Konica Minolta, Inc.

Konica Minolta Business Technologies, Inc.

Konica Corporation

Fuji Jukogyo Kabushiki Kaisha

Konica-minolta Holdings, Inc.

Satoshi Uchino

Shinya Obara

Okushi Okuyama

Takuya Takahashi

Futoshi Kadonome

Koji Shibata

Kosuke Nakamura

Ikuko Sakurada

Akihiko Itami

Takeo Oshiba

Yukio Hosoya

Hiroyuki Konno

Junya Ueda

Shigeki Takenouchi

Kouji Shibata

Mikio Kouyama

Nobuaki Kobayashi

Noriyuki Kimpara

Kouichi Sugama

Masahiro Anno

Tatsuya Nagase

Meizo Shirose

Masao Asano

Fumitaka Mochizuki

Kazuhisa Shida

So Matsuya

Hiroshi Yamazaki

Kazuhiko Sato

Shiro Hirano

Noboru Ueda

Isao Endo

Junya Onishi

Ryuichi Hiramoto

Hiroyuki Kozuru

Yoshiyasu Matsumoto

Yasuko Uchino

Hidehito Haruki

Keiji Arai

Takeo Ohshiba

An image forming apparatus includes: a controller that controls the image forming apparatus; a memory that stores noise levels produced by a plurality of devices constituting the image forming apparatus during operation of the devices; and a microphone that accepts a speech instruction for the image forming apparatus. The controller accepts a job, detects a speech level from the speech accepted by the microphone, compares the detected speech level with a noise level that corresponds to the job to be executed in the image forming apparatus and that has been read from the memory, and controls, based on a result of the comparison, which one of a process of accepting the speech instruction and a process of executing the job in the image forming apparatus should be preferentially performed.

Image forming apparatus

An information processing apparatus includes: a plurality of devices each including a hardware processor; and a display shared among the devices, wherein in response to detection of a pointer in a display region of the display, the display transmits detected position information indicating a detected position of the pointer to each of the devices, and the hardware processor of one of the devices determines whether a user operation by the pointer is an operation directed to the one of the devices, in accordance with the detected position information received from the display.

Information processing apparatus, method of controlling information processing apparatus, and recording medium

A touch panel sharing support apparatus applicable for sharing a touch panel by a first system and a second system independent of each other, includes: a storage that stores definition data defining a first region for the first system and a second region for the second system, on a touch surface of the touch panel; a hardware processor that discriminates which of the first region and the second region a touched position on the touch surface belongs to on the basis of the definition data; and a transmitter that transmits operation data concerning operation onto the touch surface to the first system in a case where the hardware processor discriminates that the position belongs to the first region and transmits the operation data to the second system in a case where the hardware processor discriminates that the position belongs to the second region.

Touch panel sharing support apparatus, touch panel sharing method, and computer program

To provide a two-component developer for electrostatic charge image development, the two-component developer enabling a high image quality to be kept and enabling the occurrence of fogging to be suppressed even in continuous printing of an image high in coverage rate. The two-component developer for electrostatic charge image development includes a toner particle including a toner base particle and an external additive disposed on the surface of the toner base particle, and a carrier particle including a core material particle and a covering section disposed on the surface of the core material particle, wherein the external additive includes an alumina particle, and the percentage of exposed area of the core material particle is 4.0% or more and 15.0% or less.

Two-component developer for electrostatic charge image development

Provided is an electrostatic image developing toner containing toner mother particles having external additives on a surface of the mother particle, wherein the external additives contains calcium titanate particles having an average primary particle size in the range of 50 to 150 nm, and alumina particles; and an average primary particle size of the alumina particles is less than the average primary particle size of the calcium titanate particles.

Electrostatic image developing toner and image forming method

Provided is a two-component developer for developing an electrostatic latent image containing: toner particles having toner mother particles and an external additive on a surface of the toner mother particles; and carrier particles, wherein the external additive contains alumina particles; the alumina particles are subjected to a surface modification with a hydrophobilizing agent; among the hydrophobilizing agent existing on the surface of the alumina particles after the surface modification, a ratio of the hydrophobilizing agent in a state of being liberated from the surface is 20% or less when extraction treatment is performed under a predetermined condition; the alumina particles have a number average primary particle diameter in the range of 5 to 60 nm; and the carrier particles have a resin covering layer, and the resin covering layer is formed with an alicyclic (meth)acrylate monomer.

Two-component developer for developing electrostatic latent image

Provided is a two-component developer for developing an electrostatic latent image incorporating: toner particles each containing a toner mother particle having an external additive on a surface of the toner mother particle; and carrier particles each having a core material particle and a covering layer containing a resin on a surface of the core material particle, wherein the external additive contains inorganic particles; the inorganic particles are subjected to surface modification with silicone oil; a carbon content remained on a surface of the inorganic particle after the surface modification is within 3.0 to 10.0 mass %; a free carbon ratio on the surface of the inorganic particle is 70.0% or more; the carrier particles have a resistance in the range of 1.0&#xd7;10to 5.0&#xd7;10&#x3a9;&#xb7;cm; and the resin in the covering layer contains a resin formed from a monomer containing an alicyclic methacrylic acid ester monomer.

The disclosure concerns an electrostatic latent image developer including: a toner having toner base particles and an external additive; and a carrier, wherein the external additive contains silicone oil-treated silica and titanium oxide, Net intensity of titanium (Ti) in the toner to be measured by X-ray fluorescence analysis is 0.5 to 5 kcps, the carrier has a resin coating layer coating core material particles, and the resin coating layer has a constituent unit formed from an alicyclic (meth)acrylic acid ester.

Electrostatic latent image developer and method for producing electrostatic latent image developer

An electrostatically charged image developing toner includes a particulate toner matrix containing an external additive on the surface of the particulate toner matrix. The external additive includes silica particles A and silica particles B. The silica particles A have a number average primary-particle diameter in the range of 40 to 100 nm and an average circularity in the range of 0.50 to 0.90, and are surface-modified with silicone oil. The silica particles B have a number average primary-particle diameter of 25 nm or more and smaller than the number average primary-particle diameter of the silica particles A, and are surface-modified with alkylalkoxysilane having a specific structure or silazane.

Electrostatically charged image developing toner and electrostatically charged image developing two-component developer

An electrostatic charge image developing toner includes toner particles including a particulate toner matrix and an external additive adhering to a surface of the particulate toner matrix. The particulate toner matrix includes a crystalline polyester resin. The external additive includes silica particles. The silica particles are secondary particles including primary particles having a diameter in the range of 30 to 90 nm. The secondary particles have an average circularity in the range of 0.25 to 0.50. The secondary particles have an average aspect ratio of 3.0 or more.

Electrostatic charge image developing toner

A toner for developing electrostatic images, including toner particles containing an external additive on surfaces of toner matrix particles. The external additive contains at least a lanthanum-containing titanate compound.

Toner for developing electrostatic images

Provided is a carrier for electrostatic charge image development which provides a two-component developer having a high electric charge amount, a suppressed variation in an electric charge amount caused by an environmental change, and excellent durability, even if a low temperature fixable toner is used. A carrier for electrostatic charge image development of the present invention includes: carrier particles in which a core particle surface is coated with a coating material containing a resin, wherein the coating material contains phosphorus element, and the resin contains structural units derived from an alicyclic (meth)acrylic acid ester compound.

Carrier for electrostatic charge image development and two-component developer for electrostatic charge image development

A toner for developing an electrostatic latent image includes: toner base particles containing a hybrid crystalline polyester resin having a crystalline polyester polymerized segment and an amorphous polymerized segment chemically bonded to each other and an amorphous resin; and an external additive including fatty acid metal salt particles, wherein a volume median diameter of the fatty acid metal salt particles is from 3.0 to 5.0 &#x3bc;m.

Toner for developing electrostatic latent image

The toner of the present invention contains: a toner base particle, and a silica particle and a fatty acid metal salt particle adhering to a surface of the toner base particle. The toner base particle contains a crystalline polyester resin and an amorphous polyester resin. The toner particle has an average circularity of 0.945 to 0.965. The silica particle has a volume average particle size of 70 to 300 nm, and has an average circularity of 0.5 to 0.9. The fatty acid metal salt particle has a median diameter based on a volume of 0.50 to 2.00 &#x3bc;m.

Toner

An electrostatic latent image developing toner of the present invention includes toner base particles and particles containing a fatty acid metal salt. The toner base particles contain a crystalline resin containing a segment of a first resin and a segment of a second resin chemically bonded to each other and an amorphous resin containing at least the second resin. The crystalline resin is a hybrid crystalline polyester resin. The first resin is a crystalline polyester resin. The second resin is an amorphous resin. The volume-based median diameter (Da) of the toner base particles and the volume-based median diameter (Db) of the particles containing the fatty acid metal salt satisfy the relations represented by Expressions (1) and (2) below:0.5 &#x3bc;m&#x2266;&#x2266;2.0 &#x3bc;m&#x2003;&#x2003;Expression (1)0.1&#x2266;0.5.&#x2003;&#x2003;Expression (2)

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Hino, Japan

Satoshi Uchino