Image forming apparatus

An image forming apparatus, comprising:

• a recording head configured to eject ink corresponding to an image to be printed, using arranged nozzles;
• a control unit configured to determine nozzles corresponding to the image to be printed, correspondingly to a position of a print sheet, and cause the recording head to eject ink from the nozzles;
• and
• a correction processing unit configured to perform a correction process corresponding to each of plural ink ejection malfunction positions in the image;
• wherein the correction processing unit (a) prints a test pattern using the recording head, (b) determines the ink ejection malfunction positions on the basis of a scanned image of the test pattern, (c) sets one of first and second correction modes for each of the ink ejection malfunction positions in accordance with a density of the ink ejection malfunction position on the basis of the scanned image of the test pattern, and (d) performs the correction process for the ink ejection malfunction position in the set first or second correction mode;
• in the first correction mode, the correction process is performed for a nozzle corresponding to the ink ejection malfunction position and an adjacent nozzle of the nozzle corresponding to the ink ejection malfunction position;
• and
• in the second correction mode, the correction process is not performed for a nozzle corresponding to the ink ejection malfunction position but the correction process is performed for an adjacent nozzle of the nozzle corresponding to the ink ejection malfunction position.