摘要:
A disclosed development device includes: a latent image carrier; a conveying member disposed so as to face the latent image carrier, the conveying member having plural electrodes insulated from one another and arranged at predetermined intervals so as to generate an electric field for moving toner on the conveying member; a voltage application unit applying a voltage of n phases (n is a positive integer not less than one) to the electrodes so as to form a cloud of the toner and the toner is adhered to the latent image carrier so as to form a visualized toner image; a toner supply unit supplying the toner to the conveying member; and a height adjusting member adjusting a uniform height for a toner layer of the toner immediately before a development area on the conveying member in which development is performed.
摘要:
A disclosed development device includes: a latent image carrier; a conveying member disposed so as to face the latent image carrier, the conveying member having plural electrodes insulated from one another and arranged at predetermined intervals so as to generate an electric field for moving toner on the conveying member; a voltage application unit applying a voltage of n phases (n is a positive integer not less than one) to the electrodes so as to form a cloud of the toner and the toner is adhered to the latent image carrier so as to form a visualized toner image; a toner supply unit supplying the toner to the conveying member; and a height adjusting member adjusting a uniform height for a toner layer of the toner immediately before a development area on the conveying member in which development is performed.
摘要:
An apparatus for developing a latent image on a latent image carrier includes a toner carrier and multiple electrodes arranged at intervals on a surface of the toner carrier. A potential difference is formed between even-numbered electrodes and odd-numbered electrodes of the electrodes by applying a first pulse voltage to the even-numbered electrodes and a second pulse voltage to the odd-numbered electrodes so that toner on the surface of the toner carrier moves back and forth between the electrodes, where the first and second pulse voltages are in different phases, and the toner moving back and forth between the electrodes is conveyed to a position facing the latent image carrier by movement of the surface of the toner carrier and thereby caused to adhere to the latent image on the latent image carrier.
摘要:
A development apparatus using a hopping method and an image formation apparatus including the development apparatus are disclosed. The development apparatus includes a toner supporting object for supporting and conveying a toner by a movement of the toner supporting object, while the toner is hopping on a surface of the toner supporting object by an electric field; a regulating member made of a flexible material for constituting a toner thickness regulation position; a latent image supporting object for supporting a latent image; and a development position, which is a position of the toner supporting object, that counters the latent image supporting object; wherein the toner is conveyed through the regulation position to the development position where the toner is adhered to the latent image, and wherein one end of the regulating member is supported, and the other end contacts the toner supporting object.
摘要:
A development apparatus using a hopping method and an image formation apparatus including the development apparatus are disclosed. The development apparatus includes a toner supporting object for supporting and conveying a toner by a movement of the toner supporting object, while the toner is hopping on a surface of the toner supporting object by an electric field; a regulating member made of a flexible material for constituting a toner thickness regulation position; a latent image supporting object for supporting a latent image; and a development position, which is a position of the toner supporting object, that counters the latent image supporting object; wherein the toner is conveyed through the regulation position to the development position where the toner is adhered to the latent image, and wherein one end of the regulating member is supported, and the other end contacts the toner supporting object.
摘要:
An apparatus for developing a latent image on a latent image carrier includes a toner carrier and multiple electrodes arranged at intervals on a surface of the toner carrier. A potential difference is formed between even-numbered electrodes and odd-numbered electrodes of the electrodes by applying a first pulse voltage to the even-numbered electrodes and a second pulse voltage to the odd-numbered electrodes so that toner on the surface of the toner carrier moves back and forth between the electrodes, where the first and second pulse voltages are in different phases, and the toner moving back and forth between the electrodes is conveyed to a position facing the latent image carrier by movement of the surface of the toner carrier and thereby caused to adhere to the latent image on the latent image carrier.
摘要:
An image formation apparatus using a hopping method is disclosed. Toner provided on a moving surface of a toner supporting object is conveyed, while the toner is hopping on the surface due to an electric field, to a position that counters a latent image supporting object by movement of the surface, and is adhered to a latent image formed on the latent image supporting object. The image formation apparatus includes a supply member for scooping up the toner in a toner container by plural hollows formed on a surface of the supply member with endless movement of the surface of the supply member, for conveying the toner to a position where the supply member contacts the toner supporting object, and for providing the toner to the surface of the toner supporting object.
摘要:
A developing device configured to form toner cloud without making toner particles adhere to the electrostatic transport substrate having electrodes. By applying periodical voltages to electrodes, electrically charged toner particles float on the electrostatic transport substrate. Also, a rotatable toner transporter designed to carry toner particles floating on the electrostatic transport substrate. Also, a two-component developer bearer including a sleeve with magnets on which the two-component developer is borne. The two-component developer borne on the sleeve is sent to the toner transporter by rotation of the sleeve. There, toner particles are transported to the toner transporter because of the electric bias applied between the two-component developer bearer and the toner transporter. Toner particles electrically floating on the toner transporter are sent to the photoconductor for development.
摘要:
A developing device configured to form toner cloud without making toner particles adhere to the electrostatic transport substrate having electrodes. By applying periodical voltages to electrodes, electrically charged toner particles float on the electrostatic transport substrate. Also, a rotatable toner transporter designed to carry toner particles floating on the electrostatic transport substrate. Also, a two-component developer bearer including a sleeve with magnets on which the two-component developer is borne. The two-component developer borne on the sleeve is sent to the toner transporter by rotation of the sleeve. There, toner particles are transported to the toner transporter because of the electric bias applied between the two-component developer bearer and the toner transporter. Toner particles electrically floating on the toner transporter are sent to the photoconductor for development.
摘要:
A developing unit for transferring toner onto a latent image on an image carrier so as to develop the latent image includes a toner carrier, an electric field generator and a separating force applicator. The toner carrier including a plurality of electrodes disposed along the surface thereof and insulated from each other transports the toner to a developing area facing the image carrier. The electric field generator applies a periodic voltage to the plurality of electrodes of the toner carrier so that an electric field is generated on the toner carrier surface to cause the toner charged to a given polarity and borne on the surface of the toner carrier to hop. The separating force applicator applies a separating force to separate the toner on the toner carrier from the surface thereof outside the developing area. The separating force applicator is disposed separately from the electric field generator.