from about 400 to about 150,000 and an end group reactive with the amine-terminated silane compound derivative. The polydialkylsiloxane compound derivative is bound to the amine-terminated silane compound derivative by a condensation reaction to provide the durable non-wettable layer on the surface of the nozzle plate. Because of covalently bonding the silane and polydialkylsiloxane materials to the polyimide, the non-wettable layer remains substantially durable throughout the life of a printhead containing the nozzle plate.

Surface modified nozzle plate

The specification describes a method and composition for treating selected areas of the surface of a polyimide material used to make a nozzle plate for an ink jet printer in order to decrease the surface energy of the polyimide material so ink repellency of the material is increased in the selected areas. The method includes applying a polydialkylsiloxane having reactive end groups to the selected areas of the polyimide material and curing the polydialkylsiloxane on the surface to provide a surface having decreased surface energy. A particularly preferred polydialkylsiloxane is an amine terminated polydialkylsiloxane having a molecular weight ranging from about 500 to about 40,000 number average molecular weight. Because the polydialkylsiloxane is relatively stable at the adhesive curing temperatures used to bond the nozzle plate to a semiconductor chip, the polydialkylsiloxane can be applied prior to curing the adhesive thereby reducing the steps required to provide nozzle plates having decreased ink wettability.

A method and apparatus for treating a reticulated material whereby the dimensional integrity of the material is maintained. The invention includes apparatus for maintaining a length, a width and a height of a reticulated material for use in a ink jet print head during treatment of the material. In a preferred embodiment, the apparatus includes a substantially rigid chamber having an interior length, width and height which correspond substantially to the length, width, and height of the reticulated material, structure for retaining the reticulated material within the chamber, structure for introducing a treating solution into chamber, and structure for removing the treating solution from the chamber.

Method for treating ink jet foam to remove impurities

Open-Cell urethane foam is thoroughly dried in a convection oven or controlled atmosphere and then compressed with heat to a felt immediately. Alternatively, the dried foam is sealed in a plastic bag until the felting step. The amount of non-volatile residue is significantly reduced to produce a foam for use to contain ink in an ink jet cartridge.

Method of maintaining a low residue open-cell felted foam

Growing community of inventors

Lexington, KY, United States of America

Sean David Smith