| http://www.w3.org/ns/prov#value | - The network 502 is a wide-area network formed using various lines. [0071] After the aforementioned remaining amount detection, a CPU in the image forming apparatus main body 500 sends information such as the home page address of the manufacturer, retailer, service center, or the like as the selling agency of that image forming apparatus, or expendable order placement dedicated home page address, a
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