Gaith O Zayed

US Patent:

54884586, Jan 30, 1996

Filed:

May 8, 1995

Appl. No.:

8/438139

Inventors:

Lawrence R. Benedict - Rushville NY
Gaith O. Zayed - Rochester NY

Assignee:

Xerox Corporation - Stamford CT

International Classification:

G03G 1500

US Classification:

355206

Abstract:

In a duplex printing integrity system for insuring that correctly matching pages are being printed by a duplex printer on the opposing first and second sides of the sheets, the duplex printer having a duplex loop path circulating sheets printed on one side back to be printed on their opposite side and an output path for feeding out the duplex sheets after they have been printed on both sides; the printer is operable to selectively print a few small, simple solid marks spaced along the sheets, specifically printing a sequence of sheets with correspondingly spaced and parallel print marks, with different spacings of the marks on the sheets for different sheets in the duplex loop. A first optical sensor in the output path line scan the first sides, and an adjacent second optical sensor scanning the second sides, and a comparison circuit continuously compares the sensor output signals to provide a duplex printing error signal when the first and second optical sensors provide different output signals at different times due to a duplex document sheet passing the sensors which is not printed on opposing sides with correspondingly spaced print marks. A time delay circuit may be connected between at least one of the first and second sensors and the comparison circuit to allow the sensors and/or the pattern of print marks to be offset from one another.

US Patent:

52258807, Jul 6, 1993

Filed:

Sep 10, 1991

Appl. No.:

7/757093

Inventors:

Bruce J. Parks - Fairport NY
David J. Lemmon - Hilton NY
Ahmad Haroon - Pittsford NY
Hector J. Sanchez - Webster NY
Richard W. Seyfried - Williamson NY
Gaith O. Zayed - Rochester NY
John S. Vouros - Farmington NY

Assignee:

Xerox Corporation - Stamford CT

International Classification:

G03G 2100

US Classification:

355296

Abstract:

An agglomerate removal device for removing unwanted particles from images on a photoreceptor includes vacuum pick off source and baffles that create a controlled aerodynamic drag under the photoreceptor before the images reach a transfer station. Removing the agglomerates improves the quality of images transferred at the transfer station to receiving substrates.

US Patent:

54656192, Nov 14, 1995

Filed:

Aug 12, 1994

Appl. No.:

8/289981

Inventors:

John D. Sotack - Rochester NY
William L. Dezen - Penfield NY
Lawrence R. Benedict - Rushville NY
Gaith O. Zayed - Rochester NY
Alan J. Werner - Rochester NY

Assignee:

Xerox Corporation - Stamford CT

International Classification:

G01F 2326

US Classification:

73304C

Abstract:

An apparatus for detecting the level of material in a container. The apparatus comprises a power source and a first electrode, positioned adjacent the container, electrically connected to the power source. The apparatus further comprises a second electrode. The second electrode is spaced from the first electrode and positioned adjacent the container. The apparatus further comprises an electrical amplifier which is electrically connected to the second electrode. The amplifier amplifies a current induced in the second electrode and generates a voltage signal. The amplifier is adapted to maintain the second electrode at a virtual ground to minimize environmental impedance effects. The apparatus further comprises a rectifier, electrically connected to the amplifier, for rectifying the voltage signal and a comparator, electrically connected to the rectifier, for comparing the voltage signal to a predetermined voltage signal corresponding to the container being full with material.

US Patent:

20190291998, Sep 26, 2019

Filed:

Jun 12, 2019

Appl. No.:

16/438740

Inventors:

- Norwalk CT, US
Rui Amorim - Fairport NY, US
Gaith O. Zayed - Ontario NY, US

International Classification:

B65H 29/24
B25J 15/06
B65H 3/08
B65H 5/14
B65H 7/04
B25J 9/16
B65H 43/02
B25J 15/00

Abstract:

An apparatus for picking a product, including a control circuit, at least one vacuum cup arranged to adhere at least one sheet of material to the at least one vacuum cup, and at least one sensor configured to monitor an area proximate the at least one vacuum cup, and transmit at least one signal regarding a presence of at least one sheet of material in the area, wherein the apparatus is arranged to displace to a second location while continuously monitoring the area proximate the at least one vacuum cup, the at least one sensor is configured to transmit the at least one signal, and the control circuit is arranged to determine, responsive to the at least one signal, the sheet of material is not present in the area, and generate an error signal indicating that the at least one sheet of material is not present in the area.

US Patent:

20160332837, Nov 17, 2016

Filed:

May 12, 2015

Appl. No.:

14/709785

Inventors:

- Norwalk CT, US
Rui Amorim - Fairport NY, US
Gaith O. Zayed - Ontario NY, US

International Classification:

B65H 29/24
B25J 15/06
B25J 9/16
B65H 43/02

Abstract:

An apparatus for picking a product, including: a control circuit; at least one vacuum cup arranged to adhere, with negative pressure and at a first location, at least one sheet of material to the at least one vacuum cup; and at least one sensor to monitor an area proximate the at least one vacuum cup and transmit at least one signal regarding a presence of at least one sheet of material in the area. The apparatus is arranged to displace to a second location. The control circuit is arranged to determine, responsive to the at least one signal, the at least one sheet of material is not present in the area and generate an error signal indicating that the at least one sheet of material is not present in the area.