Xerox Corporation

Brendan H Williamson

David P Van Bortel

Paul Michael Fromm

Erwin Ruiz

Steven Matthew Russel

Brian John McNamee

Yuhua Tong

Eric Scott Hamby

Augusto E Barton

David Bradley Montfort

John L Pawlak

Timothy L Lincoln

Faming Li

William H Hollenbaugh, Jr

William Alexander Burton

Stephen Bradley Williams

Lawrence Arnold Clark

Melissa Ann Monahan

Rebecca Mary Hainley

William H Hollenbaugh

William H Hollenbaugh Jr

An air knife for separating media from a roll in an image forming system includes a body; a first air plenum; a first plenum passage fluidly connected to the first air plenum; a first exit passage fluidly connected to the first plenum passage; a first air exit fluidly connecting the first exit passage to an outside of the body such that the first air plenum is fluidly connected to the outside of the body through the first air exit; a second air plenum separated from the first air plenum such that fluid in the second air plenum is separated from fluid in the first air plenum; a second plenum passage fluidly connected to the second air plenum; a second exit passage fluidly connected to the second plenum passage; and a second air exit fluidly connecting the second exit passage to an outside of the body.

Multi-chambered air knife for image forming system

A toner that includes at least one polyester resin wherein the amount of free polyvalent acid monomer in the polyester resin is less than 4 mg/gram, and wherein the percentage of the at least one polyester resin with a Mless than 1500 is less than about 10%.

Purified polyester resins for toner performance improvement

An apparatus () and method that meters fluid film in an ink jet printing system is disclosed. The apparatus can include a source of fluid film () and a source metering assembly () rotatably supported in the apparatus. The source metering assembly can have a source metering assembly surface () coupled to the source of fluid film and the source metering assembly surface can be configured to transport fluid film from the source of fluid film. The apparatus can include a donor assembly () rotatably supported in the apparatus, where the donor assembly can have a donor assembly surface () coupled to the source metering assembly surface and the donor assembly surface can be configured to transport fluid film from the source metering assembly surface. The apparatus can include an ink jet printhead () configured to emit ink and a print assembly () rotatably supported in the apparatus. The print assembly can have a print assembly surface () coupled to the donor assembly surface, where the print assembly surface can be configured to transport fluid film from the donor assembly surface and the print assembly can be configured to receive ink from the ink jet printhead and produce an image on media using the ink.

Apparatus and method for metering fluid film in an ink jet printing system

Apparatuses useful in printing and methods of mitigating media edge wear effects on fixing belts in printing are provided. An exemplary apparatus useful for printing onto media includes a first roll including a first surface; a second roll including a second surface; a fixing member including a third surface; a fixing belt supported on the first surface and second surface, the fixing belt including a surface forming a nip with the fixing member; a registration distribution system for translating the first roll, second roll, fixing member and fixing belt, as a unit, transversely with respect to a media travel path of media received at the nip; and a belt steering mechanism connected to the second roll for translating the fixing belt across the first surface of the first roll at the nip, transversely to the media travel path, while the registration distribution system translates the first roll, second roll, fixing member and fixing belt transversely to the media travel path.

Apparatuses useful in printing onto media and methods of mitigating media edge wear effects on fixing belts in printing

Apparatuses useful in printing onto media and methods for stripping print media from belts are disclosed. An exemplary apparatus useful in printing onto media includes a first member including a first surface; a second member; a fixing belt supported on the second member, the fixing belt including an inner surface and an outer surface, the first surface and the second surface forming a nip at which media are received; and a vibrating stripping device disposed between the second member and the inner surface of the fixing belt. The vibrating stripping device includes a stripping member including a stripping surface and a drive mechanism. The drive mechanism produces vibration of the stripping surface and the fixing belt, and the vibration of the fixing belt assists separation of media passed through the nip from the outer surface of the fixing belt adjacent to the stripping surface of the stripping member.

Apparatuses including a vibrating stripping device for stripping print media from a belt and methods of stripping print media from belts

A rapid warm-up and cool-down pressure roll assembly is provided and includes (a) a rotatable pressure roll including a cylindrical sleeve having an outer surface, and an inner surface defining a hollow interior to the rotatable pressure roll; (b) a thermoelectric assembly sheet positioned within the hollow interior and having a first substrate facing the inner surface of the cylindrical sleeve, a second substrate, an electric current flow path therethrough, and electric current input and output terminals associated with the electric current flow path; and (c) an electric current input switching device connected to the electric current input and output terminals for enabling selective reversing of a direction of electric current flow through the electric current flow path, thereby reversing which of the first substrate and the second substrate of the thermoelectric assembly sheet is hot and which is cold, and therefore selectively enabling a rapid warm-up or rapid cool-down of the cylindrical sleeve of the pressure roll.

Rapid warm-up and cool-down pressure roll assembly and a fusing apparatus including same

Liquid supply systems, fusers and methods of supplying liquids in printing apparatuses are disclosed. An exemplary embodiment of a liquid supply system for supplying liquid to a fusing surface of a fuser member, comprises a metering roll having a first outer surface; a donor roll having a second outer surface disposed adjacent the first outer surface to define a first nip between the first and second outer surfaces; and a liquid reducing roll having a third outer surface adapted to be disposed adjacent the second outer surface to define a second nip between the second and third outer surfaces. The metering roll is adapted to convey the liquid from the first outer surface to the second outer surface. The donor roll is adapted to be disposed adjacent the fuser member such that the second outer surface and the fusing surface define a third nip, and to convey the liquid from the second outer surface to the fusing surface. The liquid reducing roll is adapted to remove a portion of the liquid from the second outer surface before the liquid is conveyed to the fusing surface.

Liquid supply systems, fusers and methods of supplying liquids in printing apparatuses

An apparatus () and method () that meters fluid film in an image fusing system. The apparatus can include a source of fluid film () and a source metering roll () rotatably supported in the apparatus. The source metering roll can have a source metering roll surface () coupled to the source of fluid film, where the source metering roll surface can be configured to transport fluid film from the source of fluid film. The apparatus can include a donor belt () having a donor belt surface () coupled to the source metering roll surface. The donor belt surface can be configured to transport fluid film from the source metering roll surface. The apparatus can include a second metering roll () rotatably supported in the apparatus. The second metering roll can have a second metering roll surface () coupled to the donor belt surface, where the second metering roll surface can be configured to transport fluid film from the donor belt surface. The apparatus can include a fuser assembly () having a fuser assembly surface () coupled to the donor belt surface. The fuser assembly surface can be configured to transport fluid film from the donor belt surface and the fuser assembly can be configured to fuse an image on media.

Apparatus and method for metering fluid film in an image fusing system

Fusers, printing apparatuses and methods, methods of fusing toner on media are disclosed. An embodiment of the fusers for fusing toner on a medium includes a rotatable fuser member including an outer fusing surface; a first indenter adapted to form a first indentation in the fusing surface at a first location during movement of the fuser member relative to the first indenter; and a second indenter adapted to form a second indentation in the fusing surface at a second location laterally spaced from the first location during movement of the fuser member relative to the second indenter.

Growing community of inventors

Rochester, NY, United States of America

Brendan H Williamson