Fotokopi abantu bose babonye byinshi, ohereza inyandiko zigomba kwandukurwa kurupapuro, kanda buto, urumuri rumurika, kandi inyandiko irimurwa.

1. Ukurikije imiterere yamashanyarazi ya toner, irashobora kugabanywamo: ifu nziza yamashanyarazi nifu y amashanyarazi mabi.

2, ukurikije imiterere ya magnetiki ya toner irashobora kugabanywamo: ifu ya magneti nifu ya magneti.

3, ukurikije inzira yo gukora toner igabanijwemo: ifu yumubiri nifu yimiti.

Ibice nyamukuru bigize toner (bizwi kandi nka toner) ntabwo ari karubone, ariko ibyinshi muri byo bigizwe na resin na karubone umukara, umushahara, ifu ya magneti nibindi. Mubikorwa byimikorere ya kopi, ni toner ishonga mumibabi yubushyuhe mukanya gato, kandi igashimangira byimazeyo fibre yimpapuro, muriki gihe, molekile ya ogisijeni yo mu kirere imbere muri kopi iba atome eshatu za ogisijeni kubera ionisiyoneri , ihinduka gaze ifite impumuro mbi, nicyo buri wese yita 'ozone'. Iyi gaze ifite inyungu imwe gusa, ni ukuvuga kurinda isi no kugabanya ingaruka ziterwa nimirasire yizuba. Ozone nta ngaruka nziza igira ku mubiri w'umuntu ubwayo, izatera uburakari ku mucosa w'umuntu, byoroshye kongera indwara ya asima cyangwa izuru rya allergie, ndetse no kuzunguruka, kuruka n'ibindi bintu.

Ni guhera kandi mu myaka ya za 1980, mu rwego rwo gukuraho ozone no kugabanya iterabwoba ry’umuriro, abakora fotokopi bakomeje gukoresha uburyo butandukanye kugira ngo bagerageze tonier idasaba amashanyarazi y’umuriro mwinshi n’ubushyuhe bwo hejuru, ibyo bikaba byateje byinshi kandi ubwoko bwinshi bwa toner, ndetse nibisobanuro bitandukanye biranga fotokopi irashobora gukoresha toner zitandukanye. Nukuri kuberako toner itandukanye, nuko ibirango bitandukanye bya toner akenshi bizerekana guhuza imiterere, ikirango kumasanduku. Rimwe na rimwe, toner itari yo ikoreshwa, kandi fotokopi ubwayo "izahamagara abapolisi" yange gutangira.