Xerox Corporation

John A Wargo

Robert Arnold Gross

Kenneth Paul Moore

Robert Steven Pozniakas

James Lawton Giacobbi

David E Rollins

Eugene J Manno

Daniel L Morris

Raymond H Legatti

John D Gramlich

Daniel H Burnett

Michael E Beard

Douglas W Sass

Alvin J Owens

Ahmed-Mohsen T Shehata

Glenn M Herbert

David J Lemmon

Richard M Baran

Russell McDonald

Joel A Rossbach

Fredrick M Hausner

Frank A Cerminara

Luis H Serentill

An office machine including a machine frame defining an operating environment, operating components mounted within the frame and requiring environmental conditioning such as cooling and cleaning, and an air blower for conditioning the operating environment within the frame. The air blower includes a housing having a housing wall defining an air path and an air discharge opening, a discharge nozzle, mounted over the discharge opening for directing air being discharged away from the housing, a pinch point formed between the housing wall and the discharge nozzle at the discharge opening, an air moving assembly including a rotatable impeller mounted within the housing for drawing air into the air path, and a blower noise reducing device on the pinch point for minimizing air stagnation at the pinch point. The blower noise reducing device includes a first surface for protruding into the air path, and a second surface for protruding into the discharge nozzle, for minimizing air stagnation within the air path and within the discharge nozzle, thereby reducing bower noise.

Office machine including a blower having a blower noise reducing device

A modular leakage current detector and machine interrupter including a sense module for detecting ground fault currents in excess of a given value, the sense module including circuitry to provide an interrupt signal, a circuit interrupter interconnected to the sense module to disconnect power to the machine upon receipt of the interrupt signal, and a test and control module electrically connected to the sense module, the test and control module providing a fault signal to periodically test the operability of and reset the modular leakage current detector and machine interrupter.

Modular, distributed equipment leakage circuit interrupter

A xerographic CRU (Customer Relpaceable Unit) for an electrophotographic printing machine. The xerographic CRU has retaining features and cooperates with a drive module with certain retractable features that allow the insertion and removal of the CRU without causing damage to the photoreceptor and other critical subsystems. The unit further has many locating members for other subsystems so that critical tolerances are maintained. An interface with a single handle assembly retracts/unlocks and extends/locks the drive module and the associated CRU subsystems into an operative position. The CRU also has electrical and drive connections for the cleaning system, the charging system and transfer/detack.

Modular xerographic customer replaceable unit (CRU)

A developer housing of an electrostatographic reproducing machine of the type using a magnet roll is provided with two openings in at least one of its side walls. The first of these holes is located at the high pressure portion of the housing, and the second of the holes is located at the low pressure end of the housing. The holes are interconnected by a pneumatic duct. A pressure differential is created as vane-like whiskers of developer are rotated about the magnet roll. The duct neutralizes these pressure differentials within the developer housing, thus preventing toner from being blown out of the developer housing.

Neutral pressure magnet roll type developing unit

A multifunction blower in which a common housing is employed to both increase and decrease the pressure of incoming air in separate chambers thereof. The increase and decrease in air pressure is adjustable by changing the impellers of the pressure and vacuum assemblies used therein.

Universal blower

Growing community of inventors

Macedon, NY, United States of America

John A Wargo