Manuals Brands Castelle Fax Machine Castelle Fax Machine Manuals ProdManuals has more than 7 Castelle Fax Machine manual(s) covering 7 model(s). 6 F U Models Document Type 6 61-1273-001 F FaxPress FaxPress 2500 FaxPress 5000 FaxPress 7000 FaxPress 7500 U UF-490