Patent ID: 6836344
Filing Date: 2004-12-28
Classification: H04N

Abstract:
An image recording apparatus comprising:at least one recording head, in which a plurality of solid-state recording elements are arranged, for performing image recording by causing each of the plurality of solid-state recording elements to record a pixel; storage means for storing correction data for correcting image data in accordance with a recording characteristic of each of the plurality of solid-state recording elements so as to correspond to the corresponding one of the plurality of solid-state recording elements, each of the plurality of solid-state recording elements being driven in accordance with input image data and the correction data stored in said storage means; pattern-data generation means for generating predetermined pattern data, and for causing each of a predetermined number of consecutive solid-state recording elements from among the plurality of solid-state recording elements to record a pixel based on the predetermined pattern data; reading means for reading a test pattern recorded by said recording head based on the predetermined pattern data generated by said pattern-data generation means; acquisition means for acquiring the recording characteristic of each of the plurality of solid-state recording elements based on a ratio of a number of solid-state recording elements which have recorded pixels in accordance with the predetermined pattern data to a number of pixels of the test pattern read by said reading means; and changing means for changing the correction data for each of the solid-state recording elements in accordance with the recording characteristic of the corresponding one of the solid-state recording elements acquired by said acquisition means.