公开(公告)号：CA3020758A1

公开(公告)日：2019-04-17

申请号：CA3020758

申请日：2018-10-15

Applicant: XEROX CORP

Inventor： PRIEBE ELIZABETH K ,  GIANNETTO BRIAN S ,  SAMBHY VARUN ,  MOORE BRIAN E ,  DOMBROSKI THOMAS C ,  MORALES-TIRADO JUAN A

IPC: G03G9/113

Abstract: A carrier including a carrier core; and a coating thereover; wherein the coating comprises a polymer having a low molecular weight of from about 100,000 to about 300,000 g/mole and a particle size of from about 0.05 to about 0.6 micrometer. A developer including a toner; and a carrier; wherein the carrier comprises a carrier core; and a coating thereover; wherein the coating comprises a polymer having a low molecular weight of from about 100,000 to about 300,000 g/mole and a particle size of from about 0.05 to about 0.6 micrometer. A process for preparing a carrier including providing a carrier core; and disposing a polymer coating thereover by combining the carrier core and the polymer coating in a mixing device; optionally, fusing the coating to the carrier core; wherein the coating comprises a polymer having a low molecular weight of from about 100,000 to about 300,000 g/mole and a particle size of from about 0.05 to about 0.6 micrometer.

公开(公告)号：BRPI0403778A

公开(公告)日：2005-06-07

申请号：BRPI0403778

申请日：2004-09-08

Applicant: XEROX CORP

Inventor： KUMAR SAMIR ,  BUDNY THOMAS J ,  GIANNETTO BRIAN S ,  MOORE BRIAN E ,  SILENCE SCOTT M ,  DUGGAN MICHAEL J ,  KELLY BERNARD A

IPC: G03G9/10 ,  G03G9/113

Abstract: Carrier comprised of a core, a polymer coating, and wherein said coating contains a conductive polypyrrole contained in a carbon black matrix; or a polyaniline contained in a carbon black matrix.

公开(公告)号：CA2888047C

公开(公告)日：2018-02-27

申请号：CA2888047

申请日：2015-04-13

Applicant: XEROX CORP

Inventor： KELLY BERNARD A ,  DOMBROSKI THOMAS C ,  GIANNETTO BRIAN S ,  MOORE BRIAN E ,  SPENCER LLOYD D ,  VEREGIN RICHARD P N ,  MOFFAT KAREN A ,  ENRIGHT THOMAS E ,  FARRUGIA VALERIE M ,  HAWKINS MICHAEL S ,  BASHIR WAFA F

IPC: G03G9/113

Abstract: Disclosed is a carrier suitable for use with an electrophotographic developer and an electrophotographic developer containing the carrier. In particular, the carrier is powder coated and comprises a copolymer of cyclohexylmethacrylate and dimethylaminoethylmethacrylate.

公开(公告)号：DE60127913T2

公开(公告)日：2007-09-06

申请号：DE60127913

申请日：2001-09-18

Applicant: XEROX CORP

Inventor： SILENCE SCOTT M ,  GUTMAN EDWARD J ,  PROPER JAMES M ,  REITZE FRANK ,  GIANNETTO BRIAN S ,  MOORE BRIAN E ,  CHUNG JOO T ,  STENZEL JAMES G ,  DEBARR JEFFREY L ,  DEYOUNG MORRIS M JR

IPC: G03G9/097 ,  G03G9/08 ,  G03G9/087 ,  G03G9/10 ,  G03G9/107 ,  G03G9/113

Abstract: A toner of toner particles containing at least one binder, at least one colorant, and an external additive package comprised of zinc stearate and at least one of silicon dioxide or titanium dioxide, wherein the amount of zinc stearate is limited to about 0.10 percent by weight or less of the toner. It has been surprisingly found that when the amount of zinc stearate is so limited, a developer formed from the toner exhibits excellent triboelectric charging and stability and excellent developer flow. When the developer is used in a magnetic brush development system, consistent, high quality copy images are formed substantially without any depletion defects over time.

公开(公告)号：DE102016204646A1

公开(公告)日：2016-10-06

申请号：DE102016204646

申请日：2016-03-21

Applicant: XEROX CORP

Inventor： ZONA MICHAEL F ,  GIANNETTO BRIAN S ,  KELLY BERNARD A ,  MOORE BRIAN E ,  MORALES-TIRADO JUAN A ,  KUMAR SAMIR ,  PRIEBE ELIZABETH K

IPC: G03G9/10 ,  G03G9/08

Abstract: Zweikomponenten-Entwicklungssystem, das eine Vielzahl von Tonerpartikeln umfasst, welche einen Farbstoff enthalten und eine Vielzahl von Tonerträgerpartikeln, die einen magnetischen Trägerkern mit einem D50-Durchmesser in einem Bereich von ungefähr 30 Mikrometer bis ungefähr 40 Mikrometer enthalten und eine Tensid-Polymer-Beschichtung, wobei die Beschichtung in einer Menge in einem Bereich von ungefähr 0,5 Masseprozent bis ungefähr 1,5 Masseprozent des Tonerträgerpartikels vorhanden ist.

公开(公告)号：DE102015207068A1

公开(公告)日：2015-11-05

申请号：DE102015207068

申请日：2015-04-17

Applicant: XEROX CORP

Inventor： KELLY BERNARD A ,  DOMBROSKI THOMAS C ,  GIANNETTO BRIAN S ,  MOORE BRIAN E ,  SPENCER LLOYD D ,  VEREGIN RICHARD P N ,  MOFFAT KAREN A ,  ENRIGHT THOMAS E ,  FARRUGIA VALERIE M ,  HAWKINS MICHAEL S ,  BASHIR WAFA F

IPC: G03G9/10

Abstract: Es wird ein Träger offenbart, der zur Verwendung mit einem elektrophotographischen Entwickler geeignet ist, sowie ein elektrophotographischer Entwickler, der den Träger enthält. Insbesondere ist der Träger pulverbeschichtet und umfasst ein Copolymer aus Cyclohexylmethacrylat und Dimethylaminoethylmethacrylat.

公开(公告)号：BRPI0700474A

公开(公告)日：2007-11-06

申请号：BRPI0700474

申请日：2007-02-28

Applicant: XEROX CORP

Inventor： PATTISON CHRISTOPHER M ,  DOMBROSKI THOMAS C ,  GIANNETTO BRIAN S ,  KUMAR SAMIR ,  YOUNG EUGENE F ,  JACKSON MARK S ,  MANIAR DEEPAK R

IPC: G03G9/113 ,  G03G9/08

Abstract: Carrier core is coated with a coating containing polymer formed in the presence of a surfactant and conductive particles coated with conductive polymer. The carrier may be formed by forming polymer particles by polymerization in the presence of a surfactant; dry-mixing carrier cores with a powder comprising the polymer particles and conductive particles coated with conductive polymer; and heating the mixture to fuse the powder to the surface of the cores.

公开(公告)号：DE60127913D1

公开(公告)日：2007-05-31

申请号：DE60127913

申请日：2001-09-18

Applicant: XEROX CORP

Inventor： SILENCE SCOTT M ,  GUTMAN EDWARD J ,  PROPER JAMES M ,  REITZE FRANK ,  GIANNETTO BRIAN S ,  MOORE BRIAN E ,  CHUNG JOO T ,  STENZEL JAMES G ,  DEBARR JEFFREY L ,  DEYOUNG MORRIS M JR

IPC: G03G9/097 ,  G03G9/08 ,  G03G9/087 ,  G03G9/10 ,  G03G9/107 ,  G03G9/113

Abstract: A toner of toner particles containing at least one binder, at least one colorant, and an external additive package comprised of zinc stearate and at least one of silicon dioxide or titanium dioxide, wherein the amount of zinc stearate is limited to about 0.10 percent by weight or less of the toner. It has been surprisingly found that when the amount of zinc stearate is so limited, a developer formed from the toner exhibits excellent triboelectric charging and stability and excellent developer flow. When the developer is used in a magnetic brush development system, consistent, high quality copy images are formed substantially without any depletion defects over time.

公开(公告)号：CA2888047A1

公开(公告)日：2015-11-01

申请号：CA2888047

申请日：2015-04-13

Applicant: XEROX CORP

Inventor： KELLY BERNARD A ,  DOMBROSKI THOMAS C ,  GIANNETTO BRIAN S ,  MOORE BRIAN E ,  SPENCER LLOYD D ,  VEREGIN RICHARD P N ,  MOFFAT KAREN A ,  ENRIGHT THOMAS E ,  FARRUGIA VALERIE M ,  HAWKINS MICHAEL S ,  BASHIR WAFA F

IPC: G03G9/113

Abstract: Disclosed is a carrier suitable for use with an electrophotographic developer and an electrophotographic developer containing the carrier. In particular, the carrier is powder coated and comprises a copolymer of cyclohexylmethacrylate and dimethylaminoethylmethacrylate.

公开(公告)号：BRPI0700475A

公开(公告)日：2007-11-06

申请号：BRPI0700475

申请日：2007-02-28

Applicant: XEROX CORP

Inventor： PATTISON CHRISTOPHER M ,  MANIAR DEEPAK R ,  DROMBROSKI THOMAS C ,  GIANNETTO BRIAN S ,  KUMAR SAMIR

IPC: G03G9/113

Abstract: The carrier core is coated with a conductive coating that is more conductive than the core. This coating contains conductive particles coated with conductive polymer.