Abstract: Development device includes an electrostatic conveyance device, a supply device, and a collection device. The electrostatic conveyance device moves toner on a surface thereof in a toner conveyance direction by a phase-shifting electric field. The surface has upstream and downstream side ends where the phase-shifting electric field starts and ends, respectively. The supply device opposes the upstream side end to supply the toner onto the electrostatic conveyance surface. The toner supplied by the supply device onto the electrostatic conveyance surface is moved by the phase-shifting electric field to a development area of the electrostatic conveyance device opposing an image bearing. The collection device opposes the downstream side end and collects the toner moved on the electrostatic conveyance surface to a downstream side of the development area of the electrostatic conveyance device in the toner conveyance direction without contributing to the development.

Abstract: An image forming apparatus including an image carrier configured to have a latent image formed thereon, a developer carrier configured to supply toner, and a conveying member configured to receive toner from the developer carrier and to convey the toner to the image carrier. The conveying member includes first and second electrodes disposed a predetermined distance from one another. A first voltage application unit is configured to apply a first voltage to the developer carrier. A second voltage application unit is configured to apply a second voltage to the conveying member such that a ratio of a potential difference between the conveying member and the developer carrier to a distance between the conveying member and the developer carrier is less than a ratio of the second voltage to the predetermined distance.

Abstract: A classifier having a simple constitution for classifying powder with a high accuracy is provided. The classifier is provided with a transfer board having a plurality of electrodes for generating electric fields for transferring and hopping the powder by an electrostatic force. The classifier is further provided with an opposite roller generating an electric field for transporting and attaching the powder (toner) transferred and hopped on the transfer board to the opposite roller, which is opposite to the transfer board.

Abstract: A cleaning apparatus is disclosed that includes a blade chip having a rubber plate member and a reinforcing plate member that are joined together, a supporting plate supporting the blade chip, and a holder pressing the blade chip against the supporting plate.

Abstract: A developing device including a latent image supporter. Powder is adhered on the latent image supporter to develop a latent image on the latent image supporter and a transporting member is arranged opposite to the latent image supporter. A plurality of electrodes are formed in the transporting member for generating a traveling-wave electric field to move the powder, and n-phase voltages are applied to the electrodes of the transporting member to form an electric field in a first direction so that the powder moves towards the latent image supporter at an image portion of the latent image and in a second direction so that the powder moves in a direction opposite to the latent image supporter at a non-image portion of the latent image.

Abstract: An ink jet recording apparatus performs a print operation by controlling an ink jet recording head to eject ink drops there from against front and back surfaces of a recording sheet at a print position. The apparatus includes a transporting mechanism for transporting a portion of the recording sheet to a location outside of the apparatus after a completion of the print operation on the front surface of the recording sheet and just before printing of the back surface of the recording sheet.

Abstract: A developing device including a latent image supporter. Powder is adhered on the latent image supporter to develop a latent image on the latent image supporter and a transporting member is arranged opposite to the latent image supporter. A plurality of electrodes are formed in the transporting member for generating a traveling-wave electric field to move the powder, and n-phase voltages are applied to the electrodes of the transporting member to form an electric field in a first direction so that the powder moves towards the latent image supporter at an image portion of the latent image and in a second direction so that the powder moves in a direction opposite to the latent image supporter at a non-image portion of the latent image.

Abstract: A center beam which is formed out of a thin film constituted to be combined with a light reflection film provided on one surface of the center beam, which has both ends fixed and which is deformed by an electronic force; a substrate electrode which is opposed to the center beam through a gap formed on the other surface of the center beam; an opposed surface which is a surface of the substrate electrode opposed to the center beam modulating the incident light on the light reflection film, the opposed surface restricting deformation of the center beam due to application of a driving voltage to the substrate electrode by abutting on the center beam; and a substrate which has the substrate electrode having the opposed surface, formed in a concave section, and which holds a to-be-held section of the center beam, are provided.

Abstract: A center beam which is formed out of a thin film constituted to be combined with a light reflection film provided on one surface of the center beam, which has both ends fixed and which is deformed by an electronic force; a substrate electrode which is opposed to the center beam through a gap formed on the other surface of the center beam; an opposed surface which is a surface of the substrate electrode opposed to the center beam modulating the incident light on the light reflection film, the opposed surface restricting deformation of the center beam due to application of a driving voltage to the substrate electrode by abutting on the center beam; and a substrate which has the substrate electrode having the opposed surface, formed in a concave section, and which holds a to-be-held section of the center beam, are provided.

Abstract: An electrostatic transportation device is provided with a transporting base plate having a plurality of electrodes which generate an electric field which performs transporting and hopping of fine particles by an electrostatic force, wherein a width of each of the electrodes in a travelling direction of the fine particles is set to be in a range of 1 time to 20 times an average particle diameter of the fine particles, a pitch between the electrodes in the travelling direction of the fine particles is set to be in a range of 1 time to 20 times the average particle diameter of the fine particles, and driving waveforms of n phases or more (n is an integer of 3 or more) are applied to respective electrodes.

Abstract: A classifier having a simple constitution for classifying powder with a high accuracy is provided. The classifier is provided with a transfer board having a plurality of electrodes for generating electric fields for transferring and hopping the powder by an electrostatic force. The classifier is further provided with an opposite roller generating an electric field for transporting and attaching the powder (toner) transferred and hopped on the transfer board to the opposite roller, which is opposite to the transfer board.

Abstract: A developing device is provided. The developing device comprises a latent image supporter, wherein powder is adhered on the latent image supporter to develop a latent image on the latent image supporter; a transporting member arranged opposite to the latent image supporter; and a plurality of electrodes formed in the transporting member for generating a traveling-wave electric field to move the powder, wherein n-phase voltages are applied to the electrodes of the transporting member to form an electric field in a first direction so that the powder moves towards the latent image supporter at an image portion of the latent image and in a second direction so that the powder moves in a direction opposite to the latent image supporter at a non-image portion of the latent image.

Abstract: An image forming apparatus is disclosed that is able to improve transfer efficiency and image quality. The image forming apparatus includes an organic photo-conductor with latent images formed thereon, and a developing unit for developing the latent images. The organic photo-conductor has surface friction coefficient less than or equal to 0.3. The developing unit develops the latent images while transporting a two-composition developing agent including a toner T and a carrier C by a traveling wave electric field.

Abstract: A classifier having a simple constitution for classifying powder with a high accuracy is provided. The classifier is provided with a transfer board having a plurality of electrodes for generating electric fields for transferring and hopping the powder by an electrostatic force. The classifier is further provided with an opposite roller generating an electric field for transporting and attaching the powder (toner) transferred and hopped on the transfer board to the opposite roller, which is opposite to the transfer board.

Abstract: A developing device including a latent image supporter. Powder is adhered on the latent image supporter to develop a latent image on the latent image supporter and a transporting member is arranged opposite to the latent image supporter. A plurality of electrodes are formed in the transporting member for generating a traveling-wave electric field to move the powder, and n-phase voltages are applied to the electrodes of the transporting member to form an electric field in a first direction so that the powder moves towards the latent image supporter at an image portion of the latent image and in a second direction so that the powder moves in a direction opposite to the latent image supporter at a non-image portion of the latent image.

Abstract: An image-forming device that is capable of minimizing toner charge deficiency while feeding an adequate amount of toner to an electrostatic toner transport substrate for transporting toner by an EH effect, having a first storage chamber for storing a mixture of toner and a friction-promoting substance; a second storage chamber; a first transport screw for stirring the mixture in the containers; a second transport screw; and a mesh provided to the first storage chamber; wherein a toner feeding unit is provided for sifting the toner in the mixture in the first storage chamber through the mesh and feeding the toner to a first electrostatic toner transport substrate (not pictured). A potential difference generator is also provided for creating an electrical potential difference between the first transport screw and the mesh, and between the mesh and the first electrostatic toner transport substrate.

Abstract: A cleaning apparatus is disclosed that includes a blade chip having a rubber plate member and a reinforcing plate member that are joined together, a supporting plate supporting the blade chip, and a holder pressing the blade chip against the supporting plate.

Abstract: A toner supply device for preventing adverse influence caused by a charging failure of toner without scattering toner and generating ozone due to corona discharge and realizing low potential development according to an ETH phenomenon. The toner supply device is provided with the specific electrostatic toner transport substrate on which a plurality electrodes are disposed.

Abstract: A cleaning unit for removing toner remaining on the surface of the image carrier of an image-forming apparatus is disclosed. The cleaning unit includes a vibration member, a blade member, and a driving part. The vibration member extends in the direction of the width of the image carrier, and has at least one vibration application part attached thereto. The blade member is attached to at least the end region of the vibration member, extending in the direction of the width of the image carrier. The driving part drives at least one vibration application part at a driving frequency that is a resonance frequency. The vibration member provides vibration to the blade member and a force to press the blade member against the image carrier.

Abstract: An ink jet recording apparatus performs a print operation by controlling an ink jet recording head to eject ink drops there from against front and back surfaces of a recording sheet at a print position. The apparatus includes a transporting mechanism for transporting a portion of the recording sheet to a location outside of the apparatus after a completion of the print operation on the front surface of the recording sheet and just before printing of the back surface of the recording sheet.