Canon Kabushiki Kaisha

Oriental Photo Industrial Co., Ltd.

Akihiro Mouri

Kazuo Isaka

Shuzo Kaneko

Tetsuro Fukui

Masato Katayama

Tsutomu Toyono

Ryosuke Hirokawa

Toru Yamane

Toru Ohnishi

Noboru Toyama

Hiroshi Taniuchi

Junichiro Kanbe

Yutaka Inaba

Kyosuke Deguchi

Kazuo Yoshinaga

Toshikazu Ohnishi

Yutaka Kurabayashi

Atsushi Sakamoto

Yomishi Toshida

Takeo Eguchi

Kenji Kagami

Noribumi Koitabashi

Masao Suzuki

Nobuhito Yamaguchi

Satoshi Masuda

Hidehito Takayama

Yoshiyuki Honda

Hiroaki Motooka

Katsuhiro Shirota

Akio Kashiwazaki

Yuji Kondo

Yoshio Takasu

Koji Inoue

Toshiya Yuasa

Susumu Nakamura

Kazunori Ueno

Katsumi Kurematsu

Tsuyoshi Shibata

Hitoshi Tsuboi

Masataka Yashima

Yasunori Fujimoto

Koichiro Nakazawa

Susumu Hirosawa

Hiroshi Fukumoto

Toshimori Miyakoshi

Kyo Miura

Ryohei Goto

Masao Ueki

Kozo Arahara

Takeshi Miyazaki

Masayuki A Suzuki

Satoshi Shimizu

Hideaki Mitsutake

Yoshiaki Murayama

Masahiko Enari

Noboru Koumura

Tohru Takahashi

Osamu Kanome

Kazuhiro Nakajima

Hiroyuki Kitayama

Katsumi Aoki

Yoshinobu Shiraiwa

Yasuyuki Takanaka

Kenichi Suzuki

Takuto Moriguchi

Yoshihiro Oguchi

Takashi Kai

Yoshimasa Araki

Makoto Shihoh

Katsuya Oikawa

Mitsutoshi Kuno

Takumi Otani

Keiji Ohkoda

Shoji Kikuchi

Kohzoh Arahara

Noriyuki Chino

Kenichi Matsumoto

Keiichirou Takeuchi

Noboru Tohyama

Kanako Soma

Toshihiro Fukasaka

Taku Higashiyama

Shinsuke Takeuchi

Masato Kotayama

Shuzo Kaneo

A recording apparatus includes an ink tank, a carriage, a recording head mounted on the carriage, a carriage control unit, and a supply tube connected to the recording head and the ink tank and including a bent portion that moves with carriage movement. The carriage control unit moves the carriage in predetermined directions to record on a recording medium. Assuming that, of an acceleration/deceleration area of a carriage moving area, an area in which pressure changes to decrease negative pressure in the recording head is a first area, and an area in which the pressure changes to increase the negative pressure in the recording head is a second area, the carriage control unit moves the carriage so that an absolute value of acceleration or deceleration of the carriage in the first area is less than an absolute value of acceleration or deceleration of the carriage in the second area.

Recording apparatus and recording method

Reaction liquid application Sto an ink receiving medium, formation of a first image by ink application S, liquid absorption Sfrom the first image by a porous body of a liquid absorbing member, cleaning Sof the porous body, and liquid collection Sfrom the porous body are repeated in an inkjet printing method. When the porous body comes into contact with the first image, first chemical species in the reaction liquid contributing to increasing the ink viscosity is contained, on the ink receiving medium and in the porous body, at a higher level in terms of molar equivalent per unit area than second chemical species in the ink also contributing to increasing the ink viscosity. In the liquid collection S, the liquid is collected so that the liquid remains in the porous body on the side to be brought into contact with the first image.

Printing method and printing apparatus

On a conveyance path of a liquid absorbing member including a porous body, a liquid absorbing unitthat absorbs a first liquid from a first image, a recovery liquid applying unitthat applies a recovery liquid to the porous body absorbing the liquid and a liquid collecting unitthat collects a liquid component absorbed by the porous body are arranged in this order, and a cleaning unitthat brings a cleaning member into contact with the conveyance path of the porous body is disposed at least between the liquid absorbing unit and the recovery liquid applying unit or between the liquid collecting unit and the liquid absorbing unit.

Ink jet printing apparatus and ink jet printing method

In a process of an ink receiving medium entering a nip part with a liquid absorbing member, force in a direction to sweep up an image to be processed as an absorption removal treatment target is reduced by changing a nip pressure of the nip part in a conveying direction of the ink receiving medium. Furthermore, when peeling off the liquid absorbing member from the ink receiving medium from the nip part, force for pulling a liquid component toward a porous body is effectively applied. As a result, it is possible to achieve high absorption and removal of the liquid component from the image to be processed while suppressing disturbance of the image to be processed.

Image forming apparatus and image forming method

An ink jet recording apparatus includes: an image forming unit for forming an ink image containing a liquid component and a coloring material on a moving ink receiving medium; and a liquid absorbing unit having a liquid absorbing member which absorbs at least a part of the liquid component from the ink image by coming into contact with the ink image on the ink receiving medium, in which, in a moving direction of the ink receiving medium, a curvature radius Rof the ink receiving medium at a contact start position between the liquid absorbing member and the ink image and a curvature radius Rof the liquid absorbing member at the contact start position satisfy a relationship in which R&#x3e;0, R&#x3c;0, and |R|&#x2264;|R

Ink jet recording apparatus and ink jet recording method

Disclosed is an ink jet recording apparatus including an image forming unit that forms a first image including a first liquid and a coloring material on an ink receiving medium; and a liquid absorbing member that includes a porous body which is configured to be brought into contact with the first image so as to absorb at least a portion of the first liquid from the first image, in which an average pore diameter of a first surface of the porous body which is configured to be brought into contact with the first image is equal to or smaller than 0.6 &#x3bc;m, an arithmetic average roughness Ra defined by JIS B 0601:2001 of the first surface of the porous body is equal to or smaller than 1.9 &#x3bc;m, an average pore diameter of a second surface, which is a back surface of the first surface, of the porous body is larger than the average pore diameter of the first surface, and a Gurley value defined by JIS P 8117 of the porous body is equal to or shorter than 10 seconds.

Ink jet recording apparatus

An ink jet recording apparatus including: an image forming unit that forms a first image containing a first liquid and a coloring material on a transfer body; and a liquid absorbing device including a liquid absorbing member having a porous body coming in contact with the first image to at least partially absorb the first liquid from the first image, and a cleaning member coming in contact with the porous body to clean the porous body wherein surface free energy Yof the transfer body, surface free energy Yof the porous body, surface free energy Yof the cleaning member, and a dispersion force component Yof surface free energy of the first image satisfy the following Equation (1):||&#x2003;&#x2003;(1).

An ink jet recording method repeatedly performing the following steps on a transfer body, a step of forming a first image including a liquid component containing water and a water-soluble organic solvent and an insoluble solid content; a liquid removing step of forming a second image, from which a part of a liquid component contained in the first image is removed; and a transferring step of transferring the second image onto a recording medium by heating the second image to a temperature equal to or higher than a minimum filming temperature of the second image, wherein the minimum filming temperature of the second image is a temperature equal to or higher than 100&#xb0; C.; and the first image is not subjected to a heat history equal to or higher than a boiling point of the water after the step of forming the first image and before the liquid removing step.

Transfer type ink jet recording method with cooled transfer body

When a porous body is repeatedly used to perform treatment of absorbing and removing an aqueous liquid component on an image which is formed using a reaction liquid and an ink and contains the aqueous liquid component and a coloring material, recovery treatment for applying a recovery liquid to the porous body is performed, the recovery liquid having a viscosity lower than a viscosity of the reaction liquid and the ink.

A liquid holding amount of a porous body of a liquid absorbing member for removing at least a portion of an aqueous liquid component from an image obtained by ink jet printing is controlled so as to reduce damage to the porous body while maintaining performance of removing attached matters from the porous body by using a cleaning member which abuts on the porous body and has an adhesive force.

Ink jet printing apparatus

In an ink jet recording method including a step of absorbing a liquid component from an image formed of ink and a reaction liquid by a porous body of a liquid absorbing member, a resin fine particle agglomerated by the reaction liquid are contained in the ink, and a particle diameter d50 of a solid content contained in a mixture of the ink after agglomeration and the reaction liquid is larger than an average pore diameter of a porous membrane of the liquid absorbing member, and thereby adhesion of a coloring material to the porous body can be suppressed.

Ink jet recording method using porous body

An inkjet recording method includes applying an aqueous ink and a reaction liquid for increasing the viscosity of the ink to an ejection target medium to form an ink image thereon. The ink image is then subjected to a liquid absorbing treatment using a porous body having a liquid absorbing surface. In the liquid absorption treatment, the liquid absorbing surface is brought into contact with the ink image to absorb at least a part of the liquid component from the ink image by the porous body and the porous body is used repeatedly while it is sometimes carried out from the liquid absorption treatment region for cleaning. Contact information of the porous body including the number of contact times and a contact pressure in each contact is stored and the gas permeability state of the porous body is evaluated by using such contact information.

Inkjet recording method and inkjet recording apparatus

An ink jet recording apparatus includes an image forming unit that forms a first image containing a first liquid and a coloring material on an ink receiving medium; and a liquid absorbing member that includes a porous body which is configured to be brought into contact with the first image so as to absorb at least a portion of the first liquid from the first image, in which the porous body is a porous sheet in which a first layer which is configured to be brought into contact with the first image, a second layer including a second fiber and a third layer including a third fiber are laminated in this order.

Ink jet recording apparatus and method of producing porous body

An ink jet printing method includes an ink image forming step of forming an ink image onto an ink receiving medium, a liquid absorbing step of performing liquid absorption treatment in which an aqueous liquid component is at least partially absorbed by a porous body from the ink image, by contacting a liquid absorbing surface of the porous body of a liquid absorbing member with the ink image in a liquid absorption treatment region, and a conveying step of conveying the porous body conveyed from the liquid absorption treatment region to the liquid absorption treatment region again. The method also includes a porous body checking step of forming a test pattern for testing an image quality, detecting the image quality of the test pattern, subjected to the liquid absorbing step, by an image quality detecting device, and determining a state of the porous body from obtained detection results.

Ink jet printing method and ink jet printing apparatus

An ink jet recording apparatus includes an image forming unit that forms a first image containing a first liquid and a coloring material on an ink receiving medium, a liquid absorbing member that has a porous body coming in contact with the first image and absorbing at least a part of the first liquid from the first image, and a liquid collecting device that collects the first liquid absorbed in the porous body. The porous body has a first surface that is a side contacting the first image, and a second surface opposing the first surface. An average pore size of the second surface of the porous body is larger than an average pore size of the first surface. In addition, the liquid collecting device includes a gas ejection member that ejects gas to the second surface of the porous body to extrude the first liquid from the second surface.

Growing community of inventors

Fuchu, Japan

Akihiro Mouri