Canon Kabushiki Kaisha

Kei Yoshizawa

Yuji Konno

Takeshi Yazawa

Satoshi Wada

Yoshinori Nakagawa

Atsushi Takahashi

Yuji Hamasaki

Makoto Torigoe

Nobuhiro Kitabatake

Naomi Yamamoto

Hiroshi Tajika

Hidetsugu Kagawa

Shingo Nishioka

Hajime Nagai

Serena Yoshikawa

Naoko Baba

Hinako Ojiro

Hidehiko Kanda

Tetsuya Suwa

Kazuhiko Sato

Satoshi Azuma

Taku Yokozawa

Hiroshi Taira

Seiji Ogasawara

Noboru Kunimine

Yosuke Ishii

Hiroshi Kawafuji

Keiji Kuriyama

Sae Mogi

Akiko Aichi

Tatsuo Shimmoto

A generation unit, which is configured to process image data to generate print data for applying an ink and a reaction liquid such that the print data corresponds to respective passes, generates print data for the ink such that the ink is applied only in a pass of which the elapsed time after application of the reaction liquid to the print medium is equal to or longer than the first time and shorter than the second time. The first time is from the timing where the reaction liquid is applied to the print medium up to the timing where adjacent droplets of the applied reaction liquid come into contact with each other and coalesce to form a reaction liquid film. The second time is from the timing where the reaction liquid is applied to the print medium up to the timing where the formed reaction liquid film is dissolved.

Image processing apparatus, image processing method, printing apparatus, and storage medium

To provide a technology capable of appropriately suppressing deterioration in cutting accuracy of a slitter although the rigidity of a print medium changes, a printing apparatus is equipped with: a first conveyance unit configured to convey a print medium; a printing unit configured to print an image by applying ink to the print medium conveyed by the first conveyance unit; a cutting unit disposed on a downstream side in a conveyance direction in which the print medium is conveyed by the first conveyance unit and configured to cut the print medium, which is conveyed by the first conveyance unit, along the conveyance direction; and a second conveyance unit disposed on the cutting unit, and the printing apparatus includes a correction unit configured to correct a parameter related to conveyance of at least one of the first conveyance unit and the second conveyance unit, based on information about the print medium.

Printing apparatus, control method, and conveyance apparatus

A printing apparatus includes an image processing unit and generates a product by performing printing on a print medium conveyed in a conveyance direction intersecting a width direction, based on data for printing, and then cutting a width-direction end portion of a printed image, wherein the image processing unit calculates a first ink application amount of a first area formed at one end portion in the width direction on a leading edge side of the image which is located on a downstream side in the conveyance direction during printing and a second ink application amount of a second area formed at the other end in the width direction on the leading edge and enlarges the image data at a predetermined ratio to obtain the data for printing in a case where at least one of the first ink application amount and the second ink application amount exceeds a threshold value.

Printing apparatus and image processing apparatus

Luminance data indicating luminance of the print product illuminated by the lighting is calculated and processing for causing a high luminance region to have gradation characteristics is performed.

Image processing apparatus, image processing method, and storage medium for generating preview image data to be displayed on a display

A printing apparatus provides a conveyance operation in which a conveyance unit conveys a print medium in a conveyance direction, and includes a control unit to control a printing unit such that, in a case where an image is to be printed onto a print medium of a first type in a first state in which the print medium of the first type is supported by a first conveyance member and not supported by a second conveyance member, the printing unit uses a printing element included in a first region from which a distance to the print medium of the first type in a height direction perpendicular to a surface where the printing elements are arrayed is a first distance, and does not use a printing element included in a second region from which a distance to the print medium of the first type in the height direction is a second distance greater than the first distance.

Printing apparatus and control method

An illumination condition, which is used to irradiate a print product with light having illuminance higher than normal illumination, is derived based on exposure condition information at the time of photographing.

Information processing apparatus, control system, image processing system, and information processing method to derive illumination condition based on exposure condition

An image processing apparatus includes an obtaining unit to obtain image data and a dynamic range conversion unit to convert an input luminance signal included in the image data into an output luminance signal for an image printing apparatus by using a conversion parameter. A dynamic range of luminance of the converted image data is narrower than that of the unconverted image data before the dynamic range conversion. When the input luminance signal indicates an input black reference luminance value, the output luminance signal indicates an output black reference luminance value, and, when the input luminance signal indicates a predetermined reference input luminance value, the output luminance signal indicates a reference output luminance value, the reference output luminance value being a value calculated based on the predetermined reference input luminance value and the output black reference luminance value for observing a print product to be printed by the printing apparatus.

Image processing apparatus, image processing method, and storage medium that convert an input luminance signal included in image data into an output signal for printing by using a conversion parameter

An apparatus is configured to determine an illumination condition for irradiating a printed product with light. The printed product is generated by outputting an image onto a recording medium based on fed input image data. The apparatus includes an input unit configured to receive inputs of luminance dynamic range information of the input image data and exposure condition information at the time of imaging regarding the input image data, an acquisition unit configured to acquire characteristic information of the recording medium, and a determination unit configured to determine the illumination condition based on the luminance dynamic range information, the exposure condition information, and the characteristic information.

Apparatus, system, and method

In a color mode, among clear ink data CLand CL, only the data CLis set to a uniform use amount of 20%, while the use amount for the data CLis set to zero. Meanwhile, in a monochrome photo mode, the data CLindicates a usage of 10% to 40% near a white point, but starting at the intermediate gradations the data CLuse amount decreases while the data CLuse amount increases, with a data CLuse amount of 20% near a black point. In so doing, it is possible to sufficiently suppress bronzing in the color mode where coloring ink data exists, without imparting a particularly strong unnatural look except for specific colors. Meanwhile, in the monochrome photo mode where coloring ink data does not exist, high-level suppression of bronzing is possible, at the cost of a slight reduction in the glossiness of the printed material.

Image processing apparatus, inkjet printing apparatus, and inkjet printing method

An ink jet recording apparatus includes a recording head having a common liquid chamber and a plurality of nozzles configured to discharge ink supplied from the common liquid chamber using generation of bubbles, and a recovery unit configured to perform recovery processing on the plurality of nozzles, wherein the recovery unit performs the recovery processing while the recovery unit changes a distribution of flow velocity of the ink flowing from the common liquid chamber to the plurality of nozzles by generating bubbles within apart of the nozzles among the plurality of nozzles.

Ink jet recording apparatus and nozzle recovery method

Provided is an ink jet printing apparatus that, without causing an increase in apparatus size, can print an image having high evenness in both of image clarity and glossiness regardless a gradation or gamut of the image. For this purpose, on the basis of input image data, pieces of multivalued color data respectively corresponding to colored inks, and first multivalued data and second multivalued data that correspond to image enhancing liquid are generated. On a print medium, the colored inks and the image enhancing liquid according to the first multivalued data are printed at nearly the same timing, and after the printing of them has been completed, the image enhancing liquid according to the second multivalued data is printed. In doing so, gloss properties appearing on the print medium can be made to fall within certain ranges, respectively, independently of input image data.

Image processing apparatus and image processing method for printing an image using colored ink and clear liquid

An inkjet printing apparatus is provided which minimizes the amount of inks consumed for preventing the sedimentation of ejected inks on the platen ink absorber and which can effectively prevent the sedimentation of inks. To this end, a comparison is made between the ejected volume of easily sedimenting inks and the ejected volume of sedimentation restraining inks in terms of ink components. If the ejected volume of the sedimentation restraining inks is found not enough, a required amount of sedimentation restraining ink is additionally ejected.

Inkjet printing apparatus

Provided are an inkjet printing apparatus and a method of controlling an inkjet printing apparatus whereby the performing of a suction discharge operation, for air bubbles that have penetrated inside an ink supply line, can be suppressed to a minimum necessary number of times, and whereby the ink discharge volume that accompanies air bubble suction discharge operations can be kept low. The volume of an air bubble that penetrates into an ink supply line is estimated on the basis of an elapsed time since the last air bubble suction discharge operation, and in addition, the volume of an air bubble that penetrates into the ink supply line during main tank installation is predicted. The suction discharge operation (choke suction operation) for suctioning out and discharging air bubbles is conducted when the sum of these estimated volumes becomes equal to or greater than a predetermined value.

Inkjet printing apparatus and method of controlling inkjet printing apparatus

The inkjet printer can discharge a bubble in an ink flow path while suppressing ink consumption. Ink in an ink tank is supplied to a printing head through a flow path and filter. Bubbles in the flow path and printing head are discharged by applying a negative pressure to an ejection port of the printing head. At this time, after a first negative pressure has been applied to the ejection port with an on/off valve provided between the ink tank and the filter being closed, the on/off valve is opened to discharge the ink from the ejection port. Further, after that, a second negative pressure at a level that makes it difficult for a bubble to pass through the filter is applied to the ejection port to discharge a bubble present at a location, which is closer to the printing head than the filter is to printing head, from the ejection port together with the ink.

Inkjet printer and bubble reducing method for inkjet printer

A printing apparatus, including a print head having a discharge port, a stirring portion configured to stir ink in an ink tank, a valve disposed on a supply path, a cap for capping the discharge port, and a pressure reducing unit configured to reduce pressure in the cap, executes, in parallel, a stirring operation for stirring ink in the ink tank by the stirring portion and a pressure reducing operation for reducing pressure on the print head side from the valve in the supply path by the pressure reducing unit with the valve closed.

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Kawasaki, Japan

Kei Yoshizawa