Paul E Julien, Age 9623 Hidden Creek Cir, Pittsford, NY 14534

7157200, Jan 2, 2007

May 6, 2004

10/839293

Mary L. Mc Stravick - Fairport NY, US
Paul C. Julien - Webster NY, US
Sue E. Blaszak - Fairport NY, US

Xerox Corporation - Stamford CT

G03G 9/087

4301086, 4301093, 4301087, 43011141

A black toner of toner particles including at least one binder, at least one black colorant, and a package of external additives is described, wherein the at least one binder includes a styrene acrylate binder and wherein the external additives include each of a first silica having an average particle size of from about 35 to about 45 nm, a second silica having an average particle size of from about 135 to about 160 nm, and a titania having an average particle size of from about 35 to about 45 nm. Also described is a developer that includes the black toner and carrier particles comprising a core of ferrite coated with a coating comprising a polymethyl methacrylate polymer and fluoro-copolymer, carbon black and melamine beads. The black toner and developer are preferably used in a semiconductive magnetic brush development system.

7206536, Apr 17, 2007

Mar 29, 2005

11/093229

Paul C. Julien - Webster NY, US

Xerox Corporation - Stamford CT

G03G 15/00

399110

A xerographic printing system includes a group of marking modules which apply a marking medium to print media, at least one of the marking modules being a custom marking module. A control system is configured for being operatively linked with marking modules. The printing system has a first mode of operation in which a first plurality of the group of marking modules is operatively linked to the control system and a second mode of operation in which a second plurality of the marking modules is operatively linked to the control system, the second plurality of marking modules including the at least one custom marking module.

7224917, May 29, 2007

Mar 25, 2005

11/090727

Paul C. Julien - Webster NY, US
Daniel M. Bray - Rochester NY, US
Aaron M. Burry - West Henrietta NY, US

Xerox Corporation - Stamford CT

G03G 15/08

399 53, 399291

An improved development system for an electrophotographic system includes a reload defect detector for generating a signal corresponding to a potential for reload defect detected in an image to be developed by an electrophotographic system; and a magnetic roll speed selector for selecting a rotational speed for a magnetic roll in a development system of the electrophotographic system, the selected rotational speed corresponding to the generated reload defect potential signal. The speed of the magnetic roll is selected to be a lower speed in response to the potential for reload defect being relatively low. The slower rotation of the magnetic roll prolongs the life of the developer and extends the operational life of the development system before corrective action is needed.

7286778, Oct 23, 2007

Jun 30, 2005

11/172301

Aaron M. Burry - Henrietta NY, US
Daniel M. Bray - Rochester NY, US
Paul C. Julien - Webster NY, US

Xerox Corporation - Stamford CT

G03G 15/08

399 53

A development system for an electrophotographic system including: a magnetic brush roll speed selector for selecting a rotational speed for a magnetic brush roll in a development system of the electrophotographic system; and a controller, responsive to the rotational speed, for adjusting xerographic actuators to maintain DMA within a predefined range.

7305198, Dec 4, 2007

Mar 31, 2005

11/095872

Paul C. Julien - Webster NY, US

Xerox Corporation - Norwalk CT

G03G 15/20

399 69, 399335, 399337, 399400

A printing system includes a plurality of marking engines for applying images to print media. An output destination is configured for receiving imaged print media from the plurality of marking engines. A print media transport system conveys print media between the marking engines and the output destination. A control system determines whether the marking engines are printing images of consistent or acceptable gloss and, where the marking engines are determined not to be consistent or providing acceptable gloss, adjusts at least one of the plurality of marking engines to reduce a variation in gloss between images applied by the marking engines.

7379684, May 27, 2008

Jun 30, 2006

11/428139

Paul C Julien - Webster NY, US

Xerox Corporation - Norwalk CT

G03G 15/00
G03G 15/16

399 49, 399 66

Optimization of transfer settings for a given paper and environmental condition is achieved by running a series of prints with varying settings of a transfer parameter such as voltage or current. The mass remaining on the intermediate belt after transfer is monitored for each of the prints. This may be achieved using the same sensor used to monitor and control the developed mass on the intermediate transfer member, such as a transfer belt. A suitable sensor is an Extended Toner Area Coverage (ETAC) mass sensor. Because the control is based on actual conditions for a given paper and environment, it can ensure optimum copy quality over a wide range of papers and conditions, while enabling the minimum target mass per unit area to assure the proper density.

7639970, Dec 29, 2009

Oct 17, 2006

11/581832

Aaron M. Burry - W. Henrietta NY, US
Daniel M. Bray - Rochester NY, US
Paul C. Julien - Webster NY, US
Peter Paul - Webster NY, US
Palghat S. Ramesh - Pittsford NY, US

Xerox Corporation - Norwalk CT

G03G 15/08

399236, 399 53, 399 55, 399 60

A control system for use with a development process including at least one magnetic roll with a settable speed is provided. The controller is directly or indirectly responsive to a reload feedback signal, which signal is generated in response to changes in output reload performance of the development process. In the case of direct responsiveness, the controller uses one or more reload feedback signals to facilitate magnetic roll speed setting. In the case of indirect responsiveness, the controller uses a reload sensitivity signal, which reload sensitivity signal varies as a function of input digital image content and output reload performance feedback, to facilitate magnetic roll speed setting.

7715742, May 11, 2010

Dec 22, 2006

11/644276

Aaron Michael Burry - West Henrietta NY, US
Christopher Auguste DiRubio - Webster NY, US
Paul Charles Julien - Webster NY, US
Eric Scott Hamby - Fairport NY, US
Palghat Ramesh - Pittsford NY, US
Michael F. Zona - Holley NY, US
William C. Dean - Webster NY, US

Xerox Corporation - Norwalk CT

G03G 15/02
G03G 15/00

399 50, 399 48

Xerographic photoreceptor life is improved while maintaining output print quality by adjusting the AC charging actuator of a xerographic machine to a point at which photoconductor life is optimized while maintaining output print quality. Where the actuator is voltage, the actuator is set a predetermined amount above the knee voltage of the photoreceptor surface potential versus peak-to-peak voltage curve, which is determined during operation of the machine. Instead of determining the knee voltage, calibration sheets can be generated for various values of the actuator, the best sheet with the least possible actuator value is selected, and the AC charging actuator is set to the value corresponding to the best sheet. The sheets can be evaluated by a user, or an optical array sensor can be used to scan the sheets so that the controller can compare the sheets to stored criteria to automatically select the best sheet and set the actuator. Alternatively, the optical array sensor can scan calibration images directly from the intermediate transfer belt or other image bearing member, thus eliminating the use of paper for calibration.