摘要:
An electrophotographic imaging member comprises a substrate, an electrophotographic imaging layer and an overcoat layer comprising a cross-linkable polymer and a hole transport material, wherein the overcoat layer provides at least one of solvent resistance and hydrocarbon resistance to the electrophotographic imaging layer.
摘要:
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.
摘要:
A charge transport layer for an imaging member comprising a charge transport material with a single carbon cored dendrimeric, star-like molecular structure not exhibiting early onset of charge transport layer fatigue cracking. The charge transport layer exhibits excellent wear resistance, excellent electrical performance, and outstanding print quality.
摘要:
A process for fabricating an electrophotographic imaging member includingforming a charge generating layer,forming an undried charge transport layer coating by applying to the charge generating layer a solution selected from either or both the group consisting ofa solution including a charge transport molecule, a first film forming binder and at least a first solvent anda solution including a charge transporting polymer and at least a first solvent,forming an undried overcoat layer coating by applying to the undried charge transport layer coating an overcoat layer coating solution including a second film forming polymer and at least a second solvent, the charge transport molecule and first film forming polymer or either or both a charge transporting polymer being substantially insoluble in the second solvent and the second polymer being substantially insoluble in the first solvent,applying heat to both the undried charge transport layer coating and the undried overcoat layer coating to migrate the first solvent from the charge transport layer coating through the undried overcoat layer coating while maintaining the overcoat layer coating porous to migration of the first solvent through the overcoat layer coating until the charge transport layer is substantially dry,increasing the heat applied to the overcoat layer coating to form a substantially dry overcoat layer.
摘要:
An electrophotographic imaging member includinga substrate,a charge generating layer,a charge transport layer, andan overcoat layer includinga hole transporting hydroxy arylamine compound having at least two hydroxy functional groups,bis-(2-methyl-4-diethylaminophenyl)-phenylmethane anda cross linked polyamide film forming binder.A process for forming an overcoated imaging member is also disclosed.
摘要:
Controllably conductive polymer compositions may be used in electrophotographic imaging developing systems, such as scavengeless or hybrid scavengeless systems or liquid image development systems. The conductive polymer compositions includes a charge-transporting material (particularly a charge-transporting, thiophene-containing polymer or an inert elastomeric polymer, such as a butadiene- or isoprene-based copolymer or an aromatic polyether-based polyurethane elastomer, that additionally comprises charge transport molecules) and a dopant capable of accepting electrons from the charge-transporting material. The invention also relates to an electrophotographic printing machine, a developing apparatus, and a coated transport member, an intermediate transfer belt, and a hybrid compliant photoreceptor comprising a composition of the invention.
摘要:
An electrophotographic imaging member including a supporting substrate, a charge generating layer comprising photoconductive pigment particles, a first film forming binder and 2,6-di-tert-butyl-4-methylphenol, and a charge transport layer. This imaging member may be formed by certain fabrication processes. The imaging member may be employed in an electrophotographic imaging process.
摘要:
An electrophotographic imaging member including a charge generating layer and a charge transport layer, the charge transport layer comprising a charge transporting small molecule dissolved or molecularly dispersed in a film forming charge transporting polymer comprising charge transporting moieties in the backbone of the film forming charge transporting polymer, the charge transporting moieties having a structure unlike the structure of the charge transporting small molecule, the ionization potential of the charge transporting small molecule and the charge transporting moieties having a difference in ionization potential value of less than about 0.05 electron volt, the charge transporting small molecule and the charge transporting polymer being non-absorbing to radiation in the region of intended use, and the charge transport layer being substantially free of electrically inactive film forming binder. This imaging member may be employed in an electrophotographic imaging process.