US 6,307,960 B1 · Color image reading apparatus and color image reading method

Abstract

A color image forming apparatus includes a scanner, an image processor, and an print engine. The color image forming apparatus further includes an operation panel through which an operator can selectively set two different mode, i.e., speed mode and quality mode. In the speed mode, the scanner is set in a first scanning speed and the image processor executes a color masking process by using a first conversion matrix dedicated for the speed mode. On the other hand, in the quality mode, the scanner is set in a second scanning speed which is lower than the first scanning speed and the image processor executes a color masking process by using a second conversion matrix dedicated for the quality mode. By selectively using the first and second conversion matrices in response to the scanning speed, an appropriate color masking can be executed regardless change in the scanning speed.

Claims14

Dependent claims

A color image reading device comprising:

a scanner which scans an image to read the image and which outputs color image signals, said scanner being able to scan the image with at least two scanning speeds;
a color masking unit which converts the color image signals output from said scanner into print data corresponding to the print colors using conversion parameters;
and
a selector which alternates the conversion parameters used by the color masking unit in response to the scanning speed of the scanner.

1 more element

Dependencies are inferred from the claim text.

Color image reading apparatus and color image reading method

Life of this patent

Color image reading apparatus and color image reading method

Life of this patent

Abstract

Claims14