Of the combinations to which the present invention is applicable, the most preferable is a case where the ink of this embodiment is a black ink, because the effect of this embodiment such as increase in OD value and suppression of “haze” can most effectively contribute to {HEAD ~ the quality} of {TAIL ~ printed characters} 
of
Of the combinations to which the present invention is applicable , the most preferable is a case where the ink of this embodiment is a black ink , because the effect of this embodiment such as increase in OD value and suppression of “ haze ” can most effectively contribute to { HEAD ~ the quality } of { TAIL ~ printed characters }
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