Panasonic KX-FC231
Panasonic KX-FC231 Plain paper fax machine uses KX-FA54E refill roll (Twin Pack)
Panasonic KXFA54E Fax Thermal Roll CompatiblePanasonic KXFA54E Fax Thermal Roll CompatiblePanasonic KXFA54E Fax Thermal Roll Compatible (Sonofax Brand) for Panasonic fax machines KXFP141AL / KXFP145AL / KX-FP141 / KX-FP142 / KX-FP143 / KX-FP145 / KX-FP146 / KX-FP148 / KX-FC231 / KX-FC233 / KX-FC235 / KX-FC238AL / KX-FC241 / KX-FC245 (213mm x 35M 2 Rolls per Box)

Panasonic KX-FC231 Plain paper fax machine uses KX-FA54E refill roll