Abstract: Provided is a method suitable for industrial-scale production of a dispersion in which nano-sized particles are dispersed. Specifically, a method for producing a nanoparticle-in-oil dispersion in which fine particles made up of a solid component, an aqueous liquid component or a mixture thereof are dispersed in an oil phase, includes: (1) a step of preparing a W/O emulsion-type precursor in which an aqueous phase in the form of droplets of an aqueous solution having a water-soluble substance dissolved therein is dispersed in an oil phase; and (2) a step of boiling the aqueous phase of the W/O emulsion-type precursor, to obtain a nanoparticle-in-oil dispersion in which the fine particles are dispersed in the oil phase.

Abstract: Provided is a method suitable for industrial-scale production of a dispersion in which nano-sized particles are dispersed. A method for producing a nanoparticle-in-oil dispersion in which fine particles made up of a solid component, an aqueous liquid component or a mixture thereof are dispersed in an oil phase, includes: (1) a step of preparing a W/O emulsion-type precursor in which an aqueous phase in the form of droplets of an aqueous solution having a water-soluble substance dissolved therein is dispersed in an oil phase; and (2) a step of boiling the aqueous phase of the W/O emulsion-type precursor, to obtain a nanoparticle-in-oil dispersion in which the fine particles are dispersed in the oil phase.

Abstract: A printer includes an authenticator that authenticates a login of a user, a prohibited job memory that stores a prohibition information list, a prohibition list register that loads job information on a print job from a storage medium installed in the printer and stores the job information in the prohibited job memory as the prohibition information list in [1] a case where a preset time has elapsed from the user's last operation or [2] a case where the storage medium is still installed in the printer at a user's logoff request, and a controller. In loading a print job from a storage medium installed in the printer, the controller prohibits a print process of the print job loaded from the storage medium when job information of the print job loaded from the storage medium corresponds with the job information contained in the prohibition information list.

Abstract: A printer includes an authenticator that authenticates a login of a user, a prohibited job memory that stores a prohibition information list, a prohibition list register that loads job information on a print job from a storage medium installed in the printer and stores the job information in the prohibited job memory as the prohibition information list in [1] a case where a preset time has elapsed from the user's last operation or [2] a case where the storage medium is still installed in the printer at a user's logoff request, and a controller. In loading a print job from a storage medium installed in the printer, the controller prohibits a print process of the print job loaded from the storage medium when job information of the print job loaded from the storage medium corresponds with the job information contained in the prohibition information list.