Image printing apparatus and control method therefor

A method of controlling an image printing apparatus which prints an image by scanning on a printing medium in a main scanning direction a carriage holding a printing head having a plurality of nozzles, comprising:

• a detection step of detecting that image printing is interrupted during image printing by one scanning;
• and
• a control step of, when interruption is detected, controlling to extract part of image data printed before the interruption, print the remaining image data, and print the extracted part of the image data after the interruption.

A control program of controlling an image printing apparatus which prints an image by scanning on a printing medium in a main scanning direction a carriage holding a printing head having a plurality of nozzles, comprising:

• a program code for a detection step of detecting that image printing is interrupted during image printing by one scanning;
• and
• a program code for a control step of, when interruption is detected, controlling to extract part of image data printed before the interruption, print the remaining image data, and print the extracted part of the image data after the interruption.

A computer-readable storage medium which stores a control program of controlling an image printing apparatus which prints an image by scanning on a printing medium in a main scanning direction a carriage holding a printing head having a plurality of nozzles, the control program comprising:

• a program code for a detection step of detecting that image printing is interrupted during image printing by one scanning;
• and
• a program code for a control step of, when interruption is detected, controlling to extract part of image data printed before the interruption, print the remaining image data, and print the extracted part of the image data after the interruption.