Patent ID: 7719723

Claim:
An exposed image input device for reading an image data saved in an image memory and inputting the read image data to an exposing device, comprising: a correction data memory for storing a correction data specifying a deviation amount of the image data in a sub-scanning direction for each position along a main scanning direction; a first reading section for inputting an image data of one page to the exposing device while reading the image data pixel by pixel in a specified order from the image memory by referring to the correction data; a second reading section for inputting an image data of one page to the exposing device while reading the image data pixel by pixel in an order opposite to the specified order from the image memory by referring to the correction data; and a switching section for alternately switching the first and second reading sections to operate and alternately causing the first and second reading sections to read the image data of one page every time the image data of one page saved in the image memory is read, the specified order being an order in which the image data is read along the main scanning direction while shifting the positions of pixels to be read in the sub-scanning direction pixel by pixel by the deviation amounts specified by the correction data and the readout along the main scanning direction is repeated while successively moving the readout positions in the sub-scanning direction.