Thomas C Keyes

US Patent:

6963717, Nov 8, 2005

Filed:

Nov 23, 2004

Appl. No.:

10/996111

Inventors:

William R. Klimley - Rochester NY, US
Thomas C. Keyes - Fairport NY, US
Scott Martin - Fairport NY, US

Assignee:

Xerox Corporation - Stamford CT

International Classification:

G03G015/20

US Classification:

399323, 271311, 271900

Abstract:

A fuser stripper baffle exit minimizes differential gloss marks due to paper contacting the fuser exit baffle. Portions of paper that touch the baffle cool differently than portions that don't, resulting in differential gloss in the paper path or spanwise direction. The exit baffle contains a series of axial-direction steps or plateaus in its upper surface, such that the highest step is nearest the fuser roll, while the lowest plateau is furthest from the roll. This reduces the surface area of the fuser stripper baffle exit that contacts the surface of the paper sheet as the paper sheet is stripped from the fuser roll. The paper thus touches the exit baffle for the minimum amount of time, thus minimizing the heat transfer to the baffle. This minimizes differential cooling effects which, in turn, minimizes differential gloss.

US Patent:

7809323, Oct 5, 2010

Filed:

Apr 4, 2007

Appl. No.:

11/696411

Inventors:

Daniel E. Johnston - Webster NY, US
Thomas C. Keyes - Fairport NY, US
Brian C. Cyr - Penfield NY, US

Assignee:

Xerox Corporation - Norwalk CT

International Classification:

G03G 15/00

US Classification:

399406, 399397

Abstract:

A device, method and program for automatically adjusting a paper curl of media in an imaging device are provided. The imaging device includes a decurler having two rollers defining a nip. A first roller has a substantially uncompressible surface, and a second roller has a substantially compressible surface. The first roller penetrates the second roller at the nip. The amount of curl of the media is adjusted at the nip by automatically adjusting the penetration of the second roller into the first roller. The amount of penetration of the second roller into the first roller is based on a set of factors and conditions. A penetration value based on the factors and conditions is used to adjust the position of the first roller and the second roller respective to each other, which in turn, will alter or reduce the media curl to a target curl.

US Patent:

8200136, Jun 12, 2012

Filed:

Aug 26, 2010

Appl. No.:

12/868936

Inventors:

Christopher A. DiRubio - Webster NY, US
Paul F. Sawicki - Rochester NY, US
Thomas C. Keyes - Fairport NY, US
Edward W. Schnepf - Ontario NY, US

Assignee:

Xerox Corporation - Norwalk CT

International Classification:

G03G 15/16

US Classification:

399313, 399121, 399297, 399318

Abstract:

Disclosed is an image transfer roller (ITR) utilizing an elastomer crown, imaging devices and imaging apparatus using the disclosed ITR. According to one exemplary embodiment, an ITR includes a cylindrically shaped conductive shaft and an elastomer material covering all or a portion of the conductive shaft. The profile of the outer surface of the elastomer material includes a substantially quadratic crown profile.

US Patent:

8544386, Oct 1, 2013

Filed:

Sep 12, 2006

Appl. No.:

11/531024

Inventors:

Thomas C. Keyes - Fairport NY, US
Thomas E. Bitter - Fairport NY, US
Ronald A Ippolito - Rochester NY, US
Dale T. Platteter - Fairport NY, US
Richard F. Scarlata - Rochester NY, US
Joe Marasco - Fairport NY, US
Donald R. Fess - Penfield NY, US
Diego A. Pereda - Fairport NY, US
Douglas F. Sundquist - Webster NY, US

Assignee:

Xerox Corporation - Norwalk CT

International Classification:

B41F 13/24
B41F 13/64
B41F 31/00
G03G 15/00

US Classification:

101232, 101240, 270 12, 270 14, 270 15, 399382, 399406

Abstract:

Embodiments herein comprise an apparatus that includes a printing engine and an interposer adapted to receive printed sheets from the printing engine. The interposer adds insert sheets between printed sheets. The interposer includes a decurler positioned within the interposer so as to decurl the printed sheets after the interposer adds the insert sheets. The printing engine adds a curl to the printed sheets and the decurler removes the curl from the printed sheets. The decurler can comprise a roller-based decurler, a heated decurler, a pressure based decurler, and/or a moisture-vacuum based decurler.

US Patent:

20130272735, Oct 17, 2013

Filed:

Apr 16, 2012

Appl. No.:

13/447889

Inventors:

Christopher A. DiRubio - Webster NY, US
Charles H. Tabb - Penfiled NY, US
Michael A. Fayette - Penfield NY, US
John S. Facci - Webster NY, US
Paul F. Sawicki - Rochester NY, US
Thomas C. Keyes - Fairport NY, US
Edward W. Schnepf - Ontario NY, US
William R. Klimley - Webster NY, US

Assignee:

Xerox Corporation - Norwalk CT

International Classification:

G03G 15/16

US Classification:

399 66

Abstract:

Disclosed is a closed-loop control method and system to control the nip width and transfer field uniformity associated with an image marking apparatus. According to an exemplary embodiment, a closed-loop control system senses the uniformity of the image transfer field and applies forces to a transfer nip based on the sensed field to provide a more uniform field.

US Patent:

58037055, Sep 8, 1998

Filed:

Apr 3, 1997

Appl. No.:

8/832251

Inventors:

Thomas C. Keyes - Fairport NY

Assignee:

Xerox Corporation - Stamford CT

International Classification:

B65H 2920

US Classification:

4147939

Abstract:

In a disk type sheet inverting and stacking system with rotatable disk units with sheet transporting slots, in which printed sheets outputted by a reproduction system are sequentially fed into those slots to be inverted by rotation of the disk units and then released from the slots at a stacking position, the sheet transporting slots of the disk units are provided with a convolute sheet path formed by plural internal sheet corrugating protuberances extending transversely across the slot from opposite sides of the slot, spaced along the slot, to form a convolute sheet corrugating sheet path within the slot to automatically increase the retention force of the sheet within the slot in proportion to an increase in the thickness or stiffness of the sheet, without substantially increasing the resistance to lateral movement of the sheet within the slot. These protuberances have smoothly arcuate large diameter surfaces, with small surface angles in the direction of sheet insertion, to provide relatively low resistance to the insertion of a sheet into the slots.

US Patent:

59830530, Nov 9, 1999

Filed:

Apr 10, 1998

Appl. No.:

9/058615

Inventors:

Samuel P. Mordenga - Rochester NY
Thomas J. Behe - Webster NY
Thomas C. Keyes - Fairport NY
Dan F. Lockwood - Ontario NY
William B. Lindsey - Rochester NY
Michael J. Palencar - Webster NY

Assignee:

Xerox Corporation - Stamford CT

International Classification:

G03G 1508

US Classification:

399103

Abstract:

A noncontact seal for a donor roll in an electrophotographic printing machine. The seal is fixed in the developer housing and envelopes each end of the donor roll but does not contact the donor roll. The small space does not allow a positive airflow sufficient to cause toner particles to be emited from the developer housing so as to contaminate the other portions of the printing machine. The seal is made of a low friction material such as DELRIN. RTM. so that toner particles do not stick to the seal and cause a buildup that would be detrimental to the photoreceptive member.

US Patent:

52817938, Jan 25, 1994

Filed:

Oct 28, 1991

Appl. No.:

7/783581

Inventors:

Robert C. Gavin - Rochester NY
Thomas C. Keyes - Fairport NY

Assignee:

Xerox Corporation - Stamford CT

International Classification:

G03G 1520

US Classification:

219216

Abstract:

An apparatus for positioning a temperature sensing element in temperature sensing relationship with a moving object. The apparatus includes a base and also a resilient member, attached to the base, for supporting the sensing element. The apparatus further includes a mechanism for urging the sensing element toward the moving object. Moreover, the apparatus includes a mechanism, interposed between the resilient member and the moving object, for reducing frictional resistance between the apparatus and the moving object. The apparatus additionally includes a mechanism, removably attachable to the base, for securing the resistance reducing mechanism at a position interposed between the resilient member and the moving object.