Patent ID: 7379152
Filing Date: 2008-05-27
Classification: G03B,G03F

Abstract:
1. An exposure method in which an image is formed on a recording medium mounted on a recording stage by irradiating light beams based on image data from plural recording heads arranged linearly while the recording heads and the recording stage are relatively moved in a direction intersecting a direction in which the recording heads are arranged, to allow the image to be formed by exposure on the recording medium, the method comprising: storing in advance, in a storage section, shift-amount data of a detected displacement of an image-form position with respect to a stage surface of the recording stage in a direction intersecting a direction in which the recording stage moves, which displacement occurs accompanied by movement of the recording stage; dividing an image formed by the image data into separate images which are respectively formed by the plurality of recording heads; carrying out shifting for each of pixels of the separate images based on the shift-amount data stored in the storage section; carrying out trimming the shifted separate images at positions at which the shifted separate images are connected; and controlling exposure for the recording medium by the recording heads based on respective image data of the separate images subjected to the trimming.