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公开(公告)号：CA2594113C
公开(公告)日：2010-05-04
申请号：CA2594113
申请日：2007-07-19
Applicant: XEROX CORP
Inventor： HAYS DAN A , THAYER BRUCE E
Abstract: A cleaning blade is used to clean a photoreceptor surface in an electrophotographic marking system. The elastomeric blade contains an amount of carbon nanotubes that improves the mechanical, electrical and thermal properties for cleaning the photoreceptor surface. The nanotubes can be disposed throughout the elastomer in the blade or can be dispersed only at a tip of the blade or only in the bottom section of the blade.
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公开(公告)号：DE602007002752D1
公开(公告)日：2009-11-26
申请号：DE602007002752
申请日：2007-07-19
Applicant: XEROX CORP
Inventor： HAYS DAN A , GRABOWSKI EDWARD F , KUMAR SAMIR
IPC: G03G5/10
Abstract: An imaging belt comprises a substrate layer (20), an outer image layer (30) and an inner anti-curl backing layer (10). The inner anti-curl backing layer (10), in turn, includes one or more carbon nanotubes (5) disposed therein, together with an exposed backing layer surface. An image forming device includes the imaging belt. The image forming device is arranged to conductively couple the backing layer surface to an included ground source by means of one or more included conducting backer bars, one or more included grounding brushes, or any combination of included conducting backer bars and grounding brushes.
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公开(公告)号：DE69723673T2
公开(公告)日：2004-01-29
申请号：DE69723673
申请日：1997-05-07
Applicant: XEROX CORP
Inventor： EKLUND ELLIOTT A , FLETCHER GERALD M , HAYS DAN A
IPC: G03G15/08
Abstract: An apparatus for developing a latent image recorded on a surface, including a housing defining a chamber storing a supply of developer material including toner and carrier beads. A toner donor member is spaced from the surface and is adapted to transport toner to a region opposed from the surface. A magnetic roller conveys the toner material in the chamber of the housing onto the donor member. An electrode member is spaced near the surface of a donor roll, the electrode member electrically biased by a power supply to detach toner from the donor member as to form a toner cloud for developing the latent image. A power supply controller, in communication with the power supply, is adapted to adjust the electrode member electrical biasing to avoid air breakdown induced contamination of the electrode member with toner.
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公开(公告)号：CA2258070C
公开(公告)日：2001-12-18
申请号：CA2258070
申请日：1999-01-07
Applicant: XEROX CORP
Inventor： TABB CHARLES H , JACKSON MARK S , OBRIEN JOHN F , HAYS DAN A
Abstract: A Recharge-Expose-and-Develop Image on Image color electrophotographic printing system in which the photoreceptor is recharged between development of one color of toner image and the subsequent exposure for a second color late nt image by first being sprayed with opposite sign ions to reduce the photoreceptor potential and then being charged with correct sign ions to recharge the photoreceptor to a desired potential.
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公开(公告)号：CA2028702C
公开(公告)日：1999-02-23
申请号：CA2028702
申请日：1990-10-29
Applicant: XEROX CORP
Inventor： HAYS DAN A
Abstract: A scavengeless/non-interactive development system for use in highlight color imaging. To control the developability of lines and the degree of interaction between the toner and receiver, the combination of an AC voltage on a developer donor roll with an AC voltage between toner cloud forming wires and donor roll enables efficient detachment of toner from the donor to form a toner cloud and position one end of the cloud in close proximity to the image receiver for optimum development of lines and solid areas without scavenging a previously toned image.
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Patent Agency Ranking
公开(公告)号：DE69408192D1
公开(公告)日：1998-03-05
申请号：DE69408192
申请日：1994-03-29
Applicant: XEROX CORP
Inventor： SYPULA DONALD S , DEFEO PAUL J , HAYS DAN A , MAMMINO JOSEPH , PAI DAMODAR M , WAYMAN WILLIAM H , YANUS JOHN F
Abstract: A coated toner transport roll consisting of a core with a coating of charge transporting monomers (I) dispersed in a binder and an oxidising agent selected from ferric chloride and trifluoroacetic acid present in an amt. of 1-50, esp. 2-15 wt.%, the coating having a relaxation time of ca. 0.0099 millisecond to 3.5 milliseconds and a residual voltage of ca. 1-10 volts. Pref. the coating is 3-50 microns thick and the (I) is an aryldiamine of formula (I), in which X, Y and Z are H, 1-25C alkyl or halogen and at least one of X, Y and Z is independently chosen from alkyl and halogen, dispersed in a polyethercarbonate binder. Pref. the transport roll has a vol. electrical resistivity of ca. 10 power(9) ohm-cm to 10 power(11) ohm-cm and a dielectric constant of 3-5.
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公开(公告)号：DE69311015T2
公开(公告)日：1997-11-20
申请号：DE69311015
申请日：1993-07-26
Applicant: XEROX CORP
Inventor： HAYS DAN A
Abstract: A non-interactive or scavengeless development system for use in color imaging. To control the developability of lines and the degree of interaction between the toner and receiver, an AC voltage is applied between a donor roll (40) and electrodes (42) supported adjacent to the surface of said donor roll (40) to enable efficient detachment of toner from the donor to form a toner cloud. An AC voltage applied between the donor roll assembly and an image receiver serves to position the cloud in close proximity to the image receiver for optimum development of lines and solid areas without scavenging a previously toned image.
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公开(公告)号：DE69117904T2
公开(公告)日：1996-07-25
申请号：DE69117904
申请日：1991-12-19
Applicant: XEROX CORP
Inventor： HAYS DAN A
Abstract: Selective coloring of bi-level latent electrostatic images is obtained through a combination of 1) a scavengeless development nip enabled by an AC biased wire in self-spaced contact with a toned donor roll, 2) a belt image receiver such as either a photoreceptor or electroreceptor without a ground plane and 3) an array of addressable, stationary electrodes positioned behind the belt in alignment with the AC biased wire. Selective coloring of the electrostatic image is obtained by selectively DC biasing addressable, stationary electrode structures forming electrode arrays positioned behind the belt. By controlling the level and timing for applying a DC bias to each electrode segment, the developability can be switched on and off with x,y addressability in the plane of the electrostatic image. Thus, with a system having resident multi-colored development systems, different areas of the electrostatic image can be developed in a single pass with different colors and perfect registration simply by controlling the DC electrical signals to the electrodes.
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公开(公告)号：DE3273352D1
公开(公告)日：1986-10-23
申请号：DE3273352
申请日：1982-07-27
Applicant: XEROX CORP
Inventor： HAYS DAN A , WAYMAN WILLIAM H
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公开(公告)号：AU547726B2
公开(公告)日：1985-10-31
申请号：AU7117181
申请日：1981-05-29
Applicant: XEROX CORP
Inventor： HAYS DAN A
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