Abstract: A device is provided with a potential noise radiating source capable of radiating potential noise, a potential noise receiving portion capable of receiving the potential noise and an electromagnetic interference suppression body. The electromagnetic interference suppression body is made by binding flaky soft magnetic metal powder with a binding component and has a sheet-like shape. The electromagnetic interference suppression body is formed with a plurality of slits. The electromagnetic interference suppression body is provided to straddle the potential noise radiating source and the potential noise receiving portion.

Abstract: A silica composite particle includes a silica particle and a compound in which a metal atom selected from the group consisting of Ti, Al, Zr, V, and Mg bonds to an organic group through oxygen, the silica particle being surface-treated with the compound. A coverage of a surface of the silica composite particle with the metal atom is 0.01 at % or more and 30 at % or less. When a binding energy peak of O1s in an oxide of the metal atom is assumed to be MO1s, a binding energy peak of O1s in SiO2 is assumed to be SO1s, and a binding energy peak of O1s in the silica composite particle is assumed to be MSO1s, the binding energy peaks being detected by X-ray photoelectron spectroscopy, the formula 0.000452×X2?0.059117×X+SO1s<MSOs?(SO1s?MO1s)/100×X+SO1s is satisfied.

Abstract: The purpose of the present invention is to provide an active ray-curable inkjet ink capable of further enhancing gloss uniformity, surface curability, and scratch resistance of a formed image. The purpose is achieved by an active ray-curable inkjet ink containing a polymerization initiator, a photopolymerizable compound, and a gelling agent, and that undergoes a reversible sol-gel phase transition by temperature change. The inkjet ink contains a polymerization initiator with a molecular weight of 360 or more, and a polyfunctional photopolymerizable compound. The inkjet ink contains 3.0 mass % or more and less than 8.0 mass % of the polymerization initiator with a molecular weight of 360 or more, 1.0 mass % or more and less than 5.0 mass % of the gelling agent, less than 0.1 mass % of the initiator with a molecular weight of 360 or more, and less than 5.0 mass % of the monofunctional photopolymerizable compound.

Abstract: A device is provided with a PWM signal generating circuit, a gate driver and a transmission line connecting them. The transmission line transmits a PWM signal output from the PWM generator as an input signal for the gate driver. A noise suppression member is provided to at least a part of a periphery of the transmission line. The noise suppression member has a structure that magnetic powder is dispersed in a binder and has an imaginary part ?? of a complex magnetic permeability that is greater than or equal to 5 and smaller than or equal to 30 in a range of 500 MHz to 3 GHz. The noise suppression member has a thickness t greater than or equal to 20 ?m. The noise suppression member is disposed apart from a conducting wire of the transmission line by a distance greater than 0.05 mm or smaller than or equal to 5 mm.

Abstract: An electrostatic charge image developer includes: toner particles; silica particles treated with a silicone oil, which are externally added to the toner particles; and a carrier, wherein a volume average particle diameter of the carrier is equal to or greater than 20 ?m and smaller than 30 ?m, and a quantity ratio of an elemental silicon derived from a silicone oil and an elemental silicon derived from silica which are present on the surface of the carrier (silicone oil-derived elemental silicon/silica-derived elemental silicon) is in a range of 0.05 to 0.2.

Abstract: Purpose is to provide an inkjet recording method for forming high-quality color image on a thick recording medium having low thermal conductance rate. The present invention is a single-pass inkjet recording method using an ink set including at least two active ray-curing color inks, and a recording medium having thermal conductivity of less than 0.10 W/(m·K) and thickness of 0.4 mm or more. The ink set containing two color inks satisfy only condition (a), and the ink set containing three or more color inks satisfy conditions (a) and (b): (a) most downstream color ink has a gelation temperature which is 3.0° C. to 15.0° C. higher than that of most upstream color ink, and (b) second or subsequent color ink from the most upstream position in conveyance direction has a gelation temperature which is the same as or higher than that of an adjacent color ink at the upstream position.

Abstract: An image forming device includes an image carrier, a charging device that charges the surface of the image carrier, an electrostatic image forming device that forms an electrostatic image on the surface of the image carrier, a developing device that uses a developer containing toner particles and external additives adhering to the surface of the toner particle to develop the electrostatic image into a toner image, a transfer device that transfers the toner image to a recording medium, a cleaning device having a blade that cleans off residual toner from the image carrier, a suction device that suctions all or part of residual toner excepting the external additives released from the surface of the toner particles, and a fixing device that fixes the toner image to the recording medium.

Abstract: An image forming apparatus includes a charging unit that includes a conductive member which contacts with a surface of an image holding member, and that applies only a DC voltage to the conductive member to charge the surface of the image holding member; and a cleaning unit that has a blade which contacts with the surface of an image holding member and cleans the surface with the blade after a toner image is transferred onto a recording medium, wherein a developer includes toner particles, silica particles treated with a silicone oil, and a carrier, a volume average particle diameter of the carrier is from 20 ?m to 35 ?m, and a quantity ratio of an elemental silicon derived from a silicone oil and an elemental silicon derived from silica which are present on the surface of the carrier is from 0.05 to 0.2.

Abstract: The purpose of the present invention is to provide an active ray-curable inkjet ink capable of further enhancing gloss uniformity, surface curability, and scratch resistance of a formed image. The purpose is achieved by an active ray-curable inkjet ink containing a polymerization initiator, a photopolymerizable compound, and a gelling agent, and that undergoes a reversible sol-gel phase transition by temperature change. The inkjet ink contains a polymerization initiator with a molecular weight of 360 or more, and a polyfunctional photopolymerizable compound. The inkjet ink contains 3.0 mass % or more and less than 8.0 mass % of the polymerization initiator with a molecular weight of 360 or more, 1.0 mass % or more and less than 5.0 mass % of the gelling agent, less than 0.1 mass % of the initiator with a molecular weight of 360 or more, and less than 5.0 mass % of the monofunctional photopolymerizable compound.

Abstract: A device is provided with a potential noise radiating source capable of radiating potential noise, a potential noise receiving portion capable of receiving the potential noise and an electromagnetic interference suppression body. The electromagnetic interference suppression body is made by binding flaky soft magnetic metal powder with a binding component and has a sheet-like shape. The electromagnetic interference suppression body is formed with a plurality of slits. The electromagnetic interference suppression body is provided to straddle the potential noise radiating source and the potential noise receiving portion.

Abstract: An image forming apparatus includes a charging unit that includes a conductive member which contacts with a surface of an image holding member, and that applies only a DC voltage to the conductive member to charge the surface of the image holding member; and a cleaning unit that has a blade which contacts with the surface of an image holding member and cleans the surface with the blade after a toner image is transferred onto a recording medium, wherein a developer includes toner particles, silica particles treated with a silicone oil, and a carrier, a volume average particle diameter of the carrier is from 20 ?m to 35 ?m, and a quantity ratio of an elemental silicon derived from a silicone oil and an elemental silicon derived from silica which are present on the surface of the carrier is from 0.05 to 0.2.

Abstract: An electrostatic charge image developer includes: toner particles; silica particles treated with a silicone oil, which are externally added to the toner particles; and a carrier, wherein a volume average particle diameter of the carrier is equal to or greater than 20 ?m and smaller than 30 ?m, and a quantity ratio of an elemental silicon derived from a silicone oil and an elemental silicon derived from silica which are present on the surface of the carrier (silicone oil-derived elemental silicon/silica-derived elemental silicon) is in a range of 0.05 to 0.2.

Abstract: The present invention addresses the problem of providing an ink-jet recording method with which it is possible to sufficiently remove air bubbles contained in an actinic-ray-curable ink-jet ink and to heighten the delivery stability and curability of the ink. The ink-jet recording method employs an actinic-ray-curable ink-jet ink which comprises a colorant, a photopolymerization initiator, and a photopolymerizable compound. The ink-jet recording method comprises: a step in which the ink-jet ink is introduced into a depressurized space within an ink-jet recorder and deaerated at an ink temperature which is 50° C. or higher but lower than 120° C.; a step in which droplets of the deaerated ink-jet ink are ejected from the recording head and delivered to a recording medium; and a step in which the ink droplets delivered to the recording medium are irradiated with actinic rays to cure the ink droplets.

Abstract: A powder container includes a container chamber that contains powder; a transporting member that transports the powder in the container chamber; an opening that is provided in a wall of the container chamber and through which the powder is discharged out of the container chamber as the transporting member transports the powder; and a closing member that closes a lower portion of the opening and moves vertically relative to the opening in a direction opposite to a direction of vertical movement of the opening due to tilting of the container chamber.

Abstract: An image forming device includes an image carrier, a charging device that charges the surface of the image carrier, an electrostatic image forming device that forms an electrostatic image on the surface of the image carrier, a developing device that uses a developer containing toner particles and external additives adhering to the surface of the toner particle to develop the electrostatic image into a toner image, a transfer device that transfers the toner image to a recording medium, a cleaning device having a blade that cleans off residual toner from the image carrier, a suction device that suctions all or part of residual toner excepting the external additives released from the surface of the toner particles, and a fixing device that fixes the toner image to the recording medium.

Abstract: A powder container includes a container chamber that contains powder; a transporting member that transports the powder in the container chamber; an opening that is provided in a wall of the container chamber and through which the powder is discharged out of the container chamber as the transporting member transports the powder; and a closing member that closes a lower portion of the opening and moves vertically relative to the opening in a direction opposite to a direction of vertical movement of the opening due to tilting of the container chamber.

Abstract: The purpose of the present invention is to provide an inkjet ink degassing method that can sufficiently remove bubbles contained in active ray curable inkjet ink and improve dispensing stability and curability. The inkjet ink degassing method according to the present invention comprises a step of using hollow fibers to degas active ray curable inkjet ink that has been heated to between 60° C. and 120° C. and contains a colorant, a photopolymerizable compound, and a photoinitiator.

Abstract: The present invention addresses the problem of providing an ink-jet recording method with which it is possible to sufficiently remove air bubbles contained in an actinic-ray-curable ink-jet ink and to heighten the delivery stability and curability of the ink. The ink-jet recording method employs an actinic-ray-curable ink-jet ink which comprises a colorant, a photopolymerization initiator, and a photopolymerizable compound. The ink-jet recording method comprises: a step in which the ink-jet ink is introduced into a depressurized space within an ink-jet recorder and deaerated at an ink temperature which is 50° C. or higher but lower than 120° C.; a step in which droplets of the deaerated ink-jet ink are ejected from the recording head and delivered to a recording medium; and a step in which the ink droplets delivered to the recording medium are irradiated with actinic rays to cure the ink droplets.

Abstract: A unit for an image forming apparatus includes an image holding member; a developing unit that includes a developing roll, a voltage applying section, and a regulating member for regulating a thickness of an electrostatic charge image developer held on the developing roll; and a cleaning unit that includes a cleaning blade which contacts with the image holding member, wherein the developing roll is provided with an interval of 100 ?m to 300 ?m with respect to the image holding member, the regulating member is provided with an interval of 0.1 mm to 0.6 mm with respect to the developing roll, the voltage applying section applies a specific alternating voltage to the developing roll, and a product of the number average particle diameter [nm] of the inorganic particles and the interval [mm] of the regulating member falls within the range of from 26 to 81.

Abstract: A unit for an image forming apparatus includes a developing unit that includes a developing roll and a voltage applying section, and a cleaning unit that includes a cleaning blade which contacts with the image holding member and cleans a surface of the image holding member, wherein the developing roll is provided with an interval of 100 ?m to 300 ?m with respect to the image holding member, and holds an electrostatic charge image developer including a carrier and a toner whose a volume average particle diameter is 2 ?m to 5 ?m on a surface of the developing roll, and the voltage applying section applies an alternating voltage in which an alternating-current component is applied on a direct current component to the developing roll, the following expression being satisfied: 34?Toner Volume Average Particle Diameter [?m]×Alternating-Current Component Frequency [kHz]?60.