Canon Kabushiki Kaisha

Takeshi Yazawa

Hitoshi Nishikori

Hiroshi Tajika

Daisaku Ide

Yuji Konno

Atsuhiko Masuyama

Akiko Maru

Hirokazu Yoshikawa

Satoshi Seki

Hideaki Takamiya

Jun Yasutani

Fumiko Yano

Naoji Otsuka

Minoru Teshigawara

Hitoshi Sugimoto

Toshiyuki Chikuma

Kiichiro Takahashi

Osamu Iwasaki

Hidehiko Kanda

Satoshi Wada

Keiji Kuriyama

Atsushi Takahashi

Yoshinori Nakajima

Hinako Ojiro

Kei Yoshizawa

Makoto Torigoe

Takayuki Ushiyama

Akihiro Tomida

Naomi Yamamoto

Hiroyuki Saito

Hidetsugu Kagawa

Kosuke Yamamoto

Yoshito Mizoguchi

Shingo Nishioka

Hinako Iritani

Hisashi Ishikawa

Hiroyuki Inoue

Takashi Nojima

Takeshi Iwasaki

Noriko Sato

Masashi Hayashi

Tomokazu Yanai

Masahito Yoshida

Manabu Kanazawa

Yasufumi Tanaami

Yasuyuki Hirai

Hajime Nagai

Hirokazu Kameda

Shusuke Inamura

Hirokazu Tanaka

Tetsuya Suwa

Yuji Hamasaki

Koichiro Kawaguchi

Akihiko Nakatani

Takaaki Ishida

Shuichi Tokuda

Eiji Komamiya

Kaneji Yamada

Serena Yoshikawa

Toshiro Yoshiike

Ayako Ohta

Masahiko Kubota

Jiro Moriyama

Yoshiaki Murayama

Yoshitomo Marumoto

Shinjiro Hori

Yutaka Kano

Hideo Saikawa

Masao Maeda

Junichi Saito

Hiroshi Taira

Shin Genta

Yoichi Takada

Naoko Baba

Tsuyoshi Santo

Peter Alleine Fletcher

Kieran Gerard Larkin

Kenji Maeda

Tsutomu Shimada

Eiichi Nakata

Yoshio Nakajima

Yoshitaka Okamura

Stephen James Hardy

Yumi Shimokodachi

Kyohei Kikuta

Jumpei Jogo

Ben Yip

Taichi Yokokawa

Scott Alexander Rudkin

Yoshifumi Fujita

Steven Parker

A printing apparatus performs control so that out of N scans for printing an image in a predetermined region on a print medium, a total application amount of a reactive liquid printed by first N/2 scans and a total application amount of the reactive liquid printed by second N/2 scans may be different between a case where an application amount of the reactive liquid per unit area which corresponds to the predetermined region is a first amount and a case where the application amount of the reactive liquid per unit area is a second amount larger than the first amount.

Printing apparatus and printing method

A printing apparatus includes a printing unit to apply ink containing a coloring material, and a reactive liquid that reacts with the ink, to a printing medium, a reading unit to read an ink image on the printing medium, and a printing control unit to cause the printing unit to print a plurality of ink images different in application amount of the reactive liquid on the printing medium. In addition, a determination unit determines an application amount of the reactive liquid in printing using a predetermined type of printing medium, based on a ratio of a plurality of reading results obtained by the reading unit by reading the plurality of ink images printed on the predetermined type of printing medium.

Printing apparatus applying ink containing a coloring material and a reactive liquid, control method, and storage medium

A technique capable of obtaining the displacement amount of the ejection position of a reaction liquid without changing a test pattern according to the configuration of the ejection head is to be provided. A test pattern including a detection pattern, which extends in a predetermined direction and in which, if divided into two, at least two inks and the reaction liquid are ejected to one area and only the at least two inks or the at least two inks and the reaction liquid of an amount that is smaller than that of the reaction liquid ejected to the one area are ejected to the other area, is printed, and the optical characteristics of the printed detection pattern are obtained. Further, based on the obtained optical characteristics of the detection pattern, the displacement amount of the ejection position of the reaction liquid in the predetermined direction is obtained.

Printing apparatus, printing method, and storage medium

An image processing apparatus includes an acquisition unit that acquires N-valued image data corresponding to an image including at least one object, and edge data indicating an edge area of the object, an image processing unit that generates M-valued (N>M≥2) quantized data where each of a plurality of pixels is associated with one of a value indicating that no dot is to be recorded and a value indicating that a dot is to be recorded, based on the acquired image data, using an image processing parameter, and a changing unit that changes at least one pixel among pixels that indicate the edge area of the object in the edge data and have the value indicating that no dot is to be recorded in the quantized data so that the at least one pixel has the value indicating that the dot is to be recorded.

Image processing apparatus, image processing method, and storage medium for improving the quality of printed edges

An inkjet printing apparatus includes a printhead in which a plurality of ejection ports that eject ink are formed, a carriage mounted with the printhead and reciprocated in a predetermined direction, a conveyance unit to convey a print medium, a platen to support, at a printing position, the conveyed print medium, and an obtaining unit to obtain information regarding a distance from an ejection port surface of the printhead to the print medium at positions in the predetermined direction. The apparatus controls an ink ejection timing in accordance with the information regarding the obtained distance and information corresponding to the number of passes of printing, which is the number of times of moving the carriage to print the image in a unit area of the print medium.

Inkjet printing apparatus and control method thereof

A plurality of test patterns are printed with different print conditions, the test patterns each being formed by two inks out of a plurality of inks and a reaction liquid and including a plurality of patterns among which ejection positions of the reaction liquid relative to ejection positions of the two inks are displaced by a predetermined amount at a time. The optical properties of the respective test patterns printed on the print medium are detected. A displacement amount of the relative ejection positions of the reaction liquid from the ejection positions of the plurality of inks is obtained based on the optical property of the test pattern in which an optical density difference between the patterns in the test pattern is greater than a predetermined value and which has an optical density of a lowest level among the optical properties of the test patterns detected.

Printing apparatus and method for controlling the same

Disclosed is an image processing apparatus including: a derivation unit configured to derive a target luminance characteristic based on a viewing condition of an image and a print luminance characteristic predicted based a reflection characteristic corresponding to data thereon; a unit configured to generate print image data on an image by converting input image data by using a tone conversion characteristic that is set based on these characteristics, in which the derivation unit derives, in a case where a reproduction range of an illumination intensity in the print luminance characteristic is different, the target luminance characteristic so that a liner area of an output luminance in a case where the reproduction range is relatively large becomes large.

Image processing apparatus, image processing method, storage medium, and image forming 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 print position adjustment mode is performed with high accuracy while consumption of print media is saved. An inkjet printing apparatus prints an adjustment pattern including multiple patches for adjusting print positions of dots by a print head on a print medium. Patches set next to each other in a scanning direction are printed above platen ribs at intervals based on rib pitches at which the platen ribs are arranged.

Inkjet printing apparatus and printing method using adjustment pattern

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

There is a case where a reading unit cannot read an entire area of a recording medium in a scanning direction of a carriage, or a case where reading accuracy is low in the entire area. In such a case, a result of reading a test pattern for adjusting an ejection timing at each position cannot be obtained with high accuracy in a single reading operation. In order to solve the issue, a recording apparatus performs a reading operation a plurality of times and generates, based on results from the respective operations, an adjustment value for adjusting the ejection timing at each position in the scanning direction.

Recording apparatus, control method, and storage medium

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 converts, according to light on an image printed based on input image data, the input image data into image data for illumination output superimposed on the image, includes a deriving unit deriving an observing condition, an estimating unit estimating luminance characteristics based on the observing condition and reflectance characteristics corresponding to print image data, an introducing unit introducing target luminance characteristics based on the print luminance characteristics, a setting unit setting illumination converting characteristics converting the input image data into the image data for illumination output based on the print luminance characteristics and the target luminance characteristics, and a converting unit converting gradation of the input image data using the illuminance characteristics, and the introducing unit introducing the target luminance characteristics such that, when reproducing ranges in the print luminance characteristics are different, a linear region of output luminance of relatively large reproducing range becomes larger.

Image processing apparatus, image processing method and program, and image display apparatus for converting image data according to light intensity utilizing observation characteristics

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

Growing community of inventors

Yokohama, Japan

Takeshi Yazawa