(1) Nneɛma a ɛyɛ kurukuruwa. Sɛ wɔbɔ ade a wɔatintim no curved a, UV printa no ntumi ntintim. sɛ arc ade no tintim a, ebetumi aba sɛ print nhyehyɛe no mu nna hɔ efisɛ kwan a ɛda nozzle no ne ade no ntam no yɛ akyirikyiri dodo{3}} sɛ nozzle ne ade no kwansin a ɛbɛn dodo a, ebetumi ama nozzle no ayɛ nozzle, ne damage the nozzle{
(2)High reflective material. Sɛ yɛtintim ade a ɛyɛ den a ɛma hann, te sɛ ahwehwɛ, etc., esiane sɛ hann a ɛwɔ UV hann no so wɔ nneɛma no so a, ade no bɛda adi, sɛnea ɛbɛyɛ a hann no fã bi bɛdan akɔ nozzle no mu, sɛnea ɛbɛyɛ a ink a ɛwɔ nozzle no mu no bɛyɛ den, na ɛde nozzle no asiw{3}}
(3)Sɛ wotintim wie a, ade no hia ɔhyew a ɛkorɔn, acid a ɛyɛ den a wɔde sa yare. ink a ɛwɔ UV printa no mu no bɛma nhwɛso ayera, ayɛ mmerɛw na nsɛm afoforo aba wɔ ɔhyew a ɛkorɔn akyi, acid a ɛyɛ den a wɔde yɛ aduru.
