Canon Kabushiki Kaisha

Jumpei Jogo

Yuji Konno

Kazuo Suzuki

Masataka Kato

Toshimitsu Danzuka

Yoshitomo Marumoto

Shin Genta

Naoko Baba

Hiroaki Komatsu

Takayuki Ushiyama

Asako Tomida

Yumi Shimokodachi

Serena Yoshikawa

Yutaka Kawamata

Taichi Yokokawa

Yuhei Oikawa

Masaki Nitta

Satoshi Hayashi

Joji Katsuura

Kosuke Matsushita

Takeshi Yazawa

Satoshi Wada

Shingo Nishioka

Keiji Kuriyama

A recording apparatus that causes less degradation of image quality due to blurring caused by dot misalignment between an ink containing a coloring material and a reaction liquid includes a recording unit configured to record an image on a recording medium by applying an ink containing a coloring material and a reaction liquid containing a component that aggregates the coloring material, an acquisition unit configured to acquire multi-valued ink data to apply the ink, and a generating unit configured to generate first multi-valued reaction liquid data based on the multi-valued ink data and, when a tone value of a pixel of interest in the first multi-valued reaction liquid data is lower than a tone value of any one of a plurality of surrounding pixels around the pixel of interest, generate second multi-valued reaction liquid data by increasing the tone value of the pixel of interest.

Recording apparatus, method, and medium

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 control apparatus includes a control unit configured to perform control so that a distribution ratio based on which color separation data separated as having a predetermined color is distributed into data for a first nozzle array and a distribution ratio based on which color separation data is distributed into data for a second nozzle array are different depending on a tone value in the color separation data, and a generation unit configured to generate printing data to be used for printing by the first nozzle array based on the distributed data for the first nozzle array and generate printing data to be used for printing by the second nozzle array based on the distributed data for the second nozzle array.

Printing control apparatus and printing control method

An inkjet printing apparatus and an inkjet printing method are realized which can improve a print quality while minimizing the volume of waste ink, running cost and throughput degradations. For this purpose, the scan width is set according to the size and position of the print medium and then, based on that scan width, a location where the preliminary ejections are to be executed and the number of times that the preliminary ejection is to be executed in a single preliminary ejection session are determined.

Inkjet printing apparatus and inkjet printing method

This invention prevents a possible color mixing, that may occur more than a predetermined time after the wiping operation, by executing a pre-printing cleaning ejection while at the same time minimizing the amount of waste ink produced by the cleaning ejection. To this end, if a color mixing is determined as being likely to occur an elapsed time after the previous wiping operation, the pre-printing cleaning ejection uses a second ink volume U, which represents both the color mixing elimination ink volume and the ejection failure elimination ink volume. If it is decided that there is no likelihood of the color mixing occurring the elapsed time after the wiping operation, the pre-printing cleaning ejection uses the first ink volume D which represents only the ejection failure elimination ink volume.

Inkjet printing apparatus and method

In an inkjet apparatus using an inkjet head ejecting multiple types of inks different in viscosity after evaporation of solvent, a replacement timing for a component is judged by using a consumption amount of each type of ink and a generation rate in amount of ink droplets. Accordingly, in the case of using a large amount of ink strongly susceptible to fixed adhesion and increase in viscosity, the component is replaced at an earlier timing, which prevents fixed adhesion from influencing the print performance and the printing apparatus main body. By contrast, in the case of using a large amount of ink less susceptible to fixed adhesion and increase in viscosity, the component is replaced at a later timing and thus can be used until reaching its lifetime.

Inkjet apparatus and method of judging replacement timing for components of the apparatus

In an inkjet apparatus capable of ejecting an ink and a treatment liquid for insolubilizing or coagulating a color material in the ink, a replacement timing for a component of the apparatus is judged based on both the consumption amounts of the ink and treatment liquid measured when the two are consumed together and the consumption amount of the ink measured when the ink is consumed alone. Thus, the component is replaced at an earlier timing when the influence of fixed adhesion is great due to frequent ejection of both of the ink and treatment liquid, which prevents fixed adhesion from influencing the print performance and the printing apparatus main body. By contrast, when the fixed adhesion slowly develops because of less-frequent ejection of both of the ink and treatment liquid, the component is replaced at a later timing and thus can be used until reaching its lifetime.

Inkjet apparatus and method for judging replacement timing for components of the apparatus

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Kawasaki, Japan

Jumpei Jogo