Lexmark C77X, C78X Duplex Unit

Supports A4, A5, JIS B5, Letter, Folio, Executive, Legal and Statement sizes. Paper (20 to 47#, 75 to 176gsm) and card stock (except A5) may be used with this unit.

An optional 500-Sheet Drawer is required when utilizing a 2000-Sheet Drawer and a Duplex Unit.

The first option under a duplex unit must be a 500-Sheet Drawer.

The duplex unit does not support A5 cardstock, outdoor media, banner paper, transparencies, envelopes, vinyl labels or polyester labels.