Abstract: According to one embodiment, an image forming apparatus includes a support table, a printing head, and a cleaner. The support table rotates around an axis. The printing head faces the support table. The cleaner includes a web coming into contact with the support table.

Abstract: According to one embodiment, a maintenance unit includes an inkjet head and a cap. The inkjet head includes plural nozzle arrays and discharges a different color of ink from each of the plural nozzle arrays. The cap includes plural protrusions at positions facing the plural nozzle arrays, includes a groove between the plural protrusions, and tightly closes the plural nozzle arrays with the plural protrusions.

Abstract: According to one embodiment, an inkjet image forming apparatus includes a transport section configured to adsorb a recording medium by suction to transport the recording medium under inkjet heads, and a controller configured to perform control in a manner that an adsorption force to the recording medium if the image is formed on a second surface of the recording medium is larger than an adsorption force to the recording medium if the image is formed on a first surface of the recording medium.

Abstract: According to one embodiment, an image recording apparatus includes a printing unit and an entry angle changing mechanism. The entry angle changing mechanism is disposed further along the upstream than the printing unit in a conveying direction and changes the entry angle of the paper with an upper surface not printed and a lower surface printed, after printing on the first surface if printing on both sides is performed by the printing unit.

Abstract: The inkjet recording device has the feed mechanism for feeding the paper sheet in the feed direction, the inkjet head for ejecting the droplets towards the paper sheet conveyed by the feed mechanism, the dry section for drying the droplets attached on the paper sheet by landing, and the control mechanism for predicting the amount of heat necessary for drying the droplets based on either one of the paper sheet information of the paper sheet and the recording information to be recorded on the paper sheet to control the temperature of the dry section.

Abstract: According to one embodiment, an ink jet recording apparatus includes an ink jet head, a first tank arranged above the ink jet head and configured to store ink to be supplied to the ink jet head, a first tank valve that opens and closes in order to switch the inside of the first tank to be opened to or shut off from the atmosphere, a second tank arranged below the ink jet head and configured to store the ink collected from the ink jet head, a second tank valve that opens and closes in order to switch the inside of the second tank to be opened to or shut off from the atmosphere, a pipe configured to connect the ink jet head, the first tank, and the second tank and form a part of a circulation shape, a pump provided in the pipe between the first tank and the second tank, a passive pressure adjusting device connected to the second tank, arranged below the first tank, and configured to generate negative pressure using the gravity, and a third tank valve provided between the second tank and the passive pressure adj

Abstract: An image forming apparatus includes a carriage on which a recording head is mounted, a carriage drive mechanism including a motor to reciprocate the carriage, a sheet transport mechanism to transport the sheet in a direction orthogonal to a movement direction of the carriage, a sheet guide member arranged below the recording head and having a guide unit which is opposite to the recording head and on which the sheet passes, a paper loading unit arranged below the recording head and containing the stacked sheet before printing, a first transport path to transport the sheet from the paper loading unit to between the recording head and the sheet guide member while inverting the sheet, a second transport path to transport the sheet from the paper loading unit to a temporal containing unit in a state where a front-back direction of the sheet is kept, and a third transport path to transport the sheet from the temporal containing unit to between the recording head and the sheet guide member in a state where the front

Abstract: An image forming apparatus includes a sheet stacking unit that stacks and stores the sheet before printing, a first conveying path that conveys the sheet from this sheet stacking unit, a second conveying path that conveys the sheet from this first conveying path to a space between the recording head and a sheet guide member while reversing the sheet, a third conveying path that conveys the sheet from the first conveying path to a temporary storing unit in a state in which a front-to-rear direction of the sheet is maintained, a fourth conveying path that conveys the sheet from the temporary storing unit to the space in a state in which the front-to-rear direction of the sheet is maintained, a first switching mechanism that switches a conveying direction of the sheet, and a second switching mechanism that guides the sheet.

Abstract: A toner cartridge includes a toner container which contains toner, the toner container having at one end portion thereof a discharge port which discharges the toner, and a member which is attached to an outer peripheral surface of the one end portion. The member has a first part which is disposed at the one end portion and has a shape corresponding to the toner cartridge, and a second part which has, at a position corresponding to the discharge port, a passage hole through which the toner discharged from the discharge port passes.

Abstract: According to one embodiment, an image forming apparatus has an image forming unit, a heat pump, and a blow-out port. The image forming unit forms an image on a medium. The heat pump generates air of a decreased low humidity. The low-humidity air generated by the heat pump is blown from the blow-out port to the medium on which the image is formed by the image forming unit.

Abstract: According to one embodiment, an image forming apparatus includes an image forming unit, a tray, a heating mechanism, a blower, and a body casing. The image forming unit forms an image on an image forming medium. The tray stacks the image forming medium, having an image formed thereon by the image forming unit, on the tray. The heating mechanism warms air. The blower sends out the air warmed by the heating mechanism. The body casing has a discharge opening. The discharge opening is used to discharge the air sent from the blower to the image forming medium stacked on the tray.

Abstract: The image forming apparatus includes: plural heads arrayed in a direction orthogonal to a conveying direction of a recording medium and configured to eject ejection liquids onto the conveyed recording medium from plural nozzle holes formed on nozzle surfaces; a cap unit configured to simultaneously cap the nozzle surfaces of all the plural heads; a suction unit configured to simultaneously suck all the nozzle holes on the nozzle surfaces of one head among the plural heads; and a contact and separation mechanism configured to relatively move the cap unit and suction unit and the nozzle surfaces of the heads to be capable of coming into contact with and separating from each other.

Abstract: The present invention provides, in an image forming apparatus configured to form an image on a recording medium with ejection liquids ejected from plural heads, a technique for enabling easy positioning of the respective plural heads. The image forming apparatus includes: plural heads including a reference head having a positioned section and configured to respectively eject ejection liquids onto a recording medium; a head base having plural head positioning sections on which the plural heads are respectively mounted to be positioned, whereon a reference-head positioning section on which the reference head should be mounted in cooperation with the positioned section of the reference head performs positioning at a degree of freedom of position adjustment lower than that of the other head positioning sections; and a conveying unit configured to convey the recording medium to a position opposed to the head base.

Abstract: The image forming apparatus includes an upstream side chamber arranged further on an upstream side with respect to an ink flowing direction than a head in a circulating path and configured to temporarily store the ejection liquid that should be supplied to the head through the circulating path, a downstream side chamber arranged further on a downstream side than the head and further on the upstream side than the upstream side chamber in the circulating path and configured to temporarily store the ejection liquid collected from the head, and a pressure-difference adjusting mechanism configured to form a first pressure state in which the pressure in the downstream side chamber is lower than the pressure in the upstream side chamber and the head and a second pressure state in which the pressure in the upstream side chamber is lower than the pressure in the downstream side chamber.

Abstract: An image forming apparatus for printing on a sheet by a recording head, includes a sheet transport mechanism to transport the sheet in a specified direction; a paper loading unit to contain the stacked sheet before printing; a second transport mechanism to transport the sheet through a second transport path from the paper loading unit to a temporal containing unit a state where a front-back direction of the sheet is kept; and a third transport mechanism to transport the sheet through a third transport path from the temporal containing unit between the recording head and the sheet guide member in a state where the front-back direction of the sheet is kept.

Abstract: An image forming apparatus includes an image forming unit and a supporting mechanism that supports this image forming unit. A feed tray for placing sheets thereon is provided in a rear part of the image forming unit. The supporting mechanism includes a base member and a turntable. The turntable can move along a guide section to a first position on a rear side and a second position on a front side with respect to the base member. The supporting mechanism includes a rotation stopping mechanism that prevents the turntable from rotating when the turntable is in the first position and a rotating mechanism that rotates the turntable in a horizontal plane in a state in which the turntable has moved to the second position.

Abstract: An image forming apparatus includes an apparatus body, a conveying mechanism that is provided in this apparatus body and conveys a sheet, a recording head that moves along a moving path orthogonal to a conveying direction of the sheet, ejects an ink to the sheet to print an image on the sheet, and, after the printing is finished, stands by in a first standby position on one end side of the moving path, and a CPU that moves the recording head that is on standby in the first standby position to an arbitrary position of the moving path.

Abstract: According to one embodiment, an inkjet recording apparatus includes a plurality of inkjet heads, a common supply pipe, a common collection pipe and an ink tank device. The common supply pipe includes an upper inner wall from one end side in a longitudinal direction to the other end side, which is inclined with respect to a horizontal direction from the one end side to the other end side if an ink flow direction and opposite direction of a gravitational force are defines as positive axes. The common collection pipe is supplied with the ink from the common supply pipe at one end side in the longitudinal direction. The ink tank device supplies the ink to the one end side of the common supply pipe, and collects the ink from the common collection pipe.

Abstract: According to one embodiment, an ink-jet image forming apparatus includes an ink-jet head ejecting an aqueous ink to form an image on a surface of a recording medium, a carrying belt carrying the recording medium and at least a part of which is situated upstream from the ink-jet head in a direction of carrying the recording medium, and a solution adhering unit adhering a solution to a water-retentive surface of the carrying belt.

Abstract: The image forming apparatus has: a unit including a transfer medium that circularly moves; an image forming section provided along a circulation direction of the transfer medium; a movement mechanism that moves the unit in a direction substantially perpendicular to a moving direction of the transfer medium, and enables the unit to move in a first direction so as to bring the unit into contact with the image forming apparatus and in a second direction so as to move the unit apart from the image forming apparatus; and a cushioning component for applying a load in directions opposite to moving directions of the unit when the unit is moved in the first and second directions, respectively, thereby to relax impact caused by motion of the unit.