Toner, yomwe imadziwikanso kuti toner, ndi chinthu chaufa chomwe chimagwiritsidwa ntchito mu osindikiza a laser kuti azitha kujambula pamapepala. Silinda ya ufa wa copier imapangidwa ndi utomoni wolumikizana, kaboni wakuda, wowongolera ndalama, zowonjezera zakunja ndi zigawo zina. Mtundu wa toner umafunikanso kuwonjezera mitundu yamitundu ina. Pamene tona imasindikizidwa, chifukwa cha monoma yotsalira mu resin volatilized ndi kutentha, idzatulutsa fungo lamphamvu, kotero kuti miyezo ya dziko ndi makampani ali ndi zoletsa zokhwima pa TVOC ya tona. Kotero bola mutagula chosindikizira kapena cartridge ya toner ya khalidwe lovomerezeka, simudzatulutsa mpweya woipa kuchokera kusindikiza.

Polymerization njira ndi zabwino mankhwala tona luso, zomwe zikuphatikizapo (kuyimitsidwa polymerization, emulsion polymerization, Mumakonda microcapsules, kupezeka polymerization, psinjika polymerization, mankhwala ufa. kukwaniritsa zofunikira zamakono zotetezera mphamvu ndi kuteteza chilengedwe Mwa kusintha mlingo wa dispersant, kuthamanga, nthawi ya polymerization ndi ndende ya yankho, kukula kwa tinthu ta tona kumayendetsedwa kuti tikwaniritse maonekedwe a yunifolomu, mtundu wabwino komanso kuwonekera kwambiri polymerization ili ndi mawonekedwe a tinthu tating'onoting'ono, kukula kwa tinthu tating'onoting'ono, kagawo kakang'ono kakang'ono kagawidwe kake komanso kufalikira kwabwino.