Image forming apparatus, color registration method of image forming apparatus, host apparatus, control method of host apparatus, and computer readable recording medium

A color registration method of an image forming apparatus, comprising:

• printing a preset test pattern for color registration;
• displaying a screen to receive location error values of respective colors that are calculated using the printed test pattern for color registration;
• and
• if the location error values are inputted to the displayed screen, performing the color registration using the inputted location error values, wherein
• the location error values are calculated using a scan image that is generated by scanning at an image reading device the printed test pattern for color registration of the image forming apparatus.

A control method of a host device, comprising:

• receiving from an image reading device a scan image that is generated as a result of scanning a test pattern for color registration printed at an image forming apparatus;
• detecting the printed test pattern for color registration from the scan image;
• and
• calculating location error values of respective colors using the detected test pattern for color registration.

An image forming apparatus, comprising:

• an image forming unit that prints a preset test pattern for color registration;
• a scanner that scans the printed test pattern for color registration;
• and
• a controller that detects the printed test pattern for color registration from a scan image according to the scanning, calculates location error values of respective colors using the detected test pattern for color registration, and controls the image forming apparatus to perform color registration using the calculated location error values of respective colors.

An image forming apparatus, comprising:

• an input that receives a user input with respect to the image forming apparatus;
• an image forming unit that prints a preset test pattern for color registration;
• a display that displays a screen to receive location error values of respective colors' that are calculated using the printed test pattern for color registration;
• and
• a controller that controls the image forming apparatus to perform color registration using the location error values, if the location error values are inputted to the displayed screen, wherein
• the location error values are calculated using a scan image that is generated by scanning at an image reading device the printed test pattern for color registration of the image forming apparatus.

A host device, comprising:

• a display that displays a screen;
• a communicator that receives from an image reading device a scan image generated as a result of scanning a printed test pattern for color registration of an image forming apparatus;
• and
• a controller that detects the printed test pattern for color registration from the scan image, calculates location error values of respective colors using the detected test pattern for color registration, and controls the display to display the calculated location error values of respective colors on the screen.

A non-transitory computer readable recording medium recording therein a program code to implement a color registration method of an image forming apparatus, wherein the color registration method comprises:

• printing a preset test pattern for color registration;
• scanning the printed test pattern for color registration;
• detecting the printed test pattern for color registration from a scan image obtained as a result of the scanning;
• calculating location error values of respective colors, using the detected test pattern for color registration;
• and
• performing the color registration using the calculated location error values of respective colors.