Image forming apparatus and method of controlling output thereof

A method of controlling an output of an image processing apparatus, the method comprising:

• determining whether to scan a document;
• receiving a selection to set an option for the document;
• displaying a sample image preview corresponding to a sample image on a display unit by using the sample image having the set option if the document is not scanned yet;
• generating a real image by applying the set option to a document image generated by scanning the document;
• and
• displaying on the display unit a real image preview corresponding to the real image if the document is scanned.

An image forming apparatus comprising:

• a scan unit which generates a document image by scanning a document;
• an interface which is connected to an external device;
• an operation panel unit which receives an input to set an option for generating the document image;
• a storage unit which stores therein a sample image corresponding to the set option and the document image;
• an image processor which processes the document image according to the set option which is input through the operation panel unit to generate a real image;
• a display unit which displays thereon a preview using the sample image and the real image;
• and
• a controller which controls the display unit to selectively display the preview depending on whether the document is scanned.

A method of controlling an output of an image forming apparatus, the method comprising:

• loading a document through a scan unit;
• displaying on a display unit a sample image preview corresponding to a sample image by using a prestored sample image;
• generating a document image by scanning the document;
• generating a real image based on the document image;
• and
• displaying on the display unit a real image preview corresponding to the real image.

A method of controlling an output of an image forming apparatus, the method comprising:

• loading a document through a scan unit;
• generating a document image by scanning the document;
• generating a real image based on the document image;
• displaying on a display unit a real image preview corresponding to the real image;
• and
• outputting the real image.

An image forming apparatus, comprising:

• a scan unit to scan a document to generate a real image;
• an operation control unit to set at least one option and to generate a sample image interface including a sample image preview according to the set at least one option and a sample image and to generate a real image interface including a real image preview according to the set at least one option and the real image;
• and
• an output unit to output the real image according to the real image preview and the set at least one option.