Abstract: A printing apparatus comprises: a control unit that controls to apply a voltage from a power supply unit to printing elements for respective groups each including a plurality of printing elements; a memory that stores, for the respective groups, accumulated times during which the voltage is applied; a obtaining unit that obtains the accumulated times for the respective groups; a measurement unit that measures, for the respective groups, voltage application times during which the voltage is applied for a predetermined time; a calculation unit that adds the voltage application times to the accumulated times; an updating processing unit that writes, in the memory, the accumulated times obtained for the respective groups by the addition; and an inhibition processing unit that performs processing for inhibiting use of a printhead when one of the accumulated times obtained for the respective groups by the addition has exceeded a predetermined time.

Abstract: To provide an inkjet printing apparatus that suppresses occurrence of image deterioration, such as a texture, a moire, and a streak in a printing result. In order for this to be achieved, a level is set up to a overlapping portion of a chip of a print head depending on dot impact accuracy, and a print data distribution rate of each chip in the overlapping portion is determined according to the level.

Abstract: When an image is recorded using a multichip recording head including a plurality of chips each having a plurality of nozzle arrays, a change in image density can occur due to a registration error between chips in an overlapping part where two chips are connected. To suppress the change in image density, input image data is distributed to two chips such that there are dots overlapping each other between the two chips in the overlapping part.

Abstract: The present invention provides a recording apparatus including recording heads each including a plurality of nozzle arrays that are arranged so as to overlap, wherein the width with which the overlapping portions of the recording heads for colors that are simultaneously used with a relatively high frequency overlap in an intersecting direction that intersects an array direction of nozzles is smaller than the width with which the overlapping portions of the recording heads for colors that are simultaneously used with a relatively low frequency overlap in the intersecting direction.

Abstract: The present invention provides a recording apparatus including recording heads each including a plurality of nozzle arrays that are arranged so as to overlap, wherein overlapping portions of the recording heads for two different colors are separated from each other with a distance therebetween in an array direction of nozzles.

Abstract: A first humidified gas is supplied through a first supply port to a sheet. A second humidified gas is supplied to a space where nozzles of an inkjet recording head are exposed through a second supply port located at a position closer to the recording heads than the first supply port, to increase atmosphere humidity in the space. The sheet portion having a moisture content increased by the humidification in advance is advanced into the space having the increased atmosphere humidity, to record on the sheet using the inkjet recording head. An amount of humidification with the first humidified gas is set according to at least one recording condition.

Abstract: In a line-head type inkjet printing apparatus that ejects a plurality of types of inks, an inkjet printing apparatus is provided in which the change of its ejection properties different depending on the type of ink is prevented from occurring. The line-head type printing apparatus includes an acquisition unit that counts the ejection number of liquid from each of print heads in each of a plurality of print heads. Furthermore, the printing apparatus compares the ejection number of liquid from each of the print heads counted by the acquisition unit with a threshold value set for each of the print heads. The printing apparatus includes a change unit that can move a holder in the main scanning direction when the counted ejection number of liquid exceeds the threshold value set for the print head.

Abstract: A waiting time Ts is decided on the basis of ink type information and ink feed amount information, referring to waiting time table A (Step 6). Along with this, a dried printing paper is carried to and stopped in a waiting area 9 (Step 7), a time period T is measured after stopping, and measurement processing in the next step is delayed until the time period T reaches the waiting time Ts. Then, when the time period T reaches the waiting time Ts, a measuring instrument 10 is used to measure a density of a patch printed on the printing paper (Steps 8 and 9).

Abstract: An apparatus includes: a drying unit to dry a printing medium on which an image was printed using an inkjet head; a humidification unit to humidify the printing medium that was dried by the drying unit so that the moisture content of the printing medium becomes the equilibrium state in the ambient environment; a colorimetric unit to perform colorimetry on the printing medium that was humidified by the humidification unit; and a calibration unit to calibrate printing properties on the basis of the result of colorimetry by the colorimetric unit.

Abstract: A printing apparatus includes a plurality of inkjet print heads to which humidified air is supplied to retain the humidity in the print heads. Ink colors for the plurality of heads are arranged in a sequence corresponding to ink characteristics. The plurality of print heads are arranged in a sequence such that a print head configured to eject ink characterized by having a larger amount of volatile components evaporated within a predetermined time is located in a more upstream area.

Abstract: A cut mark is recorded in an area between one image and the next image to be printed, and the recorded cut mark is to be detected. When the cut mark cannot be detected, a position of the cut mark is estimated based on information on an already detected cut mark and information on a length of the image printed after said already detected cut mark. A first cut position and a second cut position for cutting off the area are set based on the estimation.

Abstract: A first reading unit that reads a pattern or an image formed on a sheet by a print unit for recognizing a print unit state, a second reading unit that reads a cut mark formed on the sheet on a downstream thereof, a cutter that cuts the sheet on a downstream thereof, and a reverse unit that reverses the sheet fed to the print unit again are provided. In duplex printing, the sheet where images are sequentially printed on a first surface is led to the reverse unit, the front and rear faces are reversed, and the sheet is fed to the print unit again. The sheet where images and cut marks are sequentially printed on a second surface is cut by the cutter for each piece and discharged. The sheet is cut on the basis of a reading of the cut mark by the second reading unit.

Abstract: A patch is printed on a printing medium, and ink discharge amount information is acquired from a colorimetric value that is acquired by measuring a printed patch. According to the information, color correction is performed on image data to be processed for printing, using a correction table that corresponds to a designated type of printing media.

Abstract: The present invention provides an image processing apparatus including a unit that obtains a plurality of image data, a unit that designates an image group as an editing target in the plurality of image data, a unit that determines a main object in each image data of the image group, a unit that obtains, from the image data, information to determine a depth-direction relative positional relationship between the main object and an image capturing apparatus, the information containing information of the main object, a unit that determines, based on the information, the depth-direction relative positional relationship between the image capturing apparatus and the main object in each image data of the image group, and a unit that determines, based on the positional relationship, a layout order and image sizes or an image overlay order of the image data of the image group on a layout plane.

Abstract: An image processing method and an image processing apparatus capable of correcting with high efficiency a specific part are provided. According to one embodiment of the present invention, an original photographed image file is acquired. If face region information is added to the original photographed image file, this face region information is acquired. Subsequently, a first decoding region is determined based on the acquired face region information, and the first decoding region is decoded to the original photographed image file to generate first decoded image data. Subsequently, a red-eye region is detected from the generated first decoded image data, and specific part position information about a position of this red-eye region is acquired. Subsequently, the original photographed image file is decoded to generate second decoded image data, and a red-eye is corrected for the second decoded image data, based on the acquired specific part position information.