XEROX 4X8 PREMIUM EXTERNAL EX-P 3100 FIERY PRINT SERVER VERSANT 3100 PRESS. Thank You for Considering Interface Printers. Family owned and operated, Interface Printers LLC is the leading supplier of pre-owned Xerox production units and accessory types in the United States. We pride ourselves in providing the highest quality products at the lowest possible prices, offering our customers up to 70% off retail in many cases. All of our equipment is cleared of any error codes, cleaned and delivered ready for production. XEROX EFI® ENTRY-LEVEL CONTROLLER C9065/C9070. Listing and template services provided by inkFrog.