Akwụkwọ carbon enweghị akwụkwọ na-enweghị carbon ọdịnaya, nke enwere ike ibipụta ma jupụta na-enweghị iji ink ma ọ bụ toner. Akwụkwọ carbon-Free nke ọma, akụ na ụba ma rụọ ọrụ nke ọma, ma na-ejikwa azụmahịa, agụmakwụkwọ sayensị, nlekọta, nlekọta ahụike na ubi ndị ọzọ.