... brightness : 94~104% 4.OEM available copier paper materilweightbrightnesspackingsize100% virgin wood paper70-80gsmAbout 92%-104%500 sheets per ream ,and 5 or ... 10 reams per carton A3,A4,B4,B5 the features of the copier paperNo ... all kinds of laser,ink,jet printers and copiers.The copier paper is made in our own factory,so we can ...