Abstract: An image forming method is disclosed, which includes steps of cleaning toner remaining on a photoreceptor surface by a cleaning blade which is arranged on counter direction to rotation direction of the photoreceptor, supplying a fatty acid metal salt onto the photoreceptor surface after the cleaning, spreading the supplied fatty acid metal salt on the photoreceptor surface by using a spreading blade which is arranged on trail direction to rotation direction of the photoreceptor, charging the photoreceptor by a charging member, exposing the photoreceptor to form a latent image, developing the latent image by a developer to form a toner image on the photoreceptor, and transferring the toner image onto an image receiving member by a transfer roller facing to the photoreceptor through the image receiving material, in which the toner comprises a binder resin and a colorant, in which the toner has a glass transition point of from 20 to 45° C.

Abstract: An objective is to provide a highly durable carrier for a developer which is capable of forming a high-definition image stably with no deterioration of a developing property since the carrier resistance and the charging ability remain stable even though the developer is used for a long duration; a method of manufacturing the carrier; and an image forming method employing the same. Disclosed is an electrophotographic carrier comprising a carrier core material and provided thereon, a resin-coated layer comprising charge control particles and low-resistive particles, wherein an initial carrier resistance is 5×108-3×1010 ?cm; a concentration of the low-resistive particles grows higher toward a surface of the layer from an inner part of the layer; and a concentration of the charge control particles grows lower toward a surface of the layer from an inner part of the layer.

Abstract: Disclosed is toner in which is used in an image formation process comprising the steps of transferring an image of toner formed on a photoreceptor onto a recording sheet, and removing any residual toner remaining on any of the photoreceptor, an intermediate transfer member and a secondary transfer member with a cleaning blade, the toner containing at least toner particles (A) and small particles (B), wherein the toner particles (A) have an average circularity of from 0.93 to 0.99 and a number-based median diameter (D50) of from 3.0 to 8.0 ?m, the small particles (B) have an average circularity of from 0.70 to 0.92 and a number-based median diameter (D50) of from 0.15 to 0.60 times that of the toner particles (A), and the surface energy of the toner particles (A) is different from that of the small particles (B).

Abstract: An image forming method is disclosed, which includes steps of cleaning toner remaining on a photoreceptor surface by a cleaning blade which is arranged on counter direction to rotation direction of the photoreceptor, supplying a fatty acid metal salt onto the photoreceptor surface after the cleaning, spreading the supplied fatty acid metal salt on the photoreceptor surface by using a spreading blade which is arranged on trail direction to rotation direction of the photoreceptor, charging the photoreceptor by a charging member, exposing the photoreceptor to form a latent image, developing the latent image by a developer to form a toner image on the photoreceptor, and transferring the toner image onto an image receiving member by a transfer roller facing to the photoreceptor through the image receiving material, in which the toner comprises a binder resin and a colorant, in which the toner has a glass transition point of from 20 to 45° C.

Abstract: A toner comprising a compound represented by the following formula: R1O(R2O)nH where R1 is an aliphatic hydrocarbon group having 10 to 22 carbon atoms or a distyrene-substituted phenyl group; R2 is an alkylene group having 2 to 6 carbon atoms; and n is an integer of 1 to 15.

Abstract: An objective is to provide a highly durable carrier for a developer which is capable of forming a high-definition image stably with no deterioration of a developing property since the carrier resistance and the charging ability remain stable even though the developer is used for a long duration; a method of manufacturing the carrier; and an image forming method employing the same. Disclosed is an electrophotographic carrier comprising a carrier core material and provided thereon, a resin-coated layer comprising charge control particles and low-resistive particles, wherein an initial carrier resistance is 5×108-3×1010 ?cm; a concentration of the low-resistive particles grows higher toward a surface of the layer from an inner part of the layer; and a concentration of the charge control particles grows lower toward a surface of the layer from an inner part of the layer.

Abstract: A toner for developing a static latent image is disclosed. The toner has a number based particle diameter distribution curve in which peak or maximum value is within the range of from 1.0 to 2.0 ?m, and ratio of particles having particle diameter of from 1.0 to 2.0 ?m is from 0.1 to 5.0% and ratio of particle having a diameter of at least 6.35 ?m is 5.0%.

Abstract: A toner comprising a compound represented by the following formula: R1O(R2O)nH where R1 is an aliphatic hydrocarbon group having 10 to 22 carbon atoms or a distyrene-substituted phenyl group; R2 is an alkylene group having 2 to 6 carbon atoms; and n is an integer of 1 to 15.

Abstract: A toner for developing a static image is disclosed. The toner has carboxyl group in an amount of from 0.1×10?5 to 2.0×10?5 moles/g in a condition that the toner particle is dispersed in water, and an amount of a metal element contained in the toner is from 10 to 5,000 ppm by weight based on the toner.

Abstract: An electrophotographic image forming method is disclosed. In the method each of a plurality of toner images formed on the latent image bearing body is sequentially onto an intermediate transfer body, and the transferred image on the intermediate transfer body is transferred to an image forming support, and fixed using a heating roller fixing system, and the toner satisfies ratio (Dv50/Dp50) is from 1.00 to 1.15; ratio (Dv75/Dp75) is from 1.00 to 1.20; and the content ratio of toner having a particle diameter of at most 0.7×(Dp50) is less than or equal to 10 percent by number. Dv50, Dp50, Dv75 and Dp75 are specified in the specification.

Abstract: A toner for developing a static image is disclosed. The toner has carboxyl group in an amount of from 0.1×10−5 to 2.0×10−5 moles/g in a condition that the toner particle is dispersed in water, and an amount of a metal element contained in the toner is from 10 to 5,000 ppm by weight based on the toner.

Abstract: An image forming method, comprising steps of: forming a latent image on a photoreceptor having an electrically conductive support having thereon a charge generating layer and a charge transporting layer; developing the latent image with a developer containing a toner to form a toner image on the photoreceptor; and transferring the toner image onto an image receiving member, wherein the ratio of 50% volume particle diameter to 50% number particle diameter of the toner is within the range of 1.0 to 1.15, the ratio of the cumulative 75% volume particle diameter from the largest particle diameter to the cumulative 75% number particle diameter from the largest particle diameter of the toner is 1.0 to 1.20 and the number of toner particles having a particle diameter of not larger than 0.7×Dp50 is at most 10% of the number of all the toner particles in the toner.

Abstract: A toner for developing a static latent image is disclosed. The toner has a number based particle diameter distribution curve in which peak or maximum value is within the range of from 1.0 to 2.0 &mgr;m, and ratio of particles having particle diameter of from 1.0 to 2.0 &mgr;m is from 0.1 to 5.0% and ratio of particle having a diameter of at least 6.35 &mgr;m is 5.0%.

Abstract: An electrophotographic image forming method is disclosed. In the method each of a plurality of toner images formed on the latent image bearing body is sequentially onto an intermediate transfer body, and the transferred image on the intermediate transfer body is transferred to an image forming support, and fixed using a heating roller fixing system, and the toner satisfies ratio (Dv50/Dp50) is from 1.00 to 1.15; ratio (Dv75/Dp75) is from 1.00 to 1.20; and the content ratio of toner having a particle diameter of at most 0.7×(Dp50) is less than or equal to 10 percent by number. Dv50, Dp50, Dv75 and Dp75 are specified in the specification.

Abstract: An image forming method, comprising steps of: forming a latent image on a photoreceptor having an electrically conductive support having thereon a charge generating layer and a charge transporting layer; developing the latent image with a developer containing a toner to form a toner image on the photoreceptor; and transferring the toner image onto an image receiving member,

Abstract: A toner for developing electrostatic latent image is disclosed. The toner comprise of particles having a volume average particle diameter of from 3 to 8 &mgr;m, and said resin is obtained by either emulsion polymerization, mini-emulsion polymerization employing or suspension polymerization employing thioglycerin or at least one compound selected from compounds represented by the Formula (1) as the chain transfer agent. HS—R1—COOR2  (1) In the formula, R1 is an aliphatic group having carbon atoms from 1 to 10, which may have a substituent, and R2 is an aliphatic group having carbon atoms from 1 to 15, which may have a substituent.

Abstract: A toner for developing electrostatic latent image is disclosed. The toner comprise of particles having a volume average particle diameter of from 3 to 8 &mgr;m, and said resin is obtained by either emulsion polymerization, mini-emulsion polymerization employing or suspension polymerization employing thioglycerin or at least one compound selected from compounds represented by the Formula (1) as the chain transfer agent.

Abstract: A silicone resin-coated carrier for a developer of an electrostatic latent image is disclosed. The surface index S of the carrier is between 10.0 and 70.0.S=(S.sub.BET /X)/ScS.sub.BET : BET specific surface area (m.sup.2 /g)X: C value (carbon content in respect to the total carrier, weight percent)Sc: surface area (m.sup.2 /g) when assumed to be a true sphereA developer containing the carrier and a developing method employing the carrier are also disclosed.

Abstract: An electrophotographic toner is disclosed. The toner comprises a binder resin, a colorant and a mold releasing material, and the binder resin contains 8-32% by weight of 20,000-300,000 molecular weight component (MP), 12-28% by weight of high molecular weight component exceeding 300,000 (HP); that said HP content and MP content satisfy the following equation;45 (%).ltoreq.MP Ratio+HP Ratio.times.2.ltoreq.65 (%)and the glass transition point of the binder resin is 52.degree.-62.degree. C. A method of fixing toner images using a heat roller is also disclosed.

Abstract: Disclosed is a toner, composed of at least a resin, a colorant and a releasing agent, wherein a low molecular weight polyolefine polymer synthesized by using a metallocene catalyst is employed as aforesaid releasing agent.