Patent ID: 7367639

Claim:
A method of transferring image data, comprising: transferring image data stored in an image buffer to a memory; transferring image data for each color stored in the memory to a liquid ejecting head; detecting a recording medium to be ejected a liquid droplet thereon by the liquid ejecting head; designating a size of the image data transferred from the image buffer to the memory so as to correspond to a liquid ejection area on the recording medium in a nozzle arrangement direction of the liquid ejecting head on the basis of a result of the detection; masking a data storage area in the memory corresponding to a non-liquid ejection area out of the liquid ejection area with null data; transferring the null data to the liquid ejecting head before start of the transfer of the image data from the memory to the liquid ejecting head on the basis of the head gaps; and transferring the null data to the liquid ejecting head after end of transfer of the image data from the memory to the liquid ejecting head on the basis of the head gaps, wherein the image data stored in the memory is transferred to the liquid ejecting head on the basis of head gaps defined among respective color nozzle rows of the liquid ejecting head.