Brother Kogyo Kabushiki-Kaisha

Takashi Kanzaki

Shuhei Suzuki

Kosuke Nukui

Yasuhiro Taga

Kazunari Matsuura

Kenta Hasebe

A printing apparatus, having a first head including first nozzles and first driving elements, a second head including second nozzles and second driving elements, first flow paths, a second flow path, and a controller, is provided. The controller is configured to acquire a first printing color gamut and, after loading the second flow path with the ink in the custom color, operate the first and second driving elements to print patches for first imaging color values. The first printing color gamut is a gamut including a custom color within a printing color gamut in a predetermined color space. The printing color gamut is a gamut including color values of colors printable in the inks in basic colors and the custom color. The first imaging color values are color values falling within the first printing color gamut among color values in image data of the image to be printed.

Printing apparatus, method for controlling printing apparatus, and computer-readable storage medium

An image recording apparatus includes: a jetting head which is movable in a main scanning direction and which has nozzles configured to jet an ultraviolet-curable type ink onto a printing medium; a light source which is configured to irradiate the ultraviolet-curable type ink jetted onto the printing medium with an ultraviolet ray; a movement mechanism which is configured to relatively move the printing medium with respect to the jetting head in a subsidiary scanning direction orthogonal to the main scanning direction; and a controller. The controller is configured to cause the ink contained in the jetting head to be agitated without jetting the ink at least during irradiation with the ultraviolet ray by the light source.

Image printing apparatus, image printing method, and medium storing image printing program

A printing apparatus having a head having first nozzles for inks in basic colors and second nozzles for an ink in a custom color, first flow paths for supplying the inks to the first nozzles, a second flow path for supplying the ink to the second nozzles, a display, and a controller, is provided. The controller is configured to acquire an imaging color gamut in a predetermined color space including color values included in image data, for each of a plurality of option colors, one of which is selectable as the custom color, acquire a printing color gamut, acquire an evaluation value for each of the option colors based on a comparison between the printing color gamut and the imaging color gamut, and before loading the second flow path with the ink in the custom color, display a ranked order of the option colors based on the evaluation values.

In an image processing device a controller is configured to perform: a first display operation; and a second display operation to display at least one of a target color and a non-target color in a manner different from the at least one of the target color and the non-target color in a printing target image displayed by the first display operation. The target color is a color targeted for color calibration and included in a color calibration space. The color calibration space is defined by a predetermined number of first grid points and a plurality of second grid points. The first grid points define a first polyhedron with a minimum volume enclosing the specified color. The second grid points define a plurality of second polyhedra with the minimum volume together with the first grid points. The color calibration space is a space enclosed by the second grid points.

Image processing device and printing apparatus displaying range of colors targeted for color calibration set for specified color

A printing device includes a printing unit and a controller. The controller performs: acquiring image data; acquiring an image color gamut that is a specific area of a predetermined color space occupied by color values included in the image data; receiving information on a first color that is specified by a user and is present in the image color gamut; executing, on the basis of whether the first color is present in a printing color gamut that is a specific area of the predetermined color space occupied by color values of colors printable by the printing unit, different gamut mapping processes on the image data; displaying, prior to printing based on the image data, the first color and preview images corresponding to results of the gamut mapping processes; and printing, using the printing unit, an image corresponding to the preview image selected by the user among the displayed preview images.

Printing device, printing method, and non-transitory computer-readable storage medium for displaying preview images corresponding to results of gamut mapping processes

An ink discharge apparatus includes a discharge head and a controller, the discharge head having a plurality of nozzle rows arranged in a first direction, each of the plurality of nozzle rows including a plurality of nozzles arranged to align in a second direction intersecting the first direction. The controller is configured to receive a print job and carry out a mode determining process to determine whether a print mode is a low gap print mode or a high gap print mode based on the print job, and a number of discharge reducing process to reduce the total number of discharging ink per unit time from the plurality of nozzles as compared with the case of the low gap print mode, if the print mode is determined as the high gap print mode.

Ink discharge apparatus, ink discharge method, and medium storing ink discharge program

In a printing apparatus, in a first mode a head ejects a first type of liquid onto a printing medium and an energy applying device applies energy to the first type of liquid to form a background, and subsequently the head ejects a second type of liquid onto the background and the energy applying device applies energy to the second type of liquid on the background so that an image is formed on the background. In a second mode the head ejects the second type of liquid onto the printing medium without forming a background, and the energy applying device applies energy to the second type of liquid. The controller performs setting a quantity of the second type of liquid to be used in the first mode, to be greater than a quantity of the second type of liquid to be used in the second mode.

Printing apparatus having a head configured to separately eject a first type of liquid to form a background and a second type of liquid to form an image

A fluid ejection apparatus is disclosed. One apparatus includes a first head chip and a second head chip. The first head chip includes nozzle groups A, A, Band C. The second head chip includes nozzle groups D, E, Eand F. The nozzle groups A, A, B, C, D, E, Eand F eject fluid at an average usage rates A, A, B, C, D, E, Eand F, respectively. The average usage rate Ais smaller than the average usage rate A. The average usage rate Bis smaller than the average usage rate A. The average usage rate C is smaller than the average usage rate A. The average usage rate Dis smaller than the average usage rate E. The average usage rate Eis smaller than the average usage rate E. The average usage rate F is smaller than the average usage rate E

Fluid ejection apparatus

There is provided a liquid discharge apparatus including: first and second liquid discharge heads and a controller. The first liquid discharge head includes n of nozzles NA-NAand m of nozzles NB-NB. The second liquid discharge head includes m of nozzles NC-NC. The first and second liquid discharge heads include m of nozzle pairs (NB, NC)-(NB, NC) A difference of position between the nozzle NBand the nozzle NCin the first direction is smallest in the j-th nozzle pair (NB, NC), of them of nozzle pairs (NB, NC)-(NB, NC), and a difference between the use rate RBof the nozzle NBand the use rate RCof the nozzle NCis smallest in the p-th nozzle pair (NB, NC) different from the j-th nozzle pair (NB, NC), of the m of nozzle pairs (NB, NC)-(NB, NC).

Liquid discharge apparatus

A fluid ejection apparatus is disclosed. One apparatus includes a first head chip and a second head chip. The first head chip includes nozzle groups A1, A2, B1 and C. The second head chip includes nozzle groups D2, E1, E2 and F. The nozzle groups A1, A2, B1, C, D2, E1, E2 and F eject fluid at an average usage rates A1, A2, B1, C, D2, E1, E2 and F, respectively. The average usage rate A2 is smaller than the average usage rate A1. The average usage rate B1 is smaller than the average usage rate A1. The average usage rate C is smaller than the average usage rate A1. The average usage rate D2 is smaller than the average usage rate E2. The average usage rate E1 is smaller than the average usage rate E2. The average usage rate F is smaller than the average usage rate E2.

A preliminary vibration number storage unit stores a first preliminary vibration characteristic which indicates a relation between a downtime of an ejection opening and a smallest number of vibrations in preliminary vibration, the smallest number of vibrations required to enable normal preliminary ejection from the ejection opening immediately after the preliminary vibration. The downtime of each ejection opening Tis irregularly distributed within a range between zero and T, the range defining the first preliminary vibration characteristic, and preliminary ejection is performed subsequently to the preliminary vibration. At this point, the preliminary vibration performed is set to include Nvibrations, the number of which corresponds to the downtime Tof the first preliminary vibration characteristic.

Liquid ejection apparatus for reducing visibility of dots unrelated to printed image

An inkjet head is provided with an ejection surface on which first and second ejection regions having a plurality of ejection openings ejecting different colors of ink are formed in proximity to each other or to partially overlap each other. A first wiping operation in which, after ink is forcibly ejected only from the first ejection region, the first ejection region is wiped by relative movement of the wiping member in a direction from the second ejection region toward the first ejection region, and a second wiping operation in which, after ink is forcibly ejected only from the second ejection region, the second ejection region is wiped by relative movement of the wiping member in a direction from the first ejection region toward the second ejection region are selectively performed.

Inkjet recording apparatus

Positions of flushing candidate pixels are provided in standard areas S formed from pixels arranged in a matrix pattern. A reference area formation section forms a reference area Ref by arranging two standard areas S adjacently to each other in both a main scan direction and a conveyance direction. In a range where there are overlaps with virtual pixel rowsnot associated with image dots for a virtual flushing area F virtually arranged at a randomly-determined position in the reference area Ref, an extraction section extracts pixels overlapping flushing candidate pixels in the reference area Ref. A head control section controls inkjet heads such that image dots and flushing dots corresponding to the extracted pixels are formed on a sheet P.

Growing community of inventors

Nagoya, Japan

Takashi Kanzaki