Ricoh Company, Ltd.

Fuji Xerox Co., Ltd.

Fujifilm Corporation

Ken Hasegawa

Daiji Nagaoka

Hiroshi Takayanagi

Takao Kuwabara

Takanori Masui

Koji Katsuragi

Seiji Tazaki

Tatsuya Taneichi

Hideaki Kashiwagi

Nobuyuki Matsuki

The inkjet printing device includes a dark ink container containing a dark ink of a color, a light ink container containing a light ink of the color, a dark ink discharging nozzle group for discharging the dark ink, and a light ink discharging nozzle group for discharging the light ink, wherein the light ink discharging group is disposed upstream of the dark ink discharging group in a sub-scanning direction, wherein the following Relationship 1 is satisfied: 10/100≤a ratio of a pigment content in the light ink to a pigment content in the dark ink≤40/100 Relationship 1.

Inkjet printing device

Provided is an ink including: water; a colorant; and an organic solvent, wherein the colorant is resin particles dyed with a fluorescent dye, wherein the resin particles contain a urethane resin, and wherein pH of the ink is from 9 through 11.

Ink, ink stored container, inkjet printing method, and inkjet printing apparatus

A white ink is provided. The white ink comprises water and hollow particles having a volume average particle diameter of from 300 to 800 nm. Each of the hollow particles comprises a hollow resin particle and an inorganic layer covering a surface of the hollow resin particle. The hollow resin particle has a resin layer having an average thickness of from 25 to 100 nm. The inorganic layer has an average thickness of from 5 to 20 nm.

White ink, storing container, inkjet printer, inkjet printing method, and printed matter

To provide an image forming set including: an aqueous ink including a colorant, a water-soluble organic solvent, and water; and a post-treatment liquid including a water-soluble organic solvent, water, and at least one of a urethane resin and an acrylic resin, wherein a solubility parameter of a mixed solution of the water-soluble organic solvent and the water in the post-treatment liquid is lower than a solubility parameter of a mixed solution of the water-soluble organic solvent and the water in the aqueous ink by 1.5 (cal/cm)or greater.

Image forming set, image forming apparatus, and image forming method

To provide a black ink for inkjet recording, including: carbon black and a complementary color pigment thereof each serving as a colorant; a water-soluble organic solvent; and water, wherein the carbon black, the complementary color pigment, or a combination thereof is a self-dispersion type pigment.

Black ink for inkjet recording, ink cartridge, and inkjet recording device

The radiographic image conversion panel includes a recording layer formed of a first accumulative phosphor that is irradiated with a radiation as a first primarily exciting light beam to excite primarily and accumulate energy, and is irradiated with a first secondarily exciting light beam to excite secondarily and generate a stimulating light beam and a correction marker for detecting a position formed of a second accumulative phosphor that is irradiated with a second primarily exciting light beam to excite primarily and accumulate the energy, and is irradiated with a second secondarily exciting light beam to excite secondarily and generate light with a wavelength shorter than a wavelength of the first secondarily exciting light beam. The radiographic image acquisition system uses the radiographic image conversion panel.

Radiographic image conversion panel and radiographic image acquisition system

An image rotating device includes first and second buffer memories to which image data, sequentially fed, are alternately written every m/n lines with respect to bit width n per pixel of the image data and bit width m per word of a page memory. An image data reader alternately reads m/n lines of image data written to the first and second buffer memories from an address designated in accordance with a set rotational angle with one word of the page memory at a time. An image data writer sequentially writes the image data of one word of the page memory to the address of the page memory designed in accordance with a set rotational angle. The image data are sequentially stored in the page memory with the data being rotated in real time.

Image rotating apparatus

A control circuit receives in advance data representing a predetermined number of copy jobs to be provided from a scanner and data representing a predetermined number of print jobs to be provided from external equipment, queues each of the copy jobs and print jobs on the basis of such data, and causes the jobs to be processed in a time divisional and parallel manner. Basically, the control circuit gives higher priority to the copy job. The priority order can be changed according to an instruction from a user interface. When a current job has been suspended, the control circuit causes a succeeding job to be processed earlier.

Multi-function image processing system

Contents of a copy job including a kind of a document and a number of copy sets are specified from a user interface to set a copy job, and based on such contents a total data amount of the copy job is calculated by a CPU. Further, an available memory amount of the storing unit is detected. If the total amount of the copy job is larger than the available memory amount, the document reading operation by an image input unit is suspended. The document reading operation is resumed when the available memory amount becomes larger than the total data amount.

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Kanagawa, Japan

Ken Hasegawa