You can adjust the image quality and colors using the printer driver or Color Centro when printing. When you want to adjust the brightness, contrast, hue, etc., adjust tone curves. When you want to print special colors (spot colors) such as DIC, CF, HKS, and PANTONE in CMYK colors, use a spot color table to make adjustments. To convert specific RGB colors / CMYK colors to alternative colors, adjust an alternative color table.