Fax is a common means of office automation and a powerful communication assistant at home. Most of the fax machines currently in use are black and white faxes. The images they transmit only have the difference in black and white color, and there is no color information. With the development of science and technology, color fax, which can transmit both image brightness information and image chromaticity information, will leap into the communication arena.

(Editor in charge：lifestyles)