The digital printer head must be extremely precise, and dyes have to be reformulated to prevent impurities (such as unreacted raw materials or isomeric reaction products) from damaging or clogging the head. The process also demands a new control over the pH of the dyes.
由於是數位噴印，電子噴頭必須非常精細靈敏，染料也必須重新配方、提高純度以免雜質（指反應未完全的原料、或反應後多出的異構物等）損傷或阻塞噴頭；酸鹼的控制也截然不同。