| http://www.w3.org/ns/prov#value | - image object of each page is a color other than a specific color or not, and a switching step [steps (13) and (14) in FIG. 13] of switching a resolution mode to draw every page on the basis of the discrimination results of the first and second discriminating steps are executed on the basis of a control program stored in a memory resource of a host computer 100, and in case of a page in which an i
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