| http://www.w3.org/ns/prov#value | - BACKGROUND OF THE INVENTION [0002] Conventionally, it has been well known that in an image forming apparatus such as a printer, copier and the like, a toner container for storing toner such as a toner bottle, a toner cartridge and the like is set up on the main body of the same apparatus and toner is supplied from the container to a developing portion.
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