Fast...Tough...Does More... Compared to competitive mobile printers, the Brother RuggedJet 4" mobile printers offer fast print speeds for higher productivity, they're built tough to meet the needs of mobile professionals, and they provide a better total cost of ownership than non- ruggedized mobile printers. The RuggedJet printer is also versatile - easily printing a wide range of receipts AND labels from 2 to 4 inches wide, and also includes a strong set of drivers and control languages, all to meet the demands of a variety of vertical market applications.