Mark A Cellura

US Patent:

6338544, Jan 15, 2002

Filed:

Jun 29, 1999

Appl. No.:

09/342535

Inventors:

Donald J. Drake - Rochester NY
David Mantell - Rochester NY
Mark Cellura - Webster NY
Juan Becerra - Webster NY

Assignee:

Xerox Corporation - Stamford CT

International Classification:

B41J 2145

US Classification:

347 41, 347 9, 347 12

Abstract:

An apparatus and method for forming an image with a print head that fires groups of drops of fluid results in a reduction in stitch joint error. The stitch joint error is reduced by changing the firing sequence of the nozzles of adjacent dies of the print head.

US Patent:

6540315, Apr 1, 2003

Filed:

Jan 16, 2002

Appl. No.:

10/046195

Inventors:

Peter Nystrom - Webster NY
Mark Cellura - Webster NY
John Walsh - Rochester NY

Assignee:

Xerox Corporation - Stamford CT

International Classification:

B41J 2938

US Classification:

347 12

Abstract:

System and methods for using a fluid ejection system to distribute fluid drop density of a region between at least two overlapping swaths having pixels on a receiving medium. Using the method, overlapping swaths are stitched together by distributing a fluid ejection pattern between the overlapping swaths within the overlapped region. Because small drops of fluid can be distributed within a single region, the fluid ejection pattern can be controlled and intermediate density regions can be created by distributing the fluid of drops within a region between two fluid ejector heads or between two swaths of the same fluid ejector head. The distribution can be linear or non-linear. Furthermore, overlapping swaths are stitched together by randomly varying a stitch location within the overlapped region. In this case, a stitch location is randomly varied in the slow scan direction.

US Patent:

6825866, Nov 30, 2004

Filed:

Jan 10, 2002

Appl. No.:

10/044771

Inventors:

Peter I. Majewicz - Emmett ID
Mark A. Cellura - Webster NY

Assignee:

Xerox Corporation - Stamford CT

International Classification:

B41J 245

US Classification:

347238, 347257, 257 88, 438106, 438107

Abstract:

A method and apparatus for forming a high resolution LED array. A plurality of LED chips are provided to form the LED array. Each LED chip has an electrode that is inward biased at each end of the chip by a predetermined amount. The size of each LED chip is removed by reducing, at each end of each chip, an amount of chip material substantially equal to the predetermined amount. The array is formed by placing each chip end to end with a gap between each chip, wherein the gap is suitably large for placement accuracies and a consistent pitch of 21. 2 m is maintained between each LED on each chip.

US Patent:

7123854, Oct 17, 2006

Filed:

May 10, 2005

Appl. No.:

11/125431

Inventors:

Mark A. Cellura - Webster NY, US
Elliott Eklund - Penfield NY, US
Scott J. Phillips - West Henrietta NY, US

Assignee:

Xerox Corporation - Stamford CT

International Classification:

G03G 21/20

US Classification:

399 92, 399 93, 399 98, 399 99, 399355

Abstract:

Embodiments herein comprise a compact dust abatement apparatus that includes at least one manifold shaped to fit next to a belt or drum of a printing engine, at least one blower/fan positioned within the manifold, and at least one air duct connected to the manifold. The manifold has a vacuum opening adjacent the belt or drum and an exit opening where the air duct connects to the manifold. The blower is positioned inside the manifold, between the vacuum opening and the exit opening, such that the blower draws air and particles from the vacuum opening toward the exit opening. Thus, the blower creates a vacuum at the vacuum opening. The air duct directs air and particles from the manifold to a location away from the sensitive components. The inclusion of the blower inside the vacuum manifold provides for compactness without sacrificing performance.

US Patent:

7506975, Mar 24, 2009

Filed:

Jun 28, 2005

Appl. No.:

11/167133

Inventors:

Mark A. Cellura - Webster NY, US
Richard P. Germain - Webster NY, US

Assignee:

Xerox Corporation - Norwalk CT

International Classification:

B41J 2/01

US Classification:

347103, 347 25, 347 30, 347 55, 347102, 347104, 399 98, 399323

Abstract:

A printing medium baffle for protecting printheads printing on an image transfer member from particulates associated with the printing medium. The baffle may have one or more adhesive surfaces.

US Patent:

7512357, Mar 31, 2009

Filed:

Aug 22, 2005

Appl. No.:

11/208820

Inventors:

Mark A. Cellura - Webster NY, US
Donald J. Drake - Rochester NY, US
Elliott A. Eklund - Penfield NY, US
Richard P. Germain - Webster NY, US
Scott J. Phillips - W. Henrietta NY, US
Robert M. Rottman - Ontario NY, US
Elias Panides - Whitestone NY, US
Barry D. Reeves - Lake Oswego OR, US

Assignee:

Xerox Corporation - Norwalk CT

International Classification:

G03G 15/14

US Classification:

399 93

Abstract:

An image forming device includes marking material dispensers for disposing an image on an imaging drum surface. The image forming device further includes plural particle removal devices comprising first and second particle removal devices coupled to a vacuum source. The first particle removal device includes a first vacuum port positioned as close as possible to an included image transfer site. The second particle removal device includes a second vacuum port positioned as close as possible to the marking material dispensers. The first and second vacuum ports are positioned proximate to the imaging drum surface to provide respective first and second air flows.

US Patent:

7520588, Apr 21, 2009

Filed:

Dec 23, 2005

Appl. No.:

11/318284

Inventors:

Gerald A. Domoto - Briarcliff Manor NY, US
Elias Panides - Whitestone NY, US
Mark A. Cellura - Webster NY, US
Elliott A. Eklund - Penfield NY, US
Scott J. Phillips - West Henrietta NY, US

International Classification:

B41J 2/165

US Classification:

347 29

Abstract:

An apparatus is used with an ink jet print head in an ink jet printer. The apparatus includes a print head protector that surrounds a print head. A substantially continuous slot is provided along a perimeter of the bracket and a filter is located in the substantially continuous slot. An inlet in fluid communication with the substantially continuous slot enables a positive pressure air supply to be coupled to the inlet. The air entering the inlet flows through the filter in the slot and the filtered air flows outwardly away from the print head.

US Patent:

7571996, Aug 11, 2009

Filed:

Aug 10, 2006

Appl. No.:

11/502283

Inventors:

Gerald A. Domoto - Briarcliff Manor NY, US
Elias Panides - Whitestone NY, US
Mark Anthony Cellura - Webster NY, US
Elliot Allan Eklund - Penfield NY, US
Scott J. Phillips - West Henrietta NY, US

Assignee:

Xerox Corporation - Norwalk CT

International Classification:

B41J 2/175
B41J 2/165

US Classification:

347 88, 347 29

Abstract:

An apparatus in an ink jet printer reduces the risk of clogged nozzles in ink jet printing machines by providing a negative pressure area in the vicinity of a localized high shear stress region that is located about a print head perimeter. The apparatus includes a print head protector substantially surrounds a print head, the protector having a first substantially continuous slot along a portion of a length of the protector that is upstream of the print head and a second substantially continuous slot along a portion of a length of the protector that is upstream of the first substantially continuous slot, an inlet in fluid communication with the first substantially continuous slot, the inlet enables a positive pressure air supply to be coupled to the first substantially continuous slot so air entering the inlet flows through the first slot to displace debris from media approaching the print head, and an outlet in fluid communication with the second substantially continuous slot, the outlet enables a negative pressure source to be coupled to the second substantially continuous slot so displaced debris flows into the second substantially continuous slot and out through the outlet for removal from the ink printing machine in which the print head is located.