Canon Finetech Inc.

Canon Finetech Nisca Inc.

Canon Aptex Kabushiki Kaisha

Yoichi Sonobe

Hiroyuki Ishinaga

Yuichi Takahashi

Hideaki Kishida

Mitsuhiro Mukasa

Kazuo Haida

Kouhei Ishikawa

Kenichi Tsuburaya

Ryuchi Kojima

Hirotaka Okuwaki

Hiromitsu Hirabayashi

Takahiro Tsutsui

Kayo Mukai

Chiharu Yumoto

Kenji Hatakeyama

Tomohiro Fujii

Masami Aruga

Daizo Kitajo

Hiromitsu Hirabayash

A recording medium, including: an ink-receiving layer configured to receive an ink for inkjet recording; and a transparent sheet having a total luminous transmittance of 50% or more, wherein the recoding medium has a layered structure in which the transparent sheet and the ink-receiving layer are sequentially stacked, and the ink-receiving layer includes a gap-absorption-type ink-receiving layer including a composition including at least inorganic fine particles and polyvinyl alcohol having a weight-average polymerization degree of 2,000 or more and 5,000 or less and a saponification degree of 70 mol % or more and 90 mol % or less.

Recording medium, recorded matter, and methods of manufacturing the medium and the matter

The present invention provides a print module, an information processing device, a print system, a print unit, an ink supply unit, a print method and program, all capable of quickly and easily meeting demands for a print medium size change, particularly to increased sizes, while at the same time coping with demands for faster printing speed. To this end, this invention constructs the print heads () in the form of print modules (M) so that their ink systems and signal systems are independent among the print modules. Each print module is set with identity information for its identification.

Print module, information processing device, print system, print unit, ink supply unit, print method, and program

A liquid ejection head, a liquid supply apparatus, a liquid ejection apparatus, and a liquid supply method can enable the channel resistance and pressure loss of liquid in the liquid ejection head to be reduced to increase the speed at which liquid is supplied to the nozzles. To achieve this, an ink supply chamber is placed so as to be laminated on a main ink supply chamber. A filter interposed between the main ink supply chamber and the ink supply chamber extends along a surface substantially parallel to a nozzle arrangement plane on which a plurality of nozzles are arranged.

Liquid ejection head, liquid supply apparatus, liquid ejection apparatus, and liquid supply method

An ink jet recording apparatus, which records a image on a recording medium using a recording head provided with a plurality of ink discharge ports, comprises a rotative platen having a plurality of supporting pieces arranged at predetermined intervals; rotation means for rotating the platen; conveyance means for conveying the recording medium; control means for controlling the rotation means to rotate the platen in the conveying direction of the recording medium in synchronism with the conveyance of the recording medium when recording is performed near the edge of the recording medium conveyed by the conveyance means. With the structure thus arrange, this ink jet recording apparatus is capable of performing the entire area recording (no margin recording) on a recording medium without staining the platen that supports the recording medium at the time of recording.

Ink jet recording apparatus and recording method therefor

Variations in the negative pressure in the print head is minimized by positively controlling the ink supply pressure. For this purpose, the pump () and the valve () are installed in the ink communication path between the ink tank () and the print head (), and are controlled to adjust the negative pressure applied to the print head ().

Ink supply apparatus and method for controlling the ink pressure in a print head

An example conventional method of avoiding a printing failure caused by residual bubbles in a print head involves counting from an initiation of a printing operation the accumulated number of print dots formed by the entire print head and, when the count value reaches a predetermined value, executing a recovery operation. Such a conventional method, however, requires the recovery operation to be performed frequently by selecting a threshold value for the worst condition. To solve this problem, the nozzles in the long print head are divided into a plurality of blocks, the accumulated number of print dots is counted for each block, the count value multiplied by a weighting value, which is determined according to the position of the block, is compared with a predetermined threshold, and, when at least one of the weighted count values exceeds the predetermined threshold, the recovery operation is executed.

Ink jet printing apparatus and ejection recovery method for printing head

An ink jet recording apparatus, which records a image on a recording medium using a recording head provided with a plurality of ink discharge ports, includes a rotative platen having a plurality of supporting pieces arranged at predetermined intervals; a rotation unit for rotating the platen; a conveyance units for conveying the recording medium; a control unit for controlling the rotation unit to rotate the platen in the conveying direction of the recording medium in synchronism with the conveyance of the recording medium when recording is performed near the edge of the recording medium conveyed by the conveyance unit. With the structure thus arranged, this ink jet recording apparatus is capable of performing the entire area recording (no margin recording) on a recording medium without staining the platen that supports the recording medium at the time of recording.

Growing community of inventors

Matsudo, Japan

Yoichi Sonobe