1,1' Biphenyl 4,4' Diamine (e.g., Benzidine, Etc.) Patents (Class 430/58.8)
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Patent number: 6958204Abstract: An electrophotographic photosensitive member includes a charge generating material and a charge transfer material. The charge transfer material contains a triarylamine compound synthesized from an amine compound and an aryl halide in the presence of a catalyst comprising a phosphine compound represented by formula (1) and a palladium compound: wherein Ar1 to Ar3 are each independently an alkyl or aryl group which may have a substituent group, and at least one of Ar1 to Ar3 is an aryl group. A process cartridge includes the electrophotographic photosensitive member.Type: GrantFiled: August 25, 2004Date of Patent: October 25, 2005Assignee: Canon Kabushiki KaishaInventors: Takakazu Tanaka, Mitsuhiro Kunieda, Yuka Nakajima, Harunobu Ohgaki
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Patent number: 6933089Abstract: A charge transport layer for an imaging member comprising a dual charge transport layer and wherein the charge transport layers comprise a photogenerating layer; (1) a first charge transport layer comprised of a charge transport component and a resin binder; and thereover and in contact with the first layer; (2) a second top charge transport layer comprised of a charge transport component, a resin binder and a hindered phenol dopant. The charge transport layer exhibits, excellent electrical performance, outstanding print quality and reduces the diffusion of the anti-oxidant into the charge generator layer.Type: GrantFiled: December 16, 2002Date of Patent: August 23, 2005Assignee: Xerox CorporationInventors: Anthony M. Horgan, Satchidanand Mishra, Robert C. U. Yu, Kathleen M. Carmichael, Kent J. Evans, Timothy J. Fuller, Colleen A. Helbig, John F. Yanus, Damodar M. Pai, Karen S. Garland
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Patent number: 6919154Abstract: A photoconductive imaging member containing a supporting substrate, a photogenerating layer, a charge transport layer, and in contact with the charge transport layer comprised of a polymer and a yellow dye of the formulaType: GrantFiled: May 5, 2003Date of Patent: July 19, 2005Assignee: Xerox CorporationInventors: Timothy J. Fuller, Satchidanand Mishra, John F. Yanus, Anthony M. Horgan, Geoffrey M. T. Foley, Huoy-Jen Yuh, Dale S. Renfer, Yuhua Tong, Kenny-Tuan T. Dinh, Markus R. Silvestri, John F. Graham
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Patent number: 6913863Abstract: A photoconductive imaging member including a hole blocking layer, a photogenerating layer, and a charge transport layer, and wherein the hole blocking layer contains, for example, a metal oxide; and a mixture of a phenolic compound and a phenolic resin, and wherein the phenolic compound can contain at least two phenolic groups.Type: GrantFiled: February 19, 2003Date of Patent: July 5, 2005Assignee: Xerox CorporationInventors: Jin Wu, Liang-Bih Lin, Jennifer Y. Hwang
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Patent number: 6875548Abstract: A photoconductive imaging member including an optional supporting substrate, a photogenerating layer, and a charge transport layer, and wherein said layer includes a charge transport component and a polysiloxane.Type: GrantFiled: February 19, 2003Date of Patent: April 5, 2005Assignee: Xerox CorporationInventors: Yuhua Tong, Timothy J. Fuller, John F. Yanus, Dale S. Renfer, Markus R. Silvestri, Cindy C. Chen, Dennis J. Prosser, Susan M. VanDusen, Lanhui Zhang, Sean X. Pan
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Patent number: 6864026Abstract: A photoconductive imaging member comprised of an optional supporting substrate, an optional blocking layer, a photogenerating layer, and a charge transport layer, and wherein said charge transport layer comprises a crosslinked polycarbonate component containing a repeating segment of the formula wherein R1 is selected from the group consisting of hydrogen, alkyl with from about 1 to about 15 carbons optionally further containing one or more heteroatoms selected from the group consisting of nitrogen, oxygen, sulfur, silicon, and phosphorus, or aryl; R2 represents a divalent linkage; Ar3 and Ar4 each independently represent aromatic groups; R3 and R4 are independently selected from the group consisting of hydrogen, alkyl, and aryl; and optionally wherein R3 and R4 form a combined ring structure; and wherein x and y represent the mole fractions of the repeating segments.Type: GrantFiled: March 14, 2003Date of Patent: March 8, 2005Assignee: Xerox CorporationInventors: Yu Qi, Nan-Xing Hu, H. Bruce Goodbrand, Paul F. Smith, C. Geoffrey Allen
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Patent number: 6861188Abstract: Electrophotographic photoreceptor having a photosensitive layer containing an amino compound selected from formulae 1 to 22 in the specification.Type: GrantFiled: September 6, 2002Date of Patent: March 1, 2005Assignee: Ricoh Company LimitedInventors: Takaaki Ikegami, Yasuo Suzuki, Tomoyuki Shimada, Nozomu Tamoto, Hidetoshi Kami
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Patent number: 6858363Abstract: A photoconductive imaging member comprised of a supporting substrate, a hole blocking layer thereover, a photogenerating layer, and a charge transport layer, and wherein the hole blocking layer is comprised of a metallic component and an electron transport component.Type: GrantFiled: April 4, 2003Date of Patent: February 22, 2005Assignee: Xerox CorporationInventors: Nancy L. Belknap, Cindy C. Chen, Lanhui Zhang, Andronique Ioannidis, James M. Duff, John F. Graham, Timothy P. Bender
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Publication number: 20040265716Abstract: An organic photoconductor, comprises a conductive base, a charge generating lager and a charge transport layer, wherein the charge generating lager and the charge transport layer are provided in this order on the conductive base, wherein when a curve is drawn by plotting integrated-values of a detected current in terms of time in measurement of transient photocurrent by TOF (time of flight) measurement with an electric field intensity of 10V/&mgr;m , crossing angle &thgr; of two tangent lines tangent to the curve is 15° to 45°; and the charge transport lager has a film thickness of 20 to 35 &mgr;m.Type: ApplicationFiled: June 15, 2004Publication date: December 30, 2004Inventors: Akihiko Itami, Kazuhisa Shida
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Patent number: 6835512Abstract: An electrophotographic photosensitive member is disclosed in which a photosensitive layer and a protective layer are formed on a conductive substrate in that order. In this photosensitive member, when its surface is charged to −700 V under a 23° C./5% RH environment and irradiated with white light in a light quantity of 10 lux·sec, if the surface potential at the time 0.2 seconds have passed from the irradiation and the surface potential at the time 0.5 seconds have passed from the irradiation are defined as Vsl(0.2) and Vsl(0.5), respectively, the absolute value of Vsl(0.2) and the absolute value of Vsl(0.2)−Vsl(0.5) satisfy specific conditions.Type: GrantFiled: December 19, 2002Date of Patent: December 28, 2004Assignee: Canon Kabushiki KaishaInventors: Yosuke Morikawa, Tatsuya Ikezue, Kouichi Nakata, Kimihiro Yoshimura, Daisuke Tanaka
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Patent number: 6824940Abstract: A photoconductive imaging member containing a hole blocking layer, a photogenerating layer, a charge transport layer, and thereover an overcoat layer comprised of a polymer with a low dielectric constant and charge transport molecules.Type: GrantFiled: February 19, 2003Date of Patent: November 30, 2004Assignee: Xerox CorporationInventors: Jin Wu, Markus R. Silvestri, Liang-Bih Lin, Cindy C. Chen
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Patent number: 6818366Abstract: A photoconductive imaging member comprised of an optional supporting substrate, an optional blocking layer, a photogenerating layer, and a charge transport layer, and a SiO3 containing polycarbonate component.Type: GrantFiled: March 14, 2003Date of Patent: November 16, 2004Assignee: Xerox CorporationInventors: Yu Qi, Nan-Xing Hu, H. Bruce Goodbrand, Paul F. Smith, C. Geoffrey Allen
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Publication number: 20040224244Abstract: A photoconductive imaging member containing a supporting substrate, a photogenerating layer, a charge transport layer, and in contact with the charge transport layer comprised of a polymer and a yellow dye of the formula.Type: ApplicationFiled: May 5, 2003Publication date: November 11, 2004Applicant: Xerox CorporationInventors: Timothy J. Fuller, Satchidanand Mishra, John F. Yanus, Anthony M. Horgan, Geoffrey M. T. Foley, Huoy-Jen Yuh, Dale S. Renfer, Yuhua Tong, Kenny-Tuan T. Dinh, Markus R. Silvestri, John F. Graham
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Patent number: 6811940Abstract: The present invention intends to provide a TPD derivative being excellent in electric properties as a compound due to its extremely less content of impurities (TPD analogues) as well as being excellent in film-forming property due to its low crystallinity.Type: GrantFiled: September 19, 2002Date of Patent: November 2, 2004Assignee: Orient Chemical Industries, Ltd.Inventors: Yoshio Kita, Yasuhiro Yamasaki
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Publication number: 20040214100Abstract: A photoconductive imaging member containing a photogenerating layer, a charge transport layer, or a plurality of charge transport layers, and which charge transport, especially the top charge transport layer contains a vinyl containing organic compound.Type: ApplicationFiled: April 24, 2003Publication date: October 28, 2004Applicant: Xerox CorporationInventors: Robert C.U. Yu, Satchidanand Mishra, Anthony M. Horgan, Richard L. Post, Yuhua Tong, Edward F. Grabowski, Kathleen M. Carmichael, Markus R. Silvestri
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Patent number: 6806009Abstract: In an electrophotographic photosensitive member comprising a cylindrical support, and provided thereon a photosensitive layer and a protective layer in this order, which cylindrical support has an outer diameter of less than 30 mm, the difference between a coefficient of thermal expansion &agr;1 measured from the top of the protective layer and a coefficient of thermal expansion &agr;2 measured after the protective layer has been removed, |&agr;1−&agr;2|, is more than 5.0×10−7° C.−1 to less than 1.0×10−4° C.−1, and the modulus of elastic deformation We % measured from the top of the protective layer is more than 30% to less than 60%. Also disclosed are a process cartridge and an electrophotographic apparatus which have such an electrophotographic photosensitive member.Type: GrantFiled: December 9, 2002Date of Patent: October 19, 2004Assignee: Canon Kabushiki KaishaInventors: Daisuke Tanaka, Yosuke Morikawa, Tatsuya Ikezue, Kouichi Nakata, Kimihiro Yoshimura
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Publication number: 20040202947Abstract: A photoconductive imaging member including a hole blocking layer, a photogenerating layer, and a charge transport layer, and wherein the hole blocking layer contains, for example, a metal oxide dispersed in an in situ formed inorganic/organic network wherein the inorganic component is silica, titania or zirconia, and the organic component is a mixture of a phenolic compound and a phenolic resin, and wherein the phenolic compound can contain, for example, at least two phenolic groups.Type: ApplicationFiled: April 9, 2003Publication date: October 14, 2004Applicant: Xerox CorporationInventors: Jin Wu, Jennifer Y. Hwang, Liang-Bih Lin, Geoffrey M.T. Foley, John J. Wilbert
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Publication number: 20040197686Abstract: A photoconductive imaging member comprised of a supporting substrate, a hole blocking layer thereover, a photogenerating layer, and a charge transport layer, and wherein the hole blocking layer is comprised of a metallic component and an electron transport component.Type: ApplicationFiled: April 4, 2003Publication date: October 7, 2004Applicant: Xerox CorporationInventors: Nancy L. Belknap, Cindy C. Chen, Lanhui Zhang, Andronique Ioannidis, James M. Duff, John F. Graham, Timothy P. Bender
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Patent number: 6800411Abstract: A photoconductive imaging member comprised of a substrate, a photogenerating layer, and a charge transport layer containing a binder and a compound containing at least two (methyl)acrylates.Type: GrantFiled: February 19, 2003Date of Patent: October 5, 2004Assignee: Xerox CorporationInventors: Yuhua Tong, Jin Wu, Liang-Bih Lin, John F. Yanus
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Patent number: 6797445Abstract: A flexible electrophotographic imaging member comprising a supporting substrate, at least one imaging layer on one side of the supporting substrate, a charge blocking layer, an optional adhesive layer, a charge-generating layer, a charge transporting layer, a seam overcoat layer comprising a coating solution of a co-polyester resin and having a thickness of from about 2 to about 4 micrometers and having a width of from about 2 to about 10 millimeters and wherein said co-polyester resin is present in an amount of from about 2 to about 40 percent by weight based on the total weight of said overcoat layer, and a binder. The imaging member exhibits an excellent life cycle; excellent wear resistance, excellent electrical performance, and outstanding print quality.Type: GrantFiled: December 16, 2002Date of Patent: September 28, 2004Assignee: Xerox CorporationInventors: David J. Maty, John A. Bergfjord, Sr., Stephan V. Drappel
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Publication number: 20040185360Abstract: A photoconductive imaging member comprised of an optional supporting substrate, an optional blocking layer, a photogenerating layer, and a charge transport layer, and wherein said charge transport layer comprises a crosslinked polycarbonate component containing a repeating segment of the formula 1Type: ApplicationFiled: March 14, 2003Publication date: September 23, 2004Applicant: Xerox CorporationInventors: Yu Qi, Nan Xing Hu, H. Bruce Goodbrand, Paul F. Smith, C. Geoffrey Allen
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Publication number: 20040185359Abstract: A photoconductive imaging member comprised of an optional supporting substrate, an optional blocking layer, a photogenerating layer, and a charge transport layer, and a SiO3 containing polycarbonate component.Type: ApplicationFiled: March 14, 2003Publication date: September 23, 2004Applicant: Xerox CorporationInventors: Yu Qi, Nan-Xing Hu, H. Bruce Goodbrand, Paul F. Smith, C. Geoffrey Allen
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Publication number: 20040175637Abstract: A photoconductive imaging member including an optional supporting substrate, a photogenerating layer, and a charge transport layer, and wherein said layer includes a charge transport component and a polysiloxane.Type: ApplicationFiled: February 19, 2003Publication date: September 9, 2004Applicant: Xerox CorportionInventors: Yuhua Tong, Timothy J. Fuller, John F. Yanus, Dale S. Renfer, Markus R. Silvestri, Cindy C. Chen, Dennis J. Prosser, Susan M. VanDusen, Lanhui Zhang, Sean X. Pan
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Patent number: 6787277Abstract: A member including for example, a substrate, a charge generating layer, a charge transport layer comprising a synthesized mixture of N,N,N′,N′-Tetra-p-tolyl-biphenyl-4,4′-diamine, N,N′-Diphenyl-N,N′-di-m-tolyl-biphenyl-4,4′-diamine, N,N′-Bis-(4-butyl-phenyl)-N,N′-di-p-tolyl-biphenyl-4,4′-diamine, N,N′-Bis-(4-butyl-phenyl)-N,N′-di-m-tolyl-biphenyl-4,4′diamine, N-Phenyl-N-m-tolyl-N′,N′-di-p-tolyl-biphenyl-4,4′-diamine, N-(4-Butyl-phenyl)-N,N′,N′-tri-p-tolyl-biphenyl-4,4′-diamine, N-(4-Butyl-phenyl)-N′-phenyl-N′-m-tolyl-N-p-tolyl-biphenyl-4,4′-diamine, N-(4-Butyl-phenyl)-N-m-tolyl-N′,N′-di-p-tolyl-biphenyl-4,4′-diamine, N-(4-Butyl-phenyl)-N′-phenyl-N,N′-di-m-tolyl-biphenyl-4,4′-diamine, and N,N′-Bis-(4-butyl-phenyl)-N-m-tolyl-N′-p-tolyl-biphenyl-4,4′-diamine, and a film forming binder.Type: GrantFiled: October 8, 2002Date of Patent: September 7, 2004Assignee: Xerox CorporationInventors: Yuhua Tong, John F. Yanus, Timothy J. Fuller, Min-Hong Fu, Dennis J. Prosser, Susan M. VanDusen
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Patent number: 6780554Abstract: A charge transport layer for an imaging member comprising a photogenerating layer, (1) a first charge transport layer comprised of a charge transport component and a resin binder, and thereover and in contact with the first layer (2) a second top charge transport layer comprised of a charge transport component, and a polymer of a styrene containing hindered phenol. The charge transport layer exhibits excellent wear resistance, excellent electrical performance, and outstanding print quality.Type: GrantFiled: December 16, 2002Date of Patent: August 24, 2004Assignee: Xerox CorporationInventors: Yuhua Tong, Timothy J. Fuller, Colleen A. Helbig, Kent J. Evans, John F. Yanus, Karen S. Garland, Paul J. DeFeo, Anita P. Lynch, Kathleen M. Carmichael, Damodar M. Pai
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Publication number: 20040161684Abstract: A photoconductive imaging member including a hole blocking layer, a photogenerating layer, and a charge transport layer, and wherein the hole blocking layer contains, for example, a metal oxide; and a mixture of a phenolic compound and a phenolic resin, and wherein the phenolic compound can contain at least two phenolic groups.Type: ApplicationFiled: February 19, 2003Publication date: August 19, 2004Applicant: Xerox CorporationInventors: Jin Wu, Liang-Bih Lin, Jennifer Y. Hwang
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Publication number: 20040161681Abstract: A photoconductive imaging member comprised of a substrate, a photogenerating layer, and a charge transport layer containing a binder and a compound containing at least two (methyl)acrylates.Type: ApplicationFiled: February 19, 2003Publication date: August 19, 2004Applicant: Xerox CorporationInventors: Yuhua Tong, Jin Wu, Liang-Bih Lin, John F. Yanus
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Publication number: 20040161682Abstract: A photoconductive imaging member containing a hole blocking layer, a photogenerating layer, a charge transport layer, and thereover an overcoat layer comprised of a polymer With a low dielectric constant and charge transport molecules.Type: ApplicationFiled: February 19, 2003Publication date: August 19, 2004Applicant: Xerox CorporationInventors: Jin Wu, Markus R. Silvestri, Liang-Bih Lin, Cindy C. Chen
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Publication number: 20040161683Abstract: A photoconductive imaging member including a supporting substrate, a hole blocking layer thereover, a crosslinked photogenerating layer and a charge transport layer, and wherein the photogenerating layer includes a photogenerating component and a vinyl chloride, allyl glycidyl ether, hydroxy containing polymer.Type: ApplicationFiled: February 19, 2003Publication date: August 19, 2004Applicant: Xerox CorporationInventors: Jin Wu, Liang-Bih Lin, John S. Chambers
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Publication number: 20040151999Abstract: An imaging member having a charge transport layer with multiple regions or layers is provided. The charge transport layer includes at least two charge transport layers coated from solutions of different components and concentrations, wherein the second (top) transport layer comprises a lower concentration of different charge transport compound than the first (bottom) charge transport layer. The charge transport compound included in the second (top) charge transport layer is a high mobility hole transport compound. The charge transport compound in each layer is dissolved or molecularly dispersed in an electrically inactive film forming polymer to form a solid solution. In such a construction, the resulting dual charge transport layer exhibits enhanced cracking suppression, improves wear resistance, provides excellent imaging member electrical performance, and delivers improved print quality.Type: ApplicationFiled: December 12, 2003Publication date: August 5, 2004Applicant: Xerox CorporationInventors: Satchidanand Mishra, Houy Jen Yuh, Anthony M. Horgan, Markus R. Silvestri, Robert C.U. Yu, Yuhua Tong, Dale Renfer, Kenny-Tuan Dinh, Geoff Foley, Jack Yanus, Timothy Fuller
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Patent number: 6770410Abstract: An imaging member including, for example, a substrate, a charge blocking layer, an optional adhesive layer, a charge generating layer, a charge transporting layer comprising a charge transport component and a polymer binder substantially free of low molecular weight fractions.Type: GrantFiled: October 31, 2002Date of Patent: August 3, 2004Assignee: Xerox CorporationInventors: Robert C. U. Yu, Timothy J. Fuller, Kathleen M. Carmichael
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Publication number: 20040126684Abstract: An imaging member having a charge transport layer is provided. The charge transport layer includes a plurality of charge transport layers coated from solutions of similar or different compositions or concentrations, wherein the upper or additional transport layer(s) comprise a lower concentration of charge transport compound than the first (bottom) charge transport layer. The charge transport compound included in the first (bottom) charge transport layer may either be the same or different from that included in the additional charge transport layers. The charge transport compound in one or more of the layers is dissolved or molecularly dispersed in an electrically inactive polymer material to form a solid solution. In such a construction, the resulting charge transport layer exhibits enhanced cracking suppression, improves wear resistance, provides excellent imaging member electrical performance, and delivers improved print quality.Type: ApplicationFiled: December 16, 2003Publication date: July 1, 2004Applicant: Xerox CorporationInventors: Anthony M. Horgan, Robert C.U. Yu, Satchidanand Mishra, Richard L. Post, Edward F. Grabowski, Kathleen M. Carmichael, John R. Lambie
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Publication number: 20040126685Abstract: An imaging member having a charge transport layer with multiple regions is provided. The charge transport layer includes a plurality of charge transport layers coated from solutions of similar or different compositions or concentrations, wherein at least the top or uppermost transport layer comprises a lower concentration of charge transport compound than the first (bottom) charge transport layer. The charge transport compound included in the first (bottom) charge transport layer may either be of the same or different compounds from that included in the top or additional charge transport layer(s). The charge transport compound present in each layer may be dissolved or molecularly dispersed in an electrically inactive polymer material to form a solid solution. In such a construction, the resulting charge transport layer exhibits enhanced cracking suppression, improves wear resistance, provides excellent imaging member electrical performance, and delivers improved print quality.Type: ApplicationFiled: December 16, 2003Publication date: July 1, 2004Applicant: Xerox CorporationInventors: Anthony M. Horgan, Satchidanand Mishra, Robert C.U. Yu, Richard L. Post, Edward F. Grabowski, Kathleen M. Carmichael, John R. Lambie
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Publication number: 20040115544Abstract: A charge transport layer for an imaging member comprising a charge transport layer wherein the charge transport layer comprises the application of charge transport molecules and a poly(fluoroacrylate)-graft-poly(methyl methacrylate) surfactant. The charge transport layer exhibits excellent wear resistance, excellent electrical performance, excellent print quality and decreased crystallization of the charge transport component.Type: ApplicationFiled: December 16, 2002Publication date: June 17, 2004Applicant: Xerox CorporationInventors: Min-Hong Fu, Colleen A. Helbig, Kent J. Evans, Kathleen M. Carmichael, David M. Skinner
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Publication number: 20040115547Abstract: A charge transport layer for an imaging member comprising a photogenerating layer, (1) a first charge transport layer comprised of a charge transport component and a resin binder, and thereover and in contact with the first layer (2) a second top charge transport layer comprised of a charge transport component, and a polymer of a styrene containing hindered phenol.Type: ApplicationFiled: December 16, 2002Publication date: June 17, 2004Applicant: Xerox CorporationInventors: Yuhua Tong, Timothy J. Fuller, Colleen A. Helbig, Kent J. Evans, John F. Yanus, Karen S. Garland, Paul J. DeFeo, Anita P. Lynch, Kathleen M. Carmichael, Damodar M. Pai
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Publication number: 20040115546Abstract: A charge transport layer for an imaging member comprising a charge transport layer wherein the charge transport layer is coated in two passes and wherein the second pass comprises the application of a charge transport component and a hindered phenol covalently bonded to a polymer. The charge transport layer exhibits excellent wear resistance, excellent electrical performance, and excellent print quality.Type: ApplicationFiled: December 16, 2002Publication date: June 17, 2004Applicant: Xerox CorporationInventors: Yuhua Tong, Timothy J. Fuller, Colleen A. Helbig, Kent J. Evans, John F. Yanus, Karen S. Garland, Paul J. DeFeo, Anita P. Lynch, Kathleen M. Carmichael, Damodar M. Pai, Dale S. Renfer, Markus R. Silvestri
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Publication number: 20040115545Abstract: A charge transport layer for an imaging member comprising a dual charge transport layer and wherein the charge transport layers comprise a photogenerating layer; (1) a first charge transport layer comprised of a charge transport component and a resin binder; and thereover and in contact with the first layer; (2) a second top charge transport layer comprised of a charge transport component, a resin binder and a hindered phenol dopant. The charge transport layer exhibits, excellent electrical performance, outstanding print quality and reduces the diffusion of the anti-oxidant into the charge generator layer.Type: ApplicationFiled: December 16, 2002Publication date: June 17, 2004Applicant: Xerox CorporationInventors: Anthony M. Horgan, Satchidanand Mishra, Robert C.U. Yu, Kathleen M. Carmichael, Kent J. Evans, Timothy J. Fuller, Colleen A. Helbig, John F. Yanus, Damodar M. Pai, Karen S. Garland
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Publication number: 20040096761Abstract: A photoconductive imaging member containers of a supporting substrate, and thereover a single layer comprised of a mixture of a photogenerator component, a charge transport component, an electron transport component, and a polymer binder, and wherein the photogenerating component is a pigment.Type: ApplicationFiled: November 20, 2002Publication date: May 20, 2004Applicant: Xerox CorporationInventors: Liang-Bih Lin, Richard H. Nealey, Ah-Mee Hor, James M. Duff, Timothy P. Bender, Andrew R. Melnyk, Andronique Ioannidis, Harold F. Hammond, Linda L. Ferrarese, Cindy C. Chen, James M. Markovics, Kenny-Tuan T. Dinh
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Publication number: 20040086796Abstract: An imaging member including, for example, a substrate, a charge blocking layer, an optional adhesive layer, a charge generating layer, a charge transporting layer comprising, and a film forming polymer binder substantially free of low molecular weight fractions.Type: ApplicationFiled: October 31, 2002Publication date: May 6, 2004Applicant: Xerox Corporation.Inventors: Robert C. U. Yu, Timothy J. Fuller, Kathleen M. Carmichael
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Publication number: 20040067427Abstract: A member including for example, a substrate, a charge generating layer, a charge transport layer comprising a synthesized mixture ofType: ApplicationFiled: October 8, 2002Publication date: April 8, 2004Applicant: Xerox CorporationInventors: Yuhua Tong, John F. Yanus, Timothy J. Fuller, Min-Hong Fu, Dennis J. Prosser, Susan M. VanDusen
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Publication number: 20040018439Abstract: A member including for example, a substrate, a charge generating layer, a charge transport layer comprising a poly(phenylsilsesquioxane), molecule, and a film forming binder.Type: ApplicationFiled: July 23, 2002Publication date: January 29, 2004Applicant: Xerox CorporationInventors: Yuhua Tong, Timothy J. Fuller, Sean X. Pan, John F. Yanus, Cindy C. Chen, Min-Hong Fu, Dennis J. Prosser, Susan M. VanDusen
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Publication number: 20040009418Abstract: A member including for example, a substrate, a charge blocking layer, an optional adhesive layer, a charge generating layer comprising particles comprising a photogenerating layer of for example, chlorogallium phthalocyanine dispersed in a matrix comprising a charge transport molecule, an electron transport molecule which functions to sensitize the chlorogallium phthalocyanine pigment in the charge generating layer and mixtures thereof, and a film forming binder.Type: ApplicationFiled: July 2, 2002Publication date: January 15, 2004Applicant: Xerox Corporation.Inventors: Anna M. Main, Liang-Bih Lin, John S. Chambers, James M. Duff, Timothy P. Bender
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Patent number: 6656651Abstract: A component containing a supporting substrate, and thereover a layer comprised of a alkylimido-monobenzamidazole-perinone-perylene or a bisalkylimido-perinone-perylene of the alternative following formulas wherein each of R1, R2 and R3 are, for example, independently alkyl or aryl.Type: GrantFiled: May 22, 2002Date of Patent: December 2, 2003Assignee: Xerox CorporationInventors: Timothy P. Bender, James M. Duff, Cuong Vong, Gordon K. Hamer
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Publication number: 20030218665Abstract: An image forming apparatus has at least a photoconductor, a charger, and an irradiator for irradiating a light for optically writing in on the photoconductor to form a latent electrostatic image using a process for electrophotography in which a resolution of the optical writing in operation is 1200 dpi or more. Further, the optical writing operation is performed using a laser beam having a diameter of 35 &mgr;m or less. The photoconductor is provided with at least a charge generating layer containing a charge generating substance and a charge transporting layer containing a charge transporting substance. The charge transporting layer has a carrier mobility of 1×10−5 cm2·V−1·sec−1 or more under an electric field of 3×10−5 V·cm−1.Type: ApplicationFiled: October 1, 2002Publication date: November 27, 2003Inventors: Kei Yasutomi, Yasuo Suzuki, Nozomu Tamoto
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Publication number: 20030194625Abstract: In an electrophotographic photosensitive member comprising a cylindrical support, and provided thereon a photosensitive layer and a protective layer in this order, which cylindrical support has an outer diameter of less than 30 mm, the difference between a coefficient of thermal expansion &agr;1 measured from the top of the protective layer and a coefficient of thermal expansion &agr;2 measured after the protective layer has been removed, |&agr;1−&agr;2|, is more than 5.0×10−7° C.−1 to less than 1.0×10−4° C.−1, and the modulus of elastic deformation We % measured from the top of the protective layer is more than 30% to less than 60%. Also disclosed are a process cartridge and an electrophotographic apparatus which have such an electrophotographic photosensitive member.Type: ApplicationFiled: December 9, 2002Publication date: October 16, 2003Inventors: Daisuke Tanaka, Yosuke Morikawa, Tatsuya Ikezue, Kouichi Nakata, Kimihiro Yoshimura
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Publication number: 20030194627Abstract: Electrophotographic photoreceptor having a photosensitive layer containing an amino compound selected from formulae 1 to 22 in the specification.Type: ApplicationFiled: September 6, 2002Publication date: October 16, 2003Inventors: Takaaki Ikegami, Yasuo Suzuki, Tomoyuki Shimada, Nozomu Tamoto, Hidetoshi Kami
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Publication number: 20030186145Abstract: An electrophotographic photosensitive member is disclosed in which a photosensitive layer and a protective layer are formed on a conductive substrate in that order. In this photosensitive member, when its surface is charged to −700 V under a 23° C./5% RH environment and irradiated with white light in a light quantity of 10 lux·sec, if the surface potential at the time 0.2 seconds have passed from the irradiation and the surface potential at the time 0.5 seconds have passed from the irradiation are defined as Vsl(0.2) and Vsl(0.5), respectively, the absolute value of Vsl(0.2) and the absolute value of Vsl(0.2)−Vsl(0.5) satisfy specific conditions.Type: ApplicationFiled: December 19, 2002Publication date: October 2, 2003Inventors: Yosuke Morikawa, Tatsuya Ikezue, Kouichi Nakata, Kimihiro Yoshimura, Daisuke Tanaka
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Publication number: 20030186144Abstract: An electrophotographic photosensitive member, irradiated with semiconductor laser light having a wavelength of 380 to 500 nm, includes a conductive substrate, a charge-generating layer formed thereon; and a charge transport layer formed thereon, the charge transport layer having a transmittance of at least 30% for the semiconductor laser light. A process cartridge mountable to and detachable from an electrophotographic apparatus includes the electrophotographic photosensitive member. An electrophotographic apparatus also includes the electrophotographic photosensitive member.Type: ApplicationFiled: July 27, 1999Publication date: October 2, 2003Inventors: MITSUHIRO KUNIEDA, TOSHIHIRO KIKUCHI, TETSURO KANEMARU, YUKA KAISHA
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Publication number: 20030175604Abstract: In an electrophotographic photosensitive member comprising a conductive support, and provided thereon a charge generation layer, a charge transport layer and a protective layer in this order, the layer thickness a0 (&mgr;m) of the charge transport layer at the middle portion of the conductive support in its generatrix direction, the layer thickness b0 (&mgr;m) of the protective layer at the middle portion of the conductive support in its generatrix direction, the layer thickness a (&mgr;m) of the charge transport layer at a portion other than the middle portion and the layer thickness b (&mgr;m) of the protective layer at the portion other than the middle portion satisfy the following expression (1) in a region satisfying 0.8 (&mgr;m)≦(a0−a)≦3.Type: ApplicationFiled: December 18, 2002Publication date: September 18, 2003Inventors: Yosuke Morikawa, Tatsuya Ikezue, Kouichi Nakata, Kimihiro Yoshimura, Daisuke Tanaka
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Patent number: 6586148Abstract: A photoconductive member with a supporting substrate, and thereover a first layer comprised of a mixture of a photogenerator component, a hole transport component, and an electron transport component; and thereover a second layer comprised of a charge transport component.Type: GrantFiled: January 31, 2002Date of Patent: July 1, 2003Assignee: Xerox CorporationInventors: John F. Graham, Timothy P. Bender, Liang-Bih Lin, Andronique Ioannidis