An exact fitting ribbon cassette enables easy and user-friendly replacement and does not jump out during printing. Perfect harmonisation between printer mechanism and ribbon transport means uniform distribution of colour which, in turn, ensures a clean and pleasing appearance and also makes ribbon-tightening a thing of the past. Of course, in the choice of ribbon fabric and mesh thickness, Epson pays special attention to the particular properties of the print head, in order to ensure that the ribbon does not fray and there is no chance of it getting stuck. In addition, costly repairs as a result of defective print heads and cash register breakdowns are avoided.