The printer that is used in the Roll Call child check in system is the Dymo 450, or Dymo 450 Turbo.  The older models (Dymo 330, Dymo 400, Dymo 400 Turbo) can also be used.  The Dymo 450 prints up to 51 labels per minute, while the Dymo 450 Turbo can print up to 71 labels per minute.  The graphic resolution has also increased with this model.