Xerox Corporation

Other

Nero R Lindblad

Herbert C Relyea

David Bradley Montfort

Bruce Earl Thayer

Henry R Till

James M Casella

James C Diehl

Edward L Schlueter, Jr

Jan Bares

James F Smith

Robert J Meyer

Charles L Beatty

Neil A Frankel

Gordon E Johnson

Darryl L Pozzanghera

Christopher W Curry

James H Sharp

Fred W Schmidlin

Ivan Rezanka

Ronald E Godlove

Clark V Lange

Richard L Carlston

Larry G Hogestyn

Robert C Yu

Morton Silverberg

Richard L Schank

Michael Nicholas Soures

Michael C Mongeon

Daniel M Bray

Merlin E Scharfe

Douglas A Lundy

Robert N Finsterwalder

Robert Steven Pozniakas

Lucille M Sharf

Andrew R Melnyk

Kip L Jugle

Don B Jugle

Dennis G Gerbasi

Samuel P Mordenga

James M Pearson

Steven J Fiore

Richard L Forbes, Ii

Anthony E Audi

Richard W Bigelow

Walter F Leising

Charles M Gardiner

Ronald E Auty

Rodney B Proulx

Robert E Trott

N Kedarnath

Raymond D Wilcox

Clive R Daunton

Rene E Sanchez

Alvin J Owens, Jr

Steven R LeRoy

Leroy M Nye

Crystal A Martin

Gregory J Mancine

Francois Soos

Kathryn A Domagall

Mort Silverberg

Richard G Maus

Alexander J Floravanti

Karen H Kuntz

Kenneth L Timmons

John V Cassidy

A rotating cleaning brush positioned to clean toner and debris from the back of an imaging belt. Additionally, a plurality of cleaning brushes assembled to clean the back of the imaging belt wherein charging a first and a second brush to approximately equal potential but opposite polarity provides superior discharge of static and other electrical charges from the back of the imaging belt.

Back of the belt cleaner in an imaging system

An apparatus for controlling velocity variations in a belt wrapped about at least a first driven roller and a support structure, including a drive for driving the first driven roller so as to provide torque to the belt; and a dampener, in contact with the belt, for minimizing variations of the velocity of the belt, the dampener including a power supply for applying an electrical bias to generate a drag force on the belt.

BOB cleaners to control and maintain PR module motion quality latitude

A cleaning apparatus for removing particles from a moving surface includes a movable blade holder having at least one geometrically formed slot. A removable blade matably fits into each geometrically formed slot. Each of the removable blades has at least one cleaning edge, which is in frictional contact with the moving surface during a cleaning operation. An individual blade may be removed from the blade holder by an operator to replace a used cleaning edge with an unused cleaning edge.

Cleaning apparatus having multiple wiper blades

An apparatus for removing electrostatically charged particles from a surface such as the backside of an image bearing belt of the type found in an electrostatographic printing apparatus or a drive roller supporting an image bearing belt. The apparatus includes an electrically biased cleaning blade, a supporting device, and a housing for storing the particles removed from the surface by the cleaning blade.

Blade for removing electrically charged particles from the back side of a belt in an electrostatographic apparatus

A relatively hard cleaning blade for use in a cleaning apparatus in an imaging apparatus for cleaning residual toner particles, including dry and liquid ink toners and carriers, from an imaging surface, the cleaning blade having a material having a hardness of from about 86 to about 120 Shore A.

Hard cleaning blade for cleaning an imaging member

A method for monitoring filming levels on a photoreceptor surface of a printing machine includes the use of an enhanced toner area coverage sensor to measure level of filming of substantially the entire photoreceptor surface, the sensor being located at a point downstream from a cleaning station of the printing machine. When the measurement indicates that the filming is unacceptably high on a portion of the photoreceptor surface, corrective action is implemented, for example filming removal. The sensor is preferably mounted in a manner such that it may be moved over substantially the entire surface of the photoreceptor. Also, an electrostatic voltmeter is preferably mounted along with the sensor in order to monitor the charging of the photoreceptor surface.

Apparatus including and use of an enhanced toner area coverage sensor to monitor filming levels on a photoreceptor surface

An apparatus for removing electrostatically charged particles from a surface such as the backside of an image bearing belt of the type found in an electrostatographic printing apparatus or a drive roller supporting an image bearing belt. The apparatus includes an electrically biased brush having a substrate and a multiplicity of conductive fibers extending outwardly to contact the surface to be cleaned, a supporting device, and a cleaning device for removing collected particles from the brush. The supporting device for the brush rotates, thereby moving the brush and causing clean fibers to contact the surface to be cleaned.

Cleaning brush for non-imaging surfaces in an electrostatographic printer or copier

An apparatus for removing electrostatically charged particles from a surface such as the backside of an image bearing belt of the type found in an electrostatographic printing apparatus or a drive roller supporting an image bearing belt. The apparatus includes an electrically biased foam pad having a conductive substrate and conductive foam material extending outwardly therefrom to contact the surface to be cleaned, a supporting device, and a cleaning device for removing collected particles from the foam pad. The supporting device for the foam pad rotates, thereby causing clean foam material to contact the surface to be cleaned.

Foam pad for removing electrostatically charged particles from a surface

A cleaning system for increasing the packing density of a cleaner sump that uses magnetic toner, by filling unused sump space. The cleaning system uses a magnetic force to attract the magnetic waste toner to the sump area not filled by gravity assistance alone. The magnetic force is created by a magnet. The magnet can be either internal to the sump or external thereto.

Cleaner sump with magnetic transport

An apparatus for efficient cleaning of the imaging surface. The primary cleaner is a rotating collection roll located directly opposite from and on the other side of the imaging surface from the ultrasonic cleaning assist device. The ultrasonic energy is used to remove the toner from the imaging surface enabling attraction toward the biased collection roll. The ultrasonic energy decreases the amount of residual toner remaining after transfer. The residual toner that is not cleaned from the surface by the collection roll is removed from the surface by the rotating biased conductive brush, which is the secondary cleaner. The collection roll is contactless in that it does not come into contact with the photoreceptor. In another embodiment of the invention, the primary cleaner and the secondary cleaner are collection rolls with ultrasonic cleaning assist devices directly under each collection roll. The entire cleaning system is contactless.

Single brush cleaner with collection roll and ultrasonic cleaning assist

A printing machine and apparatus are disclosed that include an ultrasonically assisted cleaning blade to remove toner particles from an imaging surface. An ultrasonic transducer is attached to the cleaning blade to provide vibrational energy to the cleaning blade. The ultrasonic transducer concentrates vibrational energy at the blade tip for enhanced cleaning. A further element of the present invention is the addition of bias to create a strong electrostatic repulsion between the toner particles and the blade tip causing the toner to explode away from the cleaning edge, and to therefore enhance cleaning.

Ultrasonic assist for blade cleaning

Apparatus and method for separating and recovering separately toner particles of one matchable characteristic different color toner contained in a mixture of a plurality of such different color toners. The apparatus and method include a holder for holding a quantity of the mixture of a plurality of such different color toners, and a selected particular type of carrier beads characteristically matching, and being more likely to charge, attract and triboelectrically bind with, toner particles of a matching color toner in the mixture of the different color toners than with toner particles of any other color toner therein. The apparatus and method also include a blending device for forming, in the holder an admixture of a quantity of the mixture of the different color toners and a quantity of the selected particular type of carrier beads such that the admixture has a toner coated carrier phase and a loose toner particles phase, and such that the toner coated carrier phase consists of the selected particular type of carrier beads coated with toner particles of the matching one color toner of the different color toners of the admixture. The apparatus and method further include separating mechanisms for separating the toner coated phase from the loose toner particles phase, and a recovery mechanism for separating and removing, from the coated selected particular type of carrier beads of the toner coated phase, the toner particles of the matching one color toner.

Method and apparatus for mixed color toners separation and recovery

A preconditioning process and dual electrostatic brush cleaning apparatus for reducing adhesion of toner particles on the photoreceptor surface such that cleaning of the photoreceptor is enhanced. Preconditioning of the brush and/or the photoreceptor in the cleaning apparatus allows for cleaning of dual polarity toners, CAD toners and DAD toners. The preconditioning of the brush does not need replenishing once the print operation begins due to the electrostatics that maintain a constant predetermined level of toner in the brush.

Preconditioning of photoreceptor and cleaner brush

A spots cleaning blade for use in a cleaning apparatus in an imaging apparatus for cleaning agglomerate particles from an imaging surface, the spots cleaning blade comprising a polyether urethane and having a high hardness and low coefficient of friction.

Cleaning blade

An apparatus and method for cleaning charged triboelectric negative toner residual particles from the photoreceptor surface. A positive bias is applied to two electrostatic brushes in the dual cleaning system or to a single electrostatic brush. The rotational speed of the single positive brush is increased, over that of the individual brushes in a dual brush cleaner, to clean charged triboelectric negative toner particles.

Correct brush bias polarity for single and dual ESB cleaners with

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Ontario, NY, United States of America

Nero R Lindblad