Patent ID: 6356292
Filing Date: 2002-03-12
Classification: H04N

Abstract:
A density correction method for a recording apparatus which performs recording by applying energy corresponding to input data from a recording head to a recording medium, said density correction method comprising steps of:recording an image on said recording medium at a predetermined halftone density; measuring record density of a result of recording of the halftone density; changing the setting value of a relative speed between said recording head and said recording medium by means of raising the relative speed when the measured record density is higher than the required density and lowering the relative speed when the measured record density is lower than the required density; recording an image on said recording medium at least two halftone densities after changing the setting value of the relative speed; and updating a density conversion table for converting input data in such a manner that the record density of a result of recording substantially coincides with the predetermined density.