IMAGE FORMING APPARATUS

摘要

An image forming apparatus that forms a color image by layering toner images of different colors includes: a photoreceptor on which an electrostatic latent image is formed through charging and exposure; an exposure unit performing exposure-scanning on the photoreceptor in accordance with image signal; an intensity determination unit determining exposure intensity according to image forming condition; and a timing determination unit determining a timing of inputting image signal for each scanning line, wherein the exposure unit has a delay duration differing depending on the exposure intensity and being from input of image signal of each pixel to be exposed to exposure of the pixel at the exposure intensity, and the timing determination unit obtains the delay duration corresponding to the exposure intensity, and determines the timing such that image signal of an initial pixel to be initially exposed is input the delay duration before the initial pixel is exposed.

主权项

1. An image forming apparatus that forms a color image by layering toner images of different colors, the image forming apparatus comprising:
a photoreceptor on which an electrostatic latent image is formed through charging and exposure; an exposure unit that performs exposure-scanning on a surface of the photoreceptor in accordance with an image signal input thereto; an intensity determination unit that determines exposure intensity of the exposure unit according to an image forming condition; and a timing determination unit that determines an input timing at which an image signal is to be input to the exposure unit for each scanning line, wherein the exposure unit has a delay duration that differs depending on the exposure intensity, the delay duration being a duration from input of an image signal of each pixel to be exposed in each scanning line on the surface of the photoreceptor to start of exposure of the pixel at the determined exposure intensity, and the timing determination unit obtains the delay duration corresponding to the determined exposure intensity, and determines the input timing such that an image signal of an initial pixel to be initially exposed in each scanning line on the surface of the photoreceptor is input the delay duration before exposure of the initial pixel is started.