公开(公告)号：CA2025913A1

公开(公告)日：1991-05-01

申请号：CA2025913

申请日：1990-09-21

Applicant: XEROX CORP

Inventor： FOLKINS JEFFREY J ,  SCHNEIDER ERIC J ,  SCHRAM JOSEPH G

IPC: G03G15/09 ,  G03G15/08

Abstract: An apparatus for developing a latent image recorded on a photoconductive member in an electrophotographic printing machine having a reservoir (64) for storing a supply of developer material and a magnetic brush roll (70) for transporting material from the reservoir to each of two donor rolls (76, 78). The developer material (66) comprises carrier granules and toner particles. The donor rolls (76, 78) receive toner particles from the magnetic brush roll (70) and deliver the toner particles to the photoconductive member (10) at spaced locations in the direction of movement of the photoconductive member to develop the latent image recorded thereon. Electrode members (86, 88) are positioned between each of the donor rolls and the photoconductive surface.

公开(公告)号：CA1203831A

公开(公告)日：1986-04-29

申请号：CA428580

申请日：1983-05-20

Applicant: XEROX CORP

Inventor： FOLKINS JEFFREY J

IPC: G03G15/06 ,  G03G15/08 ,  G03G15/09

Abstract: An apparatus in which an image region recorded on a photoconductive surface is developed with a dry developer material. A transport moves the dry material closely adjacent to the photoconductive surface. The charge induced on the transport by the charge on the photoconductive surface is controlled to electrically bias the transport to a potential intermediate the potential of the image region and non-image region of the photoconductive surface.

公开(公告)号：DE102017202101A1

公开(公告)日：2017-08-24

申请号：DE102017202101

申请日：2017-02-09

Applicant: XEROX CORP

Inventor： FOLKINS JEFFREY J ,  MCCONVILLE PAUL J ,  CONDELLO ANTHONY S

IPC: B29C64/393 ,  B29C64/106 ,  B29C64/336 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: Ein Verfahren zur Fertigung eines 3D-Objekts betätigt Komponenten in einem additiven Fertigungssystem in Bezug auf Quantifizierungen, die für Eigenschaften unterschiedlicher Materialien in einer gleichen Schicht identifiziert wurden. Das Verfahren ermöglicht eine Kompensation der zu bildenden Schicht für die Unterschiede in den Quantifizierungen der Eigenschaften der beiden Materialien.

公开(公告)号：BR102012017715A2

公开(公告)日：2017-01-24

申请号：BR102012017715

申请日：2012-07-17

Applicant: XEROX CORP

Inventor： RIZZOLO CHARLES D ,  MANTELL DAVID A ,  MIZES HOWARD A ,  FOLKINS JEFFREY J ,  SHEFLIN JOSEPH C ,  MONGEON MICHAEL C ,  LEVY MICHAEL J

IPC: A01B1/00

Abstract: resumo patente de invenção: método e sistema para alinhar cabeças de impressora que ejetam tinta transparente em uma impressora de jato de tinta. a presente invenção refere-se a um método que permite um operador detectar um desalinhamento das cabeças de impressora que ejetam tinta transparente em uma impressora de jato de tinta. o método imprime um primeiro padrão de teste com uma primeira cor de tinta e então imprime um segundo padrão de teste com tinta transparente no topo do primeiro padrão de teste. a tinta do primeiro e do segundo padrão de teste é então dispersada para permitir que a tinta transparente seja dispersada dentro de espaços intersticiais na tinta da primeira cor. um operador é então capaz de detectar a relação espacial de marcas predeterminadas no segundo padrão de teste para marcas predeterminadas no primeiro padrão de teste. as marcas pre determinadas do primeiro e do segundo padrão de teste estão dispostas para permitir um operador detectar uma distância de desalinhamento e a impressora de jato de tinta utilização distância de desalinhamento inserida pelo operador para ajustar o alinhamento das cabeças de impressora que ejetam a tinta transparente.

公开(公告)号：DE102015218614A1

公开(公告)日：2016-04-14

申请号：DE102015218614

申请日：2015-09-28

Applicant: XEROX CORP

Inventor： MIZES HOWARD A ,  CONROW BRIAN R ,  DONALDSON PATRICIA J ,  FOLKINS JEFFREY J ,  HOSIER PAUL A ,  KLECKNER ROBERT J

IPC: B29C67/00 ,  B33Y10/00 ,  B33Y30/00

Abstract: Ein 3D-Objektdrucker stößt Tropfen eines Werkstoffs aus einer Vielzahl von Düsen in einem ersten Druckkopf aus, um ein Objekt auf einem ersten Bereich eines Elements zu bilden, und stößt Tropfen eines Stützmaterials aus einer Vielzahl von Düsen in einem zweiten Druckkopf aus, um das Objekt auf dem ersten Bereich des Elements zu stützen. Der zweite Druckkopf stößt Tropfen des Stützmaterials auf einen zweiten Bereich des Elements aus, der vom ersten Bereich getrennt ist, um eine Substratschicht zu bilden. Der erste Druckkopf stößt Tropfen des Werkstoffs auf die Substratschicht aus, um ein gedrucktes Testmuster zu bilden. Ein Bildsensor generiert Bilddaten des gedruckten Testmusters, um eine defekte Düse im ersten Druckkopf zu erkennen.

公开(公告)号：GB2480376B

公开(公告)日：2015-12-23

申请号：GB201107830

申请日：2011-05-11

Applicant: XEROX CORP

Inventor： MIZES HOWARD A ,  VITURRO R ENRIQUE ,  MANTELL DAVID A ,  FOLKINS JEFFREY J

IPC: B41J2/21 ,  B41J29/393

公开(公告)号：DE69817709D1

公开(公告)日：2003-10-09

申请号：DE69817709

申请日：1998-07-17

Applicant: XEROX CORP

Inventor： FOLKINS JEFFREY J ,  SHAHIN MICHAEL A ,  SMITH CRAIG A ,  PARISI MICHAEL A ,  MESTHA LINGAPPA K

IPC: B41M3/14 ,  G03G21/04 ,  H04N1/00

Abstract: A method comprising: providing a facility with at least one controlled access electronic printing machine; printing original documents with said controlled access electronic printing machine, wherein printed images formed thereby arise from marking materials containing at least one photoactive additive; equipping all uncontrolled access reprographic devices within said facility with a secure illumination source capable of exposing an object document with sufficient intensity to activate said photoactive additive; and illuminating said object document with said secure illumination source of said uncontrolled access reprographic device, wherein said object documents having original document images printed thereon cannot be copied or scanned in a normal copy or scan illumination interval.

公开(公告)号：DE69817122D1

公开(公告)日：2003-09-18

申请号：DE69817122

申请日：1998-11-17

Applicant: XEROX CORP

Inventor： FOLKINS JEFFREY J ,  CASTELLI VITTORIO R

IPC: G03G15/00 ,  G03G15/01 ,  H04N1/50

Abstract: This invention provides for duplex use of densitometers. An image is produced on a substrate, that substrate is brought back through the transfer station in a duplex fashion (that is, the substrate is inverted), and a sensor senses the image on the substrate. Beneficially, the sensor senses one or more parameters such as color registration, color occlusion/interference, black separation in color REaD printing, colorimetry, and the overall transfer and fusing process; and a printing process is controlled based on the sensed parameters.

公开(公告)号：DE69814534D1

公开(公告)日：2003-06-18

申请号：DE69814534

申请日：1998-06-30

Applicant: XEROX CORP

Inventor： FOLKINS JEFFREY J

IPC: B41J2/525 ,  G03G15/01 ,  G03G15/02

Abstract: A color REaD IOI system in which the photoreceptor (10) is DC only recharged between the development of the first toner layer and the subsequent exposure and development of the following toner layer. To assist the DC only recharge by device 20 the photoreceptor (10) and the first toner layer are beneficially erased prior to recharge. Beneficially, the photoreceptor (10) is subsequent recharged prior to exposures for the other toner layers using a charging scheme that includes an AC charging device (22).

公开(公告)号：DE69622794T2

公开(公告)日：2003-04-10

申请号：DE69622794

申请日：1996-05-24

Applicant: XEROX CORP

Inventor： FOLKINS JEFFREY J

IPC: B41J2/525 ,  G03G15/00 ,  G03G15/01 ,  H04N1/113 ,  H04N1/29 ,  H04N1/46 ,  H04N1/60

Abstract: Disclosed is a color printer including an image bearing member (10) having an imageable surface (11) for movement along a preselected path, at least a first imaging assembly (26,30) for forming sets of multiple black toner registration marks on different areas of the imageable surface, and for forming second sets of multiple non-black toner registration marks corresponding respectively to black marks in each set of the first sets of black marks so as to create a series of sets of multicolor registration marks. Each of the second sets is formed thus in accordance with a predetermined different condition of image misregistration relative to the corresponding first set of black toner marks. The color printer also includes a light source (142) for producing a wide area beam (172) to illuminate each set of the series of sets of multicolor marks, and a wide area beam (WAB) sensor (146) for measuring scattered or diffuse light (174) reflected from each set of the illuminated series of sets of multicolor marks, and for producing an actual light reflectance measurement value (Ca) from each such illuminated set. The printer further includes a comparing device for determining a degree of actual image misregistration by comparing each of the actual light reflectance measurement values with a stored predetermined registration offset value (Cp) corresponding to a predetermined condition of image misregistration for each illuminated set of multicolor marks. Mechanisms (137,138,139) are included in the printer for adjusting an imaging parameter of an imaging assembly responsively to the determined condition of actual misregistration so as to correct for the determined actual misregistration.