Xerox Corporation

Steven C Hart

Heiko Rommelmann

Cyril G Edmunds

Ajay Kumar

Jeffrey J Folkins

Alan Richard Kuntz

Thomas J Behe

William H Wayman

Bing R Hsieh

Daniel M Bray

Yuan Yu

Mark James Hirsch

Jeffrey Michael Fowler

Donald S Stanton

Ann M Kazakos

Allen J Thompson

Michelle L Schlafer

Gerald M Kryk

Timothy J Fuller

John F Yanus

Damodar M Pai

Palghat Srinivas Ramesh

Fred F Hubble, Iii

Delmer G Parker

Alberto Rodriguez

Michael D Thompson

Jorge Antonio Alvarez

Mark Steven Amico

Thomas J Hammond

James Michael Chappell

Scott Jonathan Bell

Alexander J Fioravanti

Patrick Jun Howe

Richard P Germain

Timothy R Jaskowiak

James P Martin

David B Playfair

Fa-Gung Fan

Lewis S Smith

Joseph G Schram

George A Charnitski

Glenn M Keenan

Will Phipps

Thomas W Pike

Paul J Rowe

Thomas W Nash

Daniel P White

Henry B Peters, Jr

Fei Xiao

Victoria F DeYoung

Lois A Eckstrom

Steven Robert LeRoy

Michael J DeLuzio

Saquiequois J Bissouma

Steven A Foltz

Paul W Morehouse

Pat C Campbell

Jan M Malicki

Peter L Sylvester, Jr

This is a photoconductor and dispenser assembly and system. The photoconductor is in a tubular form so as to accept a tubular formed dispenser within its hollow portion. The dispenser will coat within this hollow portion a uniform coating of an acoustical dampening material. This material will dull any sound produced by the photoconductive marking system. The assembly is the tube having in its hollow portion this dispenser. The dispenser fits tightly but movably within the hollow portion.

Apparatus for applying an acoustic dampening coating to the interior of a xerographic drum

A method feeds a continuous core of a print cartridge cleaning blade along a path. The path passes, in the following order, firstly through a coating bath or spray coating station, secondly by a curing station, thirdly through a cutter, and fourthly to a finisher station. Thus, the method herein coats portions of the continuous core that are in the coating bath/spray station with an outer covering. For portions of the continuous core that are adjacent the curing station, the method cures the outer covering of the continuous core; for portions of the continuous core that are in the cutter, the method cuts the continuous core into predetermined lengths; and for portions of the predetermined lengths of the continuous core that are adjacent the finishing station, the method finishes the outer covering of the predetermined lengths of the continuous core to produce a finished print cartridge cleaning blade.

Continuous manufacturing process for coated-core cleaner blades

A replaceable unit monitor assembly includes a substrate member, multiple thermal insulating stand-off members, and a monitor device mounted on the substrate member. The stand-off members mount the substrate member to an end hub of a fuser roll of a printing machine while limiting conductive heat transfer to the monitor device.

Apparatus and method for mounting an RF monitoring device onto a fuser roll

A coated-core cleaner blade has a core comprising a first material and a coating surrounding the core. The coating comprises a second material that is different than the first material. Further, the core (first material) is rigid compared to the coating (second material). Therefore, the first material has a first flexibility that is much less than a second flexibility of the second material.

Coated-core cleaner blades

Method for acoustic dampening of photoreceptor and ionographic drums using an acoustic dampening applied to and cured on the interior of a drum. Embodiments provide excellent acoustic dampening of the resonance modes, and thus, substantially eliminates the problematic sounds that are often emitted from the xerographic printing machines.

Acoustic dampening material for imaging drum

An interface antenna is positioned between a tag antenna associated with a tag and a reader antenna associated with a reader. The interface antenna receives an electromagnetic carrier signal transmitted by the reader antenna and causes an increase in intensity of the electromagnetic carrier signal at the location of the tag antenna, thereby increasing the distance over which the tag can communicate with the reader. Where the tag is attached to a packaged object, the interface antenna may be included in the package to allow wireless data communication between the tag and a reader external to the package. For example, the interface antenna may be attached to a label on the package. At least a portion of the interface antenna may be formed from a conductive ink applied to the label and/or the container. The object may be a module, also known as a customer replaceable unit (CRU), and the tag may be configured as a customer replaceable unit monitor (CRUM).

Interface antenna

A development subsystem is used to develop developer having semiconductive carrier particles and toner particles. The development subsystem includes a developer housing, for retaining a quantity of developer having semiconductive carrier particles and toner particles, a first magnetic roll having a stationary core with at least one magnet and a sleeve that rotates about the stationary core of the first magnetic roll, a second magnetic roll having a stationary core with at least one magnet and a sleeve that rotates about the stationary core of the second magnetic roll, and a motor coupled to the first and the second magnetic rolls to drive the rotating sleeves of the first and the second magnetic rolls in a direction that is against the direction of a photoreceptor that rotates in proximity to the first and the second magnetic rolls. The first and the second magnetic rolls carry semiconductive carrier particles and toner particles through a development zone formed by the first and the second magnetic rolls.

Xerographic developer unit having multiple magnetic brush rolls rotating against the photoreceptor

A developer system for developing an image in an electrophotographic printing machine, including: a developer housing having a toner sump containing developer material; a magnetic development member rotatably mounted in the housing for transferring toner particles to a latent image on the photoreceptive member in a development zone; a transport system for transporting developer material from the toner sump to the magnetic development member, the transport system includes: a mix/pump auger, disposed in a first auger channel, for mixing and circulating developer material along a first path within the first auger channel; a transport auger, adjacent to the mix/pump auger and disposed in a second auger channel, for circulating developer material along a second path within the second auger channel; a wall member disposed in between the mix/pump auger and the transport auger, the wall member having a first opening disposed near an inboard end of the housing and a second opening disposed near an outboard end of the housing, the first and second opening providing a recirculating path between the first and second paths; a pick up area define in the first path, the pick up area having a predefined developer material volume; and a third opening in the wall member, disposed adjacent to the pumping section associated with a pumping section of the mix/pump auger, for providing a spillway from the first path to the second path to allow excess developer material to be recirculated when the developer material volume of the pick up area is substantially full.

Developer housing design with improved sump mass variation latitude

A developer system, including: a developer housing having a sump containing developer material including toner particles; a developer member rotatably mounted in the housing for transferring toner particles to a latent image on the photoreceptive member in a development zone; a pickup auger, positioned in an auger channel, for transporting and delivering developer material to the developer member, along a path adjacent to the developer member, the pickup auger having a first end portion and a second end portion, and the pickup auger includes a plurality of blades extending along the length of thereof, the plurality of blades being mounted on a core having a core size, the core size being adapted and arranged in the auger channel to maintain a constant developer material distance from the developer member along the length the auger channel.

Xerographic developer unit having variable pitch auger

A developer system, including: a developer housing having a sump containing developer material including toner particles; a developer member rotatably mounted in the housing for transferring toner particles to a latent image on the photoreceptive member in a development zone; a pickup auger, positioned in an auger channel, for transporting and delivering developer material to the developer member, along a path adjacent to the developer member, the pickup auger having a first end portion and a second end portion, and the pickup auger includes a plurality of blades extending along the length of thereof, the plurality of blades being adapted and arranged in the auger channel to maintain a constant developer material distance from the developer member along the length the auger channel.

A xerographic printer or copier includes a replaceable cartridge having a cleaning blade and carrier particle pickoff member associated with a rotating charge receptor. As the cartridge is being used, carrier particles removed from the photoreceptor by the cleaning blade are magnetically retained on the pickoff member, where the remain for the balance of the lifetime of the cartridge. When a useable lifetime of the cartridge is spent, the carrier particles are removed from the pickoff blade.

Carrier pickoff system suitable for customer-replaceable xerographic printer cartridges

An extrudable magnet composition includes composite particles including thermoplastic resin and magnetic material, and a surface additive selected from silicon dioxide particles and ferrite particles, wherein the surface additive is applied to a surface of the composite particles.

Extrudable magnet compound with improved flow properties

A donor member, useful in ionographic or electrophotographic apparatuses and preferably useful in hybrid scavengeless development units, has a substrate and an oxidized transport coating thereover. The oxidized transport coating includes a polymer binder, charge transporting molecules and one or more oxidizing agents. The polymer binder of the donor roll coating preferably includes one of (1) a crosslinked polymer with charge transporting molecules dispersed therein, or (2) a crosslinked polyamide binder with hydroxy charge transport molecules dispersed therein. The donor roll is preferably included in a printing machine that develops latent images formed on a photoconductive member.

Crosslinkable polymer compositions for donor roll coatings

A donor member useful in ionographic or electrophotographic apparatuses and preferably useful in hybrid scavengeless development units, having a substrate and an oxidized transport coating including charge transport molecules, polymer binder, and an oxidized oligo arylamine salt comprising a cation of an oligo arylamine molecule and a counter anion.

Oxidized transport donor roll coatings

An electrophotographic printing machine in which an electrostatic latent image recorded on an imaging surface is developed with toner particles to form a visible image thereof, including a hopper containing a supply of carrier material; a first developer unit for developing the electrostatic latent image with toner particles of a first color; a second developer unit for developing the electrostatic latent image with toner particles of a second color; conduit for connecting the first and second developer unit to the hopper so that carrier material flows to the first and second developer unit; a first feeding system, in communication with the conduit, for regulating the amount of carrier to the first developer unit; a second feeding system in communication with the conduit, for regulating the amount of carrier to the second developer unit, and a controller for controlling the regulation rate of the first and the second feeding system independently.

Process controlled carrier dispensing

Growing community of inventors

Webster, NY, United States of America

Steven C Hart