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Having discharger (e.g., separation)

Subclass of:

399 - Electrophotography

399130000 - IMAGE FORMATION

399297000 - Transfer

399310000 - Electrostatic

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
399315000 Having discharger (e.g., separation) 11
20090116883DISCHARGE DEVICE AND IMAGE FORMING APPARATUS - A discharge device includes: a discharge unit that discharges a recording medium in a discharge direction; and a forming unit arranged downstream of the discharge unit and adapted to form an oblique corrugation with respect to the discharge direction on the recording medium.05-07-2009
20090311014IMAGE-BEARING MEMBER PROTECTING AGENT, PROTECTIVE LAYER FORMING DEVICE, IMAGE FORMING METHOD, IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE - To provide an image-bearing member protecting agent used in an image forming method which includes applying or attaching the agent onto a surface of an image bearing member, the agent including: a fatty acid metal salt and boron nitride, wherein the boron nitride includes secondary particles composed of aggregated fine crystals, and wherein the crystals have an average primary particle diameter of 0.1 μm to 1.0 μm and an average secondary particle diameter of 3.0 μm to 14.0 μm.12-17-2009
20100040396IMAGE FORMING APPARATUS - The image forming apparatus may include: a plurality of image bearing members; an exposure unit; a developing unit; a transfer unit including a plurality of transfer rollers and a plurality of erasers each disposed between the transfer rollers; and a fixing unit. The eraser may be disposed in a zone Z02-18-2010
20110103850IMAGE FORMING APPARATUS - An image forming apparatus including: an image bearing member configured to bear the toner image; a transfer element configured to transfer the toner image to the sheet; a first application element configured to apply a transfer voltage to the transfer element; a separator configured to separate the sheet from the image bearing member, the separator including a separation electrode configured to discharge an electrical current and the separation electrode including first and second separation electrodes aligned along the transfer element; and a partition configured to project between the transfer element and the separator so as to allow a current to flow from the transfer element to the first separation electrode while the partition suppresses a current flowing from the transfer element to the second separation electrode.05-05-2011
20120099907IMAGE FORMING APPARATUS - An image forming apparatus includes an image bearing member; a stretched rotatable belt member; a transfer member for forming a toner image onto a recording material carried on the belt member; a separation roller, for stretching the belt member; a push-up device for pushing up a belt surface of the belt member; a pre-separation charging device, for electrically charging the recording material with a voltage of an opposite polarity to a normal charge polarity of a toner; and an execution portion for executing an operation in which the recording material charged by the voltage to the pre-separation charging means is separated from the belt member by pushing up the belt member by the push-up device.04-26-2012
20120107025IMAGE FORMING APPARATUS - An image forming apparatus includes an image forming unit having an image supporting member for supporting a developer image; a transfer device for transferring the developer image on the image supporting member to a front surface of a recording medium; a neutralizing device disposed on a downstream side of the transfer device in a transportation direction of the recording medium and a side of a backside surface of the recording medium for neutralizing the recording medium with the developer image thus transferred; and a blocking member disposed at a position to face the neutralizing device for blocking the image supporting member from the neutralizing device.05-03-2012
20120114399IMAGE FORMING APPARATUS AND CHARGE ELIMINATING DEVICE - An image forming apparatus includes a toner image forming unit that forms a toner image, a transfer unit that transfers the toner image onto a recording material, a fixing unit that fixes the toner image to the recording material, a transport unit that includes a rotary member that transports the recording material from the transfer unit to the fixing unit and a recording material guiding portion that has first protruding portions extending along a recording material transport direction, and a charge eliminating unit that is disposed between the transfer unit and transport unit and eliminates charge on the recording material. The charge eliminating unit includes a first charge eliminating portion having pointed projections, and a second charge eliminating portion that is disposed on a downstream side of the first charge eliminating portion in the recording material transport direction and is disposed to be out of contact with the recording material.05-10-2012
20130078014IMAGE FORMING APPARATUS - An image forming apparatus that includes a carrier that carries a toner image, a transfer member electrically-grounded and located on outer surface of the carrier, a facing transfer member that faces an inner surface of the carrier, and a charge eliminator located downstream from the transfer member in a direction of recording medium movement and that eliminates electric charge from the recording medium. The facing transfer member has a transfer bias applied thereto that is an alternating voltage including a superimposed voltage of a direct current that has a same polarity as a toner image. The charge eliminator has one of a first alternating current voltage and a second alternating current voltage.03-28-2013
20150110528STATIC ELIMINATOR AND IMAGE FORMING APPARATUS INCLUDING SAME - A static eliminator includes a plurality of static eliminating needles, a holder including a retaining surface on which the plurality of static eliminating needles is held, a plurality of partitions, and a restriction member including a first end portion having a restriction surface at a static eliminating needle side to contact the static eliminating needles. A length of the plurality of static eliminating needles from the first end portion of the restriction member as an origin to a leading end of the plurality of static eliminating needles is shorter than a distance from the origin to an end surface of the plurality of partitions within the range of movement of the plurality of static eliminating needles from the retaining surface up to a position five degrees (5°) below the restriction surface in an angle between the retaining surface and an imaginary plane including the restriction surface.04-23-2015
20160124352DESTATICIZING DEVICE AND IMAGE FORMING APPARATUS - A destaticizing device includes: a first destaticizing member that is disposed at a downstream side in a conveyance direction of a medium relatively to a transfer area where an image held in a surface of an image holder is transferred to the medium, the first destaticizing member being grounded and destaticizing the medium; and a second destaticizing member that is disposed adjacent to the first destaticizing member with respect to the conveyance direction of the medium, the second destaticizing member being grounded and destaticizing the medium.05-05-2016
20160154345IMAGE FORMING APPARATUS AND METHOD OF SEPARATING RECORDING MEDIUM06-02-2016

Patent applications in class Having discharger (e.g., separation)

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