Patent ID: 8315531

Claim:
An image-processing device comprising: a selection unit that selects either a first operation mode or a second operation mode for representing a primary color by a combination of a first developer having a relatively light color of substantially the same hue as the primary color and a second developer having a relatively dark color of substantially the same hue as the primary color, wherein in the second operation mode, a larger amount of the first developer and a smaller amount of the second developer are used to represent a given intensity of the primary color than in the first operation mode; and a first conversion unit that converts a primary color signal representing the primary color into a first developer color signal representing an amount of the first developer and a second developer color signal representing an amount of the second developer, wherein when the second operation mode is selected by the selection unit, the first conversion unit converts the primary color signal such that the first developer color signal obtained by the conversion represents a larger amount of the first developer and the second developer color signal obtained by the conversion represents a smaller amount of the second developer for a given value of the primary color signal than in the first operation mode, while an area of a medium covered by the first developer and the second developer is unchanged between the first and second operation modes.