| http://www.w3.org/ns/prov#value | - Although the ink is considered as a liquid in the examples of the present invention as described above, other ink is also sufficiently used if it stiffens below the room temperature and softens or liquefies at the room temperature, or liquefies when a recording enable signal is issued as it is commonly practiced in the ink jet system to control the viscosity of ink to be maintained within a certai
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