Abstract: A method of forming fixed images, including the step of applying a two-component developer containing a carrier and a toner containing a wax and a resin binder containing a crystalline polyester to a two-component development device with a linear speed of from 500 to 5,000 mm/sec, to develop the toner, wherein the crystalline polyester is contained in an amount of from 3 to 40% by weight and the wax in an amount of from 2.5 to 10% by weight, of the toner, and wherein the two-component development device comprises at least three magnet rollers which are arranged closely to each other along the perimeter of a photoconductor, wherein one magnet roller arranged on the uppermost side in the rotational direction of the photoconductor rotates in a direction opposite to the rotational direction of the photoconductor at the point therebetween, and the other magnet rollers rotate in the same direction as the photoconductor at the point therebetween.

Abstract: A toner for electrostatic image development containing a resin binder, a charge control agent, and a colorant, and wherein the charge control agent contains a metal complex of a salicylic acid compound and a quaternary ammonium salt of a carboxylic acid. The toner for electrostatic image development of the present invention is suitably used in, for example, development of a latent image or the like formed in electrophotography, electrostatic recording method, electrostatic printing method, or the like.

Abstract: A positively chargeable toner comprising a resin binder, a specified compound represented by the formula (I), and a higher fatty acid with a long-chain alkyl group having 8 to 22 carbon atoms and/or a metal salt thereof. The positively chargeable toner is a positively chargeable toner used for the development of a latent image formed in electrophotography, electrostatic recording method, electrostatic printing method or the like.

Abstract: A toner for electrostatic image development containing a resin binder, a charge control agent, and a colorant, and wherein the charge control agent contains a metal complex of a salicylic acid compound and a quaternary ammonium salt of a carboxylic acid. The toner for electrostatic image development of the present invention is suitably used in, for example, development of a latent image or the like formed in electrophotography, electrostatic recording method, electrostatic printing method, or the like.

Abstract: A method of forming fixed images, including the step of applying a two-component developer containing a carrier and a toner containing a wax and a resin binder containing a crystalline polyester to a two-component development device with a linear speed of from 500 to 5,000 mm/sec, to develop the toner, wherein the crystalline polyester is contained in an amount of from 3 to 40% by weight and the wax in an amount of from 2.5 to 10% by weight, of the toner, and wherein the two-component development device comprises at least three magnet rollers which are arranged closely to each other along the perimeter of a photoconductor, wherein one magnet roller arranged on the uppermost side in the rotational direction of the photoconductor rotates in a direction opposite to the rotational direction of the photoconductor at the point therebetween, and the other magnet rollers rotate in the same direction as the photoconductor at the point therebetween.

Abstract: A toner for development of electrostatic latent images, comprising a resin binder comprising a resin having a softening point of from 120° to 170° C., a glass transition point of from 58° to 75° C., and a percentage of chloroform-insoluble component of from 5 to 50% by weight; and a resin having a softening point of 90° C. or more and less than 120° C., a glass transition point of from 58° to 75° C., and a percentage of chloroform-insoluble component of less than 5% by weight; and at least one low-melting point wax having a melting point of from 60° to 90° C. The toner for development of electrostatic latent images has low lowest fixing temperature and is excellent in the offset resistance, the blocking resistance and the durability.

Abstract: A toner for development of electrostatic latent images, comprising a resin binder comprising a resin having a softening point of from 120° to 170° C., a glass transition point of from 58° to 75° C., and a percentage of chloroform-insoluble component of from 5 to 50% by weight; and a resin having a softening point of 90° C. or more and less than 120° C., a glass transition point of from 58° to 75° C., and a percentage of chloroform-insoluble component of less than 5% by weight; and at least one low-melting point wax having a melting point of from 60° to 90° C. The toner for development of electrostatic latent images has low lowest fixing temperature and is excellent in the offset resistance, the blocking resistance and the durability.

Abstract: A positively chargeable toner comprising a resin binder, a specified compound represented by the formula (I), and a higher fatty acid with a long-chain alkyl group having 8 to 22 carbon atoms and/or a metal salt thereof. The positively chargeable toner is a positively chargeable toner used for the development of a latent image formed in electrophotography, electrostatic recording method, electrostatic printing method or the like.

Abstract: A toner for electrophotography comprising a resin binder comprising as its main components (a) a crystalline polyester having a softening point of from 85° to 150° C., obtainable by polycondensing an alcohol component which comprises 80% by mol or more of an aliphatic diol having 2 to 6 carbon atoms and a carboxylic acid component which comprises 80% by mol or more of fumaric acid; and (b) an amorphous polyester and/or an amorphous polyester-polyamide, obtainable by polycondensing monomers comprising 50% by weight or more of an aromatic compound, wherein a weight ratio of the crystalline polyester to the amorphous polyester and/or the amorphous polyester-polyamide, i.e. crystalline polyester/(amorphous polyester and/or amorphous polyester-polyamide), is from 1/99 to 50/50.

Abstract: A toner for electrophotography comprising a resin binder comprising as its main components (a) a crystalline polyester having a softening point of from 85° to 150° C., obtainable by polycondensing an alcohol component which comprises 80% by mol or more of an aliphatic diol having 2 to 6 carbon atoms and a carboxylic acid component which comprises 80% by mol or more of fumaric acid; and (b) an amorphous polyester and/or an amorphous polyester-polyamide, obtainable by polycondensing monomers comprising 50% by weight or more of an aromatic compound, wherein a weight ratio of the crystalline polyester to the amorphous polyester and/or the amorphous polyester-polyamide, i.e. crystalline polyester/(amorphous polyester and/or amorphous polyester-polyamide), is from 1/99 to 50/50.

Abstract: The present invention aims at satisfactorily printing such as labels by electrophotographic process onto a surface to be printed of an object such as synthetic resin plates such as optical disks. When printing the surface to be printed of the object by transference of charged toner on a transfer medium onto the surface to be printed, an electric charge is supplied to the surface to be printed, by contacting an electrode connected to a power supply device with the surface to be printed, in the vicinity of a transfer position where the toner on the transfer medium is transferred onto the surface to be printed. The surface electric resistance of the surface to be printed of the object is adjusted to be equal to or less than 1.times.10.sup.14 .OMEGA., in advance of the transfer of the toner.

Abstract: An optical disc comprising a disc having a signal- recording layer, wherein a treated layer having a surface electric resistance of from 1.times.10.sup.3 to 1.times.10.sup.13 .OMEGA. is formed on the signal-recording layer, and the surface of the treated layer is subjected to electrophotographic printing. The optical disc can be desirably used as an optical disc, in which digital signals can be recorded, reproduced or erased, such as a digital audio disc, such as a compact disc, a video disc, or a CD-ROM.

Abstract: An electrophotographic dry developer which comprises a carrier and toner particles comprising a binder resin comprising (A) a polyester resin and (B) a styrene-acrylic resin obtained by co-polymerizing a monomer having an amino group, at a weight ratio of (A) to (B) ranging from 55:45 to 95:5, both resin (A) and resin (B) and a dyestuff or pigment of chromatic color. It is positively charageable and serves for color electrophotography.