Ricoh Company, Ltd.

Nec Corporation

Masahiro Kido

Juichi Furukawa

Hidefumi Nagashima

Yuta Nakamura

Hikaru Kobayashi

Hiroaki Takahashi

Michihiko Namba

Naohiro Toda

Yukihiro Imanaga

Tomohiro Nakagawa

Akiko Bannai

Shizuka Kohzuki

Naoto Shimura

Masaaki Tsuda

Yasuhiro Hayashi

Masanori Hada

Takahiro Yoshida

Hisashi Habashi

Ichiroh Fujii

Takashi Tamai

Kenichiroh Hashimoto

Ryo Tashiro

Provided is an ink containing water, a plurality of organic solvents, a color material, and resin particles, wherein the plurality of organic solvents contain at least one compound having a hydrogen bond term &#x3b4;H, which is a Hansen solubility parameter, of 4.1 MPaor higher but 9.5 MPaor lower and a boiling point of 170&#xb0; C. or higher and at least one diol compound containing 3 or 4 carbon atoms.

Ink, inkjet recording method, inkjet recording apparatus, and recorded matter

Provided is an ink including water, organic solvents, a color material, and resin particles, wherein the ink is used in a printing method including applying the ink onto a substrate including a resin to print, and the organic solvents include a compound, a diol compound including 3 or 4 carbon atoms, and 2-ethylhexyl alcohol, where the compound has a boiling point of 170&#xb0; C. or higher and an absolute value of a difference between Fh of the compound represented by Mathematical Formula 1 and Fh of the resin in the substrate represented by Mathematical Formula 1 is 5% or less,(%)=[&#x3b4;/(&#x3b4;)]&#xd7;100&#x2003;&#x2003;&#x3c;Mathematical Formula 1&#x3e;where, in Mathematical Formula 1, &#x3b4;H is a hydrogen bond term of the Hansen solubility parameter, &#x3b4;D is a dispersion term of the Hansen solubility parameter, and &#x3b4;P is a polarity term of the Hansen solubility parameter.

Ink, set of ink and substrate, ink-jet printing method, ink-jet printer, and print

A printer includes a liquid discharge head and a processor. The liquid discharge head includes a plurality of nozzles. The plurality of nozzles include a line of first nozzles to discharge first liquid and a line of second nozzles to discharge second liquid. The processor is configured to change a print speed in a print mode in which a preceding image is formed with at least the first liquid and a subsequent image to be superimposed on the preceding image is formed with the second liquid, in accordance with an amount of liquid applied to a recording medium to form the preceding image.

Printer and printing method which varies area printable in one-pass printing

A print method includes applying a first ink to a recording medium to form a first ink print layer, drying the first ink print layer to a drying ratio of 30 percent or less, and applying a second ink having a color different from that of the first ink to the first ink print layer to form a second ink print layer thereon, wherein the first ink includes a urethane resin particle and a water-soluble organic solvent having a boiling point of from 100 to 180 degrees C. or &#x3b2;-alkoxy propionamide of Chemical formula I, 

Print method, ink set, and inkjet print device

An inkjet recording device includes an ink, a discharging head to discharge the ink to a recording medium, and a cleaning liquid, wherein the ink comprises water, a urethane resin having a glass transition temperature of 0 degrees C. or lower, a pigment, a compound represented by the following Chemical formula 1, and a surfactant, 

Inkjet recording device, cleaning method, and set of ink and cleaning liquid

A cleaning liquid for rinsing an ink adhering to an article includes water and a first organic solvent, wherein a liquid mixture of the water and the first organic solvent has a Hansen solubility parameter including a hydrogen bond term of 10.0 (cal/cm)or less, wherein the ink includes water, a second organic solvent, a polyurethane resin particle, and a polysiloxane surfactant having an HLB value of 8 or less, wherein the polyurethane resin particle accounts for 5 percent by mass or more of a total amount of the ink.

Cleaning liquid, container, inkjet printing method, inkjet printing device, and set of ink and cleaning liquid

A printing apparatus includes a liquid discharge device, a carriage, and a controller. The liquid discharge device includes a first nozzle row to discharge a first liquid to form an image and a second nozzle row to discharge a second liquid of a type different from the first liquid. The carriage is mounted with the liquid discharge device and reciprocally movable in a main scanning direction. The controller is configured to control the liquid discharge device to discharge the second liquid onto a region of a medium including another region onto which the first liquid is discharged. The controller includes a control unit to control the liquid discharge device to discharge the second liquid from the second nozzle row in both of forward movement and backward movement of the carriage and discharge the first liquid from the first nozzle row in one of the forward movement and the backward movement.

Printing apparatus, recording medium storing program, and printing method

An ink including: water; at least one organic solvent; a polysiloxane surfactant; and acryl-silicone resin particles, where the polysiloxane surfactant has an HLB value of 8 or less.

Ink, inkjet printing apparatus, inkjet printing method, and printed matter

A cleaning liquid for an inkjet recording apparatus is provided. The cleaning liquid includes an organic solvent having a boiling point of less than 250&#xb0; C. and no organic solvent having a boiling point of 250&#xb0; C. or more. The organic solvent having a boiling point of less than 250&#xb0; C. includes two or more methoxy-group-containing organic solvents and at least one of 1,2-propanediol, 1,3-propanediol, 1,2-butanediol, and 2,3-butanediol.

Cleaning liquid for inkjet recording apparatus, method for cleaning inkjet recording apparatus, recording method, and cleaning and filling liquid

An ink for inkjet includes water; two or more hydrosoluble organic solvents; a pigment; and a resin particle more than the pigment by weight. A hydrosoluble organic solvent A having the smallest SP value and a hydrosoluble organic solvent B having the largest SP among the two or more hydrosoluble organic solvents satisfy the following relations (1) and (2):value of hydrosoluble organic solventvalue of hydrosoluble organic solvent&#x2267;3&#x2003;&#x2003;(1)boiling point of hydrosoluble organic solvent&#x3e;boiling point of hydrosoluble organic solvent&#x2003;&#x2003;(2).

Ink for inkjet and inkjet recording method

An inkjet ink set is provided. The inkjet ink set includes a first ink including a resin A and an organic solvent A; and a second ink including a resin B and an organic solvent which is the same as or different from the organic solvent A. The minimum film forming temperature (MFT) of the resin A is lower than that of the resin B.

Inkjet ink, inkjet recording method using the inkjet ink, and print formed by the inkjet ink

A topology information automatic configuration method for configuring topology information indicating how to connect each equipment, based on configuration information, including IP address and subnet mask, established for every interface of each equipment connected to a network, comprising: a network address calculation step for obtaining network address of a subnetwork to which an interface is connected, as for every interface, based on the IP address and the subnet mask of the interface; and a topology information configuration step for configuring the topology information indicating that each equipment including an interface having the identical network address obtained in said network address calculation step, is connected to the subnetwork of the above identical network address and that the equipment having a plurality of interfaces connect together the subnetworks indicated by the network addresses of the plurality of interfaces obtained in said network address calculation step.

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Kanagawa, Japan

Masahiro Kido