mail ▁cap ability ▁( via ▁SM TP ) ▁ ▁TCP / IP ▁F ax ▁methods ▁such ▁as ▁S IP ▁F ax ▁( F ax ▁over ▁IP ), ▁Network ▁F ax ▁( via ▁SM TP ), ▁Internet ▁F ax ▁and ▁so ▁on ▁ ▁Copy ▁features / functions ▁ ▁Document ▁Fin ishing ▁capabilities ▁ ▁Du plex ▁output ▁ ▁St ap ling ▁ ▁Single ▁point ▁ ▁St ap le ▁position ing ▁ ▁Two ▁point ▁ ▁H ole ▁p unch ing ▁ ▁International ▁standard ▁ISO ▁ 8 3 8 ▁ 2 - hole ▁ ▁Swedish ▁" tri oh å l ning " ▁ 4 - hole ▁ ▁US ▁ 3 - hole ▁ ▁" 8 8 8 " ▁ 4 - hole ▁ ▁F old ing ▁ ▁Cover ▁binding ▁( gener ally ▁only ▁available ▁on ▁production ▁printing ▁models ) ▁- ▁diff ers ▁from ▁" cover ▁insert ion ", ▁in ▁that ▁a ▁cover ▁is ▁phys ically ▁bound ▁to ▁the ▁book ▁instead ▁of ▁simply ▁placing ▁it ▁around ▁the ▁other ▁pages . ▁ ▁Cover ▁binding ▁often ▁uses ▁hot ▁gl ue ▁to ▁bind ▁the ▁cover ▁to ▁the ▁finished ▁book . ▁ ▁Cover ▁insert ion ▁for ▁book lets ▁ ▁F old ▁and ▁centre ▁st ap le ▁( for ▁Book let ▁pag ination ) ▁ ▁Half ▁fol d ▁/ ▁cre ase ▁ ▁Tri - fold ▁/ ▁En velope - fold ing ▁ ▁Tr imming ▁for ▁fol ded ▁documents ▁to ▁avoid ▁" c ree p " ▁ ▁Document ▁editing ▁modes ▁ ▁Book let ▁pag ination ▁/ ▁" per fect ▁binding " ▁book let ▁pag