Stephen M Borostyan

US Patent:

43414567, Jul 27, 1982

Filed:

Jun 27, 1980

Appl. No.:

6/163459

Inventors:

Venkat K. Iyer - Webster NY
Stephen Borostyan - Victor NY
Timothy T. Blair - Farmington NY

Assignee:

Xerox Corporation - Stamford CT

International Classification:

G03G 1500

US Classification:

355 3TR

Abstract:

With the advent of low volume, low cost desk top copiers, a low cost transfer system is needed. The present invention uses a brush having conductive bristles, and a low voltage source, the brush being mounted adjacent to, but not in contact with a photoreceptor. A copy sheet is directed toward the bristles to deflect the bristles so that the bristles are in contact with the back side of the copy sheet as it contacts the toner image on the photoreceptor. Immediately before the trailing edge of the copy sheet moves out of contact with the photoreceptor, the brush is returned to its original position without contacting the photoreceptor.

US Patent:

47500182, Jun 7, 1988

Filed:

Jun 26, 1987

Appl. No.:

7/067577

Inventors:

Arthur M. Gooray - Penfield NY
Dennis A. Abramsohn - Pittsford NY
Stephen M. Borostyan - Victor NY
Joseph Mammino - Penfield NY

Assignee:

Xerox Corporation - Stamford CT

International Classification:

G03G 1500

US Classification:

355 14SH

Abstract:

A copier/printer having a transfer station for transferring images from an imaging member to copy sheets includes the improvement of removing debris from the surfaces of copy sheets facing the imaging member before the copy sheets reach the transfer station. At least a pair of cooperating rolls are positioned to form a nip for driving the copy sheets therebetween toward the transfer station. The cooperating rolls include a drive roll and a dielectric roll with the dielectric roll being electrostatically charged by the drive roll and paper through contact and separation during the intercopy gaps between copy sheets in transit to the transfer station through contact with the copy sheets to electrostatically attract debris from the copy sheets.

US Patent:

53371216, Aug 9, 1994

Filed:

Mar 12, 1993

Appl. No.:

8/030973

Inventors:

Stephen Borostyan - Victor NY
David M. Borostyan - Rochester NY

Assignee:

Xerox Corporation - Stamford CT

International Classification:

G03B 2734

US Classification:

355 57

Abstract:

A variable magnification copier apparatus includes an optical system which incorporates two pairs of moving mirror assemblies which are moved to maintain object and image conjugate requirements following magnification changes. Also included is a constant focal length lens movable between two segments of a folded optical path. The optical system provides a magnification range of between 0. 45X and 2. 0X, while positioning the optical elements in a compact design. The lens does not move along the optical path, but rather remains fixed in position along one path segment so long as magnification values are selected within a certain range. When the magnification value is selected outside the predetermined range, the lens moves to an adjacent segment of the optical path and remains in a second, fixed position so long as further magnification values are selected within a second range. When a range is selected outside the second range, the lens is moved back to the first position.

US Patent:

50310046, Jul 9, 1991

Filed:

Feb 26, 1990

Appl. No.:

7/485011

Inventors:

Stephen Borostyan - Victor NY

Assignee:

Xerox Corporation - Stamford CT

International Classification:

G03G 1501
G03G 1506

US Classification:

355327

Abstract:

An apparatus in which successive developer units are moved to a development zone to develop with different color toner successive latent images recorded on a photoconductive member. Developer units remote from the development zone are sealed to prevent the escape of toner therefrom and the contamination of the developer unit.

US Patent:

56623216, Sep 2, 1997

Filed:

Oct 10, 1995

Appl. No.:

8/541949

Inventors:

Stephen Borostyan - Victor NY
David M. Borostyan - Newport News VA

International Classification:

B65H 500

US Classification:

271 1003

Abstract:

The disclosed document feeder apparatus includes a document drive that comprises only a single line of feed rollers with a simple skew adjustment system. This drive is shown incorporated in a cassette-loaded automatic document feeder ("ADF") that is attachable to an existing independent engineering document copier in a non-intrusive manner. The cassette can be loaded, either when positioned in the ADF or at a location remote from the ADF, with a stack of large engineering documents of mixed media and varying sizes; and it is even possible for the cassette to carry a document several yards (meters) long. Documents are fed serially from the top of the stack through the ADF's document flow path by the document drive which is centered for alignment along a line positioned parallel to the document flow path. A speed control assembly, all parts of which are located within the ADF itself, adjusts the speed of the document in the ADF feed rollers to match the speed of the independent copier's constant velocity transport. The leading edge of each successive document is sensed and, if not perpendicular to the flow path, is correctly realigned by the skew adjustment system that momentarily reorients one of the ADF's in-line feed rollers to an adjustment position that is slightly out of angular alignment with the feed roller center line.

US Patent:

53071310, Apr 26, 1994

Filed:

Dec 14, 1992

Appl. No.:

7/990851

Inventors:

Stephen Borostyan - Victor NY

Assignee:

Xerox Corporation - Stamford CT

International Classification:

G03G 2100

US Classification:

355272

Abstract:

An apparatus for registering successive toner images to a sheet includes a rotatable photoreceptor drum having a transfer zone on its circumferential surface at which toner images are transferred to the sheet, a generally cylindrical member having a circumferential surface adjacent the photoreceptor drum at the transfer zone, the cylindrical member having a radius which is an integer multiple of the radius of the photoreceptor drum, and a belt for moving the sheet around the circumferential surface of the cylindrical member in a recirculating path. A sensor detects when a lead edge of the sheet is a first predetermined distance from the transfer zone, and a polygon raster output scanner responsive to the sensor forms a latent image on the photoreceptor drum when the sensor detects the lead edge of the sheet, at an imaging point which is a second predetermined distance from the transfer zone, the second predetermined distance not exceeding the first predetermined distance.

US Patent:

40553809, Oct 25, 1977

Filed:

Oct 29, 1975

Appl. No.:

5/626888

Inventors:

Stephen Borostyan - Victor NY

Assignee:

Xerox Corporation - Stamford CT

International Classification:

G03G 15048

US Classification:

355 3R

Abstract:

In an electrostatographic copier in which imaging material is transferred from an image support surface to an overlying copy sheet in a transfer station by electrical transfer charges, the variable leakage conduction of these transfer charges by the copy sheet away from the transfer area (to contacting conductive members) changes the available transfer field strength, thus affecting transfer efficiency and quality. Here the conductive members contacting the copy sheet while it is in the transfer station are electrically connected to ground only through a high resistance whereby the transfer leakage currents through the paper provide a compensatory self-biasing floating voltage on the conductive surfaces which opposes these leakage currents.

US Patent:

40777090, Mar 7, 1978

Filed:

Aug 26, 1975

Appl. No.:

5/607746

Inventors:

Stephen Borostyan - Victor NY
Douglas P. Connolly - Webster NY
Alan D. Friske - Rochester NY

Assignee:

Xerox Corporation - Stamford CT

International Classification:

G03G 1516

US Classification:

355 3TR

Abstract:

In an electrostatographic copier in which imaging material is transferred from an image support surface to an overlying copy sheet in a transfer station, by electrical transfer charges, the variable leakage conduction of these transfer charges by the copy sheet away from the transfer area (to contacting conductive members) changes the available transfer field strength, thus affecting transfer efficiency and quality. Here the conductive members contacting the copy sheet while it is in the transfer station are electrically isolated from ground and connected to feed back the sheet leakage currents to circuitry providing a compensatory change in the applied transfer charges.