Canon Kabushiki Kaisha

Tetsurou Inoue

Hiromitsu Hirabayashi

Noribumi Koitabashi

Toshiharu Inui

Akitoshi Yamada

Kentaro Yano

Jiro Moriyama

Hidehiko Kanda

Makoto Aoki

Hitoshi Sugimoto

Shigeyasu Nagoshi

Daigoro Kanematsu

Miyuki Matsubara

Masaya Uetsuki

Fumihiro Gotoh

Yoshinori Nakajima

Yoshihisa Takizawa

Hideto Yokoi

Mayumi Yamamoto

Masaya Uetuki

Masaya Kikuta

Takayuki Fujita

A recording apparatus is provided for performing recording of an image on a recording medium using a plurality of recording heads disposed at a predetermined interval in a scanning direction. The recording apparatus includes a scanning element for causing the plurality of recording heads to scan corresponding divided recording regions of an entire recording region of the recording medium. The entire recording region is divided into the recording regions in the scanning direction. The recording apparatus also includes a recording control element for causing the plurality of recording heads to perform one of recording in a first recording mode and a second recording mode when the scanning element causes the plurality of recording heads to scan the corresponding divided recording regions. In the first recording mode the recording control element causes at least two of the plurality of recording heads to perform recording of respective portions of an image on respective divided recording regions of the entire recording region. In the second recording mode the recording control element causes at least two of the plurality of recording heads to perform overlapped recording of at least a portion of an image on an overlapped recording region of the entire recording region.

Recording apparatus and method for gradation recording in divided or

A method and an apparatus for ink jet printing use a print head including a first nozzle group for discharging a first ink, a second nozzle group for discharging a second ink and a third nozzle group for discharging a printability improving solution. The third nozzle group is displaced between the first nozzle group and the second nozzle group. The first nozzle group discharges the first ink on the printing medium based on image data to form an image, the third nozzle group discharges the printability improving solution on the image formed on the printing medium by means of another step, and the second nozzle group discharges the second ink on the image formed on the printing medium. The printability improving solution has higher penetrability into the printing medium compared to the ink. The method and apparatus can attain a clear colored, high density image without color mixing, which has high water resistance on plain paper, with a low running cost.

Ink jet printing method and ink jet recording apparatus

There are provided a color image forming method with liquids, capable of ensuring sharpness and high density in basically all the color images, and a recording apparatus therefor. This invention employs a black ink of relatively superior diffusibility and color inks of relatively superior penetrability, different in color from the black ink, and is characterized by forming the boundary area of a black image area with the color inks instead of the black ink.

Ink-jet recording method employing inks of different characteristics and

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Tokyo, Japan

Tetsurou Inoue