Patent ID: 9676203
Date: 2017-06-13
CPC Classifications: B41J

Claim:
1. A printing apparatus which causes a print medium to move in a predetermined direction relative to a print head which includes a plurality of nozzles, and causes ink to be ejected from each of the plurality of nozzles based on print data, the printing apparatus comprising: a first processing unit which stores image data of each pixel in memory, the memory being capable of burst transfer; a second processing unit which performs an interpolation process on the image data stored by the first processing unit, the interpolation process being performed corresponding to a faulty nozzle of the print head; and a third processing unit which rotates the image data on which the interpolation process has been performed and stores the image data which corresponds to each of the plurality of nozzles in the memory such that the image data that has been rotated is in a read-out order of the memory when the print head is positioned at a certain point in relation to the print medium, the printing apparatus reading out the image data which is stored by the third processing unit and outputs the image data as the print data, the first processing unit and the third processing unit storing the image data using the burst transfer, and the second processing unit executing the interpolation process using the image data which is read out from the memory using the burst transfer, wherein the second processing unit executes the interpolation process using at least the image data of two rows which interpose a column corresponding to a position of the faulty nozzle.