Oki Data Corporation

Oki Electric Industry Co., Ltd.

Manami Hiraide

An image forming apparatus includes: an image forming unit that forms an image with a brilliant toner on a recording medium; a medium color determiner that determines whether the recording medium is white or colored; and an image forming controller that controls the image forming unit. When the medium color determiner determines that the recording medium is colored, the image forming controller increases an amount of the brilliant toner per unit area of the image formed on the recording medium as compared to when the recording medium is white.

Image forming apparatus for printing image using brilliant toner on recording medium

An image forming apparatus includes a first image forming part that forms a first image on a print medium using a photoluminescent developer containing a photoluminescent pigment; a second image forming part that forms a second image on the print medium using a coloring developer containing a coloring material; and a lamination part that laminates the first image and the second image on the print medium, wherein a viscoelastic phase angle (A) of the coloring developer and a viscoelastic phase angle (B) of the photoluminescent developer when measured at 125[° C.] using a viscoelasticity measuring device satisfy follow:21.1[°]≤()≤31.6[°].

Image forming apparatus and image forming method

A developer includes a metallic pigment and a binder resin. The developer includes a fine powder having a particle size smaller than a mode value in a volume particle size distribution of the metallic pigment. A proportion of the fine powder relative to the developer is equal to or higher than 4.6 percent and equal to or lower than 9.6 percent.

Developer, image forming unit, image forming apparatus, and method of manufacturing developer

A developer including developer particles. Each developer particle includes a binder resin, a brilliant pigment whose principal component is aluminum, a yellow pigment, a magenta pigment, a reddish-orange fluorescent dye, and a yellow fluorescent dye. When an average particle diameter of the brilliant pigments included in the developer particles is expressed as D (&#x3bc;m), a number proportion of the developer particles having particle diameters in a range from 4 &#x3bc;m to 1.2&#xd7;D &#x3bc;m in the whole developer particles is less than or equal to 4%.

Developer, developer storage body, developing device and image forming apparatus

There is provided with toner including one or more kinds of brilliant pigments, and one or more kinds of coloring matters. There are also provided with a toner cartridge including the toner, a developing unit including a storing portion that stores the toner, and an image forming apparatus including a storing portion that stores the toner.

Toner, toner cartridge, developing unit, and image forming apparatus

A transparent developer has a glass transition point of 63.0&#xb0; C. to 66.0&#xb0; C., both inclusive, and a melt temperature, indicative of a softening point by a 1/2 method, of 94.3&#xb0; C. to 97.0&#xb0; C., both inclusive.

Transparent developer, developer housing, development device, and image formation apparatus

A toner for developing an electrostatic charge image, including toner particles obtained by dissolving or dispersing a binder resin and an additive in an organic solvent to prepare an oil phase component, and dispersing and granulating the oil phase component in an aqueous medium containing an inorganic dispersant dispersed therein, wherein the binder resin is a polyester resin obtained from an alcohol component, a carboxylic acid component, and a long-chain alkyl group represented by formula (1), the long chain alkyl group being present in a mole percent ranging from 6.5 to 7.5 mol % based on total number of moles of the alcohol component, the carboxylic acid component, and the long-chain alkyl group, and the polyester resin having an acid value of from 4.9 to 7.0 mgKOH/g: 

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Tokyo, Japan

Manami Hiraide