A ribbon cartridge includes a cartridge housing, a supply spool, a take-up spool, and a supply of ribbon. The cartridge housing includes a supply spool enclosure, a take-up spool enclosure, a pair of ribbon guides, and a gap between the ribbon guides and the supply and take-up spool enclosures. The supply spool is contained in the supply spool enclosure, and the take-up spool is contained in the take-up spool enclosure. The ribbon extends from the supply spool, over the ribbon guides and the gap, and to the take-up spool. Another aspect of the ribbon cartridge includes a cartridge housing and a cleaner roller. The cartridge housing includes front and rear walls. The cleaner roller is rotatably supported between the front and rear walls.