Abstract: A paper sheet seasoning apparatus comprising a mount on which a plurality of sheet-like recording media are loaded and whose central portion is curved in a convex shape when seen in a first direction; a blowing member that blows air in the first direction onto end portions of the recording media loaded on the mount; a pair of side panels that support both end portions in a direction that intersects the first direction of the recording media on the mount; and a top panel disposed in such a way that a gap exists in a vertical direction between the top panel and the uppermost recording medium on the mount, wherein on at least one of the pair of side panels, there is disposed an approaching surface that approaches the opposing side panel as the approaching surface heads upward in the vertical direction.

Abstract: An image formation device includes an inkjet head that ejects ink onto a sheet, IR heaters that dry the ink ejected on the sheet, and warm air heaters between the IR heaters. At the IR heaters, a peak wavelength of infrared rays is set to be less than or equal to 1.2 ?m. By adjusting temperature of the IR heaters and temperature and wind speed of the warm air heaters, during an initial stage of drying in which a moisture content derived from ink at the sheet is greater than or equal to 4.0 g/m2, heating is carried out under a condition that a paper surface temperature of the sheet becomes less than or equal to 100° C., and, after the moisture content derived from ink at the sheet becomes lower than 4.0 g/m2, heating is carried out such that the paper surface temperature of the sheet exceeds 100° C.

Abstract: The image forming method forms an image on a medium by using ink and treatment liquid. The ink contains coloring material and thermoplastic resin particles in a solvent, and the treatment liquid contains a component which aggregates the coloring material. The image forming method includes: a treatment liquid deposition step of depositing the treatment liquid onto the medium to form a treatment liquid film on the medium; an ink droplet deposition step of ejecting and depositing droplets of the ink onto the medium to form an ink film on the medium on which the treatment liquid film has been formed; and an ink film drying step of heating and drying the ink film under conditions where T<MFT+20° C. until ? declines to a state not higher than 2.0 from a state exceeding 2.

Abstract: The inkjet recording method includes: a treatment liquid deposition step of depositing a treatment liquid containing an aggregating agent onto a surface of a coating layer of a coated paper having a base paper layer and the coating layer coating the base paper layer; and an ink deposition step of depositing ink onto the surface of the coating layer on which the treatment liquid has been deposited. In the ink deposition step, the ink is deposited onto the surface of the coating layer in a state where an effective pH of the aggregating agent on the surface of the coating layer is not lower than 1.67 and not higher than 7.0, and an effective pH of the aggregating agent in the coating layer is not lower than 0.1 and not higher than 1.7.

Abstract: An image forming apparatus is provided which can effectively adapt stacked sheets of paper to the surrounding environment. A controller controls a moving member to move a position at which air is blown to an end portion of a sheet bundle in up and down direction of sheets of paper being stacked. The driving of an air blower is controlled so that the air volume when air is blown toward the lower-side end portion of the sheet bundle by the air blower is larger than the air volume when air is blown toward the upper-side end portion of the sheet bundle. By moving the position at which air is blown by the air blower in the up and down direction, it is possible to effectively adapt the stacked sheet bundle to the surrounding environment, compared with a case where air is simultaneously blown to the entire sheet bundle.

Abstract: The present invention provides a paper seasoning apparatus and an inkjet recording apparatus including a paper seasoning apparatus, capable of seasoning paper configured in a paper stack, and separating the paper stacks by introducing separation plates between sheets of the paper. Namely, separation plates for separating paper into specific numbers of sheets are introduced from a plate feeding apparatus into a housing of a paper seasoning apparatus. A separation plate lowering device lowers the separation plate that is supporting a paper stack. Seasoning is performed by blowing air from an air blowing device against the paper stack.

Abstract: The present invention provides a paper seasoning apparatus, a paper seasoning method, and an inkjet recording apparatus, that may improve seasoning achieved by blowing air against a paper stack. A paper seasoning apparatus includes, an upwards protruding shaped mounting surface on which a paper stack is mounted, and first air blowing devices and second air blowing devices that blow air against a side face of the paper stack mounted on the mounting surface. The second air blowing devices are disposed in the vicinity of a maximum height position and at a height of a position where air outlets of the second air blowing devices include the mounting surface.

Abstract: The image forming method is for forming an image on an image formation body by using an ink liquid including a coloring material and an aggregation treatment agent including a component that causes the coloring material to aggregate. The image forming method includes: an aggregation treatment layer formation step of forming, on the image formation body, a semisolid aggregation treatment layer that includes the aggregation treatment agent and has a moisture content ratio not more than 56%; an ink droplet deposition step of ejecting droplets of the ink liquid and depositing the droplets of the ink liquid onto the image formation body where the aggregation treatment layer has been formed; and a solvent removal step of removing a liquid solvent present on the image formation body after the ink droplet deposition step.

Abstract: An image forming apparatus which forms a primary image on an intermediate transfer body and then transfers the primary image onto a recording medium, has: a movement device which moves the intermediate transfer body in a movement direction; a recess-projection forming device which forms a recess-projection shape in an image forming surface of the intermediate transfer body; a droplet ejection device which is provided on a downstream side of the recess-projection forming device in terms of the movement direction and ejects droplets of ink onto the image forming surface of the intermediate transfer body in which the recess-projection shape has been formed, to form the primary image; and a transfer recording device which is provided on a downstream side of the droplet ejection device in terms of the movement direction and applies pressure to at least one of the intermediate transfer body and the recording medium in a state where the recording medium makes contact with the primary image formed on the image formin

Abstract: A seasoning apparatus includes: a table on which a stack of paper sheets is loaded; a ceiling plate which is arranged above the table to cover an upper side of the paper stack on the table; a front side plate and a rear side plate which are arranged to oppose to each other at front and rear sides of the paper stack on the table, at least one of the front and rear side plates being advanceable and retractable relatively to each other; a right-hand side plate and a left-hand side plate which are arranged to oppose to each other at a right-hand side and a left-hand side of the paper stack on the table, at least one of the right-hand and left-hand side plates being advanceable and retractable relatively to each other; and an air blowing device which blows air horizontally toward the paper stack on the table.

Abstract: A printing paper seasoning apparatus includes: a loading table on which a plurality of sheets of printing paper are stacked and loaded; a ceiling plate which is disposed above the loading table so as to oppose the loading table for covering over an upper side of a stack of the printing paper loaded on the loading table; an air blowing device which blows air from a side face side into a paper accommodating region formed between the loading table and the ceiling plate which are arranged so as to oppose each other; a side plate arranged in a side face portion of the paper accommodating region; and an exhaust section including openings formed in the side plate, wherein an opening ratio of the exhaust section varies in a vertical direction of the paper accommodating region in such a manner that the opening ratio on a lower side of the exhaust section is smaller than the opening ratio on an upper side of the exhaust section.

Abstract: An air blowing apparatus includes: a paper stack accommodating section which forms a paper stack accommodating space for accommodating a stack of paper; and an air blowing device which blows air toward an edge of each sheet of paper of the stack of paper accommodated in the paper stack accommodating space, wherein the paper stack accommodating section includes a curved surface which faces a paper surface of the stack of paper, and the curved surface extends in an air blowing direction of the air blowing device and has a curvature in a direction perpendicular to the air blowing direction of the air blowing device.

Abstract: The printing apparatus includes: an image formation device which performs front-side printing to form a front-side image on a front side of paper according to front-side image data, and then performs rear-side printing to form a rear-side image on a rear side of the paper according to rear-side image data; a device which predicts an amount of size variation occurring in the paper during a period from a time of depositing ink in the front-side printing to a time of starting the rear-side printing; a device which calculates a correction amount for correcting a difference between actual sizes of the front-side and rear-side images at a time of depositing ink in the rear-side printing, according to the predicted amount of size variation; and a device which corrects the front-side image data and/or the rear-side image data to be supplied to the image formation device, according to the calculated correction amount.

Abstract: An image forming method is disclosed, which includes applying a treatment liquid onto a recording medium that has a coated layer and has an area of 1,250 cm2 or more, applying an ink composition including a pigment and resin particles having a glass transition temperature (Tg) of 100° C. or higher onto the recording medium onto which the treatment liquid has been applied and which is conveyed at a conveyance speed of 200 mm/s or higher, heating and drying the applied treatment liquid and ink composition, cooling the recording medium that has been subjected to the heating and drying, to a temperature of 35° C. or lower, and accumulating the recording medium that has been subjected to the cooling, into an accumulation unit.

Abstract: In a printing paper seasoning apparatus, sheets of paper are placed in a stack in a paper accommodating section. A direction to which convex sides of curled sheets face is taken as a curl direction. An air flow is controlled in such a manner that during an initial period of an air blowing, the air flow supplied to one of the upper and lower portions of the paper accommodating section on a side opposite from the curl direction is greater than the air flow supplied to the other of the upper and lower portions on a side of the curl direction, and during a latter period of the air blowing, the air flow supplied to the one of the upper and lower portions on the side opposite from the curl direction is reduced and the air flow supplied to the other on the side of the curl direction is increased.

Abstract: The printed matter seasoning apparatus includes: a table on which a plurality of sheets of printed paper are placed in a stack, ink having been deposited on at least one surface of each sheet of the printed paper; and an air blowing device which blows air toward at least one of end sides of the stack on the table to supply the air simultaneously between the respective sheets in the stack. The air blowing device blows the air at an air flow volume of at least 0.02 m3/(min·m) per sheet of the printed paper and per unit length of the printed paper in a width direction thereof perpendicular to a direction from the air blowing device to the stack on the table.

Abstract: The image processing method converts an input image having multiple tones into an image having fewer tones than the input image, for image recording by a recording head including a plurality of recording elements arranged in a prescribed direction. The pixel values of pixels of the input image are quantized in a processing direction which is set to a direction substantially parallel to a relative conveyance direction of a recording medium with respect to the recording elements when recording onto the recording medium is performed by means of the recording elements. The pixel value for a pixel under processing is quantized according to the result of a comparison between the pixel value for the pixel under processing and a threshold value for the pixel under processing. An error with respect to the pixel under processing caused by quantizing the pixel value for the pixel under processing is diffused into an unprocessed pixel in a periphery of the pixel under processing.

Abstract: The image forming method includes: an image forming step of forming an image on a recording medium by using aqueous ink, the recording medium showing dimensional change of not more than 0.1% with respect to water content of 1 g/m2; a drying step of drying the ink on the recording medium after the image forming step; and a recording medium discharge step of discharging the recording medium after the drying step, wherein the drying is carried out in the drying step so that a difference in water content between an image portion and a non-image portion of the recording medium immediately before the recording medium discharge step is not more than 3.0 g/m2.

Abstract: The inkjet recording method includes: a treatment liquid deposition step of depositing a treatment liquid containing an aggregating agent onto a surface of a coating layer of a coated paper having a base paper layer and the coating layer coating the base paper layer; and an ink deposition step of depositing ink onto the surface of the coating layer on which the treatment liquid has been deposited. In the ink deposition step, the ink is deposited onto the surface of the coating layer in a state where an effective pH of the aggregating agent on the surface of the coating layer is not lower than 1.67 and not higher than 7.0, and an effective pH of the aggregating agent in the coating layer is not lower than 0.1 and not higher than 1.7.

Abstract: The image forming method forms an image on a medium by using ink and treatment liquid. The ink contains coloring material and thermoplastic resin particles in a solvent, and the treatment liquid contains a component which aggregates the coloring material. The image forming method includes: a treatment liquid deposition step of depositing the treatment liquid onto the medium to form a treatment liquid film on the medium; an ink droplet deposition step of ejecting and depositing droplets of the ink onto the medium to form an ink film on the medium on which the treatment liquid film has been formed; and an ink film drying step of heating and drying the ink film under conditions where T<MFT+20° C. until ? declines to a state not higher than 2.0 from a state exceeding 2.