Abstract: Wet wiping processing is performed on an ink ejection opening forming surface of a print head by use of a wiper. Then, as bubble removal processing, the print head is heated by use of either an electrothermal conversion element or a heat generating element located inside the print head, and then a control unit causes the print head to perform preliminary ejection K1 and preliminary ejection K2.

Abstract: An apparatus includes a recording head arranged so as to oppose a sheet moving in a first direction, in which a plurality of first nozzle chips and a plurality of second nozzle chips each having a nozzle array are arranged as different arrays in a second direction crossing the first direction, and in which the first nozzle chips and the second nozzle chips adjacent to each other are shifted from each other in the second direction, a first suction unit opposed to the first nozzle chips and configured to suction ink from a part of the nozzle arrays included in the first nozzle chips, a second suction unit opposed to the second nozzle chips and configured to suction ink from a part of the nozzle arrays included in the second nozzle chips, a suction holder configured to retain the first suction unit and the second suction unit, and a movement mechanism configured to cause relative movement between the recording head and the suction holder in the second direction, wherein the first suction unit and the second suct

Abstract: An apparatus includes a humidifying unit that generates humidified gas, a drying unit that dries ink applied to a sheet by a recording unit, a first duct that supplies gas discharged from the drying unit to at least one of the humidifying unit and the recording unit, and a second duct that supplies the humidified gas generated by the humidifying unit to the recording unit.

Abstract: An apparatus includes a recording head having a sealing portion arranged in proximity to nozzle arrays and protruding beyond a nozzle surface. A wiper unit configured to wipe the nozzle surface of the recording head has a first wiper blade and a second wiper blade, and the first wiper blade is arranged to be inclined by an angle ?1 (?1>0) with respect to a direction orthogonal to the wiping direction within a plane parallel to the nozzle surface, while the second wiper blade is arranged to be inclined by an angle ?2 (?2<0) with respect to the direction orthogonal to the wiping direction within the plane.

Abstract: A supply unit is provided to supply humidified gas near a nozzle array of a line-type recording head. The flow-rate distribution of the supplied humidified gas in a direction of the nozzle array is changeable in accordance with a conveying region where a sheet is conveyed while opposing the nozzle array.

Abstract: First humidified gas is supplied from a first supply port to a sheet to be conveyed, thereby increasing the moisture content of the sheet. Simultaneously, second humidified gas is supplied to a space where nozzles of the inkjet recording head are exposed, from a second supply port provided at a position closer to the inkjet recording head than the first supply port, thereby increasing the atmosphere humidity of the space. The part of the sheet of which the moisture content has been increased is made to enter the space where the atmosphere humidity has been increased, and recording is performed by the inkjet recording head.

Abstract: An apparatus includes a supply unit having a humidifying portion that supplies humidified gas near a nozzle array of a line-type recording head. In correspondence to displacement of the recording head in a direction of the nozzle array, at least one of an introducing direction and an introducing position of the supplied humidified gas can be changed.

Abstract: The present invention uses a temperature sensor to sense the temperature of a print head configured to eject ink, and senses the environmental temperature of a printing apparatus. The temperature of the print head is corrected based on the environmental temperature only if information from the temperature sensor is different from the last information acquired.

Abstract: An ink jet printing apparatus and an ink jet printing method are provided in which information about an ink amount ejected on each of unit areas into which a preceding print medium is divided and information about a size of a following print medium are acquired. A delay time for delaying a printing operation for the following print medium is set based on the information about the ink amount ejected on unit areas which are decided among the divided unit areas according to the information about the size of the following print medium.

Abstract: A recording apparatus, performing recording by time-division driving of multiple recording elements on a recording head in increments of blocks, includes: a storing unit storing recording data; an obtaining unit obtaining information relating to inclination of the recording elements in the main scanning direction; a changing unit changing, in increments of recording elements, the main scanning direction storage position of recording data stored in the storing unit to be provided to recording elements of a group, configured of consecutive recording elements in each block of the recording elements, based on the obtained information; and a determining unit determining the driving order of the recording elements subjected to time-division driving in increments of the blocks, for each of the scans; wherein recording is performed based on recording data with the main scanning direction storage position having been changed by the changing unit, and the driving order determined by the determining unit.

Abstract: An ink jet printing apparatus including a suction recovery function performs suction recovery that that recovers the reliability of a print head while reducing the amount of ink sucked from the print head. An ink jet printing apparatus includes a print head having an ejection port surface with ejection ports formed therein from which ink is ejected, a cap covering the ejection port surface of the print head, and suction unit for allowing a pump to generate negative pressure in the cap to suck ink from the print head. The suction unit has a valve provided in a communication tube joining the pump and the cap together. The suction unit sucks ink under a relatively low negative pressure and then switches the valve to suck the ink under a relatively high negative pressure.