Patent ID: 6816634
Filing Date: 2004-11-09
Classification: H04N

Abstract:
An image recorder for recording an input image on an image recording medium along scanning lines inclined with respect to a main scanning direction, by using a continuous scanning system for performing a continuous scan in both said main scanning direction and a sub-scanning direction,said image recorder comprising: a recording head for outputting each pixel in said input image as a set of pixel units smaller than said pixel, said recording head having a higher resolution than said input image in said sub-scanning direction; a scanning section for performing a scan by continuously moving said recording head relative to said image recording medium in both said main scanning direction and said sub-scanning direction; a memory for storing image data of said input image; an access controller for, for access to said memory, setting an angle difference between a write angle and a read angle to be equal to an inclination angle of said scanning lines with respect to said main scanning direction, said write angle being an angle at which said image data is written into an address space in said memory, said read angle being an angle at which said image data is read out from said address space in said memory; and a shift controller for outputting image data read out from said address space in a position that is shifted in said sub-scanning direction by a shift amount responsive to said inclination angle, the smallest unit of said shift amount being said pixel unit.