Abstract: An inkjet recording apparatus includes: (a) a first medium accommodator configured to accommodate a recording medium; (b) a medium supporter having a flat horizontal surface on which the recording medium is to be supported; (c) an inkjet head having a nozzle opening surface that is opposed to the flat horizontal surface of the medium supporter; (d) a first medium feeder configured to horizontally feed the recording medium accommodated in the first medium accommodator, in a medium loading direction, such that the recording medium is fed onto the flat horizontal surface of the medium supporter; (e) a second medium feeder configured to horizontally feed the recording medium supported on the flat horizontal surface of the medium supporter, in a medium unloading direction that intersects the medium loading direction in a plan view as seen in a direction perpendicular to the flat horizontal surface of the medium supporter; and (f) a second medium accommodator configured to accommodate the recording medium that is f

Abstract: An inkjet recording apparatus includes a holding face, an inkjet head including plural nozzles arranged along a predetermined direction correspondingly with a predetermined resolution, a first moving mechanism which performs a first movement of moving at least one of the inkjet head and the holding member in a direction perpendicular to the predetermined direction, a second moving mechanism which performs a second movement of moving the holding member in the predetermined direction, and a first movement controlling unit which controls the first moving mechanism to perform the first movement first and second times. In the second time, the inkjet head and the holding member are moved in directions that are opposite to directions in the first time. A second movement controlling unit controls the second moving mechanism to, after the first movement for the first time, perform the second movement by one half of a distance corresponding to the predetermined resolution.

Abstract: A pump includes a case, a rotor, and a partition member. The case has a hollow inside defined by an inner wall surface thereof and includes a suction inlet through which fluid is sucked in the hollow and an exhaust outlet through which the fluid is ejected from the hollow. The rotor is rotatable in the hollow. The partition member is supported with respect to the rotor in the direction across the rotor such that two ends make constant contact with the inner wall surface defining the hollow, and is rotatable with the rotor. When the rotor is rotated, the partition member slides in the direction across the rotor and expands and shrinks in the same direction, thereby the two ends of the partition member make constant contact with the inner wall surface of the case. Accordingly, the fluid is sucked through the suction inlet in the hollow and the sucked fluid is ejected through the exhaust outlet from the hollow.

Abstract: In order to make maintenance of an ink jet printer less time-consuming, when ink is to be purged from ink jet heads 1, a unit conveying mechanism 30 moves a feeding plane 11a of a feeding sheet 11 to a retreated position that is inclined with respect to ink jet faces 4a of the ink jet heads 1. An ink receiving sheet 21 is then moved to an ink receiving position that is between the ink jet faces 4a and the feeding plane 11a and that extends along this feeding plane 11a. Ink that is jetted onto the ink receiving sheet 21 from the ink jet faces 4a of the ink jet heads 1 runs down the ink receiving sheet 21, and is collected in an ink tank 72.

Abstract: An ink jet printer is provided, which intermittently dispenses cleaning liquid onto ink that is adhered to an endless belt that carries printing sheets. A cleaning liquid dispenser is driven by a rotator that rotates in association with the rotation of the endless belt. The rotation position of the rotator is set as a reference, in order to control the feed timing. In this way, a gap can be maintained between two printing sheets that are carried by the endless belt, ink can be jetted toward the gap, and cleaning liquid can be dispensed on the gap. A print process and a flushing process can be sequentially repeated.

Abstract: During a restoring operation, a transport belt is bent by moving at least one of rollers around which the transport belt is looped, thereby forming a space which enables a maintenance unit to be inserted to an ink ejection surface of an inkjet head.

Abstract: An ink-jet recording apparatus comprises a first roller, a second roller, a looped conveyor belt, a conveyance face formed on the conveyor belt to convey a record medium, an ink-jet head, and a roller supporter. The conveyor belt is wrapped around the first and second rollers to be stretched between the first and second rollers. The ink-jet head has an ink ejection face on which nozzles each of which ejects ink are formed.

Abstract: An inkjet recording apparatus includes: (a) a first medium accommodator configured to accommodate a recording medium; (b) a medium supporter having a flat horizontal surface on which the recording medium is to be supported; (c) an inkjet head having a nozzle opening surface that is opposed to the flat horizontal surface of the medium supporter; (d) a first medium feeder configured to horizontally feed the recording medium accommodated in the first medium accommodator, in a medium loading direction, such that the recording medium is fed onto the flat horizontal surface of the medium supporter; (e) a second medium feeder configured to horizontally feed the recording medium supported on the flat horizontal surface of the medium supporter, in a medium unloading direction that intersects the medium loading direction in a plan view as seen in a direction perpendicular to the flat horizontal surface of the medium supporter; and (f) a second medium accommodator configured to accommodate the recording medium that is f

Abstract: An inkjet recording apparatus includes a holding face, an inkjet head including plural nozzles arranged along a predetermined direction correspondingly with a predetermined resolution, a first moving mechanism which performs a first movement of moving at least one of the inkjet head and the holding member in a direction perpendicular to the predetermined direction, a second moving mechanism which performs a second movement of moving the holding member in the predetermined direction, and a first movement controlling unit which controls the first moving mechanism to perform the first movement first and second times. In the second time, the inkjet head and the holding member are moved in directions that are opposite to directions in the first time. A second movement controlling unit controls the second moving mechanism to, after the first movement for the first time, perform the second movement by one half of a distance corresponding to the predetermined resolution.

Abstract: An ink-jet head comprises a conveyance unit that forms a conveyance face on which a recording medium is conveyed, and a first moving mechanism that moves the conveyance unit. By means of the first moving mechanism, the conveyance unit selectively takes a conveyance position where the conveyance face is adjacent to an ink ejection surface, and a withdrawal position that is other than a position vertically below a maintenance unit. When the maintenance unit performs maintenance on the head, the conveyance unit is disposed in the withdrawal position.

Abstract: When a sheet cassette having a roll of paper is attached to a body of a printer, a leading edge of a sheet is always brought to position at a certain position. When the sheet cassette is not attached to the printer body, a stopper, provided near an end of a lever, protrudes to the outside from an opening, so that the leading edge of the sheet, which has passed between a pair of correcting rollers, abuts against the stopper. When the sheet cassette is attached to the printer body, the lever rotates in a clockwise direction, so that the stopper retracts in the opening.

Abstract: An ink-jet recording apparatus comprises a first roller, a second roller, a looped conveyor belt, a conveyance face formed on the conveyor belt to convey a record medium, an ink-jet head, and a roller supporter. The conveyor belt is wrapped around the first and second rollers to be stretched between the first and second rollers. The ink-jet head has an ink ejection face on which nozzles each of which ejects ink are formed.

Abstract: An inkjet printer includes inkjet heads, pumps, a drive source, a derive shaft, power transmission mechanisms, and a selection unit. The pumps supply ink to the inkjet heads to recover an ink ejection condition of the inkjet heads. The drive source rotates the drive shaft forward or backward. The power transmission mechanisms are disposed between the drive shaft and the pumps, respectively, and switch between a state where a forward rotation force of the drive shaft is transmitted to each pump to bring each pump in a operatable condition and a state where the forward rotation force of the drive shaft is not transmitted to each pump. In conjunction with reverse rotation of the drive shaft, the selection unit selects at least one of the power transmission mechanisms to be brought into a state where the selected power transmission mechanism transmits the forward rotation force of the drive shaft.

Abstract: An inkjet printer includes an inkjet head, a sealing member, a conveyance unit, a first moving unit, and a second moving unit. The first moving unit moves the sealing member along an outer circumference of the conveyance belt between a first position and a second position. The first position is located above the conveyance belt and faces the nozzle surface of the inkjet head. The second position is located under the conveyance belt. The second moving unit moves the conveyance belt between a conveyable position and a separate position. When the conveyance belt is located at the conveyable position and the sealing member is located at the first position, the conveyance belt presses the sealing member toward the nozzle surface so that the sealing member covers the nozzle surface.

Abstract: An ink-jet recording apparatus comprises a first roller, a second roller, a looped conveyor belt, a conveyance face formed on the conveyor belt to convey a record medium, an ink-jet head, and a roller supporter. The conveyor belt is wrapped around the first and second rollers to be stretched between the first and second rollers. The ink-jet head has an ink ejection face on which nozzles each of which ejects ink are formed.

Abstract: An ink jet printer is provided, which intermittently dispenses cleaning liquid onto ink that is adhered to an endless belt that carries printing sheets. A cleaning liquid dispenser is driven by a rotator that rotates in association with the rotation of the endless belt. The rotation position of the rotator is set as a reference, in order to control the feed timing. In this way, a gap can be maintained between two printing sheets that are carried by the endless belt, ink can be jetted toward the gap, and cleaning liquid can be dispensed on the gap. A print process and a flushing process can be sequentially repeated.

Abstract: A conveyor unit in an image recording apparatus can convey a record medium, being unwound from a roll, in either of a first direction in which the roll is unwound and a second direction reverse to the first direction. The image recording apparatus includes first and second contact mechanisms capable of bringing the record medium into close contact with a conveyor member at positions distant in the respective first and second directions from an image recording position where an image recording head records an image on the record medium. The first contact mechanism brings the record medium, being conveyed in the first direction, into close contact with the conveyor member.

Abstract: An inkjet printer includes a plurality of rollers, an endless transportation belt, a belt rotating mechanism, a recording unit, a printing medium supply mechanism, and a control unit. The transportation belt is laid on the rollers and defines a first recess portion, which extends in a direction perpendicular to a printing medium transporting direction, in an outer circumferential surface thereof. The belt rotating mechanism applies a rotating force to the transportation belt. The recording unit is disposed to face the transportation belt and forms an image. The printing medium supply mechanism supplies a printing medium onto the transportation belt. The control unit controls at least one of the belt rotating mechanism and the printing medium supply mechanism so that when the printing medium is on the transportation belt, one of front and rear end portions of the printing medium is located in the first recess portion.

Abstract: In order to make maintenance of an ink jet printer less time-consuming, when ink is to be purged from ink jet heads 1, a unit conveying mechanism 30 moves a feeding plane 11a of a feeding sheet 11 to a retreated position that is inclined with respect to ink jet faces 4a of the ink jet heads 1. An ink receiving sheet 21 is then moved to an ink receiving position that is between the ink jet faces 4a and the feeding plane 11a and that extends along this feeding plane 11a. Ink that is jetted onto the ink receiving sheet 21 from the ink jet faces 4a of the ink jet heads 1 runs down the ink receiving sheet 21, and is collected in an ink tank 72.

Abstract: An ink-jet recording apparatus comprises a first roller, a second roller, a looped conveyor belt, a conveyance face formed on the conveyor belt to convey a record medium, an ink-jet head, and a roller supporter. The conveyor belt is wrapped around the first and second rollers to be stretched between the first and second rollers. The ink-jet head has an ink ejection face on which nozzles each of which ejects ink are formed.