It depends on what you pay for. High speed color banner printers that use inkjet are faster that color lasers. That is partly because there are few large banner

It depends on what you pay for. High speed color banner printers that use inkjet are faster that color lasers. That is partly because there are few large banner laser printers. Lasers are faster because they compute the exposure pattern, then expose the drum in a written band that then goes past the toner brush(a magnetic low force brush) where toner is attracted to the pattern defined by the laser or LED beams = 1 color, squashed, into color 2, color 3 and black. Once computed you can print a page every 2-3 seconds until toner or paper gone. Inkjets lay down a colored stripe, advance the paper, lay down another, advance. They can be made faster and bidirectional. You could make a banner printer that was cut down to 8.5 x 11 that would print a page a second