The invention provides for a modular printer including a housing having an upper and lower cover, with a first side wall having an air duct with an air inlet, and a second side wall defining air exit vents, so that warm air can be ducted over print media passing through the housing. The printer further includes entry and exit media feed roller assemblies at respective opposite ends of the housing for feeding the print media through the housing. Also included is a print engine having two opposing arcuate printheads having a radius of curvature which approximates that of the radius of the rollers. The printhead are at least partially received between opposite halves of the rollers of the entry roller assembly. The print engine is configured to print ink followed by a fixative onto the print media, with the feed assemblies configured to feed the media through the housing at a predetermined rate so that said media only leaves the housing when the fixative has dried.