Abstract: Provided are a photoconductor for electrophotography that has sufficiently high sensitivity and excellent potential stability during repeated printing in various environments, and does not cause problems, such as deterioration of gradation or generation of memory images, especially when applied to monochrome high-speed printers and small medium-speed tandem color printers, as well as a method of manufacturing the photoconductor for electrophotography, and an electrophotographic equipment.

Abstract: A photoconductor for electrophotography includes a base member; an anodic oxide coating provided on the base member and having a film thickness of 2 to 10 ?m; an interlayer provided on the anodic oxide coating and containing a vinyl chloride-vinyl acetate copolymer resin and having a film thickness of 0.02 to 0.3 ?m; and a photosensitive layer including a charge transport layer formed on the interlayer and containing a charge transport material and a first resin binder, and a charge generation layer laminated on the charge transport layer and containing a charge generation material, a hole transport material, a first electron transport material that is a naphthalenetetracarboxylic diimide compound, a second electron transport material that is an azoquinone compound, a diphenoquinone compound, or a stilbenequinone compound and that has a mobility of 17×10?8 cm2/V·s or more, and a second resin binder.

Abstract: A photoconductor for electrophotography, including an electroconductive base member, an anodic oxide coating provided on the electroconductive base member, an interlayer provided on the anodic oxide coating, and a photosensitive layer including a charge transport layer formed on the interlayer, and a charge generation layer laminated on the charge transport layer. The charge transport layer contains a charge transport material and a first resin binder. The charge generation layer contains a charge generation material, a hole transport material, an electron transport material, and a second resin binder. The anodic oxide coating has a film thickness of 2 ?m or more and 10 ?m or less. The interlayer contains a vinyl chloride-vinyl acetate copolymer resin, and has a film thickness of 0.02 ?m or more and 0.3 ?m or less.

Abstract: A layered, positively-charged electrophotographic photoreceptor, a method for manufacturing the photoreceptor and an electrophotographic apparatus using the photoreceptor are disclosed. The layered, positively-charged electrophotographic photoreceptor includes a conductive support on which is provided a sequential stack composed of a charge transport layer containing at least a first hole transport material and a first binder resin; and a charge generation layer containing at least a charge generation material, a second hole transport material, an electron transport material, and a second binder resin, wherein the charge generation layer and the charge transport layer have a total amount of residual solvents that is 50 ?g/cm2 or less. The photoreceptor is highly sensitive, highly durable, and has excellent image qualities including low image defects from cracks generated due to image memory or contact contamination.

Abstract: An electrophotographic photoconductor includes a conductive support; and a photoconductive layer that contains at least a charge generation material, a hole transport material, an electron transport material and a binder resin, and that is provided on the conductive support, wherein the photoconductive layer has an outermost layer that contains a charge generation material, a hole transport material, an electron transport material, a binder resin and a highly branched polymer that is obtained by polymerizing, in the presence of a polymerization initiator, a monomer having, in a molecule, two or more radically polymerizable double bonds and a monomer having, in a molecule, a long-chain alkyl group or an alicyclic group and at least one radically polymerizable double bond. The electrophotographic photoconductor exhibits superior operational stability and stably high image quality, without problems with image memory, a contact member, or image defects due to cracks caused by contamination by oils/fats or sebum.

Abstract: An electrophotographic photoconductor includes a conductive support; a charge generation layer provided on the conductive support; and a charge transport layer containing a charge transport material, a binder resin, and a highly branched polymer having a long-chain alkyl group or an alicyclic group, provided on the charge generation layer as an outermost layer. The electrophotographic photoconductor has excellent contamination resistance against sebum or the like, stable electrical characteristics even upon repeated use, as well as superior transfer resistance and gas resistance. A method for producing the electrophotographic photoconductor is disclosed, as well as an electrophotographic apparatus including the electrophotographic photoconductor.

Abstract: An electrophotographic photosensitive member capable of preventing the occurrence of interference fringe patterns when the member is installed in a device using coherent light as exposure light, without exerting a negative influence on electric characteristics, is disclosed. The electrophotographic photosensitive member includes an electrically conductive substrate; a photosensitive layer provided on the electrically conductive substrate; and an intermediate layer interposed between the photosensitive layer and the electrically conductive substrate. The intermediate layer is composed of a cyanine dye having a maximum absorption wavelength within a range of exposure light source wavelength of ±50 nm; metal oxide fine particles; and a thermosetting resin as a binder resin. The photosensitive layer may be a laminated photosensitive layer including a charge generating layer and a charge transport layer. An image forming apparatus that includes the electrophotographic photosensitive member is also disclosed.

Abstract: An electrophotographic photoconductor includes a conductive support; a charge generation layer provided on the conductive support; and a charge transport layer containing a charge transport material, a binder resin, and a highly branched polymer having a long-chain alkyl group or an alicyclic group, provided on the charge generation layer as an outermost layer. The electrophotographic photoconductor has excellent contamination resistance against sebum or the like, stable electrical characteristics even upon repeated use, as well as superior transfer resistance and gas resistance. A method for producing the electrophotographic photoconductor is disclosed, as well as an electrophotographic apparatus including the electrophotographic photoconductor.

Abstract: An electrophotographic photoconductor includes a conductive support; and a photoconductive layer that contains at least a charge generation material, a hole transport material, an electron transport material and a binder resin, and that is provided on the conductive support, wherein the photoconductive layer has an outermost layer that contains a charge generation material, a hole transport material, an electron transport material, a binder resin and a highly branched polymer that is obtained by polymerizing, in the presence of a polymerization initiator, a monomer having, in a molecule, two or more radically polymerizable double bonds and a monomer having, in a molecule, a long-chain alkyl group or an alicyclic group and at least one radically polymerizable double bond. The electrophotographic photoconductor exhibits superior operational stability and stably high image quality, without problems with image memory, a contact member, or image defects due to cracks caused by contamination by oils/fats or sebum.

Abstract: A layered, positively-charged electrophotographic photoreceptor, a method for manufacturing the photoreceptor and an electrophotographic apparatus using the photoreceptor are disclosed. The layered, positively-charged electrophotographic photoreceptor includes a conductive support on which is provided a sequential stack composed of a charge transport layer containing at least a first hole transport material and a first binder resin; and a charge generation layer containing at least a charge generation material, a second hole transport material, an electron transport material, and a second binder resin, wherein the charge generation layer and the charge transport layer have a total amount of residual solvents that is 50 ?g/cm2 or less. The photoreceptor is highly sensitive, highly durable, and has excellent image qualities including low image defects from cracks generated due to image memory or contact contamination.

Abstract: In an electrophotographic photoreceptor having a photosensitive layer on an electroconductive substrate, the photosensitive layer is a positive-charging laminate comprising at least a charge transport layer and a charge generating layer laminated in that order, with the charge generating layer containing at least a resin binder, a charge generating agent, a space filler and an electron transport agent, while the charge transport layer contains at least, as a resin binder, polystyrene and a hole transport agent, and mineral oil of the charge transport layer is in an amount of 1% by mass or less of an amount of polystyrene. Thus, a highly durable and economic positive-charging multilayer electrophotographic photoreceptor and a manufacturing method therefor may be achieved.

Abstract: A positive-charging electrophotography photoreceptor includes a laminated structure having a conductive supporting member, a charge transport layer formed of at least a hole transport material and a first binder resin, and a charge generation layer formed of at least a charge generation material, hole transport material, electron transport material, and second binder resin. The charge transport layer is disposed between the conductive supporting member and the charge generation layer. The content of the charge generation material in the charge generation layer is in a range exceeding 0.7 wt % and less than 3.0 wt % of the charge generation layer.

Abstract: In an electrophotographic photoreceptor having a photosensitive layer on an electroconductive substrate, the photosensitive layer is a positive-charging laminate comprising at least a charge transport layer and a charge generating layer laminated in that order, with the charge generating layer containing at least a resin binder, a charge generating agent, a space filler and an electron transport agent, while the charge transport layer contains at least, as a resin binder, polystyrene and a hole transport agent, and mineral oil of the charge transport layer is in an amount of 1% by mass or less of an amount of polystyrene. Thus, a highly durable and economic positive-charging multilayer electrophotographic photoreceptor and a manufacturing method therefor may be achieved.

Abstract: An electrophotographic positively charged toner and method for its manufacture. The toner includes a core toner that has a binder resin, a wax, a colorant and a charge control agent as its principal component materials. The core toner is spherified through heat treatment. The toner also includes at least fine silica particles as an external additive. The charge control agent contains a resin having a quaternary ammonium salt group as a functional group and a nigrosine dye. Even if after kneading, pulverization and classification, the toner is made spherical by melting the surfaces of the particles in a hot air current, the charge control agent is not coated and hence the charging ability thereof is not reduced.

Abstract: A dust-proof tube for a photosensor including of a cylindrical portion having a thick wall and substantially the same length as that of the photosensor, the inner diameter of the cylindrical portion being substantially equal to the outer diameter of the photosensor so that the cylindrical portion can receive the photosensor sealingly, and a frustum portion integrally formed with the cylindrical portion and extending from the end of the cylindrical portion, the cylindrical portion and the frustum portion being made of elastic material.

Abstract: A circulation-type bill receiving and dispensing machine has a receiving mode, a dispensing mode and a distributing mode. Two sets of dealing part mechanisms are provided for permitting two tellers to simultaneously use the machine. Each dealing part mechanism is in communication with a commonly used received bill handling route for received mode and a commonly used dispensing bill handling route for dispensing mode. The received bill handling route is in communication with boxes for accumulating bills therein and sending the bills therefrom. The boxes are in communication with the dispensing bill handling route.

Abstract: An automatic money receiving and disbursing machine having the functions of receiving money from customers and disbursing money to customers from a box disposed within the machine. The machine is provided with a circulation path in communication with a transacting section to receive or disburse the notes therethrough. A portion of the circulation path is in communication with the disbursing box for receiving the notes disbursed from the disbursing box. Another portion of the circulation path is in communication with a note receiving box. A discrimination section is provided in the circulation path to discriminate the notes received or the notes disbursed. In the disbursing mode, when an abnormal note is found by discrimination, all the notes are discriminated again by passing the notes through the discrimination section via the circulation path.

Abstract: An automatic money receiving and disbursing machine has two dealing openings through one of which the notes are received in the machine or disbursed from the machine. A discriminating section is provided for discriminating the received notes or the disbursed notes. Discrimination made through the discriminating section is made in a high grade or in a low grade. Two accumulating sections are provided between two dealing openings on a delivery section. These accumulating sections are used to temporarily store the notes. A receiving and disbursing box is provided for receipt of a specific kind of note. A disbursing box and a reject box are also provided.

Abstract: A paper sheet accumulator assembly for receiving paper sheets to accumulate the same to be ready for collective dispensation. The paper sheet accumulator assembly includes a plurality of paddle wheels each having a plurality of paddles overlapping each other. Paper sheets fed by a conveyer between the paddles as the paddle wheels rotate. A guide belt assembly is provided adjacent to the paddle wheels to restrain the free movement of the trailing ends of the paper sheets and to prevent the paper sheets from slipping out the paddle wheels. The guide belt assembly is driven to move at a speed substantially equal to the circumferential speed of the trailing free ends of the paddles so as to facilitate smooth travel of the paper sheets carried by the paddle wheels. The paper sheet accumulator assembly further includes a scraper plate disposed below the paddle wheels for scraping the paper sheets away from the paddle wheels, and a carrier plate for receiving the paper sheets scraped from the paddle wheels.