John J Ricciardelli

US Patent:

7188934, Mar 13, 2007

Filed:

Oct 7, 2004

Appl. No.:

10/960599

Inventors:

Meng H. Lean - Santa Clara CA, US
John J. Ricciardelli - Poughkeepsie NY, US
Osman T. Polatkan - N. Haledon NJ, US
Michael J. Savino - Tappan NY, US
Armin R. Völkel - Mountain View CA, US

Assignee:

Xerox Corporation - Stamford CT

International Classification:

B41J 2/06

US Classification:

347 55, 347 56

Abstract:

Various systems and techniques are disclosed for stopping, selectively controlling, and optimizing a flow of particles in a flowing stream. The systems and techniques utilize a multi-electrode assembly and various voltage waveforms applied to those electrodes. The particles flow past or near the electrode assembly and their flow is controlled by the configuration and arrangement of the electrodes and the voltage waveforms applied thereto. An additional strategy for countering particle leakage flow is also described.

US Patent:

7204583, Apr 17, 2007

Filed:

Oct 7, 2004

Appl. No.:

10/960593

Inventors:

Meng H. Lean - Santa Clara CA, US
John J. Ricciardelli - Poughkeepsie NY, US
Osman T. Polatkan - N. Haledon NJ, US
Michael J. Savino - Tappan NY, US

Assignee:

Xerox Corporation - Stamford CT

International Classification:

B41J 2/04

US Classification:

347 54, 347 55

Abstract:

An electrostatic gating assembly utilizing at least three electrodes is disclosed. The assembly is particularly well suited for controlled administration of small particles.

US Patent:

7204584, Apr 17, 2007

Filed:

Oct 1, 2004

Appl. No.:

10/954207

Inventors:

Meng H. Lean - Santa Clara CA, US
John J. Ricciardelli - Poughkeepsie NY, US
Fred R. Stolfi - Shrub Oak NY, US
Osman T. Polatkan - North Haledon NJ, US
Michael J. Savino - Tappan NY, US

Assignee:

Xerox Corporation - Stamford CT

International Classification:

B41J 2/06

US Classification:

347 55

Abstract:

A transfer belt apparatus, system and method are provided to prevent image blooming. For example, an ink jet printing apparatus may include a grounded print head, a counter-electrode opposite the ground print head, and a bi-layer transfer belt provided between a print head and a counter-electrode and at least partially supported by two or more transfer bias rollers. A method may include applying a voltage between a print head and a counter-electrode to accelerate ink drops coming out of the print head toward a transfer belt, and evacuating charge accumulated on the transfer belt with a time constant smaller than a drop ejection frequency of the print head.

US Patent:

7217901, May 15, 2007

Filed:

Jul 2, 2003

Appl. No.:

10/612122

Inventors:

Meng H. Lean - Santa Clara CA, US
John J. Ricciardelli - Poughkeepsie NY, US
Osman Todd Polatkan - North Haledon NJ, US
Michael J. Savino - Tappan NY, US
Eric Peeters - Fremont CA, US
Scott Elrod - La Honda CA, US

Assignee:

Xerox Corporation - Stamford CT

International Classification:

B03C 7/00

US Classification:

2091271, 209 1, 209 121, 209131

Abstract:

A system for transporting and selectively sorting particles includes a first wall and a traveling wave grid extending along the first wall. The system includes a second wall having a passage extending therethrough and a gate operatively associated with the passage. A controller is adapted to output a multi-phase electrical signal. The controller is in communication with the traveling wave grid and the gate. A method of using the system is also provided.

US Patent:

7293862, Nov 13, 2007

Filed:

Oct 29, 2004

Appl. No.:

10/977216

Inventors:

Meng H. Lean - Santa Clara CA, US
Osman T. Polatkan - N. Haledon NJ, US
John J. Ricciardelli - Poughkeepsie NY, US
Michael J. Savino - Tappan NY, US

Assignee:

Xerox Corporation - Stamford CT

International Classification:

B41J 2/175
B41J 2/06

US Classification:

347 85, 347 55

Abstract:

Various particle reservoir systems such as used in printing systems are described which utilize one or more traveling wave grids within a reservoir to selectively transport particles to a reservoir exit. The traveling wave grids serve to transport the particles by use of moving electrostatic fields that travel across the grids. The reservoir systems are adapted for use with a variety of print head configurations.

US Patent:

7304258, Dec 4, 2007

Filed:

Apr 2, 2007

Appl. No.:

11/731971

Inventors:

Meng H. Lean - Santa Clara CA, US
John J. Ricciardelli - Poughkeepsie NY, US
Osman Todd Polatkan - North Haledon NJ, US
Michael J. Savino - Tappan NY, US
Eric Peeters - Fremont CA, US
Scott Elrod - La Honda CA, US

Assignee:

Xerox Corporation - Norwalk CT

International Classification:

B03C 7/00

US Classification:

2091271, 209 1, 209 121, 209131, 204643

Abstract:

A system for transporting and selectively sorting particles includes a first wall and a traveling wave grid extending along the first wall. The system includes a second wall having a passage extending therethrough and a gate operatively associated with the passage. A controller is adapted to output a multi-phase electrical signal. The controller is in communication with the traveling wave grid and the gate. A method of using the system is also provided.

US Patent:

8020975, Sep 20, 2011

Filed:

Jun 28, 2005

Appl. No.:

11/167951

Inventors:

Meng H. Lean - Santa Clara CA, US
John J. Ricciardelli - Poughkeepsie NY, US
Michael J. Savino - Tappan NY, US
Osman T. Polatkan - North Haledon NJ, US
Fred R. Stolfi - Shrub Oak NY, US
Eric Lindale - Kennett Square PA, US

Assignee:

Xerox Corporation - Norwalk CT

International Classification:

B41J 2/02
B41J 2/215
B41J 2/18
B41J 2/17
B41J 2/415

US Classification:

347 73, 347 83, 347 89, 347 97, 347120

Abstract:

Various configurations and applications of traveling wave grids are disclosed. Systems for transporting particles to feed apertures, and/or for transporting particles from storage reservoirs are described. The systems are particularly useful for transporting toner particles in printing systems.

US Patent:

56897634, Nov 18, 1997

Filed:

Sep 16, 1996

Appl. No.:

8/715268

Inventors:

Darrel R. Rathbun - Ontario NY
John J. Ricciardelli - Poughkeepsie NY
Gerald A. Domoto - Briarcliff Manor NY

Assignee:

Xerox Corporation - Stamford

International Classification:

G03G 1506

US Classification:

399 53

Abstract:

A sensing system for a print development system of a printing system in which a print is developed with developer material and development of the print varies as a function of both a first parameter and a second parameter is provided. The development system includes a capacitance and the sensing system, which measures a first value varying as a function of the first parameter and a second value varying as a function of the second parameter, includes a sensing subsystem for measuring an output by reference to the capacitance; and a signal development subsystem, responsive to the sensing system, for developing, from the output, both a first signal and a second signal with the first signal corresponding to the first value and the second signal corresponding to the second value.