Abstract: A sheet accommodating apparatus includes a main body portion, a loading portion that is provided in the main body portion and supports a portion of a sheet loaded thereon from below, a lifting unit that lifts the loading portion, and a supporting portion that is connected to the main body portion and supports another portion of the sheet from below during a process in which the loading portion is lifted.

Abstract: A sheet container includes a housing, a stacking part provided in the housing so that recording sheets are stacked on the stacking part, a contact part to be brought into contact with edges of the recording sheets in a length direction on the stacking part in an attached state in which the contact part is attached into the housing, a connection member connected to the stacking part or the housing and having an extension part longer than the stacking part in the length direction, and a retreater that retreats the contact part in the attached state from the extension part with the connection member connected to the stacking part or the housing.

Abstract: A sheet accommodating apparatus includes a loading portion onto which a sheet is loaded, a lifting and lowering unit that lifts and lowers the loading portion, a raising portion that raises a sheet loading surface with respect to a lowermost lowering position of the loading portion and above which a portion of the sheet is loaded, and an extension portion that extends to a position outward of the loading portion from the raising portion side as seen in plan view and supports another portion of the sheet.

Abstract: A sheet feed device includes: a tray provided in a device body in a manner capable of being pulled out and having a loading part that is moved up and down; an extension part attached to the device body to support a portion of a sheet to be fed through the tray; a lifting mechanism that has a lifting/lowering part for moving the loading part up and down and a driving part for lifting and holding the loading part via the lifting/lowering part; and a disconnecting part that disconnects the lifting/lowering part and the driving part when an uncoupling operation is accepted in a state in which the tray is accommodated in the device body.

Abstract: An active ray-curable inkjet ink set according to the present invention is characterized by being composed of a white ink and a colored ink, each of which contains at least a photopolymerizable compound and a photopolymerization initiator.

Abstract: An electromagnetic interference suppressor is disposed so as to be effective for noise in a wide frequency band including a high frequency band. Provided is an electronic device including an electromagnetic interference suppressor; an interfering object configured to generate an electromagnetic wave; an interfered object to be affected by the electromagnetic wave; a substrate configured to mount thereon the interfering object and the interfered object; and the electromagnetic interference suppressor disposed in parallel to the substrate, and is disposed along only one of the interfering object and the interfered object. When an end portion of the interfering object opposed to the interfered object is defined as a first end portion, and an end portion of the interfered object opposed to the interfering object is defined as a second end portion, one end portion of the electromagnetic interference suppressor is disposed between the first end portion and the second end portion.

Abstract: An image forming method includes: discharging an inkjet actinic ray curable white ink containing an actinic ray polymerizable compound, a gelling agent, and titanium oxide from a nozzle of an inkjet head to attach the inkjet actinic ray curable white ink to a surface of a recording medium; irradiating the inkjet actinic ray curable white ink attached to the surface of the recording medium with an actinic ray to cure the inkjet actinic ray curable white ink; discharging an inkjet actinic ray curable ink containing an actinic ray polymerizable compound from a nozzle to attach the inkjet actinic ray curable ink to a surface of a white cured film obtained by curing the inkjet actinic ray curable white ink; and irradiating the inkjet actinic ray curable ink attached to the surface of the white cured film with an actinic ray to cure the inkjet actinic ray curable ink.

Abstract: The image forming method of the present invention includes first formation of an image, the formation including attaching a white ink containing an actinic radiation polymerizable compound and a white pigment through an inkjet head to a surface of a recording medium, first light exposure including the white ink attached to the surface of the recording medium with actinic radiation to cure or temporarily cure the white ink, second formation of an image, the formation including attaching an ink containing an actinic radiation polymerizable compound and a gelling agent through an inkjet head to a surface of a white cured film obtained by curing of the white ink, and second light exposure including irradiating the actinic radiation curable ink attached to the surface of the white cured film with actinic radiation to cure the ink other than the white ink.

Abstract: An ink jet recording apparatus contains a conveyer which conveys a recording medium, the conveyer having conveyance members on which the recording medium is mounted; a recorder which jets ink onto the recording medium being conveyed; and a fixer which fixes the ink landed on the recording medium. The ink is curable by a predetermined energy ray. The fixer irradiates the ink on the recording medium with the predetermined energy ray. The conveyer passes the recording medium for conveyance between the conveyance members and moves the recording medium in respective planes by movement of the conveyance members.

Abstract: An image forming method which enables more homogenous image gloss of an image made of gel ink and formed by lump-sum irradiation of active rays. The present invention is an image forming method using a plurality of types of active ray curable ink jet ink having different compositions. The method comprises: a step of gelatinizing each of liquid droplets of the plurality of types of ink jet ink by ejecting the liquid droplets of each ink from a nozzle of an ejection head and causing the same to land onto a surface of a recording medium; and a step of simultaneously irradiating the radiation rays onto the liquid droplets of the plurality of types of ink jet ink that have landed.

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: 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: The present invention relates to an actinic radiation-curable inkjet ink including a photocurable compound, a photopolymerization initiator, and an unsaturated fatty acid ester having no photopolymerizable group. The content of the unsaturated fatty acid ester is 0.3 mass % or more and 4.5 mass % or less based on the total mass of the inkjet ink, and the unsaturated fatty acid ester is a compound having an iodine value of less than 80.

Abstract: Ink sets comprising an ink set A which comprises a yellow ink, a magenta ink, a cyan ink, and a black ink and an ink set B which comprises at least two inks selected from among an orange ink, a green ink, a violet ink, and a blue ink. In the ink set B, the orange ink contains an orange pigment having a cyclic structure and a basic moiety in the cyclic structure, the green ink contains a green pigment having a copper phthalocyanine structure, and the violet ink contains a violet pigment having a dioxazine skeleton. The inks included in the ink set A and ink set B each contain, as a gellant, at last one compound selected from among compounds represented by R1-CO—R2 (general formula (G1)) and compounds represented by R3-COO—R4 (general formula (G2)). In the general formulae (G1) and (G2), R1 to R4 each independently represent a C9-25 chain hydrocarbon group.

Abstract: A method for producing a silica composite particle including a silica particle and at least one compound in which an aluminum atom bonds to an organic group through oxygen. The method includes: (i) providing a silica particle dispersion liquid having a silica particle content of about 20 mass % or more; (ii) mixing and reacting a compound represented by formula (S1) and the silica particle dispersion liquid to obtain a slurry; (iii) providing the at least one compound; and (iv) then mixing and reacting the slurry with the at least one compound to form the silica composite particle.

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: Ink sets comprising an ink set A which comprises a yellow ink, a magenta ink, a cyan ink, and a black ink and an ink set B which comprises at least two inks selected from among an orange ink, a green ink, a violet ink, and a blue ink. In the ink set B, the orange ink contains an orange pigment having a cyclic structure and a basic moiety in the cyclic structure, the green ink contains a green pigment having a copper phthalocyanine structure, and the violet ink contains a violet pigment having a dioxazine skeleton. The inks included in the ink set A and ink set B each contain, as a gellant, at last one compound selected from among compounds represented by R1-CO—R2 (general formula (G1)) and compounds represented by R3-COO—R4 (general formula (G2)). In the general formulae (G1) and (G2), R1 to R4 each independently represent a C9-25 chain hydrocarbon group.

Abstract: An ink jet recording apparatus contains a conveyer which conveys a recording medium, the conveyer having conveyance members on which the recording medium is mounted; a recorder which jets ink onto the recording medium being conveyed; and a fixer which fixes the ink landed on the recording medium. The ink is curable by a predetermined energy ray. The fixer irradiates the ink on the recording medium with the predetermined energy ray. The conveyer passes the recording medium for conveyance between the conveyance members and moves the recording medium in respective planes by movement of the conveyance members.

Abstract: An electromagnetic interference suppressor is disposed so as to be effective for noise in a wide frequency band including a high frequency band. Provided is an electronic device including an electromagnetic interference suppressor; an interfering object configured to generate an electromagnetic wave; an interfered object to be affected by the electromagnetic wave; a substrate configured to mount thereon the interfering object and the interfered object; and the electromagnetic interference suppressor disposed in parallel to the substrate, and is disposed along only one of the interfering object and the interfered object. When an end portion of the interfering object opposed to the interfered object is defined as a first end portion, and an end portion of the interfered object opposed to the interfering object is defined as a second end portion, one end portion of the electromagnetic interference suppressor is disposed between the first end portion and the second end portion.

Abstract: An object of the present invention is to provide a maintenance method of a nozzle surface hardly causing discharge bending even if image formation is performed with a wax-containing ink for a long period of time. The present invention is a maintenance method of a nozzle surface provided with a discharge port of a nozzle of a discharge head capable of discharging an inkjet ink containing a wax which reversibly undergoes a phase transition upon temperature change, a photopolymerizable compound, and a photopolymerization initiator, cured by irradiation with an active ray. This method includes a step of moving an ink absorber at a speed of 10 mm/sec or more and 1000 mm/sec or less while the ink absorber is in contact with a nozzle surface at a contact pressure of 1 mg/mm2 or more and 1000 mg/mm2 or less.