Printer, non-transitory computer-readable medium storing control program executable on printer, and method that is executed by printer

A non-transitory computer-readable medium storing a control program executable on a printer, the printer that includes:

• a feeding portion that is configured to feed a printing medium in a sub-scanning direction that is orthogonal to a main scanning direction;
• and
• a printing portion that includes a plurality of heating elements that are arrayed in the main scanning direction and that is configured to perform printing on the printing medium fed by the feeding portion when heating pulses are applied to the plurality of heating elements each corresponding to a single dot, and
• the program comprising computer-readable instructions, when executed, to cause the printer to perform the step of applying one or more heating pulses to one of the plurality of heating elements in response to a command to print one dot, a length of each of the plurality of heating elements in the sub-scanning direction being shorter than a length of each of the plurality of heating elements in the main scanning direction.

A method that is executed by a printer, the printer that includes:

• a feeding portion that is configured to feed a printing medium in a sub-scanning direction that is orthogonal to a main scanning direction;
• and
• a printing portion that includes a plurality of heating elements that are arrayed in the main scanning direction and that is configured to perform printing on the printing medium fed by the feeding portion when heating pulses are applied to the plurality of heating elements each corresponding to a single dot, and
• the method comprising the step of applying one or more heating pulses to one of the plurality of heating elements in response to a command to print one dot, a length of each of the plurality of heating elements in the sub-scanning direction being shorter than a length of each of the plurality of heating elements in the main scanning direction.