Sometimes, for example https://duckduckgo.com/?q=docucolor+"not+visible+under+normal+viewing+conditions" https://duckduckgo.com/?q=docucolor+"not+visible+under

Sometimes, for example https://duckduckgo.com/?q=docucolor+"not+visible+under+normal+viewing+conditions" https://duckduckgo.com/?q=docucolor+"not+visible+under+norma... We originally found that in German, https://duckduckgo.com/?q=docucolor+"unter+normalen+bedingungen+nicht+sichtbar" https://duckduckgo.com/?q=docucolor+"unter+normalen+bedingun... However, I don't think that most printers currently disclose this, at least for sales in the U.S.