Ricoh Company, Ltd.

Yuko Sekiguchi

Yoshihiro Norikane

Masaru Ohgaki

Andrew Mwaniki Mulwa

Shinji Aoki

Haruo Nakamura

Keisuke Uchida

Yohichiroh Watanabe

Takahiro Honda

Tetsuya Sonoda

A liquid droplet ejecting method for ejecting a liquid from at least one ejection hole to form the liquid into liquid droplets, the method including:

Liquid droplet ejecting method, liquid droplet ejection apparatus, inkjet recording apparatus, production method of fine particles, fine particle production apparatus, and toner

A liquid droplet ejecting method for ejecting a liquid from at least one ejection hole to form the liquid into liquid droplets, the method including: applying a vibration to the liquid in a liquid column resonance-generating liquid chamber, in which the ejection hole is formed, to form a standing wave through liquid column resonance, and ejecting the liquid from the ejection hole, which is formed in a region corresponding to an antinode of the standing wave, to form the liquid into liquid droplets.

A method of manufacturing toner is provided, including discharging a toner constituents liquid from multiple nozzles to form liquid droplets and solidifying the liquid droplets into toner particles. The multiple nozzles satisfy the following formula:2.5&#x2266;7.5wherein d represents an outlet diameter of each nozzle and p represents an interval between two nozzles.

Method of manufacturing toner, toner manufacturing apparatus, and method of manufacturing resin particles

A method and an apparatus for producing toner are provided. A fluid comprising a resin and a colorant is supplied to a retention member that includes a film on which multiple discharge openings are formed. The fluid which is supplied to the retention member is resonated so that liquid droplets thereof are discharged from the multiple openings. The liquid droplets which are discharged from the multiple openings are solidified to form mother particles of a toner.

Method and apparatus for producing toner

Disclosed is a method of manufacturing a toner, wherein a liquid drop forming part including a storage part configured to store a toner composition liquid in which a toner composition including at least a resin and a coloring agent is dispersed or dissolved, a thin film on which a nozzle facing the storage part is formed, and a vibration generating part configured to vibrate the thin film via the toner composition liquid in the storage part are used, wherein plural storage chambers partitioned by a partition wall(s) are formed in the storage part and a width of each storage chamber in a direction of arrangement of the plural storage chambers and a width of each storage chamber in a direction orthogonal to the direction of arrangement of the storage chambers are formed to be one-half or less of a wavelength &#x3bb; of a sonic wave generated in the storage part.

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Kanagawa, Japan

Yuko Sekiguchi