Robinair ROB30038 PrinterPrinter that can be added to a 34788NI or 34788NI-H A/C Recover, Recycle and Recharge machineInstallation is simple and can be performed by a technician or owner of the machinePrint initial test resultsPrint the completed test report1 Year WarrantyThis printer is a nice to have item if youve ever had an instance where you w..