Abstract: A resin composition includes (A) a polylactic acid and (B) polyarylate particles having a number average particle diameter of from 10 nm to 300 ?m.

Abstract: A resin composition includes (A) a polylactic acid and (B) polyarylate particles having a number average particle diameter of from 10 nm to 300 ?m.

Abstract: In a color image forming apparatus, charging, exposure and development are repeated thereby a plurality of color component toner images are formed in superposing on an image carrier and then transferred collectively to an image receptor. As a charging device used in image forming cycle of at least the second color or later, a corona charging device having a discharge electrode and a grid is used. An electrode power source applying at least AC voltage is connected to the discharge electrode, and a grid power source applying AC voltage in nearly the same phase as that of the AC voltage applied to the discharge electrode is connected to the grid, and frequency or peak-to-peak amplitude of the AC voltage from the grid power source is set to optimum range.

Abstract: In a color image forming apparatus, a screen of each of electrostatic latent images to be formed by an exposing device has a parallel lines structure, and phases of the electrostatic latent images each having the parallel lines structure for at least two different colors are made different from each other. Accordingly, the color image forming apparatus can totally solve the problem caused by the rise in potential of exposed portions by toner charges and the dielectric property of toner layers and the problem caused by the toner shielding effect to thereby allow faithful reproduction of a highlight area important for a good halftone image, especially a high-quality color image.

Abstract: A color-image forming apparatus includes: an electrostatic latent image holder; electrostatic latent image forming unit for forming a plurality of electrostatic latent images on the image holder; a scanning unit for scanning the electrostatic latent image holder periodically at predetermined timings; developing devices for developing each of the plurality of electrostatic latent images by toners of each of different colors respectively, and forming thus developed toner image on the image holder; a simultaneously transferring device for simultaneously transferring the plurality of toner images onto a transfer medium; fixing device for fixing the toner image on the transfer medium; and timing-setting unit for setting a timing at which said scanning means starts scanning at each of slow scanning pitches in the direction of fast scanning for each of the plurality of colors; wherein the timings which are allotted to each of the colors are different each other so that the starting position of the scanning of each c

Abstract: Disclosed is a color image forming device in which latent images are formed by radiating a light beam onto a photoreceptor for each of colors, the latent images are developed to provide visible images, and a recording medium is transported to the visible images a plurality of times to form on the recording medium a color image consisting of a plurality of colors. The color image forming device includes a unit for detecting a reference transporting position of the recording medium to be moved to the photoreceptor, a unit for detecting a scan start signal of the light beam, a unit for measuring an error time from detection of the reference transporting position to detection of the scan start signal, and a unit for correcting a radiation timing of the light beam in accordance with the error time.

Abstract: Disclosed is an image forming apparatus and method for forming a color toner image on a transparent overhead projector film, characterized in that the product of the height of the color toner image construction h and the spatial frequency 1/.lambda. is 0.036 or less. The height of the image construction h can be determined by varying the toner weight per unit area on the transparent film and the spatial frequency 1/.lambda. can be determined by varying the resolution so that h/.lambda. the is 0.036 or less.