Image forming apparatus and storage medium

A non-transitory computer readable storage medium storing a program used for an electronic device configured to control an image forming apparatus,

• the image forming apparatus including:
• a memory;
• a recording head configured to record an image on a recording medium based on image data stored in the memory;
• a conveyor unit configured to convey the recording medium in a conveying direction;
• a carriage having the recording head mounted thereto and capable of reciprocally moving in a scanning direction perpendicular to the conveying direction;
• and
• a controller configured to:
• execute a conveying processing in which the recording medium is conveyed in the conveying direction by the conveyor unit, and
• execute a scanning processing in which the image is recorded on the recording medium by the recording head with moving the carriage in the scanning direction when the conveying processing is not executed,
• the program, when executed by a processor of the electronic device, causes the electronic device to:
• store image data in the memory;
• decide a conveying distance for the conveying processing based on the image data stored in the memory;
• determine whether an image including a code image having a plurality of printing regions and a plurality of non-printing regions is to be formed on the recording medium based on the image data stored in the memory;
• determine, in a case where it is determined that the image including the code image is to be formed on the recording medium, whether the code image is to be formed by a plurality of the scanning processing including a first scanning processing and a second scanning processing if the conveying processing is executed over the decided conveying distance;
• and
• shorten, in a case where it is determined that the code image is to be formed by the plurality of scanning processing, the decided conveying distance for:
• (i) one conveying processing which is executed immediately before the first scanning processing;
• or (ii) at least one of a plurality of conveying processing which are respectively executed immediately before each of a plurality of scanning processing which includes the first scanning processing and at least one scanning processing executed before the first scanning processing, so that the code image is not to be formed in the first scanning processing and the code image is started to be formed from the second scanning processing, and
• wherein a length of the code image in the conveying direction, which is formed in the first scanning processing when the decided conveying distance is not shortened, is shorter than a length of the code image in the conveying direction, which is formed in the second scanning processing when the decided conveying distance is shortened.