Patent ID: 7477422

Claim:
An image recording method for performing recording to a pixel using a dot pattern corresponding to a gradation value to represent the pixel with one of plural gradation values including a predetermined gradation value, said method comprising the steps of: a selection step for selecting one dot pattern based on a position of the pixel having the predetermined gradation value, from a dot-pattern table having a plurality of different dot patterns corresponding to the predetermined gradation value; and a recording step for performing recording to the pixel having the predetermined gradation value based on the dot pattern selected in said selection step using a recording head having and array of nozzles, wherein at least two of the different dot patterns corresponding to the predetermined gradation value are associated with different pixel positions in a first direction corresponding substantially to a nozzle array direction, and at least two of the different dot patterns corresponding to the predetermined gradation value are associated with different pixel positions in a second direction orthogonal to the first direction.