Status display of image forming apparatus using power input through wired interface

A method of displaying a status of an image forming apparatus, the method comprising:

• based on a turn-on instruction being input, inputting an operation instruction into a power unit for providing driving power to a main board on which a processor is mounted;
• detecting an operation status of the power unit;
• based on the power unit being detected to be in a non-operating status, booting by the processor by using power provided from an external apparatus connected with the image forming apparatus via wire;
• and
• based on the booting being completed, displaying a status of the power unit.

A non-transitory recording medium storing program codes to execute a method of displaying a status of an image forming apparatus, the non-transitory recording medium comprising:

• a program code to, based on a turn-on instruction being input, input an operation instruction into a power unit to provide driving power to a main board on which a processor is mounted;
• a program code to detect an operation status of the power unit;
• a program code to, based on the power unit being detected to be in a non-operating status, boot by the processor by using power provided from an external apparatus connected with the image forming apparatus via wire;
• and
• a program code to, based on the booting being completed, display a status of the power unit.