摘要:
Dispersions for producing photogenerator layers of photoreceptors are provided. The dispersions include a resin, a photogenerating component, and an adhesive.
摘要:
A photoconductive imaging member is disclosed comprising a charge generation layer and a charge transport layer comprising an oxidative inhibitor. An electrophotographic imaging process using the imaging member of the invention is also described.
摘要:
A photoreceptor comprising a charge transport layer doped with a polyarylate polymer is provided. A charge transport layer is doped with about 0.1 to about 10.0% by weight, solids basis, of a polyarylate polymer, such as for example Ardel. Charge transport layers doped with a polyarylate polymer exhibit improved electrical performance in terms of lower Vr and VBG values.
摘要:
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.
摘要:
An electrophotographic imaging member containing a supporting substrate having an electrically conductive surface comprising charge injecting material, a charge blocking layer including a water insoluble high molecular weight unmodified hydroxy methacrylate polymer and at least one photoconductive layer, the charge blocking layer having a surface resistivity greater than about 10.sup.10 ohm/sq. This imaging member may be employed in an electrostatographic imaging process.
摘要:
An electrophotographic imaging member is disclosed which is provided with a charge transport layer comprising at least one polycarbonate polymer binder having a weight average molecular weight based on polystyrene units of from about 150,000 to about 190,000 and at least one polycarbonate binder having a weight average molecular weight based on polystyrene units of from about 230,000 to about 300,000 and a hole transport material.
摘要:
A process for preparing an overcoat for an imaging member having a substrate, a charge transport layer, and an overcoat positioned on the charge transport layer, and the process includes combining a prepolymer having a reactive group selected from the group consisting of hydroxyl, carboxylic acid and amide groups, a melamine formaldehyde crosslinking agent, an acid catalyst, and an alcohol-soluble small molecule to form an overcoat solution; and subsequently providing the overcoat solution onto the charge transport layer to form an overcoat layer.
摘要:
A coating application system includes a coating applicator having an outlet through which a stream of a liquid coating is delivered, a substrate which receives the stream of liquid coating, and a vacuum system which applies a vacuum to the liquid coating.
摘要:
A charge transport layer composition for a photoreceptor includes at least a binder and a charge transport material of about 100% to about 40% by weight of a total of the charge transport layer N,N-dimethylphenyl)-4-biphenylamine and about 0% to about 60% N,N′-bis(3-methylphenyl)-(1,1′-biphenyl)-4,4′-diamine, and wherein the total charge transport material in the composition is 48% or less of the total solids of the composition. The charge transport layer forms a layer of a photoreceptor, which also includes an optional anti-curl layer, a substrate, an optional hole blocking layer, an optional adhesive layer, a charge generating layer, and optionally one or more overcoat or protective layers.