Abstract: A printer is provided which sprays ink from nozzles to print recording paper P.

Abstract: When data such as a mail is received, a key input state such as a key operation frequency with respect to an active application is detected, and whether display of an application screen is to be prioritized or display of a receipt notification is to be prioritized is determined according to the time interval of key inputs. When prioritized display of the application screen is determined, the receipt notification is displayed so that it does not affect the application screen. Meanwhile, if prioritized display of the receipt notification is determined, the receipt notification is displayed and controlled so that it is on the front of the application screen.

Abstract: A liquid discharge apparatus that is capable of setting a proper deflection amount for deflecting an ink discharge direction even when the distance between the ink discharge surface and the ink landing surface of print paper varies and method of using same. The liquid discharge apparatus includes a head in which a plurality of nozzle-incorporated ink discharge sections are arrayed, discharge direction deflection means for deflecting the discharge direction of an ink discharged from a nozzle of each ink discharge section in the direction of ink discharge section arrangement, distance detection means for detecting the distance between the ink discharge surface of the head and the ink landing surface of print paper, and discharge deflection amount determination means for determining the ink discharge deflection amount (discharge angle) to be provided by the discharge direction deflection means in accordance with the results of detection by the distance detection means.

Abstract: A liquid discharge apparatus that is capable of setting a proper deflection amount for deflecting an ink discharge direction even when the distance between the ink discharge surface and the ink landing surface of print paper varies and method of using same. The liquid discharge apparatus includes a head in which a plurality of nozzle-incorporated ink discharge sections are arrayed, discharge direction deflection means for deflecting the discharge direction of an ink discharged from a nozzle of each ink discharge section in the direction of ink discharge section arrangement, distance detection means for detecting the distance between the ink discharge surface of the head and the ink landing surface of print paper, and discharge deflection amount determination means for determining the ink discharge deflection amount (discharge angle) to be provided by the discharge direction deflection means in accordance with the results of detection by the distance detection means.

Abstract: A liquid discharge apparatus that is capable of setting a proper deflection amount for deflecting an ink discharge direction even when the distance between the ink discharge surface and the ink landing surface of print paper varies and method of using same. The liquid discharge apparatus includes a head in which a plurality of nozzle-incorporated ink discharge sections are arrayed, discharge direction deflection means for deflecting the discharge direction of an ink discharged from a nozzle of each ink discharge section in the direction of ink discharge section arrangement, distance detection means for detecting the distance between the ink discharge surface of the head and the ink landing surface of print paper and discharge deflection amount determination means for determining the ink discharge deflection amount (discharge angle) to be provided by the discharge direction deflection means in accordance with the results of detection by the distance detection means.

Abstract: In a liquid-ejecting method for ejecting liquid contained in a liquid chamber from a nozzle as a liquid droplet group, the ejection amount of each liquid droplet of the continuously ejected liquid-droplet group can be stabilized corresponding to a wide frequency band of a pulse signal. Also, when one pixel is formed with a plurality of liquid droplets using a head capable of deflecting the ejecting direction of the liquid droplet, the image quality is improved by reducing the landing positional displacement between plural liquid droplets for forming the one pixel.

Abstract: Even when ejection characteristics of ink droplets are dispersed between unit heads and when arrangement accuracies of unit heads are dispersed, stripe unevenness is alleviated by correction corresponding to each unit head. In a liquid ejection apparatus having a line head (10) arranged by juxtaposing a plurality of (unit) heads (11) of liquid ejection parts so as to connect the head (11) to the adjacent head (11), the liquid ejection apparatus includes ejection direction changing means for enabling the ejection direction of liquid droplets ejected from a nozzle of each liquid ejection part to change in a plurality of directions in the arranging direction of liquid ejection parts and reference direction setting means for individually setting one reference principal direction for each head (11) among a plurality of ejection directions of liquid droplets by the ejection direction changing means.

Abstract: An inkjet printer device includes: an ejection portion that ejects an ink droplet onto a recording medium; a humidification portion that is provided upstream of the ejection portion in a transportation direction of the recording medium and ejects a wetting liquid droplet onto the recording medium; and a control portion that makes the ink droplet be ejected onto the recording medium from the ejection portion and the wetting liquid droplet be ejected onto the recording medium from the humidification portion, wherein the ejection portion is humidified during printing by letting the wetting liquid droplet ejected onto the recording medium evaporate from the recording medium.

Abstract: A droplet discharge head includes: a liquid reservoir which holds a liquid; a channel through which the liquid is guided to the liquid reservoir; and a driving element which changes the pressure in the liquid reservoir so as to discharge droplets of the liquid contained in the liquid reservoir through a nozzle, in which wall surfaces of the liquid reservoir and of the nozzle are arranged in a continuous line at a side opposite the channel with respect to the center of the nozzle as seen in a cross-sectional view through a central axis of the nozzle.

Abstract: A liquid discharge apparatus includes a liquid discharge head (120) having ink discharge nozzles (203) for discharging droplets of inks, and a head controller (162) for controlling the liquid discharge head to discharge droplet from liquid discharge units onto the surface of recording paper (P), wherein the liquid discharge head includes the plural liquid discharge heads in a direction perpendicular to movement direction of recording paper where the recording paper is relatively moved with respect to the liquid discharge head. The head controller serves to allow discharge timings of droplets in movement direction of the recording paper to be different every one pixel in movement direction of the recording paper to eliminate stripes apt to take place when a portion or the entirety of image is printed by one scanning operation to obtain image having less defect.

Abstract: A method for setting a boundary value at a level of error diffusion, comprising a step of defining a characteristic curve on a coordinate plane defined by a first axis indicating a perceptually uniform scale and a second axis indicating grayscale values of original data. The perceptually uniform scale is given by a normalized one of chromatic tristimulus values to the power of ?. A boundary value at a level of error diffusion is determined based on the characteristic curve and is stored in a storage device. The boundary value is read from the storage device for error diffusion processing, and error diffusion is performed on input image data using the read boundary value.

Abstract: In a method of substantially correcting gradation values in a gradation correcting unit, the number of reproducible gradations is substantially reduced. Selection information of a boundary value table for multi-value error diffusion is stored, by ejection condition, in an information storing unit of a liquid ejecting head that can represent one pixel with a large number of liquid droplets. When the liquid ejecting head is mounted, selection information matching an ejection condition is read out and a boundary value table corresponding to the selection information is set for reference by a half toning unit. Consequently, the boundary value table is optimized to correct a gradation characteristic without substantially reducing the number of reproducible gradations.

Abstract: A printing apparatus includes a head having a plurality of ink discharging portions provided in a juxtaposed linear relationship. A discharging direction of an ink droplet to be discharged from each ink discharging portion can be deflected in a plurality of directions. A printing resolution is determined in response to print data from among a plurality of printing resolutions, and the ink discharging portion from which an ink droplet is to be discharged are selected based on the determined printing resolution. Further, the discharging direction of an ink droplet of each selected ink discharging portion is determined, and a discharge execution signal with which the discharging direction is specified is transmitted to the selected ink discharging portion so that printing is executed with the printing resolution determined in response to the print data from among the plurality of printing resolutions.

Abstract: A maintenance method is provided for a discharging head in which multiple discharging portions are arranged in line. The maintenance method includes the steps of performing an operation of continuously discharging droplets from one discharging portion or a plurality of unadjacent discharging portions, and repeating the operation for one discharging portion or a plurality of discharging portions adjacent to the previous discharging portion or the previous discharging portions in a predetermined direction.

Abstract: An ejection condition adjustment apparatus includes a unit configured to set, in a case where a large head to be driven includes a plurality of small heads each having a number of orifices and the small heads are disposed adjacent to one another on the large head such that regions of the respective small heads where the orifices are provided partially overlap one another, a range of orifices to be used and an ejection timing for the individual small heads such that positional shifts between adjoining ones of patterns formed by the respective small heads are minimized.

Abstract: A print apparatus connected to a server via a network includes an improvement-information requesting unit configured to notify the server via the network of identification information unique to a print head; an improvement-information storage unit configured to store downloaded head-characteristic-improvement information; and a print processor configured to perform a print operation by referring to the head-characteristic-improvement information stored in the improvement-information storage unit.

Abstract: In a liquid discharging method for discharging droplets from a plurality of droplet discharging portions of a liquid discharging head, an actual pattern is created to indicate the discharging states of the droplets from the liquid discharging portions, and information about a defective liquid discharging portion having discharging failure is obtained by checking the discharging states. According to the information, the defective liquid discharging portion is prohibited form discharging, and discharging of droplets from a liquid discharging portion near the defective liquid discharging portion is controlled to reduce the influence of discharging failure of the defective discharging portion, and to correct image information on a recording medium.

Abstract: A liquid discharge apparatus that is capable of setting a proper deflection amount for deflecting an ink discharge direction even when the distance between the ink discharge surface and the ink landing surface of print paper varies and method of using same. The liquid discharge apparatus includes a head in which a plurality of nozzle-incorporated ink discharge sections are arrayed, discharge direction deflection means for deflecting the discharge direction of an ink discharged from a nozzle of each ink discharge section in the direction of ink discharge section arrangement, distance detection means for detecting the distance between the ink discharge surface of the head and the ink landing surface of print paper, and discharge deflection amount determination means for determining the ink discharge deflection amount (discharge angle) to be provided by the discharge direction deflection means in accordance with the results of detection by the distance detection means.

Abstract: In a liquid discharging method for discharging droplets from a plurality of droplet discharging portions of a liquid discharging head, an actual pattern is created to indicate the discharging states of the droplets from the liquid discharging portions, and information about a defective liquid discharging portion having discharging failure is obtained by checking the discharging states. According to the information, the defective liquid discharging portion is prohibited form discharging, and discharging of droplets from a liquid discharging portion near the defective liquid discharging portion is controlled to reduce the influence of discharging failure of the defective discharging portion, and to correct image information on a recording medium.

Abstract: A liquid discharge apparatus that is capable of setting a proper deflection amount for deflecting an ink discharge direction even when the distance between the ink discharge surface and the ink landing surface of print paper varies and method of using same. The liquid discharge apparatus includes a head in which a plurality of nozzle-incorporated ink discharge sections are arrayed, discharge direction deflection means for deflecting the discharge direction of an ink discharged from a nozzle of each ink discharge section in the direction of ink discharge section arrangement, distance detection means for detecting the distance between the ink discharge surface of the head and the ink landing surface of print paper and discharge deflection amount determination means for determining the ink discharge deflection amount (discharge angle) to be provided by the discharge direction deflection means in accordance with the results of detection by the distance detection means.