| http://www.w3.org/ns/prov#value | - said method has a color mode in which a color image is formed by using four color toners including yellow, magenta, cyan, and black, and a monochromatic mode in which a monochromatic image is formed by using black toner, and said transfer medium is chucked onto said convey belt by said charger and said countercharge applying unit only in the monochromatic mode. 7.
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