Abstract: An image forming method, comprising: forming an electrostatic latent image on a rotatable organic photoreceptor; forming a developing brush with a developing agent containing a toner on a rotatable developing sleeve; and bringing the developing brush in contact with the photoreceptor at a developing region so as to visualize the electrostatic latent image into a toner image. The photoreceptor comprises a conductive support member, an intermediate layer containing a binder resin and inorganic particles which have a number average primary order particle size of 3 to 200 nm, and a photosensitive layer provided on the intermediate layer, and the rotating direction of the developing sleeve is counter to that of the photoreceptor at the developing region.

Abstract: A toner image is formed while a developing sleeve is rotated in a direction counter to that of an organic photoreceptor at the developing section and a developing agent contains toner which contains toner particles having a particle diameter of 0.7×(Dp50) or less in an amount of 8 number % or less and has water content of 0.1 to 2.0 mass % under an environment of 30° C. and 80% RH, where Dp50 represents 50% number % particle diameter of toner particles.

Abstract: An image forming method characterized in that a plurality of toner images which differ in color is formed as superposed; a plurality of the superposed toner images is simultaneously transferred onto a sheet of recording paper; the turbidity of toners of each color which form a plurality of the toner images is less than 60; and the maximum turbidity difference among said toners of each color is 5-45.

Abstract: Disclosed is an image forming method employing an apparatus comprising a plurality of toner image forming units, which forms a plurality of toner images and transfer them onto an intermediate transferring member in sequence, and the transferred images is transferred onto a recording sheet. The developer is a non-magnetic single component toner and turbidity of toners of each color is less than 60; and the maximum turbidity difference among the toners is 5-45.

Abstract: An image forming method is disclosed, the method includes forming a latent image by irradiating an organic photoreceptor by a semiconductor laser or a light emission diode emitting light of a wavelength of from 350 to 500 nm, and developing the latent image by a developer containing a toner to form a toner image, the organic photoreceptor having a surface layer comprising a binder and fluororesin fine particles having an average primary particle diameter of not less than 0.02 ?m and less than 0.20 ?m.

Abstract: An image forming method comprising: developing a latent image formed on a cylindrical electrophotographic photoreceptor having a cylindricity of 5 to 40 ?m, with a developer comprising toner in which a ratio Dv50/Dp50 of a 50% volume particle diameter Dv50 to a 50% number particle diameter Dp50 is 1.0 to 1.15, a ratio Dv75/Dp75 of a cumulative 75% volume particle diameter from the largest volume particle diameter Dv75, to a cumulative 75% number particle diameter from the largest number particle diameter Dp75, is 1.0 to 1.20, and the number of toner particles having a particle diameter of 0.7×Dp50 or less is 10 percent by number or less, to form a toner image; and transferring the toner image from the photoreceptor to an intermediate transferring member, is disclosed.

Abstract: A method of forming a toner image employing a photoreceptor is described. The photoreceptor comprises a photosensitive layer on a cylindrical conductive substrate, Formula (1) and Formula (2) are held, 0<Pmax<2P??Formula (1) 2?(Pmax/D)×100?50??Formula (2) wherein P (?m) is the average of the coating layer thickness in central section in the width direction of the photoreceptor, Pmax (?m) is average of the maximum value of the layer thickness out of the image forming region, and D (?m) is average of distance between point, at which said maximum value is obtained, and edge of the coating layer, and the toner contains 1.0 to 7.0 number % of toner particles having number based particle diameter not more than 3.17 ?m based on whole number of toner particles, and number average toner particle diameter is 4-9 ?m.

Abstract: Disclosed is an electrophotographic photoreceptor which comprises a layer on a support, wherein the photoreceptor satisfies a condition represented by Formulas 1 and 2; 0<Pmax<2P??Formula 1 2?(Pmax/D)×100?50??Formula 2 wherein P represents an average of the layer thickness in ?m at the central portion in the width direction of image forming area of the support, Pmax represents is an average of the largest value of the layer thickness in ?m without the image forming area, D represents an average of the distance in ?m from the point where the largest value is formed to the edge of the layer and a image forming method and an apparatus using the same.

Abstract: A photoconductor for electrophotography, includes a conductive substrate; a photosensitive layer containing charge generation material formed on the conductive substrate. The charge generation material contains a substituted or unsubstituted gallium phthalocyanine dimer (GaPhC dimmer) and a substituted or unsubstituted hydroxy gallium phthalocyanine (GaPhC monomer) and has distinctive diffraction peaks at the Bragg angles (2?±0.2) of 7.5° and 28.3° in a Cu-K? characteristic X-ray diffraction spectrum.

Abstract: A toner image is formed while a developing sleeve is rotated in a direction counter to that of an organic photoreceptor at the developing section and a surface layer of the organic photoreceptor contains metal oxide particles which have a number average primary particle diameter of 3 to 150 nm and are chosen from metal of the 3rd or 4th cycle of a periodic table.

Abstract: An image forming method, comprising the steps of: charging uniformly a surface of an organic photoreceptor while rotating the organic photoreceptor; exposing the charged surface of the photoreceptor with a light beam having a wavelength in the range of 350 nm to 500 nm in a main scanning direction to form a dot-shaped electrostatic latent image on the photoreceptor; and developing the dot-shaped electrostatic latent image with toner to form a dot-shaped toner image on the photoreceptor so as to satisfy the following formulas: 1.1?B/A?1.5 and 10?A?50, where A is the length (?m) of an exposed dot of the dot-shaped electrostatic latent image in the main scanning direction, and B is the length (?m) of a toner dot of the dot-shaped toner image in the main scanning direction.

Abstract: An electrophotographic image forming method is disclosed. The method contains steps of forming an electrostatic latent image on an organic photoreceptor, and developing the electrostatic latent image by a developer containing toner to form a toner image on the photoreceptor. In this method the photoreceptor contains inorganic particles in a surface layer, the toner has circle equivalent diameter d of 3.0 to 8.0 ?m viewed from a direction which maximizes the projective area of toner particles, the toner has a flatness ratio d/t of 2.0 to 5.0, wherein d is circle equivalent diameter and t is average thickness of toner particles, and the electrostatic latent image is developed in such a manner that the developing sleeve is rotated in the opposite direction to the photoreceptor.

Abstract: An electrophotographic photoreceptor includes a surface layer having a contact angle of 90 to 130° on a cylindrical conductive substrate having a cylindricity of 5 to 40 ?m.

Abstract: Disclosed is an organic photoreceptor possessing a photosensitive layer having a surface layer, provided on a conductive support, wherein the surface layer of the organic photoreceptor contains a block copolymer composed of a matrix component and a low surface energy component, and possesses a sea/island structure having domains formed by aggregating the low surface energy component in the block copolymer, and also disclosed are a process cartridge, an image forming method and an image forming apparatus, employing the foregoing organic photoreceptor.

Abstract: An image forming apparatus for enabling an image forming which is stable for a long time, by using a charging method in which the amount of generated ozone or nitrogen oxides is reduced and consumed electric power is low. An image forming method includes: a charging section for charging a photoreceptor by contacting on the photoreceptor; an exposure section for forming a static latent image on the photoreceptor by an exposure; a developing section for developing a toner image on the static latent image by a toner having a toner particle which uses a binder resin and a colorant as a component, in which a total quantity of a volatile material measured by a headspace method is 350 ppm or less; and a transfer section for transferring the toner image on a transfer material.

Abstract: An electrophotographic photoreceptor comprising a support, an interlayer containing inorganic particle and a photosensitive layer is disclosed. The photosensitive layer contains a mixture of compounds represented by Formula (1) having different n and (Rp+Rs) is not more than 99%, wherein Rp is a ratio of a component having the maximum content in the mixture and Rs is a ratio of a component having the content next to the maximum content in percent. X—(CTM-group)n—Y ??(1) In the formula, CTM-group is a charge transfer group; X and Y are each a hydrogen atom, a halogen atom or a mono-valent organic group; and n is an integer of from 0 to 10, provided that n is an integer of from 1 to 10 when both X and Y are hydrogen atom or a halogen atom. A processing cartridge comprising the electrophotographic photoreceptor is also disclosed.

Abstract: A method of forming a toner image employing a photoreceptor is described. The photoreceptor comprises a photosensitive layer on a cylindrical conductive substrate, Formula (1) and Formula (2) are held, 0<Pmax<2P??Formula (1) 2?(Pmax/D)×100?50??Formula (2) wherein P (?m) is the average of the coating layer thickness in central section in the width direction of the photoreceptor, Pmax (?m) is average of the image forming region, and D (?m) is average of distance between point, at which said maximum value is obtained, and edge of the coating layer.

Abstract: An electrophotographic photoreceptor having an intermediate layer in which the intermediate layer contains a compound formed from a composition containing the following components X, Y and Z.

Abstract: An image forming apparatus, comprising: an electrophotographic photoreceptor and an intermediate transfer member, wherein the photoreceptor and the intermediate transfer member have a condition represented by Formula 1: Wa<Wb where Wa represents a water content (wt %) on the surface of the photoreceptor and Wb represents a water content (wt %) on the surface of the intermediate transfer member.

Abstract: An image forming method which can provides excellent cleaning property, no occurrence of unusual noise or curling of a blade, and a high quality image. The method includes forming a latent image on a cylindrical electrophotographic photoconductor including a mass additive therein; and developing the latent image with a developer comprising a toner, wherein the toner comprises a ratio (Dv50/Dp50) of a 50% volume particle size (Dv50) to a 50% number particle size (Dp50) of 1.0 to 1.15, a ratio (Dv75/Dp75) of a cumulative 75% volume particle size (Dv75) from a larger volume particle size to a cumulative 75% number particle size (Dp75) from a larger number particle size of 1.0 to 1.20, and the number of toner particles having a particle size of 0.7×(Dp50) or less in an amount of not greater than 10 number %.